Commit Graph

112207 Commits

Author SHA1 Message Date
Igor Mammedov
e34f4d87e8 kvm: error out of kvm_irqchip_add_msi_route() in case of full route table
subj is calling kvm_add_routing_entry() which simply extends
  KVMState::irq_routes::entries[]
but doesn't check if number of routes goes beyond limit the kernel
is willing to accept. Which later leads toi the assert

  qemu-kvm: ../accel/kvm/kvm-all.c:1833: kvm_irqchip_commit_routes: Assertion `ret == 0' failed

typically it happens during guest boot for large enough guest

Reproduced with:
  ./qemu --enable-kvm -m 8G -smp 64 -machine pc \
     `for b in {1..2}; do echo -n "-device pci-bridge,id=pci$b,chassis_nr=$b ";
        for i in {0..31}; do touch /tmp/vblk$b$i;
           echo -n "-drive file=/tmp/vblk$b$i,if=none,id=drive$b$i,format=raw
                    -device virtio-blk-pci,drive=drive$b$i,bus=pci$b ";
      done; done`

While crash at boot time is bad, the same might happen at hotplug time
which is unacceptable.
So instead calling kvm_add_routing_entry() unconditionally, check first
that number of routes won't exceed KVM_CAP_IRQ_ROUTING. This way virtio
device insteads killin qemu, will gracefully fail to initialize device
as expected with following warnings on console:
    virtio-blk failed to set guest notifier (-28), ensure -accel kvm is set.
    virtio_bus_start_ioeventfd: failed. Fallback to userspace (slower).

Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Message-ID: <20240408110956.451558-1-imammedo@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2024-04-08 21:22:00 +02:00
Paolo Bonzini
207a2baa16 nanomips: fix warnings with GCC 14
GCC 14 shows -Wshadow=local warnings if an enum conflicts with a local
variable (including a parameter).  To avoid this, move the problematic
enum and all of its dependencies after the hundreds of functions that
have a parameter named "instruction".

Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2024-04-08 21:21:48 +02:00
Martin Hundebøll
d1ce2cc95b Makefile: preserve --jobserver-auth argument when calling ninja
Qemu wraps its call to ninja in a Makefile. Since ninja, as opposed to
make, utilizes all CPU cores by default, the qemu Makefile translates
the absense of a `-jN` argument into `-j1`. This breaks jobserver
functionality, so update the -jN mangling to take the --jobserver-auth
argument into considerationa too.

Signed-off-by: Martin Hundebøll <martin@geanix.com>
Message-Id: <20240402081738.1051560-1-martin@geanix.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2024-04-08 10:04:44 +02:00
Peter Maydell
ce64e6224a qemu-sparc queue
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Merge tag 'qemu-sparc-20240404' of https://github.com/mcayland/qemu into staging

qemu-sparc queue

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# gpg: Signature made Thu 04 Apr 2024 15:19:29 BST
# gpg:                using RSA key CC621AB98E82200D915CC9C45BC2C56FAE0F321F
# gpg:                issuer "mark.cave-ayland@ilande.co.uk"
# gpg: Good signature from "Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>" [full]
# Primary key fingerprint: CC62 1AB9 8E82 200D 915C  C9C4 5BC2 C56F AE0F 321F

* tag 'qemu-sparc-20240404' of https://github.com/mcayland/qemu:
  esp.c: remove explicit setting of DRQ within ESP state machine
  esp.c: ensure esp_pdma_write() always calls esp_fifo_push()
  esp.c: update esp_fifo_{push, pop}() to call esp_update_drq()
  esp.c: introduce esp_update_drq() and update esp_fifo_{push, pop}_buf() to use it
  esp.c: move esp_set_phase() and esp_get_phase() towards the beginning of the file
  esp.c: prevent cmdfifo overflow in esp_cdb_ready()
  esp.c: rework esp_cdb_length() into esp_cdb_ready()
  esp.c: don't assert() if FIFO empty when executing non-DMA SELATNS
  esp.c: introduce esp_fifo_push_buf() function for pushing to the FIFO
  esp.c: change esp_fifo_pop_buf() to take ESPState
  esp.c: use esp_fifo_push() instead of fifo8_push()
  esp.c: change esp_fifo_pop() to take ESPState
  esp.c: change esp_fifo_push() to take ESPState
  esp.c: replace cmdfifo use of esp_fifo_pop() in do_message_phase()
  esp.c: replace esp_fifo_pop_buf() with esp_fifo8_pop_buf() in do_message_phase()
  esp.c: replace esp_fifo_pop_buf() with esp_fifo8_pop_buf() in do_command_phase()
  esp.c: move esp_fifo_pop_buf() internals to new esp_fifo8_pop_buf() function

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2024-04-04 15:28:06 +01:00
Peter Maydell
da20a1adf4 Pull request
Fix a memory leak in virtio-blk zone report emulation code when the request is
 invalid.
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Merge tag 'block-pull-request' of https://gitlab.com/stefanha/qemu into staging

Pull request

Fix a memory leak in virtio-blk zone report emulation code when the request is
invalid.

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# gpg: Signature made Thu 04 Apr 2024 14:58:09 BST
# gpg:                using RSA key 8695A8BFD3F97CDAAC35775A9CA4ABB381AB73C8
# gpg: Good signature from "Stefan Hajnoczi <stefanha@redhat.com>" [full]
# gpg:                 aka "Stefan Hajnoczi <stefanha@gmail.com>" [full]
# Primary key fingerprint: 8695 A8BF D3F9 7CDA AC35  775A 9CA4 ABB3 81AB 73C8

* tag 'block-pull-request' of https://gitlab.com/stefanha/qemu:
  block/virtio-blk: Fix memory leak from virtio_blk_zone_report

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2024-04-04 15:27:56 +01:00
Mark Cave-Ayland
d7fe931818 esp.c: remove explicit setting of DRQ within ESP state machine
Now the esp_update_drq() is called for all reads/writes to the FIFO, there is
no need to manually raise and lower the DRQ signal.

Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Resolves: https://gitlab.com/qemu-project/qemu/-/issues/611
Resolves: https://gitlab.com/qemu-project/qemu/-/issues/1831
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Message-Id: <20240324191707.623175-18-mark.cave-ayland@ilande.co.uk>
Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
2024-04-04 15:17:53 +01:00
Mark Cave-Ayland
60c572502c esp.c: ensure esp_pdma_write() always calls esp_fifo_push()
This ensures that esp_update_drq() is called via esp_fifo_push() whenever the
host uses PDMA to transfer data to a SCSI device.

Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Message-Id: <20240324191707.623175-17-mark.cave-ayland@ilande.co.uk>
Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
2024-04-04 15:17:53 +01:00
Mark Cave-Ayland
ffa3a5f2be esp.c: update esp_fifo_{push, pop}() to call esp_update_drq()
This ensures that the DRQ line is always set correctly when reading/writing
single bytes to/from the FIFO.

Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Message-Id: <20240324191707.623175-16-mark.cave-ayland@ilande.co.uk>
Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
2024-04-04 15:17:53 +01:00
Mark Cave-Ayland
743d873645 esp.c: introduce esp_update_drq() and update esp_fifo_{push, pop}_buf() to use it
This new function sets the DRQ line correctly according to the current transfer
mode, direction and FIFO contents. Update esp_fifo_push_buf() and esp_fifo_pop_buf()
to use it so that DRQ is always set correctly when reading/writing multiple bytes
to/from the FIFO.

Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Message-Id: <20240324191707.623175-15-mark.cave-ayland@ilande.co.uk>
Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
2024-04-04 15:17:53 +01:00
Mark Cave-Ayland
2c1017bfc2 esp.c: move esp_set_phase() and esp_get_phase() towards the beginning of the file
This allows these functions to be used earlier in the file without needing a
separate forward declaration.

Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Message-Id: <20240324191707.623175-14-mark.cave-ayland@ilande.co.uk>
Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
2024-04-04 15:17:53 +01:00
Mark Cave-Ayland
3cc70889a3 esp.c: prevent cmdfifo overflow in esp_cdb_ready()
During normal use the cmdfifo will never wrap internally and cmdfifo_cdb_offset
will always indicate the start of the SCSI CDB. However it is possible that a
malicious guest could issue an invalid ESP command sequence such that cmdfifo
wraps internally and cmdfifo_cdb_offset could point beyond the end of the FIFO
data buffer.

Add an extra check to fifo8_peek_buf() to ensure that if the cmdfifo has wrapped
internally then esp_cdb_ready() will exit rather than allow scsi_cdb_length() to
access data outside the cmdfifo data buffer.

Reported-by: Chuhong Yuan <hslester96@gmail.com>
Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-Id: <20240324191707.623175-13-mark.cave-ayland@ilande.co.uk>
Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
2024-04-04 15:17:53 +01:00
Mark Cave-Ayland
5aa0df4067 esp.c: rework esp_cdb_length() into esp_cdb_ready()
The esp_cdb_length() function is only used as part of a calculation to determine
whether the cmdfifo contains an entire SCSI CDB. Rework esp_cdb_length() into a
new esp_cdb_ready() function which both enables us to handle the case where
scsi_cdb_length() returns -1, plus simplify the logic for its callers.

Suggested-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-Id: <20240324191707.623175-12-mark.cave-ayland@ilande.co.uk>
Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
2024-04-04 15:17:53 +01:00
Mark Cave-Ayland
5a50644e47 esp.c: don't assert() if FIFO empty when executing non-DMA SELATNS
The current logic assumes that at least 1 byte is present in the FIFO when
executing a non-DMA SELATNS command, but this may not be the case if the
guest executes an invalid ESP command sequence.

Reported-by: Chuhong Yuan <hslester96@gmail.com>
Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-Id: <20240324191707.623175-11-mark.cave-ayland@ilande.co.uk>
Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
2024-04-04 15:17:53 +01:00
Mark Cave-Ayland
266170f91f esp.c: introduce esp_fifo_push_buf() function for pushing to the FIFO
Instead of pushing data into the FIFO directly with fifo8_push_all(), add a new
esp_fifo_push_buf() function and use it accordingly.

Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Message-Id: <20240324191707.623175-10-mark.cave-ayland@ilande.co.uk>
Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
2024-04-04 15:17:53 +01:00
Mark Cave-Ayland
da8381260b esp.c: change esp_fifo_pop_buf() to take ESPState
Now that all users of esp_fifo_pop_buf() operate on the main FIFO there is no
need to pass the FIFO explicitly.

Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Message-Id: <20240324191707.623175-9-mark.cave-ayland@ilande.co.uk>
Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
2024-04-04 15:17:53 +01:00
Mark Cave-Ayland
1f46d1c3a5 esp.c: use esp_fifo_push() instead of fifo8_push()
There are still a few places that use fifo8_push() instead of esp_fifo_push() in
order to push a value into the FIFO. Update those places to use esp_fifo_push()
instead.

Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Message-Id: <20240324191707.623175-8-mark.cave-ayland@ilande.co.uk>
Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
2024-04-04 15:17:53 +01:00
Mark Cave-Ayland
61fa150d12 esp.c: change esp_fifo_pop() to take ESPState
Now that all users of esp_fifo_pop() operate on the main FIFO there is no need
to pass the FIFO explicitly.

Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Message-Id: <20240324191707.623175-7-mark.cave-ayland@ilande.co.uk>
Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
2024-04-04 15:17:53 +01:00
Mark Cave-Ayland
0e7dbe29c2 esp.c: change esp_fifo_push() to take ESPState
Now that all users of esp_fifo_push() operate on the main FIFO there is no need
to pass the FIFO explicitly.

Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Message-Id: <20240324191707.623175-6-mark.cave-ayland@ilande.co.uk>
Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
2024-04-04 15:17:53 +01:00
Mark Cave-Ayland
1828000b48 esp.c: replace cmdfifo use of esp_fifo_pop() in do_message_phase()
Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Message-Id: <20240324191707.623175-5-mark.cave-ayland@ilande.co.uk>
Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
2024-04-04 15:17:53 +01:00
Mark Cave-Ayland
2260402be1 esp.c: replace esp_fifo_pop_buf() with esp_fifo8_pop_buf() in do_message_phase()
The aim is to restrict the esp_fifo_*() functions so that they only operate on
the hardware FIFO. When reading from cmdfifo in do_message_phase() use the
underlying esp_fifo8_pop_buf() function directly.

Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-Id: <20240324191707.623175-4-mark.cave-ayland@ilande.co.uk>
Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
2024-04-04 15:17:53 +01:00
Mark Cave-Ayland
f87d048705 esp.c: replace esp_fifo_pop_buf() with esp_fifo8_pop_buf() in do_command_phase()
The aim is to restrict the esp_fifo_*() functions so that they only operate on
the hardware FIFO. When reading from cmdfifo in do_command_phase() use the
underlying esp_fifo8_pop_buf() function directly.

Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-Id: <20240324191707.623175-3-mark.cave-ayland@ilande.co.uk>
Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
2024-04-04 15:17:53 +01:00
Mark Cave-Ayland
d103d0db71 esp.c: move esp_fifo_pop_buf() internals to new esp_fifo8_pop_buf() function
Update esp_fifo_pop_buf() to be a simple wrapper onto the new esp_fifo8_pop_buf()
function.

Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-Id: <20240324191707.623175-2-mark.cave-ayland@ilande.co.uk>
Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
2024-04-04 15:17:53 +01:00
Zheyu Ma
bbdf902366 block/virtio-blk: Fix memory leak from virtio_blk_zone_report
This modification ensures that in scenarios where the buffer size is
insufficient for a zone report, the function will now properly set an
error status and proceed to a cleanup label, instead of merely
returning.

The following ASAN log reveals it:

==1767400==ERROR: LeakSanitizer: detected memory leaks
Direct leak of 312 byte(s) in 1 object(s) allocated from:
    #0 0x64ac7b3280cd in malloc llvm/compiler-rt/lib/asan/asan_malloc_linux.cpp:129:3
    #1 0x735b02fb9738 in g_malloc (/lib/x86_64-linux-gnu/libglib-2.0.so.0+0x5e738)
    #2 0x64ac7d23be96 in virtqueue_split_pop hw/virtio/virtio.c:1612:12
    #3 0x64ac7d23728a in virtqueue_pop hw/virtio/virtio.c:1783:16
    #4 0x64ac7cfcaacd in virtio_blk_get_request hw/block/virtio-blk.c:228:27
    #5 0x64ac7cfca7c7 in virtio_blk_handle_vq hw/block/virtio-blk.c:1123:23
    #6 0x64ac7cfecb95 in virtio_blk_handle_output hw/block/virtio-blk.c:1157:5

Signed-off-by: Zheyu Ma <zheyuma97@gmail.com>
Message-id: 20240404120040.1951466-1-zheyuma97@gmail.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2024-04-04 09:29:42 -04:00
Peter Maydell
786fd793b8 * lsi53c895a: fix assertion failure with invalid Block Move
* vga: fix assertion failure with 4- and 16-color modes
 * remove unnecessary assignment
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Merge tag 'for-upstream' of https://gitlab.com/bonzini/qemu into staging

* lsi53c895a: fix assertion failure with invalid Block Move
* vga: fix assertion failure with 4- and 16-color modes
* remove unnecessary assignment

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# gpg: Signature made Wed 03 Apr 2024 11:04:42 BST
# gpg:                using RSA key F13338574B662389866C7682BFFBD25F78C7AE83
# gpg:                issuer "pbonzini@redhat.com"
# gpg: Good signature from "Paolo Bonzini <bonzini@gnu.org>" [full]
# gpg:                 aka "Paolo Bonzini <pbonzini@redhat.com>" [full]
# Primary key fingerprint: 46F5 9FBD 57D6 12E7 BFD4  E2F7 7E15 100C CD36 69B1
#      Subkey fingerprint: F133 3857 4B66 2389 866C  7682 BFFB D25F 78C7 AE83

* tag 'for-upstream' of https://gitlab.com/bonzini/qemu:
  pc_q35: remove unnecessary m->alias assignment
  lsi53c895a: avoid out of bounds access to s->msg[]
  vga: do not treat horiz pel panning value of 8 as "enabled"
  vga: adjust dirty memory region if pel panning is active
  vga: move computation of dirty memory region later
  vga: merge conditionals on shift control register

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2024-04-03 12:52:03 +01:00
Peter Maydell
e5c6528dce Update version for v9.0.0-rc2 release
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2024-04-02 20:59:43 +01:00
Paolo Bonzini
8fc4bdc537 pc_q35: remove unnecessary m->alias assignment
The assignment is already inherited from pc-q35-8.2.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2024-04-02 18:08:59 +02:00
Paolo Bonzini
e497e6a557 lsi53c895a: avoid out of bounds access to s->msg[]
If no bytes are there to process in the message in phase,
the input data latch (s->sidl) is set to s->msg[-1].  Just
do nothing since no DMA is performed.

Reported-by: Chuhong Yuan <hslester96@gmail.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2024-04-02 18:08:59 +02:00
Paolo Bonzini
1d1ee7e0a1 vga: do not treat horiz pel panning value of 8 as "enabled"
Horizontal pel panning bit 3 is only used in text mode.  In graphics
mode, it can be treated as if it was zero, thus not extending the
dirty memory region.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2024-04-02 18:08:59 +02:00
Paolo Bonzini
3b6d2b1962 vga: adjust dirty memory region if pel panning is active
When pel panning is active, one more byte is read from each of the VGA
memory planes.  This has to be accounted in the computation of region_end,
otherwise vga_draw_graphic() fails an assertion:

qemu-system-i386: ../system/physmem.c:946: cpu_physical_memory_snapshot_get_dirty: Assertion `start + length <= snap->end' failed.

Reported-by: Helge Konetzka <hk@zapateado.de>
Resolves: https://gitlab.com/qemu-project/qemu/-/issues/2244
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2024-04-02 18:08:59 +02:00
Paolo Bonzini
3826a372e4 vga: move computation of dirty memory region later
Move the computation of region_start and region_end after the value of
"bits" is known.  This makes it possible to distinguish modes that
support horizontal pel panning from modes that do not.

Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2024-04-02 18:08:59 +02:00
Paolo Bonzini
5c00acebb6 vga: merge conditionals on shift control register
There are two sets of conditionals using the shift control bits: one to
verify the palette and adjust disp_width, one to compute the "v" and
"bits" variables.  Merge them into one, with the extra benefit that
we now have the "bits" value available early and can use it to
compute region_end.

Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2024-04-02 18:08:59 +02:00
Peter Maydell
5456f2e235 Misc HW patch queue
- MAINTAINERS updates (Zhao, Glenn)
 - Replace incorrect mentions of 'softmmu' by 'system' (Phil)
 - Avoid using inlined functions with external linkage (Phil)
 - Restrict CXL to x86 PC PCI-based machines (Phil)
 - Remove unnecessary NULL check in bdrv_pad_request (Kevin)
 - Fix a pair of -Werror=maybe-uninitialized (Marc-André)
 - Initialize variable in xen_evtchn_soft_reset (Artem)
 - Do not access virtio-net tx queue until vhost is started (Yajun)
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Merge tag 'hw-misc-20240402' of https://github.com/philmd/qemu into staging

Misc HW patch queue

- MAINTAINERS updates (Zhao, Glenn)
- Replace incorrect mentions of 'softmmu' by 'system' (Phil)
- Avoid using inlined functions with external linkage (Phil)
- Restrict CXL to x86 PC PCI-based machines (Phil)
- Remove unnecessary NULL check in bdrv_pad_request (Kevin)
- Fix a pair of -Werror=maybe-uninitialized (Marc-André)
- Initialize variable in xen_evtchn_soft_reset (Artem)
- Do not access virtio-net tx queue until vhost is started (Yajun)

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# gpg: Signature made Tue 02 Apr 2024 15:23:04 BST
# gpg:                using RSA key FAABE75E12917221DCFD6BB2E3E32C2CDEADC0DE
# gpg: Good signature from "Philippe Mathieu-Daudé (F4BUG) <f4bug@amsat.org>" [full]
# Primary key fingerprint: FAAB E75E 1291 7221 DCFD  6BB2 E3E3 2C2C DEAD C0DE

* tag 'hw-misc-20240402' of https://github.com/philmd/qemu:
  hw/net/virtio-net: fix qemu set used ring flag even vhost started
  hw/xen_evtchn: Initialize flush_kvm_routes
  gpio/pca955x: Update maintainer email address
  hw/nvme: fix -Werror=maybe-uninitialized
  plugins: fix -Werror=maybe-uninitialized false-positive
  block: Remove unnecessary NULL check in bdrv_pad_request()
  hw/i386/pc: Restrict CXL to PCI-based machines
  MAINTAINERS: Fix error-report.c entry
  qtest/libqos: Reduce size_to_prdtl() declaration scope
  accel/hvf: Un-inline hvf_arch_supports_guest_debug()
  hw/arm/smmu: Avoid using inlined functions with external linkage again
  target/ppc: Rename init_excp_4xx_softmmu() -> init_excp_4xx()
  gdbstub/system: Rename 'user_ctx' argument as 'ctx'
  gdbstub: Correct invalid mentions of 'softmmu' by 'system'
  accel/tcg/plugin: Remove CONFIG_SOFTMMU_GATE definition

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2024-04-02 16:22:58 +01:00
Yajun Wu
4c54f5bc8e hw/net/virtio-net: fix qemu set used ring flag even vhost started
When vhost-user or vhost-kernel is handling virtio net datapath,
QEMU should not touch used ring.

But with vhost-user socket reconnect scenario, in a very rare case
(has pending kick event). VRING_USED_F_NO_NOTIFY is set by QEMU in
following code path:

	#0  virtio_queue_split_set_notification (vq=0x7ff5f4c920a8, enable=0) at ../hw/virtio/virtio.c:511
	#1  0x0000559d6dbf033b in virtio_queue_set_notification (vq=0x7ff5f4c920a8, enable=0) at ../hw/virtio/virtio.c:576
	#2  0x0000559d6dbbbdbc in virtio_net_handle_tx_bh (vdev=0x559d703a6aa0, vq=0x7ff5f4c920a8) at ../hw/net/virtio-net.c:2801
	#3  0x0000559d6dbf4791 in virtio_queue_notify_vq (vq=0x7ff5f4c920a8) at ../hw/virtio/virtio.c:2248
	#4  0x0000559d6dbf79da in virtio_queue_host_notifier_read (n=0x7ff5f4c9211c) at ../hw/virtio/virtio.c:3525
	#5  0x0000559d6d9a5814 in virtio_bus_cleanup_host_notifier (bus=0x559d703a6a20, n=1) at ../hw/virtio/virtio-bus.c:321
	#6  0x0000559d6dbf83c9 in virtio_device_stop_ioeventfd_impl (vdev=0x559d703a6aa0) at ../hw/virtio/virtio.c:3774
	#7  0x0000559d6d9a55c8 in virtio_bus_stop_ioeventfd (bus=0x559d703a6a20) at ../hw/virtio/virtio-bus.c:259
	#8  0x0000559d6d9a53e8 in virtio_bus_grab_ioeventfd (bus=0x559d703a6a20) at ../hw/virtio/virtio-bus.c:199
	#9  0x0000559d6dbf841c in virtio_device_grab_ioeventfd (vdev=0x559d703a6aa0) at ../hw/virtio/virtio.c:3783
	#10 0x0000559d6d9bde18 in vhost_dev_enable_notifiers (hdev=0x559d707edd70, vdev=0x559d703a6aa0) at ../hw/virtio/vhost.c:1592
	#11 0x0000559d6d89a0b8 in vhost_net_start_one (net=0x559d707edd70, dev=0x559d703a6aa0) at ../hw/net/vhost_net.c:266
	#12 0x0000559d6d89a6df in vhost_net_start (dev=0x559d703a6aa0, ncs=0x559d7048d890, data_queue_pairs=31, cvq=0) at ../hw/net/vhost_net.c:412
	#13 0x0000559d6dbb5b89 in virtio_net_vhost_status (n=0x559d703a6aa0, status=15 '\017') at ../hw/net/virtio-net.c:311
	#14 0x0000559d6dbb5e34 in virtio_net_set_status (vdev=0x559d703a6aa0, status=15 '\017') at ../hw/net/virtio-net.c:392
	#15 0x0000559d6dbb60d8 in virtio_net_set_link_status (nc=0x559d7048d890) at ../hw/net/virtio-net.c:455
	#16 0x0000559d6da64863 in qmp_set_link (name=0x559d6f0b83d0 "hostnet1", up=true, errp=0x7ffdd76569f0) at ../net/net.c:1459
	#17 0x0000559d6da7226e in net_vhost_user_event (opaque=0x559d6f0b83d0, event=CHR_EVENT_OPENED) at ../net/vhost-user.c:301
	#18 0x0000559d6ddc7f63 in chr_be_event (s=0x559d6f2ffea0, event=CHR_EVENT_OPENED) at ../chardev/char.c:62
	#19 0x0000559d6ddc7fdc in qemu_chr_be_event (s=0x559d6f2ffea0, event=CHR_EVENT_OPENED) at ../chardev/char.c:82

This issue causes guest kernel stop kicking device and traffic stop.

Add vhost_started check in virtio_net_handle_tx_bh to fix this wrong
VRING_USED_F_NO_NOTIFY set.

Signed-off-by: Yajun Wu <yajunw@nvidia.com>
Reviewed-by: Jiri Pirko <jiri@nvidia.com>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Message-ID: <20240402045109.97729-1-yajunw@nvidia.com>
[PMD: Use unlikely()]
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
2024-04-02 16:15:07 +02:00
Artem Chernyshev
95a3645527 hw/xen_evtchn: Initialize flush_kvm_routes
In xen_evtchn_soft_reset() variable flush_kvm_routes can
be used before being initialized.

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

Signed-off-by: Oleg Sviridov <oleg.sviridov@red-soft.ru>
Signed-off-by: Artem Chernyshev <artem.chernyshev@red-soft.ru>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-ID: <20240329113939.257033-1-artem.chernyshev@red-soft.ru>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
2024-04-02 16:15:07 +02:00
Glenn Miles
0fa5eefa16 gpio/pca955x: Update maintainer email address
It was noticed that my linux.vnet.ibm.com address does not
always work so dropping the vnet to see if that works better.

Signed-off-by: Glenn Miles <milesg@linux.ibm.com>
Message-ID: <20240328194914.2145709-1-milesg@linux.vnet.ibm.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
2024-04-02 16:15:07 +02:00
Marc-André Lureau
8cdb368d19 hw/nvme: fix -Werror=maybe-uninitialized
../hw/nvme/ctrl.c:6081:21: error: ‘result’ may be used uninitialized [-Werror=maybe-uninitialized]

It's not obvious that 'result' is set in all code paths. When &result is
a returned argument, it's even less clear.

Looking at various assignments, 0 seems to be a suitable default value.

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Klaus Jensen <k.jensen@samsung.com>
Message-ID: <20240328102052.3499331-18-marcandre.lureau@redhat.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
2024-04-02 16:15:07 +02:00
Marc-André Lureau
c65288de4d plugins: fix -Werror=maybe-uninitialized false-positive
../plugins/loader.c:405:15: error: ‘ctx’ may be used uninitialized [-Werror=maybe-uninitialized]

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Pierrick Bouvier <pierrick.bouvier@linaro.org>
Message-ID: <20240328102052.3499331-15-marcandre.lureau@redhat.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
2024-04-02 16:15:07 +02:00
Kevin Wolf
e193d4bdb8 block: Remove unnecessary NULL check in bdrv_pad_request()
Coverity complains that the check introduced in commit 3f934817 suggests
that qiov could be NULL and we dereference it before reaching the check.
In fact, all of the callers pass a non-NULL pointer, so just remove the
misleading check.

Resolves: Coverity CID 1542668
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Fiona Ebner <f.ebner@proxmox.com>
Message-ID: <20240327192750.204197-1-kwolf@redhat.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
2024-04-02 14:55:32 +02:00
Philippe Mathieu-Daudé
aab1b3eeb4 hw/i386/pc: Restrict CXL to PCI-based machines
CXL is based on PCIe. In is pointless to initialize
its context on non-PCI machines.

Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Acked-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Message-ID: <20240327161642.33574-1-philmd@linaro.org>
2024-04-02 14:55:32 +02:00
Zhao Liu
3325af5355 MAINTAINERS: Fix error-report.c entry
The commit 15002f60f7 ("util: rename qemu-error.c to match its header
name") renamed util/qemu-error.c to util/error-report.c but missed to
change the corresponding entry.

To avoid get_maintainer.pl failing, update the error-report.c entry.

Fixes: 15002f60f7 ("util: rename qemu-error.c to match its header name")
Signed-off-by: Zhao Liu <zhao1.liu@intel.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-ID: <20240327115539.3860270-1-zhao1.liu@linux.intel.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
2024-04-02 14:55:32 +02:00
Philippe Mathieu-Daudé
4fbb7687cf qtest/libqos: Reduce size_to_prdtl() declaration scope
Since size_to_prdtl() is only used within ahci.c,
declare it statically. This removes the last use
of "inlined function with external linkage". See
previous commit and commit 9de9fa5cf2 for rationale.

Suggested-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Message-Id: <20240326171009.26696-4-philmd@linaro.org>
2024-04-02 14:55:32 +02:00
Philippe Mathieu-Daudé
d6fd5d8346 accel/hvf: Un-inline hvf_arch_supports_guest_debug()
See previous commit and commit 9de9fa5cf2 ("Avoid using inlined
functions with external linkage") for rationale.

Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20240313184954.42513-3-philmd@linaro.org>
2024-04-02 14:55:32 +02:00
Philippe Mathieu-Daudé
0b796f3810 hw/arm/smmu: Avoid using inlined functions with external linkage again
Similarly to commit 9de9fa5cf2 ("hw/arm/smmu-common: Avoid using
inlined functions with external linkage"):

  None of our code base require / use inlined functions with external
  linkage. Some places use internal inlining in the hot path. These
  two functions are certainly not in any hot path and don't justify
  any inlining, so these are likely oversights rather than intentional.

Fix:

  C compiler for the host machine: clang (clang 15.0.0 "Apple clang version 15.0.0 (clang-1500.3.9.4)")
  ...
  hw/arm/smmu-common.c:203:43: error: static function 'smmu_hash_remove_by_vmid' is
  used in an inline function with external linkage [-Werror,-Wstatic-in-inline]
      g_hash_table_foreach_remove(s->iotlb, smmu_hash_remove_by_vmid, &vmid);
                                            ^
  include/hw/arm/smmu-common.h:197:1: note: use 'static' to give inline function 'smmu_iotlb_inv_vmid' internal linkage
  void smmu_iotlb_inv_vmid(SMMUState *s, uint16_t vmid);
  ^
  static
  hw/arm/smmu-common.c:139:17: note: 'smmu_hash_remove_by_vmid' declared here
  static gboolean smmu_hash_remove_by_vmid(gpointer key, gpointer value,
                ^

Fixes: ccc3ee3871 ("hw/arm/smmuv3: Add CMDs related to stage-2")
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Eric Auger <eric.auger@redhat.com>
Message-Id: <20240313184954.42513-2-philmd@linaro.org>
2024-04-02 14:55:32 +02:00
Philippe Mathieu-Daudé
870120b467 target/ppc: Rename init_excp_4xx_softmmu() -> init_excp_4xx()
Unify with other init_excp_FOO() in the same file.

Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Acked-by: Nicholas Piggin <npiggin@gmail.com>
Message-Id: <20240313213339.82071-5-philmd@linaro.org>
2024-04-02 14:55:15 +02:00
Philippe Mathieu-Daudé
0eaf7fb9a8 gdbstub/system: Rename 'user_ctx' argument as 'ctx'
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20240313213339.82071-4-philmd@linaro.org>
2024-04-02 14:55:07 +02:00
Philippe Mathieu-Daudé
25f34eb708 gdbstub: Correct invalid mentions of 'softmmu' by 'system'
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: <20240313213339.82071-3-philmd@linaro.org>
2024-04-02 14:54:58 +02:00
Philippe Mathieu-Daudé
93019696aa accel/tcg/plugin: Remove CONFIG_SOFTMMU_GATE definition
The CONFIG_SOFTMMU_GATE definition was never used, remove it.

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: <20240313213339.82071-2-philmd@linaro.org>
2024-04-02 14:54:35 +02:00
Peter Maydell
2fd8df9362 trivial patches for 2024-04-02
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Merge tag 'pull-trivial-patches' of https://gitlab.com/mjt0k/qemu into staging

trivial patches for 2024-04-02

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# gpg: Signature made Tue 02 Apr 2024 11:39:00 BST
# gpg:                using RSA key 7B73BAD68BE7A2C289314B22701B4F6B1A693E59
# gpg:                issuer "mjt@tls.msk.ru"
# gpg: Good signature from "Michael Tokarev <mjt@tls.msk.ru>" [full]
# gpg:                 aka "Michael Tokarev <mjt@corpit.ru>" [full]
# gpg:                 aka "Michael Tokarev <mjt@debian.org>" [full]
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* tag 'pull-trivial-patches' of https://gitlab.com/mjt0k/qemu:
  hmp: Add help information for watchdog action: inject-nmi
  Fix some typos in documentation (found by codespell)
  fpu/softfloat: Remove mention of TILE-Gx target
  usb-audio: Fix invalid values in AudioControl descriptors

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2024-04-02 12:58:22 +01:00
Dayu Liu
7805132bc3 hmp: Add help information for watchdog action: inject-nmi
virsh qemu-monitor-command --hmp help information of
watchdog_action missing inject-nmi which already supported
in Commit 795dc6e4

Resolves: https://gitlab.com/qemu-project/qemu/-/issues/2247
Signed-off-by: Dayu Liu <liu.dayu@zte.com.cn>
Reviewed-by: Michael Tokarev <mjt@tls.msk.ru>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
[Mjt: decode and word-wrap commit message and add Resolves: tag]
2024-04-02 13:38:51 +03:00
Stefan Weil
f6822fee96 Fix some typos in documentation (found by codespell)
Signed-off-by: Stefan Weil <sw@weilnetz.de>
Reviewed-by: Michael Tokarev <mjt@tls.msk.ru>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
2024-04-02 13:38:40 +03:00