]> git.ipfire.org Git - thirdparty/qemu.git/log
thirdparty/qemu.git
10 months agoUpdate version for 9.0.2 release v9.0.2
Michael Tokarev [Tue, 16 Jul 2024 05:41:19 +0000 (08:41 +0300)] 
Update version for 9.0.2 release

Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
11 months agohw/nvme: fix number of PIDs for FDP RUH update
Vincent Fu [Fri, 3 May 2024 17:50:04 +0000 (13:50 -0400)] 
hw/nvme: fix number of PIDs for FDP RUH update

The number of PIDs is in the upper 16 bits of cdw10. So we need to
right-shift by 16 bits instead of only a single bit.

Fixes: 73064edfb864 ("hw/nvme: flexible data placement emulation")
Cc: qemu-stable@nongnu.org
Signed-off-by: Vincent Fu <vincent.fu@samsung.com>
Reviewed-by: Klaus Jensen <k.jensen@samsung.com>
Signed-off-by: Klaus Jensen <k.jensen@samsung.com>
(cherry picked from commit 3936bbdf9a2e9233875f850c7576c79d06add261)
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
11 months agosphinx/qapidoc: Fix to generate doc for explicit, unboxed arguments
Markus Armbruster [Fri, 28 Jun 2024 11:27:56 +0000 (13:27 +0200)] 
sphinx/qapidoc: Fix to generate doc for explicit, unboxed arguments

When a command's arguments are specified as an explicit type T,
generated documentation points to the members of T.

Example:

    ##
    # @announce-self:
    #
    # Trigger generation of broadcast RARP frames to update network
    [...]
    ##
    { 'command': 'announce-self', 'boxed': true,
      'data' : 'AnnounceParameters'}

generates

    "announce-self" (Command)
    -------------------------

    Trigger generation of broadcast RARP frames to update network
    [...]

    Arguments
    ~~~~~~~~~

    The members of "AnnounceParameters"

Except when the command takes its arguments unboxed , i.e. it doesn't
have 'boxed': true, we generate *nothing*.  A few commands have a
reference in their doc comment to compensate, but most don't.

Example:

    ##
    # @blockdev-snapshot-sync:
    #
    # Takes a synchronous snapshot of a block device.
    #
    # For the arguments, see the documentation of BlockdevSnapshotSync.
    [...]
    ##
    { 'command': 'blockdev-snapshot-sync',
      'data': 'BlockdevSnapshotSync',
      'allow-preconfig': true }

generates

    "blockdev-snapshot-sync" (Command)
    ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

    Takes a synchronous snapshot of a block device.

    For the arguments, see the documentation of BlockdevSnapshotSync.
    [...]

Same for event data.

Fix qapidoc.py to generate the reference regardless of boxing.  Delete
now redundant references in the doc comments.

Fixes: 4078ee5469e5 (docs/sphinx: Add new qapi-doc Sphinx extension)
Cc: qemu-stable@nongnu.org
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-ID: <20240628112756.794237-1-armbru@redhat.com>
Reviewed-by: John Snow <jsnow@redhat.com>
(cherry picked from commit e389929d19a543ea5b34d02553b355f9f1c03162)
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
11 months agochar-stdio: Restore blocking mode of stdout on exit
Maxim Mikityanskiy [Wed, 3 Jul 2024 19:08:12 +0000 (22:08 +0300)] 
char-stdio: Restore blocking mode of stdout on exit

qemu_chr_open_fd() sets stdout into non-blocking mode. Restore the old
fd flags on exit to avoid breaking unsuspecting applications that run on
the same terminal after qemu and don't expect to get EAGAIN.

While at at, also ensure term_exit is called once (at the moment it's
called both from char_stdio_finalize() and as the atexit() hook.

Resolves: https://gitlab.com/qemu-project/qemu/-/issues/2423
Signed-off-by: Maxim Mikityanskiy <maxtram95@gmail.com>
Link: https://lore.kernel.org/r/20240703190812.3459514-1-maxtram95@gmail.com
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
(cherry picked from commit a0124e333e2176640f233e5ea57a2f413985d9b5)
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
11 months agovirtio: remove virtio_tswap16s() call in vring_packed_event_read()
Stefano Garzarella [Mon, 1 Jul 2024 07:52:08 +0000 (09:52 +0200)] 
virtio: remove virtio_tswap16s() call in vring_packed_event_read()

Commit d152cdd6f6 ("virtio: use virtio accessor to access packed event")
switched using of address_space_read_cached() to virito_lduw_phys_cached()
to access packed descriptor event.

When we used address_space_read_cached(), we needed to call
virtio_tswap16s() to handle the endianess of the field, but
virito_lduw_phys_cached() already handles it internally, so we no longer
need to call virtio_tswap16s() (as the commit had done for `off_wrap`,
but forgot for `flags`).

Fixes: d152cdd6f6 ("virtio: use virtio accessor to access packed event")
Cc: jasowang@redhat.com
Cc: qemu-stable@nongnu.org
Reported-by: Xoykie <xoykie@gmail.com>
Link: https://lore.kernel.org/qemu-devel/CAFU8RB_pjr77zMLsM0Unf9xPNxfr_--Tjr49F_eX32ZBc5o2zQ@mail.gmail.com
Signed-off-by: Stefano Garzarella <sgarzare@redhat.com>
Message-Id: <20240701075208.19634-1-sgarzare@redhat.com>
Acked-by: Jason Wang <jasowang@redhat.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Eugenio Pérez <eperezma@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
(cherry picked from commit 7aa6492401e95fb296dec7cda81e67d91f6037d7)
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
11 months agovirtio-pci: Fix the failure process in kvm_virtio_pci_vector_use_one()
Cindy Lu [Tue, 28 May 2024 08:48:15 +0000 (16:48 +0800)] 
virtio-pci: Fix the failure process in kvm_virtio_pci_vector_use_one()

In function kvm_virtio_pci_vector_use_one(), the function will only use
the irqfd/vector for itself. Therefore, in the undo label, the failing
process is incorrect.
To fix this, we can just remove this label.

Fixes: f9a09ca3ea ("vhost: add support for configure interrupt")
Cc: qemu-stable@nongnu.org
Signed-off-by: Cindy Lu <lulu@redhat.com>
Message-Id: <20240528084840.194538-1-lulu@redhat.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
(cherry picked from commit a113d041e8d0b152d72a7c2bf47dd09aabf9ade2)
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
11 months agotcg/optimize: Fix TCG_COND_TST* simplification of setcond2
Richard Henderson [Mon, 1 Jul 2024 02:46:23 +0000 (19:46 -0700)] 
tcg/optimize: Fix TCG_COND_TST* simplification of setcond2

Argument ordering for setcond2 is:

  output, a_low, a_high, b_low, b_high, cond

The test is supposed to be against b_low, not a_high.

Cc: qemu-stable@nongnu.org
Fixes: ceb9ee06b71 ("tcg/optimize: Handle TCG_COND_TST{EQ,NE}")
Resolves: https://gitlab.com/qemu-project/qemu/-/issues/2413
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Tested-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20240701024623.1265028-1-richard.henderson@linaro.org>
(cherry picked from commit a71d9dfbf63db42d6e6ae87fc112d1f5502183bd)
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
11 months agoblock: Parse filenames only when explicitly requested
Kevin Wolf [Thu, 25 Apr 2024 12:56:02 +0000 (14:56 +0200)] 
block: Parse filenames only when explicitly requested

When handling image filenames from legacy options such as -drive or from
tools, these filenames are parsed for protocol prefixes, including for
the json:{} pseudo-protocol.

This behaviour is intended for filenames that come directly from the
command line and for backing files, which may come from the image file
itself. Higher level management tools generally take care to verify that
untrusted images don't contain a bad (or any) backing file reference;
'qemu-img info' is a suitable tool for this.

However, for other files that can be referenced in images, such as
qcow2 data files or VMDK extents, the string from the image file is
usually not verified by management tools - and 'qemu-img info' wouldn't
be suitable because in contrast to backing files, it already opens these
other referenced files. So here the string should be interpreted as a
literal local filename. More complex configurations need to be specified
explicitly on the command line or in QMP.

This patch changes bdrv_open_inherit() so that it only parses filenames
if a new parameter parse_filename is true. It is set for the top level
in bdrv_open(), for the file child and for the backing file child. All
other callers pass false and disable filename parsing this way.

Cc: qemu-stable@nongnu.org
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Hanna Czenczek <hreitz@redhat.com>
(cherry picked from commit 7ead946998610657d38d1a505d5f25300d4ca613)
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
11 months agoiotests/270: Don't store data-file with json: prefix in image
Kevin Wolf [Thu, 25 Apr 2024 12:49:40 +0000 (14:49 +0200)] 
iotests/270: Don't store data-file with json: prefix in image

We want to disable filename parsing for data files because it's too easy
to abuse in malicious image files. Make the test ready for the change by
passing the data file explicitly in command line options.

Cc: qemu-stable@nongnu.org
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Hanna Czenczek <hreitz@redhat.com>
(cherry picked from commit 7e1110664ecbc4826f3c978ccb06b6c1bce823e6)
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
11 months agoiotests/244: Don't store data-file with protocol in image
Kevin Wolf [Thu, 25 Apr 2024 12:49:40 +0000 (14:49 +0200)] 
iotests/244: Don't store data-file with protocol in image

We want to disable filename parsing for data files because it's too easy
to abuse in malicious image files. Make the test ready for the change by
passing the data file explicitly in command line options.

Cc: qemu-stable@nongnu.org
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Hanna Czenczek <hreitz@redhat.com>
(cherry picked from commit 2eb42a728d27a43fdcad5f37d3f65706ce6deba5)
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
11 months agoqcow2: Don't open data_file with BDRV_O_NO_IO
Kevin Wolf [Thu, 11 Apr 2024 13:06:01 +0000 (15:06 +0200)] 
qcow2: Don't open data_file with BDRV_O_NO_IO

One use case for 'qemu-img info' is verifying that untrusted images
don't reference an unwanted external file, be it as a backing file or an
external data file. To make sure that calling 'qemu-img info' can't
already have undesired side effects with a malicious image, just don't
open the data file at all with BDRV_O_NO_IO. If nothing ever tries to do
I/O, we don't need to have it open.

This changes the output of iotests case 061, which used 'qemu-img info'
to show that opening an image with an invalid data file fails. After
this patch, it succeeds. Replace this part of the test with a qemu-io
call, but keep the final 'qemu-img info' to show that the invalid data
file is correctly displayed in the output.

Fixes: CVE-2024-4467
Cc: qemu-stable@nongnu.org
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Hanna Czenczek <hreitz@redhat.com>
(cherry picked from commit bd385a5298d7062668e804d73944d52aec9549f1)
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
11 months agotests: add testing of parameter=1 for SMP topology
Daniel P. Berrangé [Mon, 13 May 2024 12:33:58 +0000 (13:33 +0100)] 
tests: add testing of parameter=1 for SMP topology

Validate that it is possible to pass 'parameter=1' for any SMP topology
parameter, since unsupported parameters are implicitly considered to
always have a value of 1.

Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
Reviewed-by: Zhao Liu <zhao1.liu@intel.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Message-ID: <20240513123358.612355-3-berrange@redhat.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
(cherry picked from commit e68dcbb07923df0886802727edc3b21a10b0d342)
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
11 months agohw/core: allow parameter=1 for SMP topology on any machine
Daniel P. Berrangé [Mon, 13 May 2024 12:33:57 +0000 (13:33 +0100)] 
hw/core: allow parameter=1 for SMP topology on any machine

This effectively reverts

  commit 54c4ea8f3ae614054079395842128a856a73dbf9
  Author: Zhao Liu <zhao1.liu@intel.com>
  Date:   Sat Mar 9 00:01:37 2024 +0800

    hw/core/machine-smp: Deprecate unsupported "parameter=1" SMP configurations

but is not done as a 'git revert' since the part of the changes to the
file hw/core/machine-smp.c which add 'has_XXX' checks remain desirable.
Furthermore, we have to tweak the subsequently added unit test to
account for differing warning message.

The rationale for the original deprecation was:

  "Currently, it was allowed for users to specify the unsupported
   topology parameter as "1". For example, x86 PC machine doesn't
   support drawer/book/cluster topology levels, but user could specify
   "-smp drawers=1,books=1,clusters=1".

   This is meaningless and confusing, so that the support for this kind
   of configurations is marked deprecated since 9.0."

There are varying POVs on the topic of 'unsupported' topology levels.

It is common to say that on a system without hyperthreading, that there
is always 1 thread. Likewise when new CPUs introduced a concept of
multiple "dies', it was reasonable to say that all historical CPUs
before that implicitly had 1 'die'. Likewise for the more recently
introduced 'modules' and 'clusters' parameter'. From this POV, it is
valid to set 'parameter=1' on the -smp command line for any machine,
only a value > 1 is strictly an error condition.

It doesn't cause any functional difficulty for QEMU, because internally
the QEMU code is itself assuming that all "unsupported" parameters
implicitly have a value of '1'.

At the libvirt level, we've allowed applications to set 'parameter=1'
when configuring a guest, and pass that through to QEMU.

Deprecating this creates extra difficulty for because there's no info
exposed from QEMU about which machine types "support" which parameters.
Thus, libvirt can't know whether it is valid to pass 'parameter=1' for
a given machine type, or whether it will trigger deprecation messages.

Since there's no apparent functional benefit to deleting this deprecated
behaviour from QEMU, and it creates problems for consumers of QEMU,
remove this deprecation.

Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
Reviewed-by: Zhao Liu <zhao1.liu@intel.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Message-ID: <20240513123358.612355-2-berrange@redhat.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
(cherry picked from commit 9d7950edb0cdf8f4e5746e220e6e8a9e713bad16)
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
(Mjt: remove hunk about modules in hw/core/machine-smp.c introduced in
 v9.0.0-155-g8ec0a4634798 "hw/core/machine: Support modules in -smp")

11 months agotarget/arm: Fix FJCVTZS vs flush-to-zero
Richard Henderson [Tue, 25 Jun 2024 18:35:26 +0000 (11:35 -0700)] 
target/arm: Fix FJCVTZS vs flush-to-zero

Input denormals cause the Javascript inexact bit
(output to Z) to be set.

Cc: qemu-stable@nongnu.org
Fixes: 6c1f6f2733a ("target/arm: Implement ARMv8.3-JSConv")
Resolves: https://gitlab.com/qemu-project/qemu/-/issues/2375
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20240625183536.1672454-4-richard.henderson@linaro.org
[PMM: fixed hardcoded tab in test case]
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
(cherry picked from commit 7619129f0d4a14d918227c5c47ad7433662e9ccc)
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
11 months agotarget/arm: Fix VCMLA Dd, Dn, Dm[idx]
Richard Henderson [Tue, 25 Jun 2024 18:35:24 +0000 (11:35 -0700)] 
target/arm: Fix VCMLA Dd, Dn, Dm[idx]

The inner loop, bounded by eltspersegment, must not be
larger than the outer loop, bounded by elements.

Cc: qemu-stable@nongnu.org
Fixes: 18fc2405781 ("target/arm: Implement SVE fp complex multiply add (indexed)")
Resolves: https://gitlab.com/qemu-project/qemu/-/issues/2376
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20240625183536.1672454-2-richard.henderson@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
(cherry picked from commit 76bccf3cb9d9383da0128bbc6d1300cddbe3ae8f)
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
11 months agoi386/cpu: fixup number of addressable IDs for processor cores in the physical package
Chuang Xu [Tue, 11 Jun 2024 03:23:14 +0000 (11:23 +0800)] 
i386/cpu: fixup number of addressable IDs for processor cores in the physical package

When QEMU is started with:
-cpu host,host-cache-info=on,l3-cache=off \
-smp 2,sockets=1,dies=1,cores=1,threads=2
Guest can't acquire maximum number of addressable IDs for processor cores in
the physical package from CPUID[04H].

When creating a CPU topology of 1 core per package, host-cache-info only
uses the Host's addressable core IDs field (CPUID.04H.EAX[bits 31-26]),
resulting in a conflict (on the multicore Host) between the Guest core
topology information in this field and the Guest's actual cores number.

Fix it by removing the unnecessary condition to cover 1 core per package
case. This is safe because cores_per_pkg will not be 0 and will be at
least 1.

Fixes: d7caf13b5fcf ("x86: cpu: fixup number of addressable IDs for logical processors sharing cache")
Signed-off-by: Guixiong Wei <weiguixiong@bytedance.com>
Signed-off-by: Yipeng Yin <yinyipeng@bytedance.com>
Signed-off-by: Chuang Xu <xuchuangxclwt@bytedance.com>
Reviewed-by: Zhao Liu <zhao1.liu@intel.com>
Message-ID: <20240611032314.64076-1-xuchuangxclwt@bytedance.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
(cherry picked from commit 903916f0a017fe4b7789f1c6c6982333a5a71876)
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
(Mjt: fixup for 9.0 due to other changes in this area past 9.0)

11 months agotests: Update our CI to use CentOS Stream 9 instead of 8
Thomas Huth [Thu, 18 Apr 2024 10:10:47 +0000 (12:10 +0200)] 
tests: Update our CI to use CentOS Stream 9 instead of 8

RHEL 9 (and thus also the derivatives) have been available since two
years now, so according to QEMU's support policy, we can drop the active
support for the previous major version 8 now.

Another reason for doing this is that Centos Stream 8 will go EOL soon:

https://blog.centos.org/2023/04/end-dates-are-coming-for-centos-stream-8-and-centos-linux-7/

  "After May 31, 2024, CentOS Stream 8 will be archived
   and no further updates will be provided."

Thus upgrade our CentOS Stream container to major version 9 now.

Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Message-ID: <20240418101056.302103-5-thuth@redhat.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
(cherry picked from commit 641b1efe01b2dd6e7ac92f23d392dcee73508746)
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
11 months agomigration: Fix file migration with fdset
Fabiano Rosas [Mon, 17 Jun 2024 18:57:17 +0000 (15:57 -0300)] 
migration: Fix file migration with fdset

When the "file:" migration support was added we missed the special
case in the qemu_open_old implementation that allows for a particular
file name format to be used to refer to a set of file descriptors that
have been previously provided to QEMU via the add-fd QMP command.

When using this fdset feature, we should not truncate the migration
file because being given an fd means that the management layer is in
control of the file and will likely already have some data written to
it. This is further indicated by the presence of the 'offset'
argument, which indicates the start of the region where QEMU is
allowed to write.

Fix the issue by replacing the O_TRUNC flag on open by an ftruncate
call, which will take the offset into consideration.

Fixes: 385f510df5 ("migration: file URI offset")
Suggested-by: Daniel P. Berrangé <berrange@redhat.com>
Reviewed-by: Prasad Pandit <pjp@fedoraproject.org>
Reviewed-by: Peter Xu <peterx@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Signed-off-by: Fabiano Rosas <farosas@suse.de>
(cherry picked from commit 6d3279655ac49b806265f08415165f471d33e032)
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
11 months agotcg/loongarch64: Fix tcg_out_movi vs some pcrel pointers
Richard Henderson [Wed, 19 Jun 2024 05:41:13 +0000 (05:41 +0000)] 
tcg/loongarch64: Fix tcg_out_movi vs some pcrel pointers

Simplify the logic for two-part, 32-bit pc-relative addresses.
Rather than assume all such fit in int32_t, do some arithmetic
and assert a result, do some arithmetic first and then check
to see if the pieces are in range.

Cc: qemu-stable@nongnu.org
Fixes: dacc51720db ("tcg/loongarch64: Implement tcg_out_mov and tcg_out_movi")
Reviewed-by: Song Gao <gaosong@loongson.cn>
Reported-by: Song Gao <gaosong@loongson.cn>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
(cherry picked from commit 521d7fb3ebdf88112ed13556a93e3037742b9eb8)
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
11 months agotarget/sparc: use signed denominator in sdiv helper
Clément Chigot [Thu, 6 Jun 2024 14:43:31 +0000 (16:43 +0200)] 
target/sparc: use signed denominator in sdiv helper

The result has to be done with the signed denominator (b32) instead of
the unsigned value passed in argument (b).

Cc: qemu-stable@nongnu.org
Fixes: 1326010322d6 ("target/sparc: Remove CC_OP_DIV")
Resolves: https://gitlab.com/qemu-project/qemu/-/issues/2319
Signed-off-by: Clément Chigot <chigot@adacore.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20240606144331.698361-1-chigot@adacore.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
(cherry picked from commit 6b4965373e561b77f91cfbdf41353635c9661358)
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
11 months agolinux-user: Make TARGET_NR_setgroups affect only the current thread
Ilya Leoshkevich [Fri, 14 Jun 2024 15:46:40 +0000 (17:46 +0200)] 
linux-user: Make TARGET_NR_setgroups affect only the current thread

Like TARGET_NR_setuid, TARGET_NR_setgroups should affect only the
calling thread, and not the entire process. Therefore, implement it
using a syscall, and not a libc call.

Cc: qemu-stable@nongnu.org
Fixes: 19b84f3c35d7 ("added setgroups and getgroups syscalls")
Signed-off-by: Ilya Leoshkevich <iii@linux.ibm.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-Id: <20240614154710.1078766-1-iii@linux.ibm.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
(cherry picked from commit 54b27921026df384f67df86f04c39539df375c60)
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
11 months agoaccel/tcg: Fix typo causing tb->page_addr[1] to not be recorded
Anton Johansson [Wed, 12 Jun 2024 13:30:31 +0000 (15:30 +0200)] 
accel/tcg: Fix typo causing tb->page_addr[1] to not be recorded

For TBs crossing page boundaries, the 2nd page will never be
recorded/removed, as the index of the 2nd page is computed from the
address of the 1st page. This is due to a typo, fix it.

Cc: qemu-stable@nongnu.org
Fixes: deba78709a ("accel/tcg: Always lock pages before translation")
Signed-off-by: Anton Johansson <anjo@rev.ng>
Reviewed-by: Manos Pitsidianakis <manos.pitsidianakis@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20240612133031.15298-1-anjo@rev.ng>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
(cherry picked from commit 3b279f73fa37bec8d3ba04a15f5153d6491cffaf)
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
11 months agostdvga: fix screen blanking
Gerd Hoffmann [Wed, 5 Jun 2024 13:14:41 +0000 (15:14 +0200)] 
stdvga: fix screen blanking

In case the display surface uses a shared buffer (i.e. uses vga vram
directly instead of a shadow) go unshare the buffer before clearing it.

This avoids vga memory corruption, which in turn fixes unblanking not
working properly with X11.

Cc: qemu-stable@nongnu.org
Resolves: https://gitlab.com/qemu-project/qemu/-/issues/2067
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-ID: <20240605131444.797896-2-kraxel@redhat.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
(cherry picked from commit b1cf266c82cb1211ee2785f1813a6a3f3e693390)
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
11 months agohw/audio/virtio-snd: Always use little endian audio format
Philippe Mathieu-Daudé [Mon, 22 Apr 2024 12:47:23 +0000 (14:47 +0200)] 
hw/audio/virtio-snd: Always use little endian audio format

The VIRTIO Sound Device conforms with the Virtio spec v1.2,
thus only use little endianness.

Remove the suspicious target_words_bigendian() noticed during
code review.

Cc: qemu-stable@nongnu.org
Fixes: eb9ad377bb ("virtio-sound: handle control messages and streams")
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Message-Id: <20240422211830.25606-1-philmd@linaro.org>
(cherry picked from commit a276ec8e2632c9015d0f9b4e47194e4e91dfa8bb)
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
12 months agoRevert "monitor: use aio_co_reschedule_self()"
Stefan Hajnoczi [Mon, 6 May 2024 19:06:21 +0000 (15:06 -0400)] 
Revert "monitor: use aio_co_reschedule_self()"

Commit 1f25c172f837 ("monitor: use aio_co_reschedule_self()") was a code
cleanup that uses aio_co_reschedule_self() instead of open coding
coroutine rescheduling.

Bug RHEL-34618 was reported and Kevin Wolf <kwolf@redhat.com> identified
the root cause. I missed that aio_co_reschedule_self() ->
qemu_get_current_aio_context() only knows about
qemu_aio_context/IOThread AioContexts and not about iohandler_ctx. It
does not function correctly when going back from the iohandler_ctx to
qemu_aio_context.

Go back to open coding the AioContext transitions to avoid this bug.

This reverts commit 1f25c172f83704e350c0829438d832384084a74d.

Cc: qemu-stable@nongnu.org
Buglink: https://issues.redhat.com/browse/RHEL-34618
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Message-ID: <20240506190622.56095-2-stefanha@redhat.com>
Reviewed-by: Kevin Wolf <kwolf@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
(cherry picked from commit 719c6819ed9a9838520fa732f9861918dc693bda)
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
12 months agoui/gtk: Draw guest frame at refresh cycle
Dongwon Kim [Fri, 26 Apr 2024 22:50:59 +0000 (15:50 -0700)] 
ui/gtk: Draw guest frame at refresh cycle

Draw routine needs to be manually invoked in the next refresh
if there is a scanout blob from the guest. This is to prevent
a situation where there is a scheduled draw event but it won't
happen bacause the window is currently in inactive state
(minimized or tabified). If draw is not done for a long time,
gl_block timeout and/or fence timeout (on the guest) will happen
eventually.

v2: Use gd_gl_area_draw(vc) in gtk-gl-area.c

Suggested-by: Vivek Kasireddy <vivek.kasireddy@intel.com>
Cc: Gerd Hoffmann <kraxel@redhat.com>
Cc: Marc-André Lureau <marcandre.lureau@redhat.com>
Cc: Daniel P. Berrangé <berrange@redhat.com>
Signed-off-by: Dongwon Kim <dongwon.kim@intel.com>
Acked-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-Id: <20240426225059.3871283-1-dongwon.kim@intel.com>
(cherry picked from commit 77bf310084dad38b3a2badf01766c659056f1cf2)
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
12 months agovirtio-net: drop too short packets early
Alexey Dobriyan [Tue, 30 Apr 2024 10:53:33 +0000 (13:53 +0300)] 
virtio-net: drop too short packets early

Reproducer from https://gitlab.com/qemu-project/qemu/-/issues/1451
creates small packet (1 segment, len = 10 == n->guest_hdr_len),
then destroys queue.

"if (n->host_hdr_len != n->guest_hdr_len)" is triggered, if body creates
zero length/zero segment packet as there is nothing after guest header.

qemu_sendv_packet_async() tries to send it.

slirp discards it because it is smaller than Ethernet header,
but returns 0 because tx hooks are supposed to return total length of data.

0 is propagated upwards and is interpreted as "packet has been sent"
which is terrible because queue is being destroyed, nobody is waiting for TX
to complete and assert it triggered.

Fix is discard such empty packets instead of sending them.

Length 1 packets will go via different codepath:

virtqueue_push(q->tx_vq, elem, 0);
virtio_notify(vdev, q->tx_vq);
g_free(elem);

and aren't problematic.

Signed-off-by: Alexey Dobriyan <adobriyan@yandex-team.ru>
Signed-off-by: Jason Wang <jasowang@redhat.com>
(cherry picked from commit 2c3e4e2de699cd4d9f6c71f30a22d8f125cd6164)
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
12 months agotarget/i386: fix size of EBP writeback in gen_enter()
Mark Cave-Ayland [Thu, 6 Jun 2024 09:53:19 +0000 (10:53 +0100)] 
target/i386: fix size of EBP writeback in gen_enter()

The calculation of FrameTemp is done using the size indicated by mo_pushpop()
before being written back to EBP, but the final writeback to EBP is done using
the size indicated by mo_stacksize().

In the case where mo_pushpop() is MO_32 and mo_stacksize() is MO_16 then the
final writeback to EBP is done using MO_16 which can leave junk in the top
16-bits of EBP after executing ENTER.

Change the writeback of EBP to use the same size indicated by mo_pushpop() to
ensure that the full value is written back.

Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Resolves: https://gitlab.com/qemu-project/qemu/-/issues/2198
Message-ID: <20240606095319.229650-5-mark.cave-ayland@ilande.co.uk>
Cc: qemu-stable@nongnu.org
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
(cherry picked from commit 3973615e7fbaeef1deeaa067577e373781ced70a)
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
12 months agoUpdate version for 9.0.1 release v9.0.1
Michael Tokarev [Sat, 8 Jun 2024 21:24:11 +0000 (00:24 +0300)] 
Update version for 9.0.1 release

Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
12 months agotarget/loongarch: fix a wrong print in cpu dump
lanyanzhi [Tue, 4 Jun 2024 07:38:31 +0000 (15:38 +0800)] 
target/loongarch: fix a wrong print in cpu dump

description:
    loongarch_cpu_dump_state() want to dump all loongarch cpu
state registers, but there is a tiny typographical error when
printing "PRCFG2".

Cc: qemu-stable@nongnu.org
Signed-off-by: lanyanzhi <lanyanzhi22b@ict.ac.cn>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Song Gao <gaosong@loongson.cn>
Message-Id: <20240604073831.666690-1-lanyanzhi22b@ict.ac.cn>
Signed-off-by: Song Gao <gaosong@loongson.cn>
(cherry picked from commit 78f932ea1f7b3b9b0ac628dc2a91281318fe51fa)
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
12 months agoui/sdl2: Allow host to power down screen
Bernhard Beschow [Sun, 12 May 2024 09:59:45 +0000 (11:59 +0200)] 
ui/sdl2: Allow host to power down screen

By default, SDL disables the screen saver which prevents the host from powering
down the screen even if the screen is locked. This results in draining the
battery needlessly when the host isn't connected to a wall charger. Fix that by
enabling the screen saver.

Signed-off-by: Bernhard Beschow <shentey@gmail.com>
Acked-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-ID: <20240512095945.1879-1-shentey@gmail.com>
(cherry picked from commit 2e701e6785cd8cc048c608751c6e4f6253c67ab6)
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
12 months agovirtio-gpu: fix v2 migration
Marc-André Lureau [Thu, 16 May 2024 08:40:22 +0000 (12:40 +0400)] 
virtio-gpu: fix v2 migration

Commit dfcf74fa ("virtio-gpu: fix scanout migration post-load") broke
forward/backward version migration. Versioning of nested VMSD structures
is not straightforward, as the wire format doesn't have nested
structures versions. Introduce x-scanout-vmstate-version and a field
test to save/load appropriately according to the machine version.

Fixes: dfcf74fa ("virtio-gpu: fix scanout migration post-load")
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Signed-off-by: Peter Xu <peterx@redhat.com>
Reviewed-by: Fiona Ebner <f.ebner@proxmox.com>
Tested-by: Fiona Ebner <f.ebner@proxmox.com>
[fixed long lines]
Signed-off-by: Fabiano Rosas <farosas@suse.de>
(cherry picked from commit 40a23ef643664b5c1021a9789f9d680b6294fb50)
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
12 months agotarget/i386: fix SSE and SSE2 feature check
Xinyu Li [Sun, 2 Jun 2024 10:09:04 +0000 (18:09 +0800)] 
target/i386: fix SSE and SSE2 feature check

Features check of CPUID_SSE and CPUID_SSE2 should use cpuid_features,
rather than cpuid_ext_features.

Signed-off-by: Xinyu Li <lixinyu20s@ict.ac.cn>
Reviewed-by: Zhao Liu <zhao1.liu@intel.com>
Message-ID: <20240602100904.2137939-1-lixinyu20s@ict.ac.cn>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
(cherry picked from commit da7c95920d027dbb00c6879c1da0216b19509191)
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
12 months agotarget/i386: fix xsave.flat from kvm-unit-tests
Paolo Bonzini [Mon, 3 Jun 2024 10:01:12 +0000 (12:01 +0200)] 
target/i386: fix xsave.flat from kvm-unit-tests

xsave.flat checks that "executing the XSETBV instruction causes a general-
protection fault (#GP) if ECX = 0 and EAX[2:1] has the value 10b".  QEMU allows
that option, so the test fails.  Add the condition.

Cc: qemu-stable@nongnu.org
Fixes: 892544317fe ("target/i386: implement XSAVE and XRSTOR of AVX registers", 2022-10-18)
Reported-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
(cherry picked from commit 7604bbc2d87d153e65e38cf2d671a5a9a35917b1)
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
12 months agodisas/riscv: Decode all of the pmpcfg and pmpaddr CSRs
Alistair Francis [Tue, 14 May 2024 05:16:15 +0000 (15:16 +1000)] 
disas/riscv: Decode all of the pmpcfg and pmpaddr CSRs

Previously we only listed a single pmpcfg CSR and the first 16 pmpaddr
CSRs. This patch fixes this to list all 16 pmpcfg and all 64 pmpaddr
CSRs are part of the disassembly.

Reported-by: Eric DeVolder <eric_devolder@yahoo.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
Fixes: ea10325917 ("RISC-V Disassembler")
Reviewed-by: Daniel Henrique Barboza <dbarboza@ventanamicro.com>
Cc: qemu-stable <qemu-stable@nongnu.org>
Message-ID: <20240514051615.330979-1-alistair.francis@wdc.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
(cherry picked from commit 915758c537b5fe09575291f4acd87e2d377a93de)
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
12 months agoriscv, gdbstub.c: fix reg_width in ricsv_gen_dynamic_vector_feature()
Daniel Henrique Barboza [Fri, 17 May 2024 20:30:54 +0000 (17:30 -0300)] 
riscv, gdbstub.c: fix reg_width in ricsv_gen_dynamic_vector_feature()

Commit 33a24910ae changed 'reg_width' to use 'vlenb', i.e. vector length
in bytes, when in this context we want 'reg_width' as the length in
bits.

Fix 'reg_width' back to the value in bits like 7cb59921c05a
("target/riscv/gdbstub.c: use 'vlenb' instead of shifting 'vlen'") set
beforehand.

While we're at it, rename 'reg_width' to 'bitsize' to provide a bit more
clarity about what the variable represents. 'bitsize' is also used in
riscv_gen_dynamic_csr_feature() with the same purpose, i.e. as an input to
gdb_feature_builder_append_reg().

Cc: Akihiko Odaki <akihiko.odaki@daynix.com>
Cc: Alex Bennée <alex.bennee@linaro.org>
Reported-by: Robin Dapp <rdapp.gcc@gmail.com>
Fixes: 33a24910ae ("target/riscv: Use GDBFeature for dynamic XML")
Signed-off-by: Daniel Henrique Barboza <dbarboza@ventanamicro.com>
Reviewed-by: LIU Zhiwei <zhiwei_liu@linux.alibaba.com>
Acked-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Akihiko Odaki <akihiko.odaki@daynix.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Cc: qemu-stable <qemu-stable@nongnu.org>
Message-ID: <20240517203054.880861-2-dbarboza@ventanamicro.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
(cherry picked from commit 583edc4efb7f4075212bdee281f336edfa532e3f)
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
12 months agotarget/riscv/kvm.c: Fix the hart bit setting of AIA
Yong-Xuan Wang [Wed, 15 May 2024 09:11:28 +0000 (17:11 +0800)] 
target/riscv/kvm.c: Fix the hart bit setting of AIA

In AIA spec, each hart (or each hart within a group) has a unique hart
number to locate the memory pages of interrupt files in the address
space. The number of bits required to represent any hart number is equal
to ceil(log2(hmax + 1)), where hmax is the largest hart number among
groups.

However, if the largest hart number among groups is a power of 2, QEMU
will pass an inaccurate hart-index-bit setting to Linux. For example, when
the guest OS has 4 harts, only ceil(log2(3 + 1)) = 2 bits are sufficient
to represent 4 harts, but we passes 3 to Linux. The code needs to be
updated to ensure accurate hart-index-bit settings.

Additionally, a Linux patch[1] is necessary to correctly recover the hart
index when the guest OS has only 1 hart, where the hart-index-bit is 0.

[1] https://lore.kernel.org/lkml/20240415064905.25184-1-yongxuan.wang@sifive.com/t/

Signed-off-by: Yong-Xuan Wang <yongxuan.wang@sifive.com>
Reviewed-by: Andrew Jones <ajones@ventanamicro.com>
Cc: qemu-stable <qemu-stable@nongnu.org>
Message-ID: <20240515091129.28116-1-yongxuan.wang@sifive.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
(cherry picked from commit 190b867f28cb5781f3cd01a3deb371e4211595b1)
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
12 months agotarget/riscv: rvzicbo: Fixup CBO extension register calculation
Alistair Francis [Tue, 14 May 2024 02:39:10 +0000 (12:39 +1000)] 
target/riscv: rvzicbo: Fixup CBO extension register calculation

When running the instruction

```
    cbo.flush 0(x0)
```

QEMU would segfault.

The issue was in cpu_gpr[a->rs1] as QEMU does not have cpu_gpr[0]
allocated.

In order to fix this let's use the existing get_address()
helper. This also has the benefit of performing pointer mask
calculations on the address specified in rs1.

The pointer masking specificiation specifically states:

"""
Cache Management Operations: All instructions in Zicbom, Zicbop and Zicboz
"""

So this is the correct behaviour and we previously have been incorrectly
not masking the address.

Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
Reported-by: Fabian Thomas <fabian.thomas@cispa.de>
Fixes: e05da09b7cfd ("target/riscv: implement Zicbom extension")
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Cc: qemu-stable <qemu-stable@nongnu.org>
Message-ID: <20240514023910.301766-1-alistair.francis@wdc.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
(cherry picked from commit c5eb8d6336741dbcb98efcc347f8265bf60bc9d1)
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
12 months agotarget/riscv: do not set mtval2 for non guest-page faults
Alexei Filippov [Fri, 3 May 2024 10:30:52 +0000 (13:30 +0300)] 
target/riscv: do not set mtval2 for non guest-page faults

Previous patch fixed the PMP priority in raise_mmu_exception() but we're still
setting mtval2 incorrectly. In riscv_cpu_tlb_fill(), after pmp check in 2 stage
translation part, mtval2 will be set in case of successes 2 stage translation but
failed pmp check.

In this case we gonna set mtval2 via env->guest_phys_fault_addr in context of
riscv_cpu_tlb_fill(), as this was a guest-page-fault, but it didn't and mtval2
should be zero, according to RISCV privileged spec sect. 9.4.4: When a guest
page-fault is taken into M-mode, mtval2 is written with either zero or guest
physical address that faulted, shifted by 2 bits. *For other traps, mtval2
is set to zero...*

Signed-off-by: Alexei Filippov <alexei.filippov@syntacore.com>
Reviewed-by: Daniel Henrique Barboza <dbarboza@ventanamicro.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-ID: <20240503103052.6819-1-alexei.filippov@syntacore.com>
Cc: qemu-stable <qemu-stable@nongnu.org>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
(cherry picked from commit 6c9a344247132ac6c3d0eb9670db45149a29c88f)
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
12 months agotarget/riscv: prioritize pmp errors in raise_mmu_exception()
Daniel Henrique Barboza [Sat, 13 Apr 2024 10:59:28 +0000 (13:59 +0300)] 
target/riscv: prioritize pmp errors in raise_mmu_exception()

raise_mmu_exception(), as is today, is prioritizing guest page faults by
checking first if virt_enabled && !first_stage, and then considering the
regular inst/load/store faults.

There's no mention in the spec about guest page fault being a higher
priority that PMP faults. In fact, privileged spec section 3.7.1 says:

"Attempting to fetch an instruction from a PMP region that does not have
execute permissions raises an instruction access-fault exception.
Attempting to execute a load or load-reserved instruction which accesses
a physical address within a PMP region without read permissions raises a
load access-fault exception. Attempting to execute a store,
store-conditional, or AMO instruction which accesses a physical address
within a PMP region without write permissions raises a store
access-fault exception."

So, in fact, we're doing it wrong - PMP faults should always be thrown,
regardless of also being a first or second stage fault.

The way riscv_cpu_tlb_fill() and get_physical_address() work is
adequate: a TRANSLATE_PMP_FAIL error is immediately reported and
reflected in the 'pmp_violation' flag. What we need is to change
raise_mmu_exception() to prioritize it.

Reported-by: Joseph Chan <jchan@ventanamicro.com>
Fixes: 82d53adfbb ("target/riscv/cpu_helper.c: Invalid exception on MMU translation stage")
Signed-off-by: Daniel Henrique Barboza <dbarboza@ventanamicro.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-ID: <20240413105929.7030-1-alexei.filippov@syntacore.com>
Cc: qemu-stable <qemu-stable@nongnu.org>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
(cherry picked from commit 68e7c86927afa240fa450578cb3a4f18926153e4)
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
12 months agotarget/riscv: rvv: Remove redudant SEW checking for vector fp narrow/widen instructions
Max Chou [Fri, 22 Mar 2024 09:25:58 +0000 (17:25 +0800)] 
target/riscv: rvv: Remove redudant SEW checking for vector fp narrow/widen instructions

If the checking functions check both the single and double width
operators at the same time, then the single width operator checking
functions (require_rvf[min]) will check whether the SEW is 8.

Signed-off-by: Max Chou <max.chou@sifive.com>
Reviewed-by: Daniel Henrique Barboza <dbarboza@ventanamicro.com>
Cc: qemu-stable <qemu-stable@nongnu.org>
Message-ID: <20240322092600.1198921-5-max.chou@sifive.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
(cherry picked from commit 93cb52b7a3ccc64e8d28813324818edae07e21d5)
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
12 months agotarget/riscv: rvv: Check single width operator for vfncvt.rod.f.f.w
Max Chou [Fri, 22 Mar 2024 09:25:57 +0000 (17:25 +0800)] 
target/riscv: rvv: Check single width operator for vfncvt.rod.f.f.w

The opfv_narrow_check needs to check the single width float operator by
require_rvf.

Signed-off-by: Max Chou <max.chou@sifive.com>
Reviewed-by: Daniel Henrique Barboza <dbarboza@ventanamicro.com>
Cc: qemu-stable <qemu-stable@nongnu.org>
Message-ID: <20240322092600.1198921-4-max.chou@sifive.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
(cherry picked from commit 692f33a3abcaae789b08623e7cbdffcd2c738c89)
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
12 months agotarget/riscv: rvv: Check single width operator for vector fp widen instructions
Max Chou [Fri, 22 Mar 2024 09:25:56 +0000 (17:25 +0800)] 
target/riscv: rvv: Check single width operator for vector fp widen instructions

The require_scale_rvf function only checks the double width operator for
the vector floating point widen instructions, so most of the widen
checking functions need to add require_rvf for single width operator.

The vfwcvt.f.x.v and vfwcvt.f.xu.v instructions convert single width
integer to double width float, so the opfxv_widen_check function doesn’t
need require_rvf for the single width operator(integer).

Signed-off-by: Max Chou <max.chou@sifive.com>
Reviewed-by: Daniel Henrique Barboza <dbarboza@ventanamicro.com>
Cc: qemu-stable <qemu-stable@nongnu.org>
Message-ID: <20240322092600.1198921-3-max.chou@sifive.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
(cherry picked from commit 7a999d4dd704aa71fe6416871ada69438b56b1e5)
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
12 months agotarget/riscv: rvv: Fix Zvfhmin checking for vfwcvt.f.f.v and vfncvt.f.f.w instructions
Max Chou [Fri, 22 Mar 2024 09:25:55 +0000 (17:25 +0800)] 
target/riscv: rvv: Fix Zvfhmin checking for vfwcvt.f.f.v and vfncvt.f.f.w instructions

According v spec 18.4, only the vfwcvt.f.f.v and vfncvt.f.f.w
instructions will be affected by Zvfhmin extension.
And the vfwcvt.f.f.v and vfncvt.f.f.w instructions only support the
conversions of

* From 1*SEW(16/32) to 2*SEW(32/64)
* From 2*SEW(32/64) to 1*SEW(16/32)

Signed-off-by: Max Chou <max.chou@sifive.com>
Reviewed-by: Daniel Henrique Barboza <dbarboza@ventanamicro.com>
Cc: qemu-stable <qemu-stable@nongnu.org>
Message-ID: <20240322092600.1198921-2-max.chou@sifive.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
(cherry picked from commit 17b713c0806e72cd8edc6c2ddd8acc5be0475df6)
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
12 months agotarget/riscv/cpu.c: fix Zvkb extension config
Yangyu Chen [Sat, 11 May 2024 11:26:48 +0000 (19:26 +0800)] 
target/riscv/cpu.c: fix Zvkb extension config

This code has a typo that writes zvkb to zvkg, causing users can't
enable zvkb through the config. This patch gets this fixed.

Signed-off-by: Yangyu Chen <cyy@cyyself.name>
Fixes: ea61ef7097d0 ("target/riscv: Move vector crypto extensions to riscv_cpu_extensions")
Reviewed-by: LIU Zhiwei <zhiwei_liu@linux.alibaba.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Max Chou <max.chou@sifive.com>
Reviewed-by:  Weiwei Li <liwei1518@gmail.com>
Message-ID: <tencent_7E34EEF0F90B9A68BF38BEE09EC6D4877C0A@qq.com>
Cc: qemu-stable <qemu-stable@nongnu.org>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
(cherry picked from commit ff33b7a9699e977a050a1014c617a89da1bf8295)
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
12 months agotarget/riscv: Fix the element agnostic function problem
Huang Tao [Mon, 25 Mar 2024 02:16:54 +0000 (10:16 +0800)] 
target/riscv: Fix the element agnostic function problem

In RVV and vcrypto instructions, the masked and tail elements are set to 1s
using vext_set_elems_1s function if the vma/vta bit is set. It is the element
agnostic policy.

However, this function can't deal the big endian situation. This patch fixes
the problem by adding handling of such case.

Signed-off-by: Huang Tao <eric.huang@linux.alibaba.com>
Suggested-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: LIU Zhiwei <zhiwei_liu@linux.alibaba.com>
Cc: qemu-stable <qemu-stable@nongnu.org>
Message-ID: <20240325021654.6594-1-eric.huang@linux.alibaba.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
(cherry picked from commit 75115d880c6d396f8a2d56aab8c12236d85a90e0)
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
12 months agotarget/riscv/kvm: tolerate KVM disable ext errors
Daniel Henrique Barboza [Mon, 22 Apr 2024 17:14:25 +0000 (14:14 -0300)] 
target/riscv/kvm: tolerate KVM disable ext errors

Running a KVM guest using a 6.9-rc3 kernel, in a 6.8 host that has zkr
enabled, will fail with a kernel oops SIGILL right at the start. The
reason is that we can't expose zkr without implementing the SEED CSR.
Disabling zkr in the guest would be a workaround, but if the KVM doesn't
allow it we'll error out and never boot.

In hindsight this is too strict. If we keep proceeding, despite not
disabling the extension in the KVM vcpu, we'll not add the extension in
the riscv,isa. The guest kernel will be unaware of the extension, i.e.
it doesn't matter if the KVM vcpu has it enabled underneath or not. So
it's ok to keep booting in this case.

Change our current logic to not error out if we fail to disable an
extension in kvm_set_one_reg(), but show a warning and keep booting. It
is important to throw a warning because we must make the user aware that
the extension is still available in the vcpu, meaning that an
ill-behaved guest can ignore the riscv,isa settings and  use the
extension.

The case we're handling happens with an EINVAL error code. If we fail to
disable the extension in KVM for any other reason, error out.

We'll also keep erroring out when we fail to enable an extension in KVM,
since adding the extension in riscv,isa at this point will cause a guest
malfunction because the extension isn't enabled in the vcpu.

Suggested-by: Andrew Jones <ajones@ventanamicro.com>
Signed-off-by: Daniel Henrique Barboza <dbarboza@ventanamicro.com>
Reviewed-by: Andrew Jones <ajones@ventanamicro.com>
Cc: qemu-stable <qemu-stable@nongnu.org>
Message-ID: <20240422171425.333037-2-dbarboza@ventanamicro.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
(cherry picked from commit 1215d45b2aa97512a2867e401aa59f3d0c23cb23)
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
12 months agotarget/riscv/kvm: Fix exposure of Zkr
Andrew Jones [Mon, 22 Apr 2024 13:46:06 +0000 (15:46 +0200)] 
target/riscv/kvm: Fix exposure of Zkr

The Zkr extension may only be exposed to KVM guests if the VMM
implements the SEED CSR. Use the same implementation as TCG.

Without this patch, running with a KVM which does not forward the
SEED CSR access to QEMU will result in an ILL exception being
injected into the guest (this results in Linux guests crashing on
boot). And, when running with a KVM which does forward the access,
QEMU will crash, since QEMU doesn't know what to do with the exit.

Fixes: 3108e2f1c69d ("target/riscv/kvm: update KVM exts to Linux 6.8")
Signed-off-by: Andrew Jones <ajones@ventanamicro.com>
Reviewed-by: Daniel Henrique Barboza <dbarboza@ventanamicro.com>
Cc: qemu-stable <qemu-stable@nongnu.org>
Message-ID: <20240422134605.534207-2-ajones@ventanamicro.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
(cherry picked from commit 86997772fa807f3961e5aeed97af7738adec1b43)
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
12 months agohw/intc/riscv_aplic: APLICs should add child earlier than realize
yang.zhang [Tue, 9 Apr 2024 01:44:45 +0000 (09:44 +0800)] 
hw/intc/riscv_aplic: APLICs should add child earlier than realize

Since only root APLICs can have hw IRQ lines, aplic->parent should
be initialized first.

Fixes: e8f79343cf ("hw/intc: Add RISC-V AIA APLIC device emulation")
Reviewed-by: Daniel Henrique Barboza <dbarboza@ventanamicro.com>
Signed-off-by: yang.zhang <yang.zhang@hexintek.com>
Cc: qemu-stable <qemu-stable@nongnu.org>
Message-ID: <20240409014445.278-1-gaoshanliukou@163.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
(cherry picked from commit c76b121840c6ca79dc6305a5f4bcf17c72217d9c)
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
12 months agoiotests: test NBD+TLS+iothread
Eric Blake [Sat, 18 May 2024 02:50:15 +0000 (21:50 -0500)] 
iotests: test NBD+TLS+iothread

Prevent regressions when using NBD with TLS in the presence of
iothreads, adding coverage the fix to qio channels made in the
previous patch.

The shell function pick_unused_port() was copied from
nbdkit.git/tests/functions.sh.in, where it had all authors from Red
Hat, agreeing to the resulting relicensing from 2-clause BSD to GPLv2.

CC: qemu-stable@nongnu.org
CC: "Richard W.M. Jones" <rjones@redhat.com>
Signed-off-by: Eric Blake <eblake@redhat.com>
Message-ID: <20240531180639.1392905-6-eblake@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
(cherry picked from commit a73c99378022ebb785481e84cfe1e81097546268)
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
12 months agoqio: Inherit follow_coroutine_ctx across TLS
Eric Blake [Sat, 18 May 2024 02:50:14 +0000 (21:50 -0500)] 
qio: Inherit follow_coroutine_ctx across TLS

Since qemu 8.2, the combination of NBD + TLS + iothread crashes on an
assertion failure:

qemu-kvm: ../io/channel.c:534: void qio_channel_restart_read(void *): Assertion `qemu_get_current_aio_context() == qemu_coroutine_get_aio_context(co)' failed.

It turns out that when we removed AioContext locking, we did so by
having NBD tell its qio channels that it wanted to opt in to
qio_channel_set_follow_coroutine_ctx(); but while we opted in on the
main channel, we did not opt in on the TLS wrapper channel.
qemu-iotests has coverage of NBD+iothread and NBD+TLS, but apparently
no coverage of NBD+TLS+iothread, or we would have noticed this
regression sooner.  (I'll add that in the next patch)

But while we could manually opt in to the TLS channel in nbd/server.c
(a one-line change), it is more generic if all qio channels that wrap
other channels inherit the follow status, in the same way that they
inherit feature bits.

CC: Stefan Hajnoczi <stefanha@redhat.com>
CC: Daniel P. Berrangé <berrange@redhat.com>
CC: qemu-stable@nongnu.org
Fixes: https://issues.redhat.com/browse/RHEL-34786
Fixes: 06e0f098 ("io: follow coroutine AioContext in qio_channel_yield()", v8.2.0)
Signed-off-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Message-ID: <20240518025246.791593-5-eblake@redhat.com>
(cherry picked from commit 199e84de1c903ba5aa1f7256310bbc4a20dd930b)
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
12 months agotarget/arm: Disable SVE extensions when SVE is disabled
Marcin Juszkiewicz [Sun, 26 May 2024 20:45:51 +0000 (13:45 -0700)] 
target/arm: Disable SVE extensions when SVE is disabled

Cc: qemu-stable@nongnu.org
Resolves: https://gitlab.com/qemu-project/qemu/-/issues/2304
Reported-by: Marcin Juszkiewicz <marcin.juszkiewicz@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Marcin Juszkiewicz <marcin.juszkiewicz@linaro.org>
Message-id: 20240526204551.553282-1-richard.henderson@linaro.org
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
(cherry picked from commit daf9748ac002ec35258e5986b6257961fd04b565)
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
12 months agohw/intc/arm_gic: Fix handling of NS view of GICC_APR<n>
Andrey Shumilin [Thu, 23 May 2024 15:06:20 +0000 (16:06 +0100)] 
hw/intc/arm_gic: Fix handling of NS view of GICC_APR<n>

In gic_cpu_read() and gic_cpu_write(), we delegate the handling of
reading and writing the Non-Secure view of the GICC_APR<n> registers
to functions gic_apr_ns_view() and gic_apr_write_ns_view().
Unfortunately we got the order of the arguments wrong, swapping the
CPU number and the register number (which the compiler doesn't catch
because they're both integers).

Most guests probably didn't notice this bug because directly
accessing the APR registers is typically something only done by
firmware when it is doing state save for going into a sleep mode.

Correct the mismatched call arguments.

Found by Linux Verification Center (linuxtesting.org) with SVACE.

Cc: qemu-stable@nongnu.org
Fixes: 51fd06e0ee ("hw/intc/arm_gic: Fix handling of GICC_APR<n>, GICC_NSAPR<n> registers")
Signed-off-by: Andrey Shumilin <shum.sdl@nppct.ru>
[PMM: Rewrote commit message]
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Alex Bennée<alex.bennee@linaro.org>
(cherry picked from commit daafa78b297291fea36fb4daeed526705fa7c035)
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
12 months agohvf: arm: Fix encodings for ID_AA64PFR1_EL1 and debug System registers
Zenghui Yu [Thu, 23 May 2024 15:06:19 +0000 (16:06 +0100)] 
hvf: arm: Fix encodings for ID_AA64PFR1_EL1 and debug System registers

We wrongly encoded ID_AA64PFR1_EL1 using {3,0,0,4,2} in hvf_sreg_match[] so
we fail to get the expected ARMCPRegInfo from cp_regs hash table with the
wrong key.

Fix it with the correct encoding {3,0,0,4,1}. With that fixed, the Linux
guest can properly detect FEAT_SSBS2 on my M1 HW.

All DBG{B,W}{V,C}R_EL1 registers are also wrongly encoded with op0 == 14.
It happens to work because HVF_SYSREG(CRn, CRm, 14, op1, op2) equals to
HVF_SYSREG(CRn, CRm, 2, op1, op2), by definition. But we shouldn't rely on
it.

Cc: qemu-stable@nongnu.org
Fixes: a1477da3ddeb ("hvf: Add Apple Silicon support")
Signed-off-by: Zenghui Yu <zenghui.yu@linux.dev>
Reviewed-by: Alexander Graf <agraf@csgraf.de>
Message-id: 20240503153453.54389-1-zenghui.yu@linux.dev
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
(cherry picked from commit 19ed42e8adc87a3c739f61608b66a046bb9237e2)
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
12 months agogitlab: use 'setarch -R' to workaround tsan bug
Daniel P. Berrangé [Mon, 13 May 2024 11:15:51 +0000 (12:15 +0100)] 
gitlab: use 'setarch -R' to workaround tsan bug

The TSAN job started failing when gitlab rolled out their latest
release. The root cause is a change in the Google COS version used
on shared runners. This brings a kernel running with

 vm.mmap_rnd_bits = 31

which is incompatible with TSAN in LLVM < 18, which only supports
upto '28'. LLVM 18 can support upto '30', and failing that will
re-exec itself to turn off VA randomization.

Our LLVM is too old for now, but we can run with 'setarch -R make ..'
to turn off VA randomization ourselves.

Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Message-ID: <20240513111551.488088-4-berrange@redhat.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
(cherry picked from commit b563959b906db53fb4bcaef1351f11a51c4b9582)
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
12 months agogitlab: use $MAKE instead of 'make'
Daniel P. Berrangé [Mon, 13 May 2024 11:15:50 +0000 (12:15 +0100)] 
gitlab: use $MAKE instead of 'make'

The lcitool generated containers have '$MAKE' set to the path
of the right 'make' binary. Using the env variable makes it
possible to override the choice per job.

Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-ID: <20240513111551.488088-3-berrange@redhat.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
(cherry picked from commit c53f7a107879a2b7e719b07692a05289bf603fde)
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
12 months agodockerfiles: add 'MAKE' env variable to remaining containers
Daniel P. Berrangé [Mon, 13 May 2024 11:15:49 +0000 (12:15 +0100)] 
dockerfiles: add 'MAKE' env variable to remaining containers

All the lcitool generated containers define a "MAKE" env. It will be
convenient for later patches if all containers do this.

Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-ID: <20240513111551.488088-2-berrange@redhat.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
(cherry picked from commit bad7a2759c69417a5558f0f19d4ede58c08705e8)
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
12 months agogitlab: Update msys2-64bit runner tags
Richard Henderson [Tue, 7 May 2024 17:53:56 +0000 (10:53 -0700)] 
gitlab: Update msys2-64bit runner tags

Gitlab has deprecated and removed support for windows-1809
and shared-windows.  Update to saas-windows-medium-amd64 per

https://about.gitlab.com/blog/2024/01/22/windows-2022-support-for-gitlab-saas-runners/

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Tested-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Tested-by: Thomas Huth <thuth@redhat.com>
Message-Id: <20240507175356.281618-1-richard.henderson@linaro.org>
(cherry picked from commit 36fa7c686e9eac490002ffc439c4affaa352c17c)
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
12 months agotarget/i386: no single-step exception after MOV or POP SS
Paolo Bonzini [Sat, 25 May 2024 08:03:22 +0000 (10:03 +0200)] 
target/i386: no single-step exception after MOV or POP SS

Intel SDM 18.3.1.4 "If an occurrence of the MOV or POP instruction
loads the SS register executes with EFLAGS.TF = 1, no single-step debug
exception occurs following the MOV or POP instruction."

Cc: qemu-stable@nongnu.org
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
(cherry picked from commit f0f0136abba688a6516647a79cc91e03fad6d5d7)
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
12 months agotarget/i386: disable jmp_opt if EFLAGS.RF is 1
Paolo Bonzini [Fri, 24 May 2024 15:17:47 +0000 (17:17 +0200)] 
target/i386: disable jmp_opt if EFLAGS.RF is 1

If EFLAGS.RF is 1, special processing in gen_eob_worker() is needed and
therefore goto_tb cannot be used.

Suggested-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Cc: qemu-stable@nongnu.org
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
(cherry picked from commit 8225bff7c5db504f50e54ef66b079854635dba70)
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
12 months agohw/loongarch/virt: Fix FDT memory node address width
Jiaxun Yang [Mon, 20 May 2024 21:06:31 +0000 (22:06 +0100)] 
hw/loongarch/virt: Fix FDT memory node address width

Higher bits for memory nodes were omitted at qemu_fdt_setprop_cells.

Cc: qemu-stable@nongnu.org
Signed-off-by: Jiaxun Yang <jiaxun.yang@flygoat.com>
Reviewed-by: Song Gao <gaosong@loongson.cn>
Message-Id: <20240520-loongarch-fdt-memnode-v1-1-5ea9be93911e@flygoat.com>
Signed-off-by: Song Gao <gaosong@loongson.cn>
(cherry picked from commit 6204af704a071ea68d3af55c0502b112a7af9546)
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
12 months agohw/loongarch: Fix fdt memory node wrong 'reg'
Song Gao [Fri, 26 Apr 2024 09:15:43 +0000 (17:15 +0800)] 
hw/loongarch: Fix fdt memory node wrong 'reg'

The right fdt memory node like [1], not [2]

  [1]
        memory@0 {
                device_type = "memory";
                reg = <0x00 0x00 0x00 0x10000000>;
        };
  [2]
        memory@0 {
                device_type = "memory";
                reg = <0x02 0x00 0x02 0x10000000>;
        };

Reviewed-by: Bibo Mao <maobibo@loongson.cn>
Signed-off-by: Song Gao <gaosong@loongson.cn>
Message-Id: <20240426091551.2397867-10-gaosong@loongson.cn>
(cherry picked from commit b11f9814526b833b3a052be2559457b1affad7f5)
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
12 months agotarget/loongarch/kvm: fpu save the vreg registers high 192bit
Song Gao [Tue, 14 May 2024 11:07:52 +0000 (19:07 +0800)] 
target/loongarch/kvm: fpu save the vreg registers high 192bit

On kvm side, get_fpu/set_fpu save the vreg registers high 192bits,
but QEMU missing.

Cc: qemu-stable@nongnu.org
Signed-off-by: Song Gao <gaosong@loongson.cn>
Reviewed-by: Bibo Mao <maobibo@loongson.cn>
Message-Id: <20240514110752.989572-1-gaosong@loongson.cn>
(cherry picked from commit 07c0866103d4aa2dd83c7c3e7898843e28e3893a)
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
12 months agohw/core/machine: move compatibility flags for VirtIO-net USO to machine 8.1
Fiona Ebner [Fri, 17 May 2024 07:53:36 +0000 (09:53 +0200)] 
hw/core/machine: move compatibility flags for VirtIO-net USO to machine 8.1

Migration from an 8.2 or 9.0 binary to an 8.1 binary with machine
version 8.1 can fail with:

> kvm: Features 0x1c0010130afffa7 unsupported. Allowed features: 0x10179bfffe7
> kvm: Failed to load virtio-net:virtio
> kvm: error while loading state for instance 0x0 of device '0000:00:12.0/virtio-net'
> kvm: load of migration failed: Operation not permitted

The series

53da8b5a99 virtio-net: Add support for USO features
9da1684954 virtio-net: Add USO flags to vhost support.
f03e0cf63b tap: Add check for USO features
2ab0ec3121 tap: Add USO support to tap device.

only landed in QEMU 8.2, so the compatibility flags should be part of
machine version 8.1.

Moving the flags unfortunately breaks forward migration with machine
version 8.1 from a binary without this patch to a binary with this
patch.

Fixes: 53da8b5a99 ("virtio-net: Add support for USO features")
Signed-off-by: Fiona Ebner <f.ebner@proxmox.com>
Reviewed-by: Fabiano Rosas <farosas@suse.de>
Acked-by: Jason Wang <jasowang@redhat.com>
Reviewed-by: Peter Xu <peterx@redhat.com>
Signed-off-by: Fabiano Rosas <farosas@suse.de>
(cherry picked from commit 9710401276a0eb2fc6d467d9abea1f5e3fe2c362)
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
12 months agotarget-i386: hyper-v: Correct kvm_hv_handle_exit return value
donsheng [Tue, 21 May 2024 20:01:14 +0000 (04:01 +0800)] 
target-i386: hyper-v: Correct kvm_hv_handle_exit return value

This bug fix addresses the incorrect return value of kvm_hv_handle_exit for
KVM_EXIT_HYPERV_SYNIC, which should be EXCP_INTERRUPT.

Handling of KVM_EXIT_HYPERV_SYNIC in QEMU needs to be synchronous.
This means that async_synic_update should run in the current QEMU vCPU
thread before returning to KVM, returning EXCP_INTERRUPT to guarantee this.
Returning 0 can cause async_synic_update to run asynchronously.

One problem (kvm-unit-tests's hyperv_synic test fails with timeout error)
caused by this bug:

When a guest VM writes to the HV_X64_MSR_SCONTROL MSR to enable Hyper-V SynIC,
a VM exit is triggered and processed by the kvm_hv_handle_exit function of the
QEMU vCPU. This function then calls the async_synic_update function to set
synic->sctl_enabled to true. A true value of synic->sctl_enabled is required
before creating SINT routes using the hyperv_sint_route_new() function.

If kvm_hv_handle_exit returns 0 for KVM_EXIT_HYPERV_SYNIC, the current QEMU
vCPU thread may return to KVM and enter the guest VM before running
async_synic_update. In such case, the hyperv_synic test’s subsequent call to
synic_ctl(HV_TEST_DEV_SINT_ROUTE_CREATE, ...) immediately after writing to
HV_X64_MSR_SCONTROL can cause QEMU’s hyperv_sint_route_new() function to return
prematurely (because synic->sctl_enabled is false).

If the SINT route is not created successfully, the SINT interrupt will not be
fired, resulting in a timeout error in the hyperv_synic test.

Fixes: 267e071bd6d6 (“hyperv: make overlay pages for SynIC”)
Suggested-by: Chao Gao <chao.gao@intel.com>
Signed-off-by: Dongsheng Zhang <dongsheng.x.zhang@intel.com>
Message-ID: <20240521200114.11588-1-dongsheng.x.zhang@intel.com>
Cc: qemu-stable@nongnu.org
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
(cherry picked from commit 84d4b72854869821eb89813c195927fdd3078c12)
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
12 months agohw/pflash: fix block write start
Gerd Hoffmann [Thu, 16 May 2024 12:12:37 +0000 (14:12 +0200)] 
hw/pflash: fix block write start

Move the pflash_blk_write_start() call.  We need the offset of the
first data write, not the offset for the setup (number-of-bytes)
write.  Without this fix u-boot can do block writes to the first
flash block only.

While being at it drop a leftover FIXME.

Cc: qemu-stable@nongnu.org
Resolves: https://gitlab.com/qemu-project/qemu/-/issues/2343
Fixes: 284a7ee2e290 ("hw/pflash: implement update buffer for block writes")
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-ID: <20240516121237.534875-1-kraxel@redhat.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
(cherry picked from commit 2563be6317fa9b5e661d79581538c704ecb90a1a)
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
12 months agotcg/loongarch64: Fill out tcg_out_{ld,st} for vector regs
Richard Henderson [Fri, 10 May 2024 09:03:41 +0000 (09:03 +0000)] 
tcg/loongarch64: Fill out tcg_out_{ld,st} for vector regs

TCG register spill/fill uses tcg_out_ld/st with all types,
not necessarily going through INDEX_op_{ld,st}_vec.

Cc: qemu-stable@nongnu.org
Fixes: 16288ded944 ("tcg/loongarch64: Lower basic tcg vec ops to LSX")
Resolves: https://gitlab.com/qemu-project/qemu/-/issues/2336
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Song Gao <gaosong@loongson.cn>
Tested-by: Song Gao <gaosong@loongson.cn>
(cherry picked from commit c9290dfebfdba5c13baa5e1f10e13a1c876b0643)
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
12 months agoui/gtk: Check if fence_fd is equal to or greater than 0
Dongwon Kim [Wed, 8 May 2024 17:53:58 +0000 (10:53 -0700)] 
ui/gtk: Check if fence_fd is equal to or greater than 0

'fence_fd' needs to be validated always before being referenced
And the passing condition should include '== 0' as 0 is a valid
value for the file descriptor.

Suggested-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Cc: Philippe Mathieu-Daudé <philmd@linaro.org>
Cc: Daniel P. Berrangé <berrange@redhat.com>
Cc: Vivek Kasireddy <vivek.kasireddy@intel.com>
Signed-off-by: Dongwon Kim <dongwon.kim@intel.com>
Message-Id: <20240508175403.3399895-2-dongwon.kim@intel.com>
(cherry picked from commit e4e62514e3cc2fc9dbae44af8b80f61c730beab4)
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
12 months agoui/gtk: Fix mouse/motion event scaling issue with GTK display backend
hikalium [Sun, 12 May 2024 11:14:35 +0000 (20:14 +0900)] 
ui/gtk: Fix mouse/motion event scaling issue with GTK display backend

Remove gtk_widget_get_scale_factor() usage from the calculation of
the motion events in the GTK backend to make it work correctly on
environments that have `gtk_widget_get_scale_factor() != 1`.

This scale factor usage had been introduced in the commit f14aab420c and
at that time the window size was used for calculating the things and it
was working correctly. However, in the commit 2f31663ed4 the logic
switched to use the widget size instead of window size and because of
the change the usage of scale factor becomes invalid (since widgets use
`vc->gfx.scale_{x, y}` for scaling).

Tested on Crostini on ChromeOS (15823.51.0) with an external display.

Fixes: 2f31663ed4 ("ui/gtk: use widget size for cursor motion event")
Fixes: f14aab420c ("ui: fix incorrect pointer position on highdpi with
gtk")

Signed-off-by: hikalium <hikalium@hikalium.com>
Acked-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-Id: <20240512111435.30121-3-hikalium@hikalium.com>
(cherry picked from commit 37e91415018db3656b46cdea8f9e4d47b3ff130d)
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
12 months agoconfigure: Fix error message when C compiler is not working
Thomas Huth [Mon, 13 May 2024 11:40:10 +0000 (13:40 +0200)] 
configure: Fix error message when C compiler is not working

If you try to run the configure script on a system without a working
C compiler, you get a very misleading error message:

 ERROR: Unrecognized host OS (uname -s reports 'Linux')

Some people already opened bug tickets because of this problem:

 https://gitlab.com/qemu-project/qemu/-/issues/2057
 https://gitlab.com/qemu-project/qemu/-/issues/2288

We should rather tell the user that we were not able to use the C
compiler instead, otherwise they will have a hard time to figure
out what was going wrong.

While we're at it, let's also suppress the "unrecognized host CPU"
message in this case since it is rather misleading than helpful.

Fixes: 264b803721 ("configure: remove compiler sanity check")
Message-ID: <20240513114010.51608-1-thuth@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Thomas Huth <thuth@redhat.com>
(cherry picked from commit 371d60dfdb47dd18d163a7759968ba138089371e)
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
12 months agoconfigure: quote -D options that are passed through to meson
Paolo Bonzini [Tue, 7 May 2024 10:48:22 +0000 (12:48 +0200)] 
configure: quote -D options that are passed through to meson

Ensure that they go through unmodified, instead of removing one layer
of quoting.

-D is a pretty specialized option and most options that can have spaces
do not need it (for example, c_args is covered by --extra-cflags).
Therefore it's unlikely that this causes actual trouble.  However,
a somewhat realistic failure case would be with -Dpkg_config_path
and a pkg-config directory that contains spaces.

Cc: qemu-stable@nongnu.org
Reviewed-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
(cherry picked from commit 23b1f53c2c8990ed745acede171e49645af3d6d0)
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
12 months agotarget/i386: fix feature dependency for WAITPKG
Paolo Bonzini [Wed, 8 May 2024 09:10:54 +0000 (11:10 +0200)] 
target/i386: fix feature dependency for WAITPKG

The VMX feature bit depends on general availability of WAITPKG,
not the other way round.

Fixes: 33cc88261c3 ("target/i386: add support for VMX_SECONDARY_EXEC_ENABLE_USER_WAIT_PAUSE", 2023-08-28)
Cc: qemu-stable@nongnu.org
Reviewed-by: Zhao Liu <zhao1.liu@intel.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
(cherry picked from commit fe01af5d47d4cf7fdf90c54d43f784e5068c8d72)
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
12 months agotarget/i386: rdpkru/wrpkru are no-prefix instructions
Paolo Bonzini [Thu, 9 May 2024 13:55:47 +0000 (15:55 +0200)] 
target/i386: rdpkru/wrpkru are no-prefix instructions

Reject 0x66/0xf3/0xf2 in front of them.

Cc: qemu-stable@nongnu.org
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
(cherry picked from commit 40a3ec7b5ffde500789d016660a171057d6b467c)
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
12 months agotarget/i386: fix operand size for DATA16 REX.W POPCNT
Paolo Bonzini [Thu, 9 May 2024 10:38:10 +0000 (12:38 +0200)] 
target/i386: fix operand size for DATA16 REX.W POPCNT

According to the manual, 32-bit vs 64-bit is governed by REX.W
and REX ignores the 0x66 prefix.  This can be confirmed with this
program:

    #include <stdio.h>
    int main()
    {
       int x = 0x12340000;
       int y;
       asm("popcntl %1, %0" : "=r" (y) : "r" (x)); printf("%x\n", y);
       asm("mov $-1, %0; .byte 0x66; popcntl %1, %0" : "+r" (y) : "r" (x)); printf("%x\n", y);
       asm("mov $-1, %0; .byte 0x66; popcntq %q1, %q0" : "+r" (y) : "r" (x)); printf("%x\n", y);
    }

which prints 5/ffff0000/5 on real hardware and 5/ffff0000/ffff0000
on QEMU.

Cc: qemu-stable@nongnu.org
Reviewed-by: Zhao Liu <zhao1.liu@intel.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
(cherry picked from commit 41c685dc59bb611096f3bb6a663cfa82e4cba97b)
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
(Mjt: drop removal of mo_64_32() helper function in target/i386/tcg/translate.c
 due to missing-in-9.0 v9.0.0-542-gaef4f4affde2
 "target/i386: remove now-converted opcodes from old decoder"
 which removed other user of it)

13 months agohw/remote/vfio-user: Fix config space access byte order
Mattias Nissler [Wed, 23 Aug 2023 09:29:30 +0000 (02:29 -0700)] 
hw/remote/vfio-user: Fix config space access byte order

PCI config space is little-endian, so on a big-endian host we need to
perform byte swaps for values as they are passed to and received from
the generic PCI config space access machinery.

Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Jagannathan Raman <jag.raman@oracle.com>
Signed-off-by: Mattias Nissler <mnissler@rivosinc.com>
Message-ID: <20240507094210.300566-6-mnissler@rivosinc.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
(cherry picked from commit e6578f1f68a0e90789a841ada532c3e494c9a04c)
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
13 months agohw/loongarch/virt: Fix memory leak
Song Gao [Tue, 7 May 2024 02:22:39 +0000 (10:22 +0800)] 
hw/loongarch/virt: Fix memory leak

The char pointer 'ramName' point to a block of memory,
but never free it. Use 'g_autofree' to automatically free it.

Resolves: Coverity CID 1544773

Fixes: 0cf1478d6 ("hw/loongarch: Add numa support")
Signed-off-by: Song Gao <gaosong@loongson.cn>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-ID: <20240507022239.3113987-1-gaosong@loongson.cn>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
(cherry picked from commit 54c52ec719fb8c83bbde54cb87b58688ab27c166)
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
(Mjt: context fixup in hw/loongarch/virt.c due to missing-in-9.0
      v9.0.0-266-gd771ca1c10 "hw/loongarch: Move boot functions to boot.c")

13 months agotarget/sh4: Update DisasContextBase.insn_start
Richard Henderson [Mon, 6 May 2024 19:52:46 +0000 (12:52 -0700)] 
target/sh4: Update DisasContextBase.insn_start

Match the extra inserts of INDEX_op_insn_start, fixing
the db->num_insns != 1 assert in translator_loop.

Fixes: dcd092a0636 ("accel/tcg: Improve can_do_io management")
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
(cherry picked from commit ca51921158e3cc07520a0ef5eb33739e5852ac6e)
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
13 months agotarget/sparc: Fix FPMERGE
Richard Henderson [Thu, 2 May 2024 16:55:27 +0000 (09:55 -0700)] 
target/sparc: Fix FPMERGE

This instruction has f32 inputs, which changes the decode
of the register numbers.

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-Id: <20240502165528.244004-7-richard.henderson@linaro.org>
Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
(cherry picked from commit d3ef26afde77fbdedd5b30282134ff99d0fe5cc5)
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
13 months agotarget/sparc: Fix FMULD8*X16
Richard Henderson [Thu, 2 May 2024 16:55:26 +0000 (09:55 -0700)] 
target/sparc: Fix FMULD8*X16

Not only do these instructions have f32 inputs, they also do not
perform rounding.  Since these are relatively simple, implement
them properly inline.

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20240502165528.244004-6-richard.henderson@linaro.org>
Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
(cherry picked from commit be8998e046c2a7e434494b75cf468ffd9d536025)
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
13 months agotarget/sparc: Fix FMUL8x16A{U,L}
Richard Henderson [Thu, 2 May 2024 16:55:25 +0000 (09:55 -0700)] 
target/sparc: Fix FMUL8x16A{U,L}

These instructions have f32 inputs, which changes the decode
of the register numbers.  While we're fixing things, use a
common helper for both insns, extracting the 16-bit scalar
in tcg beforehand.

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-Id: <20240502165528.244004-5-richard.henderson@linaro.org>
Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
(cherry picked from commit a859602c746baf4892cc8ca1ce003e92411d1716)
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
13 months agotarget/sparc: Fix FMUL8x16
Richard Henderson [Thu, 2 May 2024 16:55:24 +0000 (09:55 -0700)] 
target/sparc: Fix FMUL8x16

This instruction has f32 as source1, which alters the
decoding of the register number, which means we've been
passing the wrong data for odd register numbers.

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-Id: <20240502165528.244004-4-richard.henderson@linaro.org>
Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
(cherry picked from commit 9157dccc7e71f7c94581c38f38acbef9a21bbe9a)
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
13 months agotarget/sparc: Fix FEXPAND
Richard Henderson [Thu, 2 May 2024 16:55:23 +0000 (09:55 -0700)] 
target/sparc: Fix FEXPAND

This is a 2-operand instruction, not 3-operand.
Worse, we took the source from the wrong operand.

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-Id: <20240502165528.244004-3-richard.henderson@linaro.org>
Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
(cherry picked from commit 7b616f36de0bde126e1ba6b0793ed26fc414a1ff)
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
13 months agotarget/i386: Give IRQs a chance when resetting HF_INHIBIT_IRQ_MASK
Ruihan Li [Mon, 15 Apr 2024 06:45:21 +0000 (14:45 +0800)] 
target/i386: Give IRQs a chance when resetting HF_INHIBIT_IRQ_MASK

When emulated with QEMU, interrupts will never come in the following
loop. However, if the NOP instruction is uncommented, interrupts will
fire as normal.

loop:
cli
     call do_sti
jmp loop

do_sti:
sti
# nop
ret

This behavior is different from that of a real processor. For example,
if KVM is enabled, interrupts will always fire regardless of whether the
NOP instruction is commented or not. Also, the Intel Software Developer
Manual states that after the STI instruction is executed, the interrupt
inhibit should end as soon as the next instruction (e.g., the RET
instruction if the NOP instruction is commented) is executed.

This problem is caused because the previous code may choose not to end
the TB even if the HF_INHIBIT_IRQ_MASK has just been reset (e.g., in the
case where the STI instruction is immediately followed by the RET
instruction), so that IRQs may not have a change to trigger. This commit
fixes the problem by always terminating the current TB to give IRQs a
chance to trigger when HF_INHIBIT_IRQ_MASK is reset.

Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Ruihan Li <lrh2000@pku.edu.cn>
Message-ID: <20240415064518.4951-4-lrh2000@pku.edu.cn>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
(cherry picked from commit 6a5a63f74ba5c5355b7a8468d3d814bfffe928fb)
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
13 months agoplugins: Update stale comment
Philippe Mathieu-Daudé [Wed, 24 Apr 2024 07:01:30 +0000 (09:01 +0200)] 
plugins: Update stale comment

"plugin_mask" was renamed as "event_mask" in commit c006147122
("plugins: create CPUPluginState and migrate plugin_mask").

Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20240427155714.53669-3-philmd@linaro.org>
(cherry picked from commit e096d370ad877f8573e20266f7e843084f9611d8)
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
13 months agotarget/sh4: Fix SUBV opcode
Philippe Mathieu-Daudé [Tue, 30 Apr 2024 11:10:19 +0000 (13:10 +0200)] 
target/sh4: Fix SUBV opcode

The documentation says:

  SUBV Rm, Rn        Rn - Rm -> Rn, underflow -> T

The overflow / underflow can be calculated as:

  T = ((Rn ^ Rm) & (Result ^ Rn)) >> 31

However we were using the incorrect:

  T = ((Rn ^ Rm) & (Result ^ Rm)) >> 31

Fix by using the Rn register instead of Rm.

Add tests provided by Paul Cercueil.

Cc: qemu-stable@nongnu.org
Fixes: ad8d25a11f ("target-sh4: implement addv and subv using TCG")
Reported-by: Paul Cercueil <paul@crapouillou.net>
Suggested-by: Paul Cercueil <paul@crapouillou.net>
Resolves: https://gitlab.com/qemu-project/qemu/-/issues/2318
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Yoshinori Sato <ysato@users.sourceforge.jp>
Message-Id: <20240430163125.77430-3-philmd@linaro.org>
(cherry picked from commit e88a856efd1d3c3ffa8e53da4831eff8da290808)
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
13 months agotarget/sh4: Fix ADDV opcode
Philippe Mathieu-Daudé [Tue, 30 Apr 2024 10:41:53 +0000 (12:41 +0200)] 
target/sh4: Fix ADDV opcode

The documentation says:

  ADDV Rm, Rn        Rn + Rm -> Rn, overflow -> T

But QEMU implementation was:

  ADDV Rm, Rn        Rn + Rm -> Rm, overflow -> T

Fix by filling the correct Rm register.

Add tests provided by Paul Cercueil.

Cc: qemu-stable@nongnu.org
Fixes: ad8d25a11f ("target-sh4: implement addv and subv using TCG")
Reported-by: Paul Cercueil <paul@crapouillou.net>
Resolves: https://gitlab.com/qemu-project/qemu/-/issues/2317
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Yoshinori Sato <ysato@users.sourceforge.jp>
Message-Id: <20240430163125.77430-2-philmd@linaro.org>
(cherry picked from commit c365e6b0705788866a65e7b8206bd4c5332595cd)
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
13 months agohw/arm/npcm7xx: Store derivative OTP fuse key in little endian
Philippe Mathieu-Daudé [Mon, 22 Apr 2024 12:58:12 +0000 (14:58 +0200)] 
hw/arm/npcm7xx: Store derivative OTP fuse key in little endian

Use little endian for derivative OTP fuse key.

Cc: qemu-stable@nongnu.org
Fixes: c752bb079b ("hw/nvram: NPCM7xx OTP device model")
Suggested-by: Avi Fishman <Avi.Fishman@nuvoton.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-id: 20240422125813.1403-1-philmd@linaro.org
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
(cherry picked from commit eb656a60fd93262b1e519b3162888bf261df7f68)
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
13 months agohw/dmax/xlnx_dpdma: fix handling of address_extension descriptor fields
Alexandra Diupina [Sun, 28 Apr 2024 18:11:31 +0000 (21:11 +0300)] 
hw/dmax/xlnx_dpdma: fix handling of address_extension descriptor fields

The DMA descriptor structures for this device have
a set of "address extension" fields which extend the 32
bit source addresses with an extra 16 bits to give a
48 bit address:
 https://docs.amd.com/r/en-US/ug1085-zynq-ultrascale-trm/ADDR_EXT-Field

However, we misimplemented this address extension in several ways:
 * we only extracted 12 bits of the extension fields, not 16
 * we didn't shift the extension field up far enough
 * we accidentally did the shift as 32-bit arithmetic, which
   meant that we would have an overflow instead of setting
   bits [47:32] of the resulting 64-bit address

Add a type cast and use extract64() instead of extract32()
to avoid integer overflow on addition. Fix bit fields
extraction according to documentation.

Found by Linux Verification Center (linuxtesting.org) with SVACE.

Cc: qemu-stable@nongnu.org
Fixes: d3c6369a96 ("introduce xlnx-dpdma")
Signed-off-by: Alexandra Diupina <adiupina@astralinux.ru>
Message-id: 20240428181131.23801-1-adiupina@astralinux.ru
[PMM: adjusted commit message]
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
(cherry picked from commit 4b00855f0ee2e2eee8fd2500ffef27c108be6dc3)
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
13 months agohw/ufs: Fix buffer overflow bug
Jeuk Kim [Mon, 5 Feb 2024 03:20:15 +0000 (12:20 +0900)] 
hw/ufs: Fix buffer overflow bug

It fixes the buffer overflow vulnerability in the ufs device.
The bug was detected by sanitizers.

You can reproduce it by:

cat << EOF |\
qemu-system-x86_64 \
-display none -machine accel=qtest -m 512M -M q35 -nodefaults -drive \
file=null-co://,if=none,id=disk0 -device ufs,id=ufs_bus -device \
ufs-lu,drive=disk0,bus=ufs_bus -qtest stdio
outl 0xcf8 0x80000810
outl 0xcfc 0xe0000000
outl 0xcf8 0x80000804
outw 0xcfc 0x06
write 0xe0000058 0x1 0xa7
write 0xa 0x1 0x50
EOF

Resolves: #2299
Fixes: 329f16624499 ("hw/ufs: Support for Query Transfer Requests")
Reported-by: Zheyu Ma <zheyuma97@gmail.com>
Signed-off-by: Jeuk Kim <jeuk20.kim@samsung.com>
(cherry picked from commit f2c8aeb1afefcda92054c448b21fc59cdd99db30)
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
13 months ago.gitlab-ci.d/cirrus.yml: Shorten the runtime of the macOS and FreeBSD jobs
Thomas Huth [Mon, 29 Apr 2024 10:01:13 +0000 (12:01 +0200)] 
.gitlab-ci.d/cirrus.yml: Shorten the runtime of the macOS and FreeBSD jobs

Cirrus-CI introduced limitations to the free CI minutes. To avoid that
we are consuming them too fast, let's drop the usual targets that are
not that important since they are either a subset of another target
(like i386 or ppc being a subset of x86_64 or ppc64 respectively), or
since there is still a similar target with the opposite endianness
(like xtensa/xtensael, microblaze/microblazeel etc.).

Message-ID: <20240429100113.53357-1-thuth@redhat.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
(cherry picked from commit a88a04906b966ffdcda23a5a456abe10aa8c826e)
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
13 months agotests/avocado: update sunxi kernel from armbian to 6.6.16
Peter Maydell [Mon, 15 Apr 2024 15:18:45 +0000 (16:18 +0100)] 
tests/avocado: update sunxi kernel from armbian to 6.6.16

The Linux kernel 5.10.16 binary for sunxi has been removed from
apt.armbian.com. This means that the avocado tests for these machines
will be skipped (status CANCEL) if the old binary isn't present in
the avocado cache.

Update to 6.6.16, in the same way we did in commit e384db41d8661
when we moved to 5.10.16 in 2021.

Cc: qemu-stable@nongnu.org
Resolves: https://gitlab.com/qemu-project/qemu/-/issues/2284
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Strahinja Jankovic <strahinja.p.jankovic@gmail.com>
Reviewed-by: Niek Linnenbank <nieklinnenbank@gmail.com>
Tested-by: Niek Linnenbank <nieklinnenbank@gmail.com>
Message-id: 20240415151845.1564201-1-peter.maydell@linaro.org
(cherry picked from commit dcc5c018c7e6acddf81951bcbdf1019b9ab45f56)
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
13 months agotarget/arm: Restrict translation disabled alignment check to VMSA
Richard Henderson [Mon, 22 Apr 2024 17:07:22 +0000 (10:07 -0700)] 
target/arm: Restrict translation disabled alignment check to VMSA

For cpus using PMSA, when the MPU is disabled, the default memory
type is Normal, Non-cachable. This means that it should not
have alignment restrictions enforced.

Cc: qemu-stable@nongnu.org
Fixes: 59754f85ed3 ("target/arm: Do memory type alignment check when translation disabled")
Reported-by: Clément Chigot <chigot@adacore.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Tested-by: Clément Chigot <chigot@adacore.com>
Message-id: 20240422170722.117409-1-richard.henderson@linaro.org
[PMM: trivial comment, commit message tweaks]
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
(cherry picked from commit 7b19a3554d2df22d29c75319a1dac17615d1b20e)
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
13 months agotarget/riscv/kvm: remove sneaky strerrorname_np() instance
Daniel Henrique Barboza [Wed, 24 Apr 2024 20:24:24 +0000 (17:24 -0300)] 
target/riscv/kvm: remove sneaky strerrorname_np() instance

Commit d424db2354 excluded some strerrorname_np() instances because they
break musl libc builds. Another instance happened to slip by via commit
d4ff3da8f4.

Remove it before it causes trouble again.

Fixes: d4ff3da8f4 (target/riscv/kvm: initialize 'vlenb' via get-reg-list)
Signed-off-by: Daniel Henrique Barboza <dbarboza@ventanamicro.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Michael Tokarev <mjt@tls.msk.ru>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
(cherry picked from commit e4426353175f21f54095701c704ba4c50724cb80)
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
13 months agotarget/loongarch/cpu.c: typo fix: expection
Michael Tokarev [Wed, 24 Apr 2024 20:18:56 +0000 (23:18 +0300)] 
target/loongarch/cpu.c: typo fix: expection

Fixes: 1590154ee437 ("target/loongarch: Fix qemu-system-loongarch64 assert failed with the option '-d int'")
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
(cherry picked from commit 0cbb322f70e8a87e4acbffecef5ea8f9448f3513)
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
13 months agobackends/cryptodev-builtin: Fix local_error leaks
Li Zhijian [Mon, 22 Apr 2024 08:53:12 +0000 (16:53 +0800)] 
backends/cryptodev-builtin: Fix local_error leaks

It seems that this error does not need to be propagated to the upper,
directly output the error to avoid the leaks

Closes: https://gitlab.com/qemu-project/qemu/-/issues/2283
Fixes: 2fda101de07 ("virtio-crypto: Support asynchronous mode")
Signed-off-by: Li Zhijian <lizhijian@fujitsu.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: zhenwei pi <pizhenwei@bytedance.com>
Reviewed-by: Michael Tokarev <mjt@tls.msk.ru>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
(cherry picked from commit 06479dbf3d7d245572c4b3016e5a1d923ff04d66)
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
13 months agonbd/server: Mark negotiation functions as coroutine_fn
Eric Blake [Mon, 8 Apr 2024 16:00:44 +0000 (11:00 -0500)] 
nbd/server: Mark negotiation functions as coroutine_fn

nbd_negotiate() is already marked coroutine_fn.  And given the fix in
the previous patch to have nbd_negotiate_handle_starttls not create
and wait on a g_main_loop (as that would violate coroutine
constraints), it is worth marking the rest of the related static
functions reachable only during option negotiation as also being
coroutine_fn.

Suggested-by: Vladimir Sementsov-Ogievskiy <vsementsov@yandex-team.ru>
Signed-off-by: Eric Blake <eblake@redhat.com>
Message-ID: <20240408160214.1200629-6-eblake@redhat.com>
Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@yandex-team.ru>
[eblake: drop one spurious coroutine_fn marking]
Signed-off-by: Eric Blake <eblake@redhat.com>
(cherry picked from commit 4fa333e08dd96395a99ea8dd9e4c73a29dd23344)
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
13 months agonbd/server: do not poll within a coroutine context
Zhu Yangyang [Mon, 8 Apr 2024 16:00:43 +0000 (11:00 -0500)] 
nbd/server: do not poll within a coroutine context

Coroutines are not supposed to block. Instead, they should yield.

The client performs TLS upgrade outside of an AIOContext, during
synchronous handshake; this still requires g_main_loop.  But the
server responds to TLS upgrade inside a coroutine, so a nested
g_main_loop is wrong.  Since the two callbacks no longer share more
than the setting of data.complete and data.error, it's just as easy to
use static helpers instead of trying to share a common code path.  It
is also possible to add assertions that no other code is interfering
with the eventual path to qio reaching the callback, whether or not it
required a yield or main loop.

Fixes: f95910f ("nbd: implement TLS support in the protocol negotiation")
Signed-off-by: Zhu Yangyang <zhuyangyang14@huawei.com>
[eblake: move callbacks to their use point, add assertions]
Signed-off-by: Eric Blake <eblake@redhat.com>
Message-ID: <20240408160214.1200629-5-eblake@redhat.com>
Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@yandex-team.ru>
(cherry picked from commit ae6d91a7e9b77abb029ed3fa9fad461422286942)
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
13 months agodocs: i386: pc: Update maximum CPU numbers for PC Q35
Zhao Liu [Fri, 12 Apr 2024 08:53:58 +0000 (16:53 +0800)] 
docs: i386: pc: Update maximum CPU numbers for PC Q35

Commit e4e98c7eebfa ("pc: q35: Bump max_cpus to 4096 vcpus") increases
the supported CPUs for PC Q35 machine.

Update maximum CPU numbers for PC Q35 in the document.

Signed-off-by: Zhao Liu <zhao1.liu@intel.com>
Message-ID: <20240412085358.731560-1-zhao1.liu@linux.intel.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
(cherry picked from commit 838f82468a1282f7e89dbbd6c015c8742bfdafce)
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
13 months agolinux-user: do_setsockopt: fix SOL_ALG.ALG_SET_KEY
Michael Tokarev [Sun, 31 Mar 2024 10:07:34 +0000 (13:07 +0300)] 
linux-user: do_setsockopt: fix SOL_ALG.ALG_SET_KEY

This setsockopt accepts zero-lengh optlen (current qemu implementation
does not allow this).  Also, there's no need to make a copy of the key,
it is enough to use lock_user() (which accepts zero length already).

Resolves: https://gitlab.com/qemu-project/qemu/-/issues/2197
Fixes: f31dddd2fc "linux-user: Add support for setsockopt() option SOL_ALG"
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
Message-Id: <20240331100737.2724186-2-mjt@tls.msk.ru>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
(cherry picked from commit 04f6fb897a5aeb3e356a7b889869c9962f9c16c7)
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
13 months agomigration/colo: Fix bdrv_graph_rdlock_main_loop: Assertion `!qemu_in_coroutine()...
Li Zhijian [Wed, 17 Apr 2024 02:56:34 +0000 (10:56 +0800)] 
migration/colo: Fix bdrv_graph_rdlock_main_loop: Assertion `!qemu_in_coroutine()' failed.

bdrv_activate_all() should not be called from the coroutine context, move
it to the QEMU thread colo_process_incoming_thread() with the bql_lock
protected.

The backtrace is as follows:
 #4  0x0000561af7948362 in bdrv_graph_rdlock_main_loop () at ../block/graph-lock.c:260
 #5  0x0000561af7907a68 in graph_lockable_auto_lock_mainloop (x=0x7fd29810be7b) at /patch/to/qemu/include/block/graph-lock.h:259
 #6  0x0000561af79167d1 in bdrv_activate_all (errp=0x7fd29810bed0) at ../block.c:6906
 #7  0x0000561af762b4af in colo_incoming_co () at ../migration/colo.c:935
 #8  0x0000561af7607e57 in process_incoming_migration_co (opaque=0x0) at ../migration/migration.c:793
 #9  0x0000561af7adbeeb in coroutine_trampoline (i0=-106876144, i1=22042) at ../util/coroutine-ucontext.c:175
 #10 0x00007fd2a5cf21c0 in  () at /lib64/libc.so.6

Cc: qemu-stable@nongnu.org
Cc: Fabiano Rosas <farosas@suse.de>
Closes: https://gitlab.com/qemu-project/qemu/-/issues/2277
Fixes: 2b3912f135 ("block: Mark bdrv_first_blk() and bdrv_is_root_node() GRAPH_RDLOCK")
Signed-off-by: Li Zhijian <lizhijian@fujitsu.com>
Reviewed-by: Zhang Chen <chen.zhang@intel.com>
Tested-by: Zhang Chen <chen.zhang@intel.com>
Reviewed-by: Fabiano Rosas <farosas@suse.de>
Link: https://lore.kernel.org/r/20240417025634.1014582-1-lizhijian@fujitsu.com
Signed-off-by: Peter Xu <peterx@redhat.com>
(cherry picked from commit 2cc637f1ea08d2a1b19fc5b1a30bc609f948de93)
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>