Stefan Hajnoczi [Sat, 8 Mar 2025 03:31:41 +0000 (11:31 +0800)]
Merge tag 'pull-target-arm-20250307' of https://git.linaro.org/people/pmaydell/qemu-arm into staging
target-arm queue:
* hw/arm/smmu-common: Remove the repeated ttb field
* hw/gpio: npcm7xx: fixup out-of-bounds access
* tests/functional/test_arm_sx1: Check whether the serial console is working
* target/arm: Fix minor bugs in generic timer register handling
* target/arm: Implement SEL2 physical and virtual timers
* target/arm: Correct STRD, LDRD atomicity and fault behaviour
* target/arm: Make dummy debug registers RAZ, not NOP
* util/qemu-timer.c: Don't warp timer from timerlist_rearm()
* include/exec/memop.h: Expand comment for MO_ATOM_SUBALIGN
* hw/arm/smmu: Introduce smmu_configs_inv_sid_range() helper
* target/rx: Set exception vector base to 0xffffff80
* target/rx: Remove TCG_CALL_NO_WG from helpers which write env
* tag 'pull-target-arm-20250307' of https://git.linaro.org/people/pmaydell/qemu-arm: (21 commits)
target/rx: Remove TCG_CALL_NO_WG from helpers which write env
target/rx: Set exception vector base to 0xffffff80
hw/arm/smmu: Introduce smmu_configs_inv_sid_range() helper
include/exec/memop.h: Expand comment for MO_ATOM_SUBALIGN
util/qemu-timer.c: Don't warp timer from timerlist_rearm()
target/arm: Make dummy debug registers RAZ, not NOP
target/arm: Drop unused address_offset from op_addr_{rr, ri}_post()
target/arm: Correct STRD atomicity
target/arm: Correct LDRD atomicity and fault behaviour
hw/arm: enable secure EL2 timers for sbsa machine
hw/arm: enable secure EL2 timers for virt machine
target/arm: Document the architectural names of our GTIMERs
target/arm: Implement SEL2 physical and virtual timers
target/arm: Refactor handling of timer offset for direct register accesses
target/arm: Always apply CNTVOFF_EL2 for CNTV_TVAL_EL02 accesses
target/arm: Make CNTPS_* UNDEF from Secure EL1 when Secure EL2 is enabled
target/arm: Don't apply CNTVOFF_EL2 for EL2_VIRT timer
target/arm: Apply correct timer offset when calculating deadlines
tests/functional/test_arm_sx1: Check whether the serial console is working
hw/gpio: npcm7xx: fixup out-of-bounds access
...
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
* tag 'pull-request-2025-03-07' of https://gitlab.com/thuth/qemu:
s390x/pci: indicate QEMU supports relaxed translation for passthrough
s390x/pci: add support for guests that request direct mapping
MAINTAINERS: Add docs/devel/testing/functional.rst to the functional section
doc: add missing 'Asset' type in function test doc
tests/functional/test_virtio_balloon: Only use KVM for running this test
tests/functional: fix race in virtio balloon test
tests/functional: Increase the timeout of the mips64el_replay test
tests/functional/test_mips_malta: Add a network test via the pcnet NIC
tests/functional: Move the code for testing HTTP downloads to a common function
tests/functional: stop output from zstd command when uncompressing
tests/functional: drop unused 'get_tag' method
tests/functional: skip memaddr tests on 32-bit builds
tests/functional: reduce tuxrun maxmem to work on 32-bit hosts
tests/functional: set 'qemu_bin' as an object level field
tests/functional: remove unused 'bin_prefix' variable
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
# -----BEGIN PGP SIGNATURE-----
#
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# puP2LuhpvomYsdCJDnznK8+9y9b34O5jcT8kd4jZ3Bo/fCczGPMqXy0a5lXc5IEE
# 7dHqZ+ksiCptHtBhoubfJzqiNDTMpgBUA2h855CUqIFhjkhDyA==
# =rUF7
# -----END PGP SIGNATURE-----
# gpg: Signature made Fri 07 Mar 2025 10:29:14 HKT
# gpg: using RSA key B8FF1DA0D2FDCB2DA09C6C2C40A2FFF239263EDF
# gpg: Good signature from "Song Gao <m17746591750@163.com>" [unknown]
# gpg: WARNING: This key is not certified with a trusted signature!
# gpg: There is no indication that the signature belongs to the owner.
# Primary key fingerprint: B8FF 1DA0 D2FD CB2D A09C 6C2C 40A2 FFF2 3926 3EDF
* tag 'pull-loongarch-20250307' of https://gitlab.com/gaosong/qemu:
target/loongarch: check tlb_ps
target/loongarch: fix 'make check-functional' failed
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Keith Packard [Tue, 18 Feb 2025 21:21:01 +0000 (13:21 -0800)]
target/rx: Remove TCG_CALL_NO_WG from helpers which write env
Functions which modify TCG globals must not be marked TCG_CALL_NO_WG,
as that tells the optimizer that TCG global values already loaded in
machine registers are still valid, and so any changes which these
helpers make to the CPU state may be ignored.
The target/rx code chooses to put (among other things) all the PSW
bits and also ACC into globals, so the NO_WG flag on various
functions that touch the PSW or ACC is incorrect and must be removed.
This includes all the floating point helper functions, because
update_fpsw() will update PSW Z and S.
Signed-off-by: Keith Packard <keithp@keithp.com>
[PMM: Clarified commit message] Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Keith Packard [Tue, 18 Feb 2025 21:21:00 +0000 (13:21 -0800)]
target/rx: Set exception vector base to 0xffffff80
The documentation says the vector is at 0xffffff80, instead of the
previous value of 0xffffffc0. That value must have been a bug because
the standard vector values (20, 21, 23, 25, 30) were all
past the end of the array.
Signed-off-by: Keith Packard <keithp@keithp.com> Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Use a similar terminology smmu_hash_remove_by_sid_range() as the one
being used for other hash table matching functions since
smmuv3_invalidate_ste() name is not self explanatory, and introduce a
helper that invokes the g_hash_table_foreach_remove.
No functional change intended.
Signed-off-by: JianChunfu <jansef.jian@hj-micro.com> Reviewed-by: Eric Auger <eric.auger@redhat.com>
Message-id: 20250228031438.3916-1-jansef.jian@hj-micro.com Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Peter Maydell [Fri, 28 Feb 2025 10:32:22 +0000 (10:32 +0000)]
include/exec/memop.h: Expand comment for MO_ATOM_SUBALIGN
Expand the example in the comment documenting MO_ATOM_SUBALIGN,
to be clearer about the atomicity guarantees it represents.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20250228103222.1838913-1-peter.maydell@linaro.org
Peter Maydell [Mon, 10 Feb 2025 13:58:04 +0000 (13:58 +0000)]
util/qemu-timer.c: Don't warp timer from timerlist_rearm()
Currently we call icount_start_warp_timer() from timerlist_rearm().
This produces incorrect behaviour, because timerlist_rearm() is
called, for instance, when a timer callback modifies its timer. We
cannot decide here to warp the timer forwards to the next timer
deadline merely because all_cpu_threads_idle() is true, because the
timer callback we were called from (or some other callback later in
the list of callbacks being invoked) may be about to raise a CPU
interrupt and move a CPU from idle to ready.
The only valid place to choose to warp the timer forward is from the
main loop, when we know we have no outstanding IO or timer callbacks
that might be about to wake up a CPU.
For Arm guests, this bug was mostly latent until the refactoring
commit f6fc36deef6abc ("target/arm/helper: Implement
CNTHCTL_EL2.CNT[VP]MASK"), which exposed it because it refactored a
timer callback so that it happened to call timer_mod() first and
raise the interrupt second, when it had previously raised the
interrupt first and called timer_mod() afterwards.
This call seems to have originally derived from the
pre-record-and-replay icount code, which (as of e.g. commit db1a49726c3c in 2010) in this location did a call to
qemu_notify_event(), necessary to get the icount code in the vCPU
round-robin thread to stop and recalculate the icount deadline when a
timer was reprogrammed from the IO thread. In current QEMU,
everything is done on the vCPU thread when we are in icount mode, so
there's no need to try to notify another thread here.
I suspect that the other reason why this call was doing icount timer
warping is that it pre-dates commit efab87cf79077a from 2015, which
added a call to icount_start_warp_timer() to main_loop_wait(). Once
the call in timerlist_rearm() has been removed, if the timer
callbacks don't cause any CPU to be woken up then we will end up
calling icount_start_warp_timer() from main_loop_wait() when the rr
main loop code calls rr_wait_io_event().
Remove the incorrect call from timerlist_rearm().
Cc: qemu-stable@nongnu.org
Resolves: https://gitlab.com/qemu-project/qemu/-/issues/2703 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> Tested-by: Alex Bennée <alex.bennee@linaro.org>
Message-id: 20250210135804.3526943-1-peter.maydell@linaro.org
Peter Maydell [Fri, 28 Feb 2025 16:24:24 +0000 (16:24 +0000)]
target/arm: Make dummy debug registers RAZ, not NOP
In debug_helper.c we provide a few dummy versions of
debug registers:
* DBGVCR (AArch32 only): enable bits for vector-catch
debug events
* MDCCINT_EL1: interrupt enable bits for the DCC
debug communications channel
* DBGVCR32_EL2: the AArch64 accessor for the state in
DBGVCR
We implemented these only to stop Linux crashing on startup,
but we chose to implement them as ARM_CP_NOP. This worked
for Linux where it only cares about trying to write to these
registers, but is very confusing behaviour for anything that
wants to read the registers (perhaps for context state switches),
because the destination register will be left with whatever
random value it happened to have before the read.
Peter Maydell [Fri, 7 Mar 2025 10:08:22 +0000 (10:08 +0000)]
target/arm: Drop unused address_offset from op_addr_{rr, ri}_post()
All the callers of op_addr_rr_post() and op_addr_ri_post() now pass in
zero for the address_offset, so we can remove that argument.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-id: 20250227142746.1698904-4-peter.maydell@linaro.org
Peter Maydell [Fri, 7 Mar 2025 10:08:21 +0000 (10:08 +0000)]
target/arm: Correct STRD atomicity
Our STRD implementation doesn't correctly implement the requirement:
* if the address is 8-aligned the access must be a 64-bit
single-copy atomic access, not two 32-bit accesses
Rewrite the handling of STRD to use a single tcg_gen_qemu_st_i64()
of a value produced by concatenating the two 32 bit source registers.
This allows us to get the atomicity right.
As with the LDRD change, now that we don't update 'addr' in the
course of performing the store we need to adjust the offset
we pass to op_addr_ri_post() and op_addr_rr_post().
Cc: qemu-stable@nongnu.org Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20250227142746.1698904-3-peter.maydell@linaro.org
Peter Maydell [Fri, 7 Mar 2025 10:08:21 +0000 (10:08 +0000)]
target/arm: Correct LDRD atomicity and fault behaviour
Our LDRD implementation is wrong in two respects:
* if the address is 4-aligned and the load crosses a page boundary
and the second load faults and the first load was to the
base register (as in cases like "ldrd r2, r3, [r2]", then we
must not update the base register before taking the fault
* if the address is 8-aligned the access must be a 64-bit
single-copy atomic access, not two 32-bit accesses
Rewrite the handling of the loads in LDRD to use a single
tcg_gen_qemu_ld_i64() and split the result into the destination
registers. This allows us to get the atomicity requirements
right, and also implicitly means that we won't update the
base register too early for the page-crossing case.
Note that because we no longer increment 'addr' by 4 in the course of
performing the LDRD we must change the adjustment value we pass to
op_addr_ri_post() and op_addr_rr_post(): it no longer needs to
subtract 4 to get the correct value to use if doing base register
writeback.
STRD has the same problem with not getting the atomicity right;
we will deal with that in the following commit.
Cc: qemu-stable@nongnu.org Reported-by: Stu Grossman <stu.grossman@gmail.com> Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20250227142746.1698904-2-peter.maydell@linaro.org
Alex Bennée [Fri, 7 Mar 2025 10:08:21 +0000 (10:08 +0000)]
hw/arm: enable secure EL2 timers for sbsa machine
Signed-off-by: Alex Bennée <alex.bennee@linaro.org> Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 20250204125009.2281315-10-peter.maydell@linaro.org Cc: qemu-stable@nongnu.org Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Alex Bennée [Fri, 7 Mar 2025 10:08:21 +0000 (10:08 +0000)]
hw/arm: enable secure EL2 timers for virt machine
Signed-off-by: Alex Bennée <alex.bennee@linaro.org> Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 20250204125009.2281315-9-peter.maydell@linaro.org Cc: qemu-stable@nongnu.org Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Alex Bennée [Fri, 7 Mar 2025 10:08:21 +0000 (10:08 +0000)]
target/arm: Document the architectural names of our GTIMERs
As we are about to add more physical and virtual timers let's make it
clear what each timer does.
Signed-off-by: Alex Bennée <alex.bennee@linaro.org> Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 20250204125009.2281315-8-peter.maydell@linaro.org
[PMM: Add timer register name prefix to each comment] Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Alex Bennée [Fri, 7 Mar 2025 10:08:21 +0000 (10:08 +0000)]
target/arm: Implement SEL2 physical and virtual timers
When FEAT_SEL2 was implemented the SEL2 timers were missed. This
shows up when building the latest Hafnium with SPMC_AT_EL=2. The
actual implementation utilises the same logic as the rest of the
timers so all we need to do is:
- define the timers and their access functions
- conditionally add the correct system registers
- create a new accessfn as the rules are subtly different to the
existing secure timer
Fixes: e9152ee91c (target/arm: add ARMv8.4-SEL2 system registers) Signed-off-by: Alex Bennée <alex.bennee@linaro.org> Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 20250204125009.2281315-7-peter.maydell@linaro.org Cc: qemu-stable@nongnu.org Cc: Andrei Homescu <ahomescu@google.com> Cc: Arve Hjønnevåg <arve@google.com> Cc: Rémi Denis-Courmont <remi.denis.courmont@huawei.com>
[PMM: CP_ACCESS_TRAP_UNCATEGORIZED -> CP_ACCESS_UNDEFINED;
offset logic now in gt_{indirect,direct}_access_timer_offset() ] Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Peter Maydell [Fri, 7 Mar 2025 10:08:21 +0000 (10:08 +0000)]
target/arm: Refactor handling of timer offset for direct register accesses
When reading or writing the timer registers, sometimes we need to
apply one of the timer offsets. Specifically, this happens for
direct reads of the counter registers CNTPCT_EL0 and CNTVCT_EL0 (and
their self-synchronized variants CNTVCTSS_EL0 and CNTPCTSS_EL0). It
also applies for direct reads and writes of the CNT*_TVAL_EL*
registers that provide the 32-bit downcounting view of each timer.
We currently do this with duplicated code in gt_tval_read() and
gt_tval_write() and a special-case in gt_virt_cnt_read() and
gt_cnt_read(). Refactor this so that we handle it all in a single
function gt_direct_access_timer_offset(), to parallel how we handle
the offset for indirect accesses.
The call in the WFIT helper previously to gt_virt_cnt_offset() is
now to gt_direct_access_timer_offset(); this is the correct
behaviour, but it's not immediately obvious that it shouldn't be
considered an indirect access, so we add an explanatory comment.
This commit should make no behavioural changes.
(Cc to stable because the following bugfix commit will
depend on this one.)
Cc: qemu-stable@nongnu.org Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Message-id: 20250204125009.2281315-6-peter.maydell@linaro.org
Peter Maydell [Fri, 7 Mar 2025 10:08:20 +0000 (10:08 +0000)]
target/arm: Always apply CNTVOFF_EL2 for CNTV_TVAL_EL02 accesses
Currently we handle CNTV_TVAL_EL02 by calling gt_tval_read() for the
EL1 virt timer. This is almost correct, but the underlying
CNTV_TVAL_EL0 register behaves slightly differently. CNTV_TVAL_EL02
always applies the CNTVOFF_EL2 offset; CNTV_TVAL_EL0 doesn't do so if
we're at EL2 and HCR_EL2.E2H is 1.
We were getting this wrong, because we ended up in
gt_virt_cnt_offset() and did the E2H check.
Factor out the tval read/write calculation from the selection of the
offset, so that we can special case gt_virt_tval_read() and
gt_virt_tval_write() to unconditionally pass CNTVOFF_EL2.
Cc: qemu-stable@nongnu.org Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Message-id: 20250204125009.2281315-5-peter.maydell@linaro.org
Peter Maydell [Fri, 7 Mar 2025 10:08:20 +0000 (10:08 +0000)]
target/arm: Make CNTPS_* UNDEF from Secure EL1 when Secure EL2 is enabled
When we added Secure EL2 support, we missed that this needs an update
to the access code for the EL3 physical timer registers. These are
supposed to UNDEF from Secure EL1 when Secure EL2 is enabled.
(Note for stable backporting: for backports to branches where
CP_ACCESS_UNDEFINED is not defined, the old name to use instead
is CP_ACCESS_TRAP_UNCATEGORIZED.)
Cc: qemu-stable@nongnu.org Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Message-id: 20250204125009.2281315-4-peter.maydell@linaro.org
Peter Maydell [Fri, 7 Mar 2025 10:08:20 +0000 (10:08 +0000)]
target/arm: Don't apply CNTVOFF_EL2 for EL2_VIRT timer
The CNTVOFF_EL2 offset register should only be applied for accessses
to CNTVCT_EL0 and for the EL1 virtual timer (CNTV_*). We were
incorrectly applying it for the EL2 virtual timer (CNTHV_*).
Cc: qemu-stable@nongnu.org Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Message-id: 20250204125009.2281315-3-peter.maydell@linaro.org
Peter Maydell [Fri, 7 Mar 2025 10:08:19 +0000 (10:08 +0000)]
target/arm: Apply correct timer offset when calculating deadlines
When we are calculating timer deadlines, the correct definition of
whether or not to apply an offset to the physical count is described
in the Arm ARM DDI4087 rev L.a section D12.2.4.1. This is different
from when the offset should be applied for a direct read of the
counter sysreg.
We got this right for the EL1 physical timer and for the EL1 virtual
timer, but got all the rest wrong: they should be using a zero offset
always.
Factor the offset calculation out into a function that has a comment
documenting exactly which offset it is calculating and which gets the
HYP, SEC, and HYPVIRT cases right.
Cc: qemu-stable@nongnu.org Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Message-id: 20250204125009.2281315-2-peter.maydell@linaro.org
Thomas Huth [Fri, 7 Mar 2025 10:08:19 +0000 (10:08 +0000)]
tests/functional/test_arm_sx1: Check whether the serial console is working
The kernel that is used in the sx1 test prints the usual Linux log
onto the serial console, but this test currently ignores it. To
make sure that the serial device is working properly, let's check
for some strings in the output here.
While we're at it, also add the test to the corresponding section
in the MAINTAINERS file.
Signed-off-by: Thomas Huth <thuth@redhat.com> Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-id: 20250226104833.1176253-1-thuth@redhat.com Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Patrick Venture [Fri, 7 Mar 2025 10:08:19 +0000 (10:08 +0000)]
hw/gpio: npcm7xx: fixup out-of-bounds access
The reg isn't validated to be a possible register before
it's dereferenced for one case. The mmio space registered
for the gpio device is 4KiB but there aren't that many
registers in the struct.
Cc: qemu-stable@nongnu.org Fixes: 526dbbe0874 ("hw/gpio: Add GPIO model for Nuvoton NPCM7xx") Signed-off-by: Patrick Venture <venture@google.com> Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-id: 20250226024603.493148-1-venture@google.com Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Matthew Rosato [Wed, 26 Feb 2025 21:00:13 +0000 (16:00 -0500)]
s390x/pci: indicate QEMU supports relaxed translation for passthrough
Specifying this bit in the guest CLP response indicates that the guest
can optionally choose to skip translation and instead use
identity-mapped operations.
Tested-by: Niklas Schnelle <schnelle@linux.ibm.com> Reviewed-by: Niklas Schnelle <schnelle@linux.ibm.com> Signed-off-by: Matthew Rosato <mjrosato@linux.ibm.com>
Message-ID: <20250226210013.238349-3-mjrosato@linux.ibm.com> Signed-off-by: Thomas Huth <thuth@redhat.com>
Matthew Rosato [Wed, 26 Feb 2025 21:00:12 +0000 (16:00 -0500)]
s390x/pci: add support for guests that request direct mapping
When receiving a guest mpcifc(4) or mpcifc(6) instruction without the T
bit set, treat this as a request to perform direct mapping instead of
address translation. In order to facilitate this, pin the entirety of
guest memory into the host iommu.
Pinning for the direct mapping case is handled via vfio and its memory
listener. Additionally, ram discard settings are inherited from vfio:
coordinated discards (e.g. virtio-mem) are allowed while uncoordinated
discards (e.g. virtio-balloon) are disabled.
Subsequent guest DMA operations are all expected to be of the format
guest_phys+sdma, allowing them to be used as lookup into the host
iommu table.
Signed-off-by: Matthew Rosato <mjrosato@linux.ibm.com> Reviewed-by: David Hildenbrand <david@redhat.com>
Message-ID: <20250226210013.238349-2-mjrosato@linux.ibm.com> Signed-off-by: Thomas Huth <thuth@redhat.com>
Thomas Huth [Thu, 6 Mar 2025 10:51:23 +0000 (11:51 +0100)]
MAINTAINERS: Add docs/devel/testing/functional.rst to the functional section
Add an entry for docs/devel/testing/functional.rst to get notified
on patches that change this file.
Message-ID: <20250306105124.702131-1-thuth@redhat.com> Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Signed-off-by: Thomas Huth <thuth@redhat.com>
Thomas Huth [Fri, 7 Mar 2025 06:25:37 +0000 (07:25 +0100)]
tests/functional/test_virtio_balloon: Only use KVM for running this test
The virtio_balloon test is currently hanging for unknown reasons
when being run on the shared gitlab CI runners (which don't provide
KVM, thus it's running in TCG mode there). All other functional tests
that use the same asset (the Fedora 31 kernel) have already been
marked to work only with KVM in the past, so those other tests are
skipped on the shared gitlab CI runners. As long as the problem isn't
fully understood and fixed, let's do the same with the virtio_balloon
test to avoid that the CI is failing here.
Message-ID: <20250307063904.1081961-1-thuth@redhat.com> Reviewed-by: David Hildenbrand <david@redhat.com> Signed-off-by: Thomas Huth <thuth@redhat.com>
There are two race conditions in the recently added virtio balloon
test
* The /dev/vda device node is not ready
* The virtio-balloon driver has not issued the first stats refresh
To fix the former, monitor dmesg for a line about 'vda'.
To fix the latter, retry the stats query until seeing fresh data.
Adding 'quiet' to the kernel command line reduces serial output
which otherwise slows boot, making it less likely to hit the former
race too.
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
Message-ID: <20250304183340.3749797-1-berrange@redhat.com> Reviewed-by: Thomas Huth <thuth@redhat.com> Reviewed-by: David Hildenbrand <david@redhat.com>
[thuth: Break long line to avoid checkpatch error] Signed-off-by: Thomas Huth <thuth@redhat.com>
Thomas Huth [Wed, 5 Mar 2025 07:43:53 +0000 (08:43 +0100)]
tests/functional: Increase the timeout of the mips64el_replay test
We run the gitlab-CI with the untrusted tests enabled, and
the test_replay_mips64el_malta_5KEc_cpio subtest is rather slow,
so this already hit the standard 90 seconds timeout in the CI.
Increase the timeout for more headroom.
Reported-by: Stefan Hajnoczi <stefanha@redhat.com>
Message-ID: <20250305074353.52552-1-thuth@redhat.com> Reviewed-by: Daniel P. Berrangé <berrange@redhat.com> Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com> Signed-off-by: Thomas Huth <thuth@redhat.com>
tests/functional: stop output from zstd command when uncompressing
The zstd command will print incremental decompression progress to stderr
when running. Fortunately it is not on stdout as that would confuse the
TAP parsing, but we should still not have this printed. By switching
from 'check_call' to 'run' with the check=True and capture_output=True
we'll get the desired silence on success, and on failure the raised
exception will automatically include stdout/stderr data for diagnosis
purposes.
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com> Reviewed-by: Thomas Huth <thuth@redhat.com>
Message-ID: <20250228102738.3064045-8-berrange@redhat.com> Signed-off-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com> Reviewed-by: Thomas Huth <thuth@redhat.com>
Message-ID: <20250228102738.3064045-7-berrange@redhat.com> Signed-off-by: Thomas Huth <thuth@redhat.com>
tests/functional: skip memaddr tests on 32-bit builds
If the QEMU binary was built for a 32-bit ELF target we cannot run the
memory address space tests as they all require ability to address more
RAM that can be represented on 32-bit.
We can't use a decorator to skip the tests as we need setUp() to run to
pick the QEMU binary, thus we must call a method at the start of each
test to check and skip it. The functional result is effectively the
same as using a decorator, just less pretty. This code will go away when
32-bit hosts are full dropped from QEMU.
The code allows any non-ELF target since all macOS versions supported
at 64-bit only and we already dropped support for 32-bit Windows.
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
Message-ID: <20250228102738.3064045-6-berrange@redhat.com>
[thuth: Add missing byteorder='little' to from_bytes()] Signed-off-by: Thomas Huth <thuth@redhat.com>
Song Gao [Wed, 5 Mar 2025 06:33:11 +0000 (14:33 +0800)]
target/loongarch: check tlb_ps
For LoongArch th min tlb_ps is 12(4KB), for TLB code,
the tlb_ps may be 0,this may case UndefinedBehavior
Add a check-tlb_ps fuction to check tlb_ps,
to make sure the tlb_ps is avalablie. we check tlb_ps
when get the tlb_ps from tlb->misc or CSR bits.
1. cpu reset
set CSR_PWCL.PTBASE and CSR_STLBPS.PS bits a default value
from CSR_PRCFG2;
2. tlb instructions.
some tlb instructions get the tlb_ps from tlb->misc but the
value may has been initialized to 0. we need just check the tlb_ps
skip the function and write a guest log.
3. csrwr instructions.
to make sure CSR_PWCL.PTBASE and CSR_STLBPS.PS bits are avalable,
cheke theses bits and set a default value from CSR_PRCFG2.
Signed-off-by: Song Gao <gaosong@loongson.cn> Reviewed-by: Bibo Mao <maobibo@loongson.cn>
Message-Id: <20250305063311.830674-3-gaosong@loongson.cn>
some tlb instructions get the tlb_ps from tlb->misc but the
value may has been initialized to 0,just check the tlb_ps skip
the function and write a log.
Signed-off-by: Song Gao <gaosong@loongson.cn> Reviewed-by: Bibo Mao <maobibo@loongson.cn>
Message-Id: <20250305063311.830674-2-gaosong@loongson.cn>
Stefan Hajnoczi [Thu, 6 Mar 2025 23:39:49 +0000 (07:39 +0800)]
Merge tag 'accel-cpus-20250306' of https://github.com/philmd/qemu into staging
Generic CPUs / accelerators patch queue
- Merge "qemu/clang-tsa.h" within "qemu/compiler.h"
- Various cleanups around accelerators initialization code
(better user/system split)
- Various trivial cleanups in accel/tcg/,
Guard few TCG calls with tcg_enabled()
- Explicit disassemble_info endianness
- Improve dual-endianness support for MicroBlaze
* tag 'accel-cpus-20250306' of https://github.com/philmd/qemu: (54 commits)
include: Poison TARGET_PHYS_ADDR_SPACE_BITS definition
system: Open-code qemu_init_arch_modules() using target_name()
target/i386: Mark WHPX APIC region as little-endian
target/alpha: Do not mix exception flags and FPCR bits
target/riscv: Convert misa_mxl_max using GLib macros
target/riscv: Declare RISCVCPUClass::misa_mxl_max as RISCVMXL
target/xtensa: Finalize config in xtensa_register_core()
target/sparc: Constify SPARCCPUClass::cpu_def
target/i386: Constify X86CPUModel uses
disas: Remove target_words_bigendian() call in initialize_debug_target()
target/xtensa: Set disassemble_info::endian value in disas_set_info()
target/sh4: Set disassemble_info::endian value in disas_set_info()
target/riscv: Set disassemble_info::endian value in disas_set_info()
target/ppc: Set disassemble_info::endian value in disas_set_info()
target/mips: Set disassemble_info::endian value in disas_set_info()
target/microblaze: Set disassemble_info::endian value in disas_set_info
target/arm: Set disassemble_info::endian value in disas_set_info()
target: Set disassemble_info::endian value for big-endian targets
target: Set disassemble_info::endian value for little-endian targets
target/mips: Fix possible MSA int overflow
...
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
* tag 'pull-vfio-20250306' of https://github.com/legoater/qemu: (42 commits)
hw/core/machine: Add compat for x-migration-multifd-transfer VFIO property
vfio/migration: Make x-migration-multifd-transfer VFIO property mutable
vfio/migration: Add x-migration-multifd-transfer VFIO property
vfio/migration: Multifd device state transfer support - send side
vfio/migration: Multifd device state transfer support - config loading support
migration/qemu-file: Define g_autoptr() cleanup function for QEMUFile
vfio/migration: Multifd device state transfer support - load thread
vfio/migration: Multifd device state transfer support - received buffers queuing
vfio/migration: Setup and cleanup multifd transfer in these general methods
vfio/migration: Multifd setup/cleanup functions and associated VFIOMultifd
vfio/migration: Multifd device state transfer - add support checking function
vfio/migration: Multifd device state transfer support - basic types
vfio/migration: Move migration channel flags to vfio-common.h header file
vfio/migration: Add vfio_add_bytes_transferred()
vfio/migration: Convert bytes_transferred counter to atomic
vfio/migration: Add load_device_config_state_start trace event
migration: Add save_live_complete_precopy_thread handler
migration/multifd: Add multifd_device_state_supported()
migration/multifd: Make MultiFDSendData a struct
migration/multifd: Device state transfer support - send side
...
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
* tag 'pull-qapi-2025-03-06' of https://repo.or.cz/qemu/armbru:
docs/devel/qapi-code-gen: Discourage use of 'prefix'
qdev: Improve a few more PropertyInfo @description members
qdev: Improve PropertyInfo member @description for enum properties
qdev: Change values of PropertyInfo member @type to be QAPI types
qdev: Rename PropertyInfo member @name to @type
qdev: Change qdev_prop_pci_devfn member @name from "int32" to "str"
qdev: Delete unused qdev_prop_enum
qapi/introspect: Use @dataclass to simplify
qapi: Eliminate OrderedDict
docs/about/build-platforms: Correct minimum supported Python version
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Stefan Hajnoczi [Thu, 6 Mar 2025 23:37:39 +0000 (07:37 +0800)]
Merge tag 'pull-nbd-2025-03-05' of https://repo.or.cz/qemu/ericb into staging
NBD patches for 2025-03-05
- Several iotest fixes
- Refactor QMP for NbdServerOptions for less repetition
- Avoid a hang in 'qemu-nbd --fork' when simple trace backend is enabled
* tag 'pull-nbd-2025-03-05' of https://repo.or.cz/qemu/ericb:
nbd: Defer trace init until after daemonization
qapi: merge common parts of NbdServerOptions and nbd-server-start data
iotests: Stop NBD server in test 162 before starting the next one
iotest: Unbreak 302 with python 3.13
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Ensure common code never use this target specific definition.
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20250305153929.43687-4-philmd@linaro.org>
system: Open-code qemu_init_arch_modules() using target_name()
Mostly revert commit c80cafa0c73 ("system: Add qemu_init_arch_modules")
but using target_name() instead of the target specific 'TARGET_NAME'
definition.
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20250305005225.95051-3-philmd@linaro.org>
target/i386: Mark WHPX APIC region as little-endian
This device is only used by the x86 targets, which are only
built as little-endian. Therefore the DEVICE_NATIVE_ENDIAN
definition expand to DEVICE_LITTLE_ENDIAN (besides, the
DEVICE_BIG_ENDIAN case isn't tested). Simplify directly
using DEVICE_LITTLE_ENDIAN.
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20250212113938.38692-6-philmd@linaro.org>
target/alpha: Do not mix exception flags and FPCR bits
get_float_exception_flags() returns exception flags,
which are distinct from the FPCR bits used as error code.
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20250211162604.83446-1-philmd@linaro.org>
target/riscv: Convert misa_mxl_max using GLib macros
Use GLib conversion macros to pass misa_mxl_max as
riscv_cpu_class_init() class data.
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20250210133134.90879-6-philmd@linaro.org>
target/riscv: Declare RISCVCPUClass::misa_mxl_max as RISCVMXL
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20250210133134.90879-5-philmd@linaro.org>
target/xtensa: Finalize config in xtensa_register_core()
Make XtensaConfigList::config not const. Only modify
XtensaConfig within xtensa_register_core(), when the
class is registered, not when it is initialized.
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Acked-by: Max Filippov <jcmvbkbc@gmail.com>
Message-Id: <20250210133134.90879-4-philmd@linaro.org>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20250210133134.90879-3-philmd@linaro.org>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20250210133134.90879-2-philmd@linaro.org>
disas: Remove target_words_bigendian() call in initialize_debug_target()
All CPUClass implementating disas_set_info() must set the
disassemble_info::endian value.
Ensure that by setting %endian to BFD_ENDIAN_UNKNOWN before
calling the CPUClass::disas_set_info() handler, then asserting
%endian is not BFD_ENDIAN_UNKNOWN after the call.
This allows removing the target_words_bigendian() call in disas/.
Suggested-by: Richard Henderson <richard.henderson@linaro.org> Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org> Reviewed-by: Thomas Huth <thuth@redhat.com>
Message-Id: <20250210212931.62401-11-philmd@linaro.org>
target/xtensa: Set disassemble_info::endian value in disas_set_info()
Have the CPUClass::disas_set_info() callback set the
disassemble_info::endian field.
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org> Reviewed-by: Thomas Huth <thuth@redhat.com> Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20250210212931.62401-10-philmd@linaro.org>
target/sh4: Set disassemble_info::endian value in disas_set_info()
Have the CPUClass::disas_set_info() callback set the
disassemble_info::endian field.
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org> Reviewed-by: Thomas Huth <thuth@redhat.com> Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20250210212931.62401-9-philmd@linaro.org>
target/riscv: Set disassemble_info::endian value in disas_set_info()
Have the CPUClass::disas_set_info() callback set the
disassemble_info::endian field.
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org> Reviewed-by: Thomas Huth <thuth@redhat.com> Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20250210212931.62401-8-philmd@linaro.org>
target/ppc: Set disassemble_info::endian value in disas_set_info()
Have the CPUClass::disas_set_info() callback always set\
the disassemble_info::endian field.
Reviewed-by: Thomas Huth <thuth@redhat.com> Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20250210212931.62401-7-philmd@linaro.org>
target/mips: Set disassemble_info::endian value in disas_set_info()
Have the CPUClass::disas_set_info() callback set the
disassemble_info::endian field.
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org> Reviewed-by: Thomas Huth <thuth@redhat.com> Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20250210212931.62401-6-philmd@linaro.org>
target/microblaze: Set disassemble_info::endian value in disas_set_info
Have the CPUClass::disas_set_info() callback set the
disassemble_info::endian field.
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org> Reviewed-by: Thomas Huth <thuth@redhat.com> Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20250210212931.62401-5-philmd@linaro.org>
target/arm: Set disassemble_info::endian value in disas_set_info()
Have the CPUClass::disas_set_info() callback set the
disassemble_info::endian field.
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20250210212931.62401-4-philmd@linaro.org>
target: Set disassemble_info::endian value for big-endian targets
Have the CPUClass::disas_set_info() callback set the
disassemble_info::endian field for big-endian targets.
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org> Reviewed-by: Thomas Huth <thuth@redhat.com> Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20250210212931.62401-3-philmd@linaro.org>
target: Set disassemble_info::endian value for little-endian targets
Have the CPUClass::disas_set_info() callback set the
disassemble_info::endian field for little-endian targets.
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org> Reviewed-by: Thomas Huth <thuth@redhat.com> Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20250210212931.62401-2-philmd@linaro.org>
target/tricore: Ensure not being build on user emulation
Currently only system emulation is supported.
Assert no target code is built for user emulation.
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20250121142341.17001-4-philmd@linaro.org>
target/rx: Ensure not being build on user emulation
Currently only system emulation is supported.
Assert no target code is built for user emulation.
Remove #ifdef'ry since more work is required before
being able to emulate a user process.
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20250121142341.17001-3-philmd@linaro.org>
target/hexagon: Ensure not being build on system emulation
Currently only user emulation is supported.
Assert no target code is built for system emulation.
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org> Reviewed-by: Brian Cain <brian.cain@oss.qualcomm.com>
Message-Id: <20250121142341.17001-2-philmd@linaro.org>
target/openrisc: Call cpu_openrisc_clock_init() in cpu_realize()
OpenRISC timer is architecturally tied to the CPU.
It doesn't belong to the machine init() code to
instanciate it: move its creation when a vCPU is
realized (after being created).
Reported-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org> Acked-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20250114231304.77150-1-philmd@linaro.org>
target/microblaze: Consider endianness while translating code
Consider the CPU ENDI bit, swap instructions when the CPU
endianness doesn't match the binary one.
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20241105130431.22564-17-philmd@linaro.org>
mo_endian() returns the target endianness, currently static.
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20241105130431.22564-16-philmd@linaro.org>
target/microblaze: Set MO_TE once in do_load() / do_store()
All callers of do_load() / do_store() set MO_TE flag.
Set it once in the callees.
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20241105130431.22564-15-philmd@linaro.org>
Extract the implicit MO_TE definition in order to replace
it by runtime variable in the next commit.
Mechanical change using:
$ for n in UW UL UQ UO SW SL SQ; do \
sed -i -e "s/MO_TE$n/MO_TE | MO_$n/" \
$(git grep -l MO_TE$n target/microblaze); \
done
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-Id: <20241105130431.22564-14-philmd@linaro.org>
hw/core/generic-loader: Do not open-code cpu_set_pc()
Directly call cpu_set_pc() instead of open-coding it.
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20250122093028.52416-2-philmd@linaro.org>
cpus: Restrict cpu_get_memory_mapping() to system emulation
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20250121142341.17001-5-philmd@linaro.org>
cpus: Have cpu_exec_initfn() per user / system emulation
Slighly simplify cpu-target.c again by extracting cpu_exec_initfn()
to cpu-{system,user}.c, adding an empty stub for user emulation.
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20250123234415.59850-19-philmd@linaro.org>
cpus: Have cpu_class_init_props() per user / system emulation
Rather than maintaining a mix of system / user code for CPU
class properties, move system properties to cpu-system.c
and user ones to the new cpu-user.c unit.
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20250123234415.59850-18-philmd@linaro.org>
CPU_INTERRUPT_EXIT was removed in commit 3098dba01c7
("Use a dedicated function to request exit from execution
loop"), tlb_flush() and tb_flush() are related to TCG
accelerator.
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20250123234415.59850-17-philmd@linaro.org>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20250123234415.59850-16-philmd@linaro.org>
accel/kvm: Remove unused 'system/cpus.h' header in kvm-cpus.h
Missed in commit b86f59c7155 ("accel: replace struct CpusAccel
with AccelOpsClass") which removed the single CpusAccel use.
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20250123234415.59850-7-philmd@linaro.org>
accel/tcg: Move cpu_memory_rw_debug() user implementation to user-exec.c
cpu_memory_rw_debug() system implementation is defined in
system/physmem.c. Move the user one to accel/tcg/user-exec.c
to simplify cpu-target.c maintenance.
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20250217130610.18313-6-philmd@linaro.org>
accel/tcg: Avoid using lock_user() in cpu_memory_rw_debug()
We checked the page flags with page_get_flags(), so
locking the page is superfluous. Remove the lock_user()
calls and directly use g2h() in place.
Suggested-by: Richard Henderson <richard.henderson@linaro.org> Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20250217130610.18313-5-philmd@linaro.org>
accel/tcg: Take mmap lock in the whole cpu_memory_rw_debug() function
Simplify user implementation of cpu_memory_rw_debug() by
taking the mmap lock globally. See commit 87ab2704296
("linux-user: Allow gdbstub to ignore page protection")
for why this lock is necessary.
Suggested-by: Richard Henderson <richard.henderson@linaro.org> Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20250217130610.18313-4-philmd@linaro.org>
accel/tcg: Include missing bswap headers in user-exec.c
Commit 35c653c4029 ("tcg: Add 128-bit guest memory
primitives") introduced the use of bswap128() which is
declared in "qemu/int128.h", commit de95016dfbf ("accel/tcg:
Implement helper_{ld,st}*_mmu for user-only") introduced the
other bswap*() uses, which are declared in "qemu/bswap.h".
Include the missing headers.
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20250217130610.18313-3-philmd@linaro.org>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org> Acked-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20250123234415.59850-13-philmd@linaro.org>
accel: Forward-declare AccelOpsClass in 'qemu/typedefs.h'
The heavily imported "system/cpus.h" header includes "accel-ops.h"
to get AccelOpsClass type declaration. Reduce headers pressure by
forward declaring it in "qemu/typedefs.h", where we already
declare the AccelCPUState type.
Reduce "system/cpus.h" inclusions by only including
"system/accel-ops.h" when necessary.
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20250123234415.59850-14-philmd@linaro.org>
AccelCPUClass is for accelerator to initialize target specific
features of a vCPU. Not really related to hardware emulation,
rename "hw/core/accel-cpu.h" as "accel/accel-cpu-target.h"
(using the explicit -target suffix).
More importantly, target specific header often access the
target specific definitions which are in each target/FOO/cpu.h
header, usually included generically as "cpu.h" relative to
target/FOO/. However, there is already a "cpu.h" in hw/core/
which takes precedence. This change allows "accel-cpu-target.h"
to include a target "cpu.h".
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20250123234415.59850-12-philmd@linaro.org>
TCGCPUOps structure makes more sense in the accelerator context
rather than hardware emulation. Move it under the accel/tcg/ scope.
Mechanical change doing:
$ sed -i -e 's,hw/core/tcg-cpu-ops.h,accel/tcg/cpu-ops.h,g' \
$(git grep -l hw/core/tcg-cpu-ops.h)
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20250123234415.59850-11-philmd@linaro.org>
accel/tcg: Restrict 'icount_align_option' global to TCG
Since commit 740b1759734 ("cpu-timers, icount: new modules")
we don't need to expose icount_align_option to all the
system code, we can restrict it to TCG. Since it is used as
a boolean, declare it as 'bool' type.
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20250123234415.59850-10-philmd@linaro.org>
While cpu-exec.c is build for each target,tcg_flags helpers
aren't target specific. Move them to cpu-exec-common.c to
build them once.
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20250123234415.59850-8-philmd@linaro.org>
accel/tcg: Remove pointless initialization of cflags_next_tb
cflags_next_tb is always re-initialized in the CPU Reset()
handler in cpu_common_reset_hold(), no need to initialize
it in cpu_common_initfn().
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20240427155714.53669-13-philmd@linaro.org>
cpus: Keep default fields initialization in cpu_common_initfn()
cpu_common_initfn() is our target agnostic initializer,
while cpu_exec_initfn() is the target specific one.
The %as and %num_ases fields are not target specific,
so initialize them in the common helper.
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20250123234415.59850-6-philmd@linaro.org>
cpus: Cache CPUClass early in instance_init() handler
Cache CPUClass as early as possible, when the instance
is initialized.
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20250123234415.59850-5-philmd@linaro.org>
Use the tcg_enabled() check so the compiler can elide
the call when TCG isn't available, allowing to remove
the tb_flush() stub.
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org> Reviewed-by: Alex Bennée <alex.bennee@linaro.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20250123234415.59850-4-philmd@linaro.org>
gdbstub: Clarify no more than @gdb_num_core_regs can be accessed
Both CPUClass::gdb_read_register() and CPUClass::gdb_write_register()
handlers are called from common gdbstub code, and won't be called with
register index over CPUClass::gdb_num_core_regs:
int gdb_read_register(CPUState *cpu, GByteArray *buf, int reg)
{
CPUClass *cc = CPU_GET_CLASS(cpu);
Clarify that in CPUClass docstring, and remove unreachable code on
the microblaze and openrisc implementations.
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org> Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20250122093028.52416-3-philmd@linaro.org>
We already have "qemu/compiler.h" for compiler-specific arrangements,
automatically included by "qemu/osdep.h" for each source file. No
need to explicitly include a header for a Clang particularity.
Suggested-by: Pierrick Bouvier <pierrick.bouvier@linaro.org> Reviewed-by: Pierrick Bouvier <pierrick.bouvier@linaro.org> Reviewed-by: Alex Bennée <alex.bennee@linaro.org> Reviewed-by: Kevin Wolf <kwolf@redhat.com> Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20250117170201.91182-1-philmd@linaro.org>
docs/devel/qapi-code-gen: Discourage use of 'prefix'
QAPI's 'prefix' feature can make the connection between enumeration
type and its constants less than obvious. It's best used with
restraint. Commit 7bbadc60b5..64f5e9db77 eliminated most uses.
Discourage new ones.
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-ID: <20250228134335.132278-1-armbru@redhat.com> Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
qdev: Improve a few more PropertyInfo @description members
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-ID: <20250227085601.4140852-7-armbru@redhat.com> Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
qdev: Improve PropertyInfo member @description for enum properties
Consistently use format "DESCRIPTION (VALUE/VALUE...)".
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-ID: <20250227085601.4140852-6-armbru@redhat.com> Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
projects / thirdparty / qemu.git / log
