According to AMD's Speculative Return Stack Overflow whitepaper (link
below), the hypervisor should synthesize the value of IBPB_BRTYPE and
SBPB CPUID bits to the guest.
Support for this is already present in the kernel with commit
e47d86083c66 ("KVM: x86: Add SBPB support") and commit 6f0f23ef76be
("KVM: x86: Add IBPB_BRTYPE support").
Add support in QEMU to expose the bits to the guest OS.
host:
# cat /sys/devices/system/cpu/vulnerabilities/spec_rstack_overflow
Mitigation: Safe RET
before (guest):
$ cpuid -l 0x80000021 -1 -r
0x80000021 0x00: eax=0x00000045 ebx=0x00000000 ecx=0x00000000 edx=0x00000000
^
$ cat /sys/devices/system/cpu/vulnerabilities/spec_rstack_overflow
Vulnerable: Safe RET, no microcode
after (guest):
$ cpuid -l 0x80000021 -1 -r
0x80000021 0x00: eax=0x18000045 ebx=0x00000000 ecx=0x00000000 edx=0x00000000
^
$ cat /sys/devices/system/cpu/vulnerabilities/spec_rstack_overflow
Mitigation: Safe RET
Reported-by: Fabian Vogt <fvogt@suse.de>
Link: https://www.amd.com/content/dam/amd/en/documents/corporate/cr/speculative-return-stack-overflow-whitepaper.pdf
Signed-off-by: Fabiano Rosas <farosas@suse.de>
Link: https://lore.kernel.org/r/20240805202041.5936-1-farosas@suse.de
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
identity_base variable is first initialzied to address 0xfffbc000 and then
kvm_vm_set_identity_map_addr() overrides this value to address 0xfeffc000.
The initial address to which the variable was initialized was never used. Clean
everything up, placing 0xfeffc000 in a preprocessor constant.
Reported-by: Ani Sinha <anisinha@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
kvm_arch_init() enables a lot of vm capabilities. Refactor them into separate
smaller functions. Energy MSR related operations also moved to its own
function. There should be no functional impact.
Signed-off-by: Ani Sinha <anisinha@redhat.com>
Link: https://lore.kernel.org/r/20240903124143.39345-2-anisinha@redhat.com
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Nothing in fw_cfg.c requires target-specific knowledge,
build it once for the 4 MIPS variants.
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Michael Tokarev <mjt@tls.msk.ru>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
The cris target has recently been removed (see commit 44e4075bf4 -
"target/cris: Remove the deprecated CRIS target"), but apparently this
line has been forgotten. So clean it up now.
Signed-off-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Michael Tokarev <mjt@tls.msk.ru>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
blk_by_public last use was removed in 2017 by
c61791fc23 ("block: add aio_context field in ThrottleGroupMember")
blk_activate last use was removed earlier this year by
eef0bae3a7 ("migration: Remove block migration")
blk_add_insert_bs_notifier, blk_op_block_all, blk_op_unblock_all
last uses were removed in 2016 by
ef8875b549 ("virtio-scsi: Remove op blocker for dataplane")
blk_iostatus_disable last use was removed in 2016 by
66a0fae438 ("blockjob: Don't touch BDS iostatus")
Remove them.
Signed-off-by: Dr. David Alan Gilbert <dave@treblig.org>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Michael Tokarev <mjt@tls.msk.ru>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
rocker_fp_ports hasn't been used since it was added back in 2015.
Remove it.
Signed-off-by: Dr. David Alan Gilbert <dave@treblig.org>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Michael Tokarev <mjt@tls.msk.ru>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
pcie_chassis_find_slot has been unused since it was added.
Remove it.
Signed-off-by: Dr. David Alan Gilbert <dave@treblig.org>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Michael Tokarev <mjt@tls.msk.ru>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
replay_disable_events has been unused since 2019's
c8aa7895eb ("replay: don't drain/flush bdrv queue while RR is working")
Remove it.
Signed-off-by: Dr. David Alan Gilbert <dave@treblig.org>
Reviewed-by: Pavel Dovgalyuk <pavel.dovgalyuk@ispras.ru>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Michael Tokarev <mjt@tls.msk.ru>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
remote_iohub_finalize has never been used.
Remove it.
Signed-off-by: Dr. David Alan Gilbert <dave@treblig.org>
Reviewed-by: Jagannathan Raman <jag.raman@oracle.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Michael Tokarev <mjt@tls.msk.ru>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
vhost_dev_load_inflight and vhost_dev_save_inflight have been
unused since they were added in 2019 by:
5ad204bf2a ("vhost-user: Support transferring inflight buffer between qemu and backend")
Remove them, and their helper vhost_dev_resize_inflight.
Signed-off-by: Dr. David Alan Gilbert <dave@treblig.org>
Reviewed-by: Igor Mammedov <imammedo@redhat.com>
Reviewed-by: Stefano Garzarella <sgarzare@redhat.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Michael Tokarev <mjt@tls.msk.ru>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
cursor_get_mono_image has been unused since 2018's
0015ca5cba ("ui: remove support for SDL1.2 in favour of SDL2")
Remove it.
Signed-off-by: Dr. David Alan Gilbert <dave@treblig.org>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Michael Tokarev <mjt@tls.msk.ru>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
fw_cfg_init_io has been unused since
918a7f706b ("i386: load kernel on xen using DMA")
Remove it.
Signed-off-by: Dr. David Alan Gilbert <dave@treblig.org>
Reviewed-by: Igor Mammedov <imammedo@redhat.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Michael Tokarev <mjt@tls.msk.ru>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
handle_vm86_fault has been unused since:
1ade5b2fed ("linux-user/i386: Split out maybe_handle_vm86_trap")
Remove it, and it's local macros.
Signed-off-by: Dr. David Alan Gilbert <dave@treblig.org>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Michael Tokarev <mjt@tls.msk.ru>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
serial_set_frequnecy has been unused since it was added in 2009:
038eaf82c8 ("serial: Add interface to set reference oscillator frequency")
It looks like the 'baudbase' is now a property anyway so the wrapper
isn't needed.
Remove it.
Signed-off-by: Dr. David Alan Gilbert <dave@treblig.org>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Michael Tokarev <mjt@tls.msk.ru>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
net_rx_pkt_get_l3_hdr_offset and net_rx_pkt_get_iovec_len haven't
been used since they were added.
Remove them.
Signed-off-by: Dr. David Alan Gilbert <dave@treblig.org>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Michael Tokarev <mjt@tls.msk.ru>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
(Mjt: also removed net_rx_pkt_get_l3_hdr_offset prototype from hw/net/net_rx_pkt.h as suggested by Akihiko Odaki)
net_hub_port_find is unused since 2018's commit
af1a5c3eb4 ("net: Remove the deprecated "vlan" parameter")
qemu_receive_packet_iov is unused since commit
ffbd2dbd8e ("e1000e: Perform software segmentation for loopback")
in turn it was the last user of qemu_net_queue_receive_iov.
Remove them.
Signed-off-by: Dr. David Alan Gilbert <dave@treblig.org>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Michael Tokarev <mjt@tls.msk.ru>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
mch_mcfg_base has been unused since it was added by
6f1426ab0f ("ich9: APIs for pc guest info")
back in 2013.
Remove it.
Signed-off-by: Dr. David Alan Gilbert <dave@treblig.org>
Reviewed-by: Bernhard Beschow <shentey@gmail.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Michael Tokarev <mjt@tls.msk.ru>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
xen_be_copy_grant_refs is unused since 2019's
19f87870ba ("xen: remove the legacy 'xen_disk' backend")
xen_config_dev_console is unused since 2018's
6d7c06c213 ("Remove broken Xen PV domain builder")
Remove them.
Signed-off-by: Dr. David Alan Gilbert <dave@treblig.org>
Acked-by: Anthony PERARD <anthony.perard@vates.tech>
Reviewed-by: Edgar E. Iglesias <edgar.iglesias@amd.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Michael Tokarev <mjt@tls.msk.ru>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
The file has been removed by c52e405968
("linux-user,loongarch: move to syscalltbl file").
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
Since commit e99441a379 ("ui/curses: Do not use console_select()")
qemu_text_console_put_keysym() no longer checks for NULL console
argument, which leads to a later crash:
Thread 1 "qemu-system-x86" received signal SIGSEGV, Segmentation fault.
0x00005555559ee186 in qemu_text_console_handle_keysym (s=0x0, keysym=31) at ../ui/console-vc.c:332
332 } else if (s->echo && (keysym == '\r' || keysym == '\n')) {
(gdb) bt
#0 0x00005555559ee186 in qemu_text_console_handle_keysym (s=0x0, keysym=31) at ../ui/console-vc.c:332
#1 0x00005555559e18e5 in qemu_text_console_put_keysym (s=<optimized out>, keysym=<optimized out>) at ../ui/console.c:303
#2 0x00005555559f2e88 in do_key_event (vs=vs@entry=0x5555579045c0, down=down@entry=1, keycode=keycode@entry=60, sym=sym@entry=65471) at ../ui/vnc.c:2034
#3 0x00005555559f845c in ext_key_event (vs=0x5555579045c0, down=1, sym=65471, keycode=<optimized out>) at ../ui/vnc.c:2070
#4 protocol_client_msg (vs=0x5555579045c0, data=<optimized out>, len=<optimized out>) at ../ui/vnc.c:2514
#5 0x00005555559f515c in vnc_client_read (vs=0x5555579045c0) at ../ui/vnc.c:1607
Fixes: e99441a379 ("ui/curses: Do not use console_select()")
Fixes: https://issues.redhat.com/browse/RHEL-50529
Cc: qemu-stable@nongnu.org
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Akihiko Odaki <akihiko.odaki@daynix.com>
Reviewed-by: Michael Tokarev <mjt@tls.msk.ru>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
Commit 2523baf7fb ("qemu-keymap: Make references to allocations
static") made references to allocations static to ensure LeakSanitizer
can track them. This trick unfortunately did not work with gcc version
14.0.1; that compiler is clever enough to know that the value of the
"state" variable is only referred in the current execution of the
function and to put it on the stack.
Release references to allocations and suppress the error once for all.
Signed-off-by: Akihiko Odaki <akihiko.odaki@daynix.com>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Michael Tokarev <mjt@tls.msk.ru>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
We were including the "exec/tswap.h" header to get
target_words_bigendian() declaration, but since commit a276ec8e26
("hw/audio/virtio-snd: Always use little endian audio format")
removed this method call, we don't need this header anymore.
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Manos Pitsidianakis <manos.pitsidianakis@linaro.org>
Reviewed-by: Michael Tokarev <mjt@tls.msk.ru>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
xen_be_copy_grant_refs is unused since 2019's
19f87870ba ("xen: remove the legacy 'xen_disk' backend")
xen_config_dev_console is unused since 2018's
6d7c06c213 ("Remove broken Xen PV domain builder")
Remove them.
Signed-off-by: Dr. David Alan Gilbert <dave@treblig.org>
Acked-by: Anthony PERARD <anthony.perard@vates.tech>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Edgar E. Iglesias <edgar.iglesias@amd.com>
Signed-off-by: Edgar E. Iglesias <edgar.iglesias@amd.com>
* Add a property to set vl to ceil(AVL/2)
* Enable numamem testing for RISC-V
* Consider MISA bit choice in implied rule
* Fix the za64rs priv spec requirements
* Enable Bit Manip for OpenTitan Ibex CPU
* Fix the group bit setting of AIA with KVM
* Stop timer with infinite timecmp
* Add 'fcsr' register to QEMU log as a part of F extension
* Fix riscv64 build on musl libc
* Add preliminary textra trigger CSR functions
* RISC-V bsd-user support
* Respect firmware ELF entry point
* Add Svvptc extension support
* Fix masking of rv32 physical address
* Fix linking problem with semihosting disabled
* Fix IMSIC interrupt state updates
-----BEGIN PGP SIGNATURE-----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=15Hm
-----END PGP SIGNATURE-----
Merge tag 'pull-riscv-to-apply-20241002' of https://github.com/alistair23/qemu into staging
RISC-V PR for 9.2
* Add a property to set vl to ceil(AVL/2)
* Enable numamem testing for RISC-V
* Consider MISA bit choice in implied rule
* Fix the za64rs priv spec requirements
* Enable Bit Manip for OpenTitan Ibex CPU
* Fix the group bit setting of AIA with KVM
* Stop timer with infinite timecmp
* Add 'fcsr' register to QEMU log as a part of F extension
* Fix riscv64 build on musl libc
* Add preliminary textra trigger CSR functions
* RISC-V bsd-user support
* Respect firmware ELF entry point
* Add Svvptc extension support
* Fix masking of rv32 physical address
* Fix linking problem with semihosting disabled
* Fix IMSIC interrupt state updates
# -----BEGIN PGP SIGNATURE-----
#
# iQIzBAABCAAdFiEEaukCtqfKh31tZZKWr3yVEwxTgBMFAmb83lYACgkQr3yVEwxT
# gBNndBAAmh66yWt9TeTHlQ/rgBhx2nUMBbfICBWQyNGvPlslffwrNoLkh8jpkuiP
# PD0RQArAAGeM09cgCZCu14JzIBmmNiGgUxsUnqOZvUw18uIlLFlpt/tiT7iGw/Xb
# pfI7waF66/FPXBErY2yiw9/RGQLlkiGNBC9FNYrD/kCahf9MSIobv85tOgSQ2qjH
# nOJ+UBN0TQ1x0Z5lJMj9Pzl1WDvelRnCkYI5nXg1heKG73Hm7GmHt99QpTV2Okqn
# T3jFzEfMTQeHO4nC/X2pbaesE62K+mTg/FZpId2iV8lMCSm1zKof+xJ4boKM9RB2
# 0HjXAT+MveLuLUNtgfbV9C+VgU25M+wnfy5tH0l801Y/Gez8Q1fbK2uykuiyiUSy
# MNNk/KzmOYuffwItuyeL3mmWHXsN+izUIeMmMxfL9X9nssZXRsrDXc+MByS7w0fk
# QOeZmXHTxXwxFymr0t0DLK2eKEG6cqQty1KWp6iLx3uwnMTGo+576P41Q+boj64s
# VllWzmuR0Ta0xuSR4sDvEFCO7OCFEgVdn1j0FvhRFskPEDrbQgXRLq8i3awtU6z1
# NIh+A30XeK+EZLv0sEje6gav5lZHWMfAeCOKJstVzOl8+NQibuKTUrsqLgTrBK6K
# plw8qwvZYjSnYErzHfywlq9ArufIvOHYcx9Nb76tLNy9E+y01yo=
# =15Hm
# -----END PGP SIGNATURE-----
# gpg: Signature made Wed 02 Oct 2024 06:47:02 BST
# gpg: using RSA key 6AE902B6A7CA877D6D659296AF7C95130C538013
# gpg: Good signature from "Alistair Francis <alistair@alistair23.me>" [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: 6AE9 02B6 A7CA 877D 6D65 9296 AF7C 9513 0C53 8013
* tag 'pull-riscv-to-apply-20241002' of https://github.com/alistair23/qemu: (35 commits)
bsd-user: Add RISC-V 64-bit Target Configuration and Debug XML Files
bsd-user: Implement set_mcontext and get_ucontext_sigreturn for RISCV
bsd-user: Implement 'get_mcontext' for RISC-V
bsd-user: Implement RISC-V signal trampoline setup functions
bsd-user: Define RISC-V signal handling structures and constants
bsd-user: Add generic RISC-V64 target definitions
bsd-user: Define RISC-V system call structures and constants
bsd-user: Define RISC-V VM parameters and helper functions
bsd-user: Add RISC-V thread setup and initialization support
bsd-user: Implement RISC-V sysarch system call emulation
bsd-user: Add RISC-V signal trampoline setup function
bsd-user: Define RISC-V register structures and register copying
bsd-user: Add RISC-V ELF definitions and hardware capability detection
bsd-user: Implement RISC-V TLS register setup
bsd-user: Implement RISC-V CPU register cloning and reset functions
bsd-user: Add RISC-V CPU execution loop and syscall handling
bsd-user: Implement RISC-V CPU initialization and main loop
hw/intc: riscv-imsic: Fix interrupt state updates.
target/riscv/cpu_helper: Fix linking problem with semihosting disabled
target/riscv32: Fix masking of physical address
...
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
object_resolve_path_type() sets *ambiguousp only when it is.
Fixes: 81c48dd796 (hw/i386/acpi: Add object_resolve_type_unambiguous to improve modularity)
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@yandex-team.ru>
../fsdev/9p-iov-marshal.c:93:23: error: ‘val’ may be used uninitialized [-Werror=maybe-uninitialized]
and similar
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Christian Schoenebeck <qemu_oss@crudebyte.com>
vhost_svq_get_buf() may return a VirtQueueElement that should be freed.
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Eugenio Pérez <eperezma@redhat.com>
../hw/virtio/vhost-shadow-virtqueue.c:545:13: error: ‘r’ may be used uninitialized [-Werror=maybe-uninitialized]
Set `r` to 0 at every loop, since we don't check vhost_svq_get_buf()
return value.
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Stefano Garzarella <sgarzare@redhat.com>
../tests/unit/test-block-iothread.c:773:17: error: ‘job’ may be used uninitialized [-Werror=maybe-uninitialized]
/usr/include/glib-2.0/glib/gtestutils.h:73:53: error: ‘ret’ may be used uninitialized [-Werror=maybe-uninitialized]
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@yandex-team.ru>
../linux-user/hppa/cpu_loop.c: In function ‘hppa_lws’:
../linux-user/hppa/cpu_loop.c:106:17: error: ‘ret’ may be used uninitialized [-Werror=maybe-uninitialized]
106 | env->gr[28] = ret;
Add g_assert_not_reached() to help compiler, as suggested by Laurent.
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Laurent Vivier <laurent@vivier.eu>
../migration/ram.c:1873:23: error: ‘dirty’ may be used uninitialized [-Werror=maybe-uninitialized]
When 'block' != NULL, 'dirty' is initialized.
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Acked-by: Peter Xu <peterx@redhat.com>
../hw/block/virtio-blk.c:1212:12: error: ‘rq’ may be used uninitialized [-Werror=maybe-uninitialized]
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Stefano Garzarella <sgarzare@redhat.com>
../migration/dirtyrate.c:186:5: error: ‘records’ may be used uninitialized [-Werror=maybe-uninitialized]
../migration/dirtyrate.c:168:12: error: ‘gen_id’ may be used uninitialized [-Werror=maybe-uninitialized]
../migration/migration.c:2273:5: error: ‘file’ may be used uninitialized [-Werror=maybe-uninitialized]
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Acked-by: Peter Xu <peterx@redhat.com>
Reviewed-by: Hyman Huang <yong.huang@smartx.com>
../block/block-copy.c:591:12: error: ‘ret’ may be used uninitialized [-Werror=maybe-uninitialized]
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@yandex-team.ru>
../hw/sd/sdhci.c:846:16: error: ‘res’ may be used uninitialized [-Werror=maybe-uninitialized]
False-positive, because "length" is non-null.
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
../hw/scsi/vhost-scsi.c:173:12: error: ‘ret’ may be used uninitialized [-Werror=maybe-uninitialized]
It can be reached when num_queues=0. It probably doesn't make much sense
to instantiate a vhost-scsi with 0 IO queues though. For now, make
vhost_scsi_set_workers() return success/0 anyway, when no workers have
been setup.
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Stefano Garzarella <sgarzare@redhat.com>
../block/stream.c:193:19: error: ‘unfiltered_bs’ may be used uninitialized [-Werror=maybe-uninitialized]
../block/stream.c:176:5: error: ‘len’ may be used uninitialized [-Werror=maybe-uninitialized]
trace/trace-block.h:906:9: error: ‘ret’ may be used uninitialized [-Werror=maybe-uninitialized]
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Acked-by: Vladimir Sementsov-Ogievskiy <vsementsov@yandex-team.ru>
Reviewed-by: Manos Pitsidianakis <manos.pitsidianakis@linaro.org>
../block/mirror.c:404:5: error: ‘ret’ may be used uninitialized [-Werror=maybe-uninitialized]
../block/mirror.c:895:12: error: ‘ret’ may be used uninitialized [-Werror=maybe-uninitialized]
../block/mirror.c:578:12: error: ‘ret’ may be used uninitialized [-Werror=maybe-uninitialized]
Change a variable to int, as suggested by Manos: "bdrv_co_preadv()
which is int and is passed as an int argument to mirror_read_complete()"
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@yandex-team.ru>
../block/mirror.c:1066:22: error: ‘iostatus’ may be used uninitialized [-Werror=maybe-uninitialized]
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@yandex-team.ru>
../nbd/client-connection.c:419:8: error: ‘wait_co’ may be used uninitialized [-Werror=maybe-uninitialized]
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
../hw/display/qxl.c:1352:5: error: ‘pci_region’ may be used uninitialized [-Werror=maybe-uninitialized]
../hw/display/qxl.c:1365:22: error: ‘pci_start’ may be used uninitialized [-Werror=maybe-uninitialized]
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Manos Pitsidianakis <manos.pitsidianakis@linaro.org>