Peter Maydell [Tue, 10 Apr 2018 13:42:03 +0000 (14:42 +0100)]
hw/char/cmsdk-apb-uart.c: Correctly clear INTSTATUS bits on writes
The CMSDK APB UART INTSTATUS register bits are all write-one-to-clear.
We were getting this correct for the TXO and RXO bits (which need
special casing because their state lives in the STATE register),
but had forgotten to handle the normal bits for RX and TX which
we do store in our s->intstatus field.
Perform the W1C operation on the bits in s->intstatus too.
Fixes: https://bugs.launchpad.net/qemu/+bug/1760262 Cc: qemu-stable@nongnu.org Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 20180410134203.17552-1-peter.maydell@linaro.org
Pavel Dovgalyuk [Mon, 9 Apr 2018 09:13:20 +0000 (12:13 +0300)]
icount: fix cpu_restore_state_from_tb for non-tb-exit cases
In icount mode, instructions that access io memory spaces in the middle
of the translation block invoke TB recompilation. After recompilation,
such instructions become last in the TB and are allowed to access io
memory spaces.
When the code includes instruction like i386 'xchg eax, 0xffffd080'
which accesses APIC, QEMU goes into an infinite loop of the recompilation.
This instruction includes two memory accesses - one read and one write.
After the first access, APIC calls cpu_report_tpr_access, which restores
the CPU state to get the current eip. But cpu_restore_state_from_tb
resets the cpu->can_do_io flag which makes the second memory access invalid.
Therefore the second memory access causes a recompilation of the block.
Then these operations repeat again and again.
This patch moves resetting cpu->can_do_io flag from
cpu_restore_state_from_tb to cpu_loop_exit* functions.
It also adds a parameter for cpu_restore_state which controls restoring
icount. There is no need to restore icount when we only query CPU state
without breaking the TB. Restoring it in such cases leads to the
incorrect flow of the virtual time.
In most cases new parameter is true (icount should be recalculated).
But there are two cases in i386 and openrisc when the CPU state is only
queried without the need to break the TB. This patch fixes both of
these cases.
Signed-off-by: Pavel Dovgalyuk <Pavel.Dovgaluk@ispras.ru>
Message-Id: <20180409091320.12504.35329.stgit@pasha-VirtualBox>
[rth: Make can_do_io setting unconditional; move from cpu_exec;
make cpu_loop_exit_{noexc,restore} call cpu_loop_exit.] Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Peter Maydell [Tue, 10 Apr 2018 15:58:19 +0000 (16:58 +0100)]
Merge remote-tracking branch 'remotes/dgibson/tags/ppc-for-2.12-20180410' into staging
ppc patch queue 2018-04-10
Here's a rather late pull request with a handful of fixes for 2.12.
These have been blocked for some time, because I wasn't able to
complete my usual test set due to the SCSI problem fixed in 37c5174
"scsi-disk: Don't enlarge min_io_size to max_io_size".
Since we're in hard freeze, these are all bugfixes. Most are also
regressions, although in one case it's only a "regression" because a
longstanding bug has been exposed by a new machine type (sam460ex) in
the testcases. There are also a couple of sam460ex fixes that aren't
regressions since the board didn't exist before. On the flipside
though, they're low risk because they only touch board specific code
for a board that doesn't exist in any released version.
* remotes/dgibson/tags/ppc-for-2.12-20180410:
roms/u-boot-sam460ex: Change to qemu git mirror and update
sam460ex: Fix timer frequency and clock multipliers
tests/boot-serial: Test the sam460ex board
spapr: Initialize reserved areas list in FDT in H_CAS handler
target/ppc: Fix backwards migration of msr_mask
hw/misc/macio: Fix crash when listing device properties of macio device
target/ppc: Initialize lazy_tlb_flush correctly
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Stefan Hajnoczi [Wed, 4 Apr 2018 15:01:46 +0000 (16:01 +0100)]
qemu-iotests: update 185 output
Commit 4486e89c219c0d1b9bd8dfa0b1dd5b0d51ff2268 ("vl: introduce
vm_shutdown()") added a bdrv_drain_all() call. As a side-effect of the
drain operation the block job iterates one more time than before. The
185 output no longer matches and the test is failing now.
It may be possible to avoid the superfluous block job iteration, but
that type of patch is not suitable late in the QEMU 2.12 release cycle.
This patch simply updates the 185 output file. The new behavior is
correct, just not optimal, so make the test pass again.
Fixes: 4486e89c219c0d1b9bd8dfa0b1dd5b0d51ff2268 ("vl: introduce vm_shutdown()") Cc: Kevin Wolf <kwolf@redhat.com> Cc: QingFeng Hao <haoqf@linux.vnet.ibm.com> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com> Reviewed-by: QingFeng Hao <haoqf@linux.vnet.ibm.com> Reviewed-by: Eric Blake <eblake@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Kevin Wolf [Thu, 18 Jan 2018 20:23:52 +0000 (21:23 +0100)]
commit/stream: Reset delay_ns
Streaming and the commit block job only want to apply throttling when
they actually copied data instead of skipping it, so they made the
calculation of delay_ns conditional. However, delay_ns isn't reset when
skipping some sectors, so instead of not waiting, the old delay is
applied again.
Properly reset delay_ns where needed.
Signed-off-by: Kevin Wolf <kwolf@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com>
Kevin Wolf [Tue, 10 Apr 2018 08:40:04 +0000 (10:40 +0200)]
qemu-iotests: Remove _supported_fmt dmg
qemu-iotests doesn't support dmg, and the dmg block driver doesn't
support image creation. Two test cases declare dmg as supported, but
that's obviously wrong for both reasons. Remove the declaration.
Signed-off-by: Kevin Wolf <kwolf@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com>
iotests: blacklist bochs and cloop for 205 and 208
Blacklist these formats, as they don't support image creation, as they
say:
> ./qemu-img create -f bochs x 1m
qemu-img: x: Format driver 'bochs' does not support image creation
> ./qemu-img create -f cloop x 1m
qemu-img: x: Format driver 'cloop' does not support image creation
Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Support "generic" formats like in bash tests with their
_supported_fmt generic
The test, supporting "generic" formats will run if IMGFMT_GENERIC =
true, which is default, except for bochs and cloop. However, you can
use verify_image_format(['generic', 'bochs']), which will run for all
except cloop (for this moment).
Also, add an assert (we don't want set both arguments) and remove
duplication.
Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
hw/block/pflash_cfi02.c:245:33: runtime error: index 82 out of bounds for type 'uint8_t [82]'
Since the 'cfi_len' member is not used, remove it to keep the code safer.
Cc: qemu-stable@nongnu.org Reported-by: AddressSanitizer Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Revert "migration: Don't activate block devices if using -S"
This reverts commit 0746a92612276aee69e66dfe6782b0f882d221d5.
Discussion with kwolf suggests this is actually an API change that
we need to gate on a capability. Push to 2.13.
Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Peter Maydell [Tue, 10 Apr 2018 14:18:58 +0000 (15:18 +0100)]
Merge remote-tracking branch 'remotes/pmaydell/tags/pull-target-arm-20180410' into staging
target-arm queue:
* fpu: Fix rounding mode for floatN_to_uintM_round_to_zero
* tcg: Fix guest state corruption when running 64-bit Arm
guests on a 32-bit host (especially when using icount)
* linux-user/signal.c: Ensure AArch64 signal frame isn't too small
* cpus.c: ensure running CPU recalculates icount deadlines on timer expiry
* target/arm: Report unsupported MPU region sizes more clearly
* hw/arm/fsl-imx: Fix introspection problem with fsl-imx6 and fsl-imx7
* hw/arm/allwinner-a10: Do not use nd_table in instance_init function
* hw/sd/bcm2835_sdhost: Don't raise spurious interrupts
* hw/sd/bcm2835_sdhost: Add tracepoints
* target-arm: Check undefined opcodes for SWP in A32 decoder
* hw/arm/integratorcp: Don't do things that could be fatal in the instance_init
* hw/arm: Allow manually specified /psci node
* remotes/pmaydell/tags/pull-target-arm-20180410:
fpu: Fix rounding mode for floatN_to_uintM_round_to_zero
tcg: Introduce tcg_set_insn_start_param
linux-user/signal.c: Ensure AArch64 signal frame isn't too small
cpus.c: ensure running CPU recalculates icount deadlines on timer expiry
target/arm: Report unsupported MPU region sizes more clearly
hw/arm/fsl-imx: Fix introspection problem with fsl-imx6 and fsl-imx7
hw/arm/allwinner-a10: Do not use nd_table in instance_init function
hw/sd/bcm2835_sdhost: Don't raise spurious interrupts
hw/sd/bcm2835_sdhost: Add tracepoints
target-arm: Check undefined opcodes for SWP in A32 decoder
hw/arm/integratorcp: Don't do things that could be fatal in the instance_init
hw/arm: Allow manually specified /psci node
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
* remotes/kraxel/tags/ui-20180410-pull-request:
configure: don't warn SDL abi if disabled
configure: don't warn GTK if disabled
gtk: drop pointless code from gd_window_close
ui: fix keymap detection under Xwayland
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
The problem was that the monitor dispatcher bottom half was bound to
qemu_aio_context now, which could be polled unexpectedly in block code.
We should keep the dispatchers run in iohandler_ctx just like what we
did before the Out-Of-Band series (chardev uses qio, and qio binds
everything with iohandler_ctx).
If without this change, QMP dispatcher might be run even before reaching
main loop in block IO path, for example, in a stack like (the ARM case,
"cont" command handler run even during machine init phase):
#0 qmp_cont ()
#1 0x00000000006bd210 in qmp_marshal_cont ()
#2 0x0000000000ac05c4 in do_qmp_dispatch ()
#3 0x0000000000ac07a0 in qmp_dispatch ()
#4 0x0000000000472d60 in monitor_qmp_dispatch_one ()
#5 0x000000000047302c in monitor_qmp_bh_dispatcher ()
#6 0x0000000000acf374 in aio_bh_call ()
#7 0x0000000000acf428 in aio_bh_poll ()
#8 0x0000000000ad5110 in aio_poll ()
#9 0x0000000000a08ab8 in blk_prw ()
#10 0x0000000000a091c4 in blk_pread ()
#11 0x0000000000734f94 in pflash_cfi01_realize ()
#12 0x000000000075a3a4 in device_set_realized ()
#13 0x00000000009a26cc in property_set_bool ()
#14 0x00000000009a0a40 in object_property_set ()
#15 0x00000000009a3a08 in object_property_set_qobject ()
#16 0x00000000009a0c8c in object_property_set_bool ()
#17 0x0000000000758f94 in qdev_init_nofail ()
#18 0x000000000058e190 in create_one_flash ()
#19 0x000000000058e2f4 in create_flash ()
#20 0x00000000005902f0 in machvirt_init ()
#21 0x00000000007635cc in machine_run_board_init ()
#22 0x00000000006b135c in main ()
Actually the problem is more severe than that. After we switched to the
qemu AIO handler it means the monitor dispatcher code can even be called
with nested aio_poll(), then it can be an explicit aio_poll() inside
another main loop aio_poll() which could be racy too; breaking code
like TPM and 9p that use nested event loops.
Switch to use the iohandler_ctx for monitor dispatchers.
My sincere thanks to Eric Auger who offered great help during both
debugging and verifying the problem. The ARM test was carried out by
applying this patch upon QEMU 2.12.0-rc0 and problem is gone after the
patch.
A quick test of mine shows that after this patch applied we can pass all
raw iotests even with OOB on by default.
CC: Eric Blake <eblake@redhat.com> CC: Markus Armbruster <armbru@redhat.com> CC: Stefan Hajnoczi <stefanha@redhat.com> CC: Fam Zheng <famz@redhat.com> Reported-by: Eric Auger <eric.auger@redhat.com> Tested-by: Eric Auger <eric.auger@redhat.com> Signed-off-by: Peter Xu <peterx@redhat.com>
Message-Id: <20180410044942.17059-1-peterx@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com> Signed-off-by: Eric Blake <eblake@redhat.com>
Peter Xu [Mon, 9 Apr 2018 08:39:56 +0000 (16:39 +0800)]
iothread: workaround glib bug which hangs qmp-test
Free the AIO context earlier than the GMainContext (if we have) to
workaround a glib2 bug that GSource context pointer is not cleared even
if the context has already been destroyed (while it should).
The patch itself only changed the order to destroy the objects, no
functional change at all. Without this workaround, we can encounter
qmp-test hang with oob (and possibly any other use case when iothread is
used with GMainContexts):
#0 0x00007f35ffe45334 in __lll_lock_wait () from /lib64/libpthread.so.0
#1 0x00007f35ffe405d8 in _L_lock_854 () from /lib64/libpthread.so.0
#2 0x00007f35ffe404a7 in pthread_mutex_lock () from /lib64/libpthread.so.0
#3 0x00007f35fc5b9c9d in g_source_unref_internal (source=0x24f0600, context=0x7f35f0000960, have_lock=0) at gmain.c:1685
#4 0x0000000000aa6672 in aio_context_unref (ctx=0x24f0600) at /root/qemu/util/async.c:497
#5 0x000000000065851c in iothread_instance_finalize (obj=0x24f0380) at /root/qemu/iothread.c:129
#6 0x0000000000962d79 in object_deinit (obj=0x24f0380, type=0x242e960) at /root/qemu/qom/object.c:462
#7 0x0000000000962e0d in object_finalize (data=0x24f0380) at /root/qemu/qom/object.c:476
#8 0x0000000000964146 in object_unref (obj=0x24f0380) at /root/qemu/qom/object.c:924
#9 0x0000000000965880 in object_finalize_child_property (obj=0x24ec640, name=0x24efca0 "mon_iothread", opaque=0x24f0380) at /root/qemu/qom/object.c:1436
#10 0x0000000000962c33 in object_property_del_child (obj=0x24ec640, child=0x24f0380, errp=0x0) at /root/qemu/qom/object.c:436
#11 0x0000000000962d26 in object_unparent (obj=0x24f0380) at /root/qemu/qom/object.c:455
#12 0x0000000000658f00 in iothread_destroy (iothread=0x24f0380) at /root/qemu/iothread.c:365
#13 0x00000000004c67a8 in monitor_cleanup () at /root/qemu/monitor.c:4663
#14 0x0000000000669e27 in main (argc=16, argv=0x7ffc8b1ae2f8, envp=0x7ffc8b1ae380) at /root/qemu/vl.c:4749
The glib2 bug is fixed in commit 26056558b ("gmain: allow
g_source_get_context() on destroyed sources", 2012-07-30), so the first
good version is glib2 2.33.10. But we still support building with
glib as old as 2.28, so we need the workaround.
Let's make sure we destroy the GSources first before its owner context
until we drop support for glib older than 2.33.10.
Signed-off-by: Peter Xu <peterx@redhat.com>
Message-Id: <20180409083956.1780-1-peterx@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com> Signed-off-by: Eric Blake <eblake@redhat.com>
Peter Xu [Sun, 8 Apr 2018 03:05:42 +0000 (11:05 +0800)]
iotests: fix wait_until_completed()
If there are more than one events, wait_until_completed() might return
the 2nd event even if the 1st event is JOB_COMPLETED, since the for loop
will continue to run even if completed is set to True.
It never happened before, but it can be triggered when OOB is enabled
due to the RESUME startup message. Fix that up.
Signed-off-by: Peter Xu <peterx@redhat.com>
Message-Id: <20180408030542.17855-1-peterx@redhat.com> Reviewed-by: Fam Zheng <famz@redhat.com> Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com> Signed-off-by: Eric Blake <eblake@redhat.com>
fpu: Fix rounding mode for floatN_to_uintM_round_to_zero
We incorrectly passed in the current rounding mode
instead of float_round_to_zero.
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20180410055912.934-1-richard.henderson@linaro.org Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Peter Maydell [Tue, 10 Apr 2018 12:02:25 +0000 (13:02 +0100)]
linux-user/signal.c: Ensure AArch64 signal frame isn't too small
The AArch64 signal frame design was extended for SVE in commit 8c5931de0ac77388096d79ceb, so that instead of having a fixed setup we
now add various records to the frame, with some of them possibly
overflowing into an extra space outside the original 4K reserved
block in the target_sigcontext. However, we failed to ensure that we
always at least allocate the 4K reserved block. This is ABI, and
some userspace programs rely on it. In particular the dash shell
would segfault if the frame wasn't as big enough.
(Compare the kernel's sigframe_size() function in
arch/arm64/kernel/signal.c.)
Reported-by: Richard Henwood <richard.henwood@arm.com> Reviewed-by: Laurent Vivier <laurent@vivier.eu> Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20180409140714.26841-1-peter.maydell@linaro.org Fixes: https://bugs.launchpad.net/bugs/1761535 Fixes: 8c5931de0ac77388096d79ceb Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Peter Maydell [Tue, 10 Apr 2018 12:02:25 +0000 (13:02 +0100)]
cpus.c: ensure running CPU recalculates icount deadlines on timer expiry
When we run in TCG icount mode, we calculate the number of instructions
to execute using tcg_get_icount_limit(), which ensures that we stop
execution at the next timer deadline. However there is a bug where
currently we do not recalculate that limit if the guest reprograms
a timer so that the next deadline moves closer, and so we will
continue execution until the original limit and fire the timer
later than we should.
Fix this bug in qemu_timer_notify_cb(): if we are currently running
a VCPU in icount mode, we simply need to kick it out of the main
loop and back to tcg_cpu_exec(), where it will recalculate the
icount limit. If we are not currently running a VCPU, then we
retain the existing logic for waking up a halted CPU.
Cc: qemu-stable@nongnu.org Fixes: https://bugs.launchpad.net/qemu/+bug/1754038 Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Message-id: 20180406123838.21249-1-peter.maydell@linaro.org
Peter Maydell [Tue, 10 Apr 2018 12:02:25 +0000 (13:02 +0100)]
target/arm: Report unsupported MPU region sizes more clearly
Currently our PMSAv7 and ARMv7M MPU implementation cannot handle
MPU region sizes smaller than our TARGET_PAGE_SIZE. However we
report that in a slightly confusing way:
DRSR[3]: No support for MPU (sub)region alignment of 9 bits. Minimum is 10
The problem is not the alignment of the region, but its size;
tweak the error message to say so:
DRSR[3]: No support for MPU (sub)region size of 512 bytes. Minimum is 1024.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-id: 20180405172554.27401-1-peter.maydell@linaro.org
This happens because these devices are doing an exit() from their
instance_init function - which should never be done since instance_init
can be called at any time for device introspection! Fix it by moving
the deadly check into the realize() function instead.
Signed-off-by: Thomas Huth <thuth@redhat.com>
Message-id: 1522908551-14885-1-git-send-email-thuth@redhat.com Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Thomas Huth [Tue, 10 Apr 2018 12:02:25 +0000 (13:02 +0100)]
hw/arm/allwinner-a10: Do not use nd_table in instance_init function
The instance_init function of a device can be called at any time, even
if the device is not going to be used (i.e. not going to be realized).
So a instance_init function must not do things that could cause QEMU
to exit, like calling qemu_check_nic_model(&nd_table[0], ...) for example.
But this is what the instance_init function of the allwinner-a10 device
is currently doing - and this causes QEMU to quit unexpectedly when
you run the 'device-list-properties' QMP command for example:
... and QEMU quits after printing the last line (which should not happen
just because of running 'device-list-properties' here).
And with the cubieboard, this even causes QEMU to abort():
$ echo "{'execute':'qmp_capabilities'}"\
"{'execute':'device-list-properties',"\
" 'arguments':{'typename':'allwinner-a10'}}" \
| arm-softmmu/qemu-system-arm -M cubieboard,accel=qtest -qmp stdio
{"QMP": {"version": {"qemu": {"micro": 91, "minor": 11, "major": 2},
"package": "build-all"}, "capabilities": []}}
{"return": {}}
Unexpected error in error_set_from_qdev_prop_error() at hw/core/qdev-properties.c:1095:
Property 'allwinner-emac.netdev' can't take value 'hub0port0', it's in use
Aborted (core dumped)
To fix the problem we've got to move the offending code to the realize
function instead.
Signed-off-by: Thomas Huth <thuth@redhat.com>
Message-id: 1522862420-7484-1-git-send-email-thuth@redhat.com Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
The Linux bcm2835_sdhost driver doesn't work on QEMU, because our
model raises spurious data interrupts. Our function
bcm2835_sdhost_fifo_run() will flag an interrupt any time it is
called with s->datacnt == 0, even if the host hasn't actually issued
a data read or write command yet. This means that the driver gets a
spurious data interrupt as soon as it enables IRQs and then does
something else that causes us to call the fifo_run routine, like
writing to SDHCFG, and before it does the write to SDCMD to issue the
read. The driver's IRQ handler then spins forever complaining that
there's no data and the SD controller isn't in a state where there's
going to be any data:
Move the interrupt flag setting to more plausible places:
* for BUSY, raise this as soon as a BUSYWAIT command has executed
* for DATA, raise this when the FIFO has any space free (for a write)
or any data in it (for a read)
* for BLOCK, raise this when the data count is 0 and we've
actually done some reading or writing
This is pure guesswork since the documentation for this hardware is
not public, but it is sufficient to get the Linux bcm2835_sdhost
driver to work.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Tested-by: Gerd Hoffmann <kraxel@redhat.com>
Message-id: 20180319161556.16446-3-peter.maydell@linaro.org
target-arm: Check undefined opcodes for SWP in A32 decoder
Make sure we are not treating architecturally Undefined instructions
as a SWP, by verifying the opcodes as per section A8.8.229 of ARMv7-A
specification. Bits [21:20] must be zero for this to be a SWP or SWPB.
We also choose to UNDEF for the architecturally UNPREDICTABLE case of
bits [11:8] not being zero.
Signed-off-by: Onur Sahin <onursahin08@gmail.com>
[PMM: tweaked commit message] Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Thomas Huth [Tue, 10 Apr 2018 12:02:24 +0000 (13:02 +0100)]
hw/arm/integratorcp: Don't do things that could be fatal in the instance_init
An instance_init function must not fail - and might be called multiple times,
e.g. during device introspection with the 'device-list-properties' QMP
command. Since the integratorcm device ignores this rule, QEMU currently
aborts in this case (though it really should not):
Peter Maydell [Tue, 10 Apr 2018 11:49:07 +0000 (12:49 +0100)]
Merge remote-tracking branch 'remotes/jasowang/tags/net-pull-request' into staging
# gpg: Signature made Tue 10 Apr 2018 04:36:01 BST
# gpg: using RSA key EF04965B398D6211
# gpg: Good signature from "Jason Wang (Jason Wang on RedHat) <jasowang@redhat.com>"
# gpg: WARNING: This key is not certified with sufficiently trusted signatures!
# gpg: It is not certain that the signature belongs to the owner.
# Primary key fingerprint: 215D 46F4 8246 689E C77F 3562 EF04 965B 398D 6211
* remotes/jasowang/tags/net-pull-request:
e1000: Old machine types, turn new subsection off
e1000: Choose which set of props to migrate
e1000: Migrate props via a temporary structure
e1000: wire new subsection to property
e1000: Dupe offload data on reading old stream
e1000: Convert v3 fields to subsection
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Peter Xu [Tue, 10 Apr 2018 05:40:34 +0000 (13:40 +0800)]
configure: don't warn SDL abi if disabled
SDL has the same problem as GTK that we might get warnings on SDL ABI
version even if SDL is disabled. Fix that by only probing SDL if SDL is
enabled. Also this should let configure be a little bit faster since we
don't really need to probe SDL stuff when it's off.
CC: Paolo Bonzini <pbonzini@redhat.com> CC: Gerd Hoffmann <kraxel@redhat.com> CC: Peter Maydell <peter.maydell@linaro.org> CC: Daniel P. Berrange <berrange@redhat.com> CC: Fam Zheng <famz@redhat.com> CC: "Philippe Mathieu-Daudé" <f4bug@amsat.org> Signed-off-by: Peter Xu <peterx@redhat.com> Reviewed-by: Daniel P. Berrangé <berrange@redhat.com> Reviewed-by: Fam Zheng <famz@redhat.com>
Message-id: 20180410054034.20479-1-peterx@redhat.com Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Peter Xu [Mon, 9 Apr 2018 08:23:23 +0000 (16:23 +0800)]
configure: don't warn GTK if disabled
We don't need to detect GTK ABI if GTK is disabled in general.
Otherwise we could get this warning (when host is installed with GTK ABI
version 2) even when configure with "--disable-gtk":
WARNING: Use of GTK 2.0 is deprecated and will be removed in
WARNING: future releases. Please switch to using GTK 3.0
CC: Paolo Bonzini <pbonzini@redhat.com> CC: Gerd Hoffmann <kraxel@redhat.com> CC: Peter Maydell <peter.maydell@linaro.org> CC: Fam Zheng <famz@redhat.com> CC: "Philippe Mathieu-Daudé" <f4bug@amsat.org> Signed-off-by: Peter Xu <peterx@redhat.com> Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Message-id: 20180409082323.29575-1-peterx@redhat.com Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Gerd Hoffmann [Wed, 14 Mar 2018 08:04:39 +0000 (09:04 +0100)]
gtk: drop pointless code from gd_window_close
Unregistering the display change listener looks like a pointless
excercise given we'll exit in a moment. When exiting qemu via
menu/file/quit this will not happen either. Just drop the code.
Also return TRUE unconditionally. This will tell gtk to ignore the
close request, so gtk will not start destroying widgets and causing
warnings due to UI code trying to talk to widgets which are gone.
Just depend on qmp_quit() doing it's job instead.
Reported-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk> Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Message-Id: <20180314080439.4229-1-kraxel@redhat.com>
The X11 code currently detects the keymap by looking for the keycode
name property. Unfortunately due to the way Xwayland handles keyboards,
this property gets unset almost immediately after the first application
starts using Xwayland resulting in
** (qemu-system-x86_64:19644): WARNING **: Unknown X11 keycode mapping '(unnamed)'.
Please report to qemu-devel@nongnu.org
including the following information:
- Operating system
- X11 Server
- xprop -root
- xdpyinfo
Fortunately people will only see this problem if they built QEMU with
GTK2, or have told GTK3 to prefer X11 by setting the GDK_BACKEND=x11
env variable.
To workaround the problem, we add a heuristic that looks at what
scancode the XK_Page_Up keysymbol maps to, to determine if we've
likely got the X11 kbd or evdev driver.
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
Message-Id: <20180313104235.20725-1-berrange@redhat.com> Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
When we're using the subsection we migrate both
the 'props' and 'tso_props' data; when we're not using
the subsection (to migrate to 2.11 or old machine types) we've
got to choose what to migrate in the main structure.
If we're using the subsection migrate 'props' in the main structure.
If we're not using the subsection then migrate the last one
that changed, which gives behaviour similar to the old behaviour.
Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com> Signed-off-by: Jason Wang <jasowang@redhat.com>
Old QEMUs only had one set of offload data; when we only receive
one lot, dupe the received data - that should give us about the
same bug level as the old version.
Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com> Signed-off-by: Jason Wang <jasowang@redhat.com>
A bunch of new TSO fields were introduced by d62644b4 and this bumped
the VMState version; however it's easier for those trying to keep
backwards migration compatibility if these fields are added in a
subsection instead.
Move the new fields to a subsection.
Since this was added after 2.11, this change will only affect
compatbility with 2.12-rc0.
Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com> Signed-off-by: Jason Wang <jasowang@redhat.com>
Max Filippov [Thu, 5 Apr 2018 00:30:41 +0000 (17:30 -0700)]
linux-user: fix preadv/pwritev offsets
preadv/pwritev accept low and high parts of file offset in two separate
parameters. When host bitness doesn't match guest bitness these parts
must be appropriately recombined.
Introduce target_to_host_low_high that does this recombination and use
it in preadv/pwritev syscalls.
This fixes glibc testsuite test misc/tst-preadvwritev64.
Reviewed-by: Laurent Vivier <laurent@vivier.eu> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
roms/u-boot-sam460ex: Change to qemu git mirror and update
Now that we have a mirror of this repo on git.qemu.org change the
submodule to use that and update it to latest commit which fixes a
dangling symlink and removes two big binaries that are not needed.
Signed-off-by: BALATON Zoltan <balaton@eik.bme.hu> Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
sam460ex: Fix timer frequency and clock multipliers
We only emulate timer running at CPU frequency which is what most
guests expect so set the frequency to match real hardware. This also
allows setting clock multipliers which caused slowdown previously due
to wrong timer frequency.
Signed-off-by: BALATON Zoltan <balaton@eik.bme.hu> Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Thomas Huth [Wed, 14 Mar 2018 04:28:55 +0000 (05:28 +0100)]
tests/boot-serial: Test the sam460ex board
We've got a U-Boot firmware for this board in our repository, and
the firmware prints some output to the serial console, so we can
check this board in the boot-serial tester, too.
Signed-off-by: Thomas Huth <thuth@redhat.com> Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
spapr: Initialize reserved areas list in FDT in H_CAS handler
At the moment the device tree produced by the H_CAS handler has no
reserved map initialized at all which is not correct as at least one
empty record is required to be present as a marker of the end.
This does not cause problems now as the only consumer is SLOF which
does not look at the reserved map area.
However when DTC's "Improve libfdt's memory safety" changeset hits
the QEMU upstream, there will be errors reported and crashes observed.
This fixes the problem by adding an empty entry to the reserved map,
just like create_device_tree() does already.
Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru> Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
David Gibson [Tue, 20 Mar 2018 02:01:18 +0000 (13:01 +1100)]
target/ppc: Fix backwards migration of msr_mask
21b786f "PowerPC: Add TS bits into msr_mask" added the transaction states
to msr_mask for recent POWER CPUs to allow correct migration of machines
that are in certain interim transactional memory states.
This was correct, but unfortunately breaks backwards of pseries-2.7 and
earlier machine types which (stupidly) transferred the msr_mask in the
migration stream and failed if it wasn't equal on each end.
This works around the problem by masking out the new MSR bits in the
compatibility code to send the msr_mask on old machine types.
Signed-off-by: David Gibson <david@gibson.dropbear.id.au> Reviewed-by: Greg Kurz <groug@kaod.org> Tested-by: Greg Kurz <groug@kaod.org> Tested-by: Lukáš Doktor <ldoktor@redhat.com>
Thomas Huth [Mon, 19 Mar 2018 14:00:46 +0000 (15:00 +0100)]
hw/misc/macio: Fix crash when listing device properties of macio device
The macio-newworld device can currently be used to abort QEMU unexpectedly:
$ ppc-softmmu/qemu-system-ppc -S -M ref405ep,accel=qtest -qmp stdio
{"QMP": {"version": {"qemu": {"micro": 50, "minor": 11, "major": 2},
"package": "build-all"}, "capabilities": []}}
{ 'execute': 'qmp_capabilities' }
{"return": {}}
{ 'execute': 'device-list-properties',
'arguments': {'typename': 'macio-newworld'}}
Unexpected error in qemu_chr_fe_init() at chardev/char-fe.c:222:
Device 'serial0' is in use
Aborted (core dumped)
qdev properties should be set during realize(), not during instance_init(),
so move the related code there to fix this problem.
Signed-off-by: Thomas Huth <thuth@redhat.com> Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Acked-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk> Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
David Gibson [Mon, 19 Mar 2018 06:05:05 +0000 (17:05 +1100)]
target/ppc: Initialize lazy_tlb_flush correctly
ppc_tr_init_disas_context() correctly sets lazy_tlb_flush to true on
certain CPU models. However, it leaves it uninitialized, instead of
setting it to false on all others.
It wasn't caught before now because we didn't have examples in the tests
that exercised this path. However it can now be caught using clang's
undefined behaviour sanitizer and the sam460ex board.
Suggested-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: David Gibson <david@gibson.dropbear.id.au> Reviewed-by: Thomas Huth <thuth@redhat.com> Reviewed-by: Greg Kurz <groug@kaod.org>
* remotes/cohuck/tags/s390x-20180409:
s390x: load_psw() should only exchange the PSW for KVM
s390x/mmu: don't overwrite pending exception in mmu translate
vfio-ccw: fix memory leaks in vfio_ccw_realize()
pc-bios/s390: update images
s390: Do not pass inofficial IPL type to the guest
s390: Ensure IPL from SCSI works as expected
s390: Refactor IPL parameter block generation
s390x/kvm: call cpu_synchronize_state() on every kvm_arch_handle_exit()
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
* remotes/bonzini/tags/for-upstream:
Add missing bit for SSE instr in VEX decoding
maint: Add .mailmap entries for patches claiming list authorship
dump: Fix build with newer gcc
device-crash-test: Remove fixed isa-fdc entry
qemu-pr-helper: Write pidfile more often
qemu-pr-helper: Daemonize before dropping privileges
virtio-serial: fix heapover-flow
kvmclock: fix clock_is_reliable on migration from QEMU < 2.9
hw/dma/i82374: Avoid double creation of the 82374 controller
hw/scsi: support SCSI-2 passthrough without PI
scsi-disk: allow customizing the SCSI version
scsi-disk: Don't enlarge min_io_size to max_io_size
configure: Add missing configure options to help text
i386/hyperv: error out if features requested but unsupported
i386/hyperv: add hv-frequencies cpu property
target/i386: WHPX: set CPUID_EXT_HYPERVISOR bit
memfd: fix vhost-user-test on non-memfd capable host
scripts/checkpatch.pl: Bug fix
target/i386: Fix andn instruction
sys_membarrier: fix up include directives
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Peter Maydell [Mon, 9 Apr 2018 15:25:38 +0000 (16:25 +0100)]
Merge remote-tracking branch 'remotes/mst/tags/for_upstream' into staging
virtio,vhost: fixes
Add a feature flag for new protocol messages.
Misc fixes.
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
# gpg: Signature made Mon 09 Apr 2018 15:37:29 BST
# gpg: using RSA key 281F0DB8D28D5469
# gpg: Good signature from "Michael S. Tsirkin <mst@kernel.org>"
# gpg: aka "Michael S. Tsirkin <mst@redhat.com>"
# Primary key fingerprint: 0270 606B 6F3C DF3D 0B17 0970 C350 3912 AFBE 8E67
# Subkey fingerprint: 5D09 FD08 71C8 F85B 94CA 8A0D 281F 0DB8 D28D 5469
* remotes/mst/tags/for_upstream:
virtio-serial: fix heap-over-flow
vhost: Allow adjoining regions
contrib/libvhost-user: add the protocol feature used for SET/GET message
vhost-user: back SET/GET_CONFIG requests with a protocol feature
vhost-user-blk: set config ops before vhost-user init
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Eric Blake [Mon, 26 Mar 2018 18:41:47 +0000 (13:41 -0500)]
maint: Add .mailmap entries for patches claiming list authorship
The list did not author any patches, but it does rewrite the
'From:' header of messages sent from any domain with restrictive
SPF policies that would otherwise prevent the message from reaching
all list recipients. If a maintainer is not careful to undo the
list header rewrite, and the author did not include a manual
'From:' line in the body to fix the munged header, then 'git am'
happily attributes the patch to the list. Add some mailmap
entries to correct the few that have escaped our attention; while
we also work on improving the tooling to catch the problem in
the future before a merge is even made.
Also improve the comments occurring in the file, including line
length improvements.
Signed-off-by: Eric Blake <eblake@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Eric Blake [Tue, 27 Mar 2018 20:21:51 +0000 (15:21 -0500)]
dump: Fix build with newer gcc
gcc 8 on rawhide is picky enough to complain:
/home/dummy/qemu/dump.c: In function 'create_header32':
/home/dummy/qemu/dump.c:817:5: error: 'strncpy' output truncated before terminating nul copying 8 bytes from a string of the same length [-Werror=stringop-truncation]
strncpy(dh->signature, KDUMP_SIGNATURE, strlen(KDUMP_SIGNATURE));
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
But we already have SIG_LEN defined as the right length without needing
to do a strlen(), and memcpy() is better than strncpy() when we know
we do not want a trailing NUL byte.
Signed-off-by: Eric Blake <eblake@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
qemu-pr-helper: Daemonize before dropping privileges
After we've dropped privileges it might be not possible to write
pidfile. For instance, if this binary is run as root (because
user wants it to write pidfile to some privileged location)
writing pidfile fails because privileges are dropped before we
even get to that.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
linzhecheng [Wed, 28 Mar 2018 13:34:35 +0000 (21:34 +0800)]
virtio-serial: fix heapover-flow
Check device having the feature of VIRTIO_CONSOLE_F_EMERG_WRITE before
get config->emerg_wr. It is neccessary because sizeof(virtio_console_config)
is 8 byte if VirtIOSerial doesn't have the feature of
VIRTIO_CONSOLE_F_EMERG_WRITE(see virtio_serial_device_realize),
read/write emerg_wr will lead to heap-over-flow.
Signed-off-by: linzhecheng <linzhecheng@huawei.com>
Message-Id: <20180328133435.20112-1-linzhecheng@huawei.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Michael Chapman [Fri, 6 Apr 2018 05:34:06 +0000 (15:34 +1000)]
kvmclock: fix clock_is_reliable on migration from QEMU < 2.9
When migrating from a pre-2.9 QEMU, no clock_is_reliable flag is
transferred. We should assume that the source host has an unreliable
KVM_GET_CLOCK, rather than using whatever was determined locally, to
ensure that any drift from the TSC-based value calculated by the guest
is corrected.
Signed-off-by: Michael Chapman <mike@very.puzzling.org>
Message-Id: <20180406053406.774-1-mike@very.puzzling.org> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
The 40p machine type already creates the device i82374. If specified in the
command line, it will try to create it again, hence generating the error. The
function isa_bus_dma() isn't supposed to be called twice for the same bus.
Check the bus doesn't already have a DMA controller registered before creating
the device.
Fixes: https://bugs.launchpad.net/qemu/+bug/1721224 Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-Id: <20180326153441.32641-2-f4bug@amsat.org> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
QEMU SCSI code makes assumptions about how the PROTECT and BYTCHK
works in the protocol, denying support for PI (Protection
Information) in case the guest OS requests it. However, in SCSI versions 2
and older, there is no PI concept in the protocol.
This means that when dealing with such devices:
- there is no PROTECT bit in byte 5 of the standard INQUIRY response. The
whole byte is marked as "Reserved";
- there is no RDPROTECT in byte 2 of READ. We have 'Logical Unit Number'
in this field instead;
- there is no VRPROTECT in byte 2 of VERIFY. We have 'Logical Unit Number'
in this field instead. This also means that the BYTCHK bit in this case
is not related to PI.
Since QEMU does not consider these changes, a SCSI passthrough using
a SCSI-2 device will not work. It will mistake these fields with
PI information and return Illegal Request SCSI SENSE thinking
that the driver is asking for PI support.
This patch fixes it by adding a new attribute called 'scsi_version'
that is read from the standard INQUIRY response of passthrough
devices. This allows for a version verification before applying
conditions related to PI that doesn't apply for older versions.
Reported-by: Dac Nguyen <dacng@us.ibm.com> Signed-off-by: Daniel Henrique Barboza <danielhb@linux.vnet.ibm.com>
Message-Id: <20180327211451.14647-1-danielhb@linux.vnet.ibm.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Paolo Bonzini [Thu, 5 Apr 2018 16:09:51 +0000 (18:09 +0200)]
scsi-disk: allow customizing the SCSI version
We would like to have different behavior for passthrough devices
depending on the SCSI version they expose. To prepare for that,
allow the user of emulated devices to specify the desired SCSI
level, and adjust the emulation according to the property value.
The next patch will set the level for scsi-block and scsi-generic
devices.
Based on a patch by Daniel Henrique Barboza
<danielhb@linux.vnet.ibm.com>.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Fam Zheng [Tue, 27 Mar 2018 16:41:41 +0000 (00:41 +0800)]
scsi-disk: Don't enlarge min_io_size to max_io_size
Some backends report big max_io_sectors. Making min_io_size the same
value in this case will make it impossible for guest to align memory,
therefore the disk may not be usable at all.
Do not enlarge them when they are zero.
Reported-by: David Gibson <dgibson@redhat.com> Signed-off-by: Fam Zheng <famz@redhat.com>
Message-Id: <20180327164141.19075-1-famz@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Thomas Huth [Tue, 27 Mar 2018 15:09:30 +0000 (17:09 +0200)]
configure: Add missing configure options to help text
We forgot to mention --with-git, --libexecdir and --with-pkgversion
so far.
Signed-off-by: Thomas Huth <thuth@redhat.com>
Message-Id: <1522163370-18544-1-git-send-email-thuth@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Roman Kagan [Fri, 30 Mar 2018 17:02:09 +0000 (20:02 +0300)]
i386/hyperv: error out if features requested but unsupported
In order to guarantee compatibility on migration, QEMU should have
complete control over the features it announces to the guest via CPUID.
However, for a number of Hyper-V-related cpu properties, if the
corresponding feature is not supported by the underlying KVM, the
propery is silently ignored and the feature is not announced to the
guest.
Refuse to start with an error instead.
Signed-off-by: Roman Kagan <rkagan@virtuozzo.com>
Message-Id: <20180330170209.20627-3-rkagan@virtuozzo.com> Reviewed-by: Eduardo Habkost <ehabkost@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Roman Kagan [Fri, 30 Mar 2018 17:02:08 +0000 (20:02 +0300)]
i386/hyperv: add hv-frequencies cpu property
In order to guarantee compatibility on migration, QEMU should have
complete control over the features it announces to the guest via CPUID.
However, the availability of Hyper-V frequency MSRs
(HV_X64_MSR_TSC_FREQUENCY and HV_X64_MSR_APIC_FREQUENCY) depends solely
on the support for them in the underlying KVM.
Introduce "hv-frequencies" cpu property (off by default) which gives
QEMU full control over whether these MSRs are announced.
While at this, drop the redundant check of the cpu tsc frequency, and
decouple this feature from hv-time.
Signed-off-by: Roman Kagan <rkagan@virtuozzo.com> Reviewed-by: Eduardo Habkost <ehabkost@redhat.com>
Message-Id: <20180330170209.20627-2-rkagan@virtuozzo.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Implements the CPUID trap for CPUID 1 to include the
CPUID_EXT_HYPERVISOR flag in the ECX results. This was preventing some
older linux kernels from booting when trying to access MSR's that dont
make sense when virtualized.
Signed-off-by: Justin Terry (VM) <juterry@microsoft.com>
Message-Id: <20180326170658.606-1-juterry@microsoft.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
linzhecheng [Wed, 28 Mar 2018 13:34:35 +0000 (21:34 +0800)]
virtio-serial: fix heap-over-flow
Check device having the feature of VIRTIO_CONSOLE_F_EMERG_WRITE before
get config->emerg_wr. It is neccessary because sizeof(virtio_console_config)
is 8 byte if VirtIOSerial doesn't have the feature of
VIRTIO_CONSOLE_F_EMERG_WRITE(see virtio_serial_device_realize),
read/write emerg_wr will lead to heap-over-flow.
Signed-off-by: linzhecheng <linzhecheng@huawei.com> Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com> Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
My rework of section adding combines overlapping or adjoining regions,
but checks they're actually the same underlying RAM block.
Fix the case where two blocks adjoin but don't overlap; that new region
should get added (but not combined), but my previous patch was disallowing it.
Fixes: c1ece84e7c9 Reported-by: Alex Williamson <alex.williamson@redhat.com> Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com> Tested-by: Alex Williamson <alex.williamson@redhat.com> Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Changpeng Liu [Fri, 30 Mar 2018 02:46:16 +0000 (10:46 +0800)]
contrib/libvhost-user: add the protocol feature used for SET/GET message
Signed-off-by: Changpeng Liu <changpeng.liu@intel.com> Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Maxime Coquelin [Thu, 29 Mar 2018 07:52:33 +0000 (09:52 +0200)]
vhost-user: back SET/GET_CONFIG requests with a protocol feature
Without a dedicated protocol feature, QEMU cannot know whether
the backend can handle VHOST_USER_SET_CONFIG and
VHOST_USER_GET_CONFIG messages.
This patch adds a protocol feature that is only advertised by
QEMU if the device implements the config ops. Vhost user init
fails if the device support the feature but the backend doesn't.
The backend should only send VHOST_USER_SLAVE_CONFIG_CHANGE_MSG
requests if the protocol feature has been negotiated.
Signed-off-by: Maxime Coquelin <maxime.coquelin@redhat.com> Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com> Acked-by: Changpeng Liu <changpeng.liu@intel.com>
Maxime Coquelin [Thu, 29 Mar 2018 07:52:32 +0000 (09:52 +0200)]
vhost-user-blk: set config ops before vhost-user init
As soon as vhost-user init is done, the backend may send
VHOST_USER_SLAVE_CONFIG_CHANGE_MSG, so let's set the
notification callback before it.
Also, it will be used to know whether the device supports
the config feature to advertize it or not.
Signed-off-by: Maxime Coquelin <maxime.coquelin@redhat.com> Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com> Acked-by: Changpeng Liu <changpeng.liu@intel.com>
s390x: load_psw() should only exchange the PSW for KVM
Let's simplify it a bit. On some weird circumstances we would have
tried to recompute watchpoints when running under KVM. load_psw() is
called from do_restart_interrupt() during a SIGP RESTART if the target
CPU is STOPPED. Let's touch watchpoints only in the TCG case - where
they are used for PER emulation.
Signed-off-by: David Hildenbrand <david@redhat.com>
Message-Id: <20180409113019.14568-3-david@redhat.com> Acked-by: Christian Borntraeger <borntraeger@de.ibm.com> Reviewed-by: Thomas Huth <thuth@redhat.com> Signed-off-by: Cornelia Huck <cohuck@redhat.com>
Greg Kurz [Sat, 7 Apr 2018 14:43:46 +0000 (16:43 +0200)]
vfio-ccw: fix memory leaks in vfio_ccw_realize()
If the subchannel is already attached or if vfio_get_device() fails, the
code jumps to the 'out_device_err' label and doesn't free the string it
has just allocated.
The code should be reworked so that vcdev->vdev.name only gets set when
the device has been attached, and freed when it is about to be detached.
This could be achieved with the addition of a vfio_ccw_get_device()
function that would be the counterpart of vfio_put_device(). But this is
a more elaborate cleanup that should be done in a follow-up. For now,
let's just add calls to g_free() on the buggy error paths.
Signed-off-by: Greg Kurz <groug@kaod.org>
Message-Id: <152311222681.203086.8874800175539040298.stgit@bahia> Signed-off-by: Cornelia Huck <cohuck@redhat.com>
Contains the following commits:
- s390: Do not pass inofficial IPL type to the guest
For s390-netboot.img, this also contains the following commits (update
was forgotten last time):
- pc-bios/s390-ccw: Move string arrays from bootmap header to .c file
- pc-bios/s390-ccw: Increase virtio timeout to 30 seconds
s390: Do not pass inofficial IPL type to the guest
IPL over a virtio-scsi device requires special handling not
available in the real architecture. For this purpose the IPL
type 0xFF has been chosen as means of communication between
QEMU and the pc-bios. However, a guest OS could be confused
by seeing an unknown IPL type.
This change sets the IPL parameter type to 0x02 (CCW) to prevent
this. Pre-existing Linux has looked up the IPL parameters only in
the case of FCP IPL. This means that the behavior should stay
the same even if Linux checks for the IPL type unconditionally.
Signed-off-by: Viktor Mihajlovski <mihajlov@linux.vnet.ibm.com>
Message-Id: <1522940844-12336-4-git-send-email-mihajlov@linux.vnet.ibm.com> Reviewed-by: Christian Borntraeger <borntraeger@de.ibm.com> Signed-off-by: Cornelia Huck <cohuck@redhat.com>
Operating systems may request an IPL from a virtio-scsi device
by specifying an IPL parameter type of CCW. In this case QEMU
won't set up the IPLB correctly. The BIOS will still detect
it's a SCSI device to boot from, but it will now have to search
for the first LUN and attempt to boot from there.
However this may not be the original boot LUN if there's more than
one SCSI disk attached to the HBA.
With this change QEMU will detect that the request is for a
SCSI device and will rebuild the initial IPL parameter info
if it's the SCSI device used for the first boot. In consequence
the BIOS can use the boot LUN from the IPL information block.
In case a different SCSI device has been set, the BIOS will find
and use the first available LUN.
Signed-off-by: Viktor Mihajlovski <mihajlov@linux.vnet.ibm.com>
Message-Id: <1522940844-12336-3-git-send-email-mihajlov@linux.vnet.ibm.com> Reviewed-by: Farhan Ali <alifm@linux.vnet.ibm.com> Reviewed-by: Thomas Huth <thuth@redhat.com> Signed-off-by: Cornelia Huck <cohuck@redhat.com>
s390x/kvm: call cpu_synchronize_state() on every kvm_arch_handle_exit()
Manually having to use cpu_synchronize_state() is error prone. And as
Christian Borntraeger discovered, e.g. handle_diag() is currently
missing a cpu_synchronize_state(), as decode_basedisp_s() uses a
general purpose register value internally.
So let's do an overall cpu_synchronize_state(), which fixes at least the
one mentioned BUG. We will clean up the superfluous cpu_synchronize_state()
calls later.
We now also call it (although maybe not neded) for
- KVM_EXIT_S390_RESET -> s390_reipl_request()
- KVM_EXIT_DEBUG -> kvm_arch_handle_debug_exit()
- unmanagable/unimplemented intercepts
- ICPT_CPU_STOP -> do_stop_interrupt() -> cpu gets halted
- Scenarios where we inject an operation exception
- handle_stsi()
I don't think any of these are performance critical. Especially as we
have all information directly contained in kvm_run, there are no
additional IOCTLs to issue on modern kernels.
Signed-off-by: David Hildenbrand <david@redhat.com>
Message-Id: <20180406093552.13016-1-david@redhat.com> Acked-by: Christian Borntraeger <borntraeger@de.ibm.com> Signed-off-by: Cornelia Huck <cohuck@redhat.com>
* remotes/kraxel/tags/ui-20180409-pull-request:
sdl2: drop dead code
sdl2: drop QEMU_KEY_BACKSPACE special case
sdl2: enable ctrl modifier keys for text consoles
sdl2: track kbd modifier state unconditionally
ui: add ctrl modifier support to kbd_put_qcode_console()
sdl2: Remove unused epoxy include
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
memfd: fix vhost-user-test on non-memfd capable host
On RHEL7, memfd is not supported, and vhost-user-test fails:
TEST: tests/vhost-user-test... (pid=10248)
/x86_64/vhost-user/migrate:
qemu-system-x86_64: -object memory-backend-memfd,id=mem,size=2M,: failed to create memfd
FAIL
There is a qemu_memfd_check() to prevent running memfd path, but it
also checks for fallback implementation. Let's specialize
qemu_memfd_check() to check memfd only, while qemu_memfd_alloc_check()
checks for the qemu_memfd_alloc() API.
Peter Maydell [Mon, 9 Apr 2018 09:21:14 +0000 (10:21 +0100)]
Merge remote-tracking branch 'remotes/famz/tags/testing-pull-request' into staging
Testing patches
# gpg: Signature made Mon 09 Apr 2018 08:18:02 BST
# gpg: using RSA key CA35624C6A9171C6
# gpg: Good signature from "Fam Zheng <famz@redhat.com>"
# Primary key fingerprint: 5003 7CB7 9706 0F76 F021 AD56 CA35 624C 6A91 71C6
* remotes/famz/tags/testing-pull-request:
docker: fedora: test more components
docker: Inline "prep_fail" in run script
tests: Fix ubuntu.i386 image initialization
docker: dump 'config.log' if ./configure fails
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
projects / thirdparty / qemu.git / log
