iv/linux
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity
linux/tools
History
Andrei Vagin 4ef616730a selftests: kvm: set rax before vmcall 
[ Upstream commit 281106f938d3daaea6f8b6723a8217a2a1ef6936 ]

kvm_hypercall has to place the hypercall number in rax.

Trace events show that kvm_pv_test doesn't work properly:
     kvm_pv_test-53132: kvm_hypercall: nr 0x0 a0 0x0 a1 0x0 a2 0x0 a3 0x0
     kvm_pv_test-53132: kvm_hypercall: nr 0x0 a0 0x0 a1 0x0 a2 0x0 a3 0x0
     kvm_pv_test-53132: kvm_hypercall: nr 0x0 a0 0x0 a1 0x0 a2 0x0 a3 0x0

With this change, it starts working as expected:
     kvm_pv_test-54285: kvm_hypercall: nr 0x5 a0 0x0 a1 0x0 a2 0x0 a3 0x0
     kvm_pv_test-54285: kvm_hypercall: nr 0xa a0 0x0 a1 0x0 a2 0x0 a3 0x0
     kvm_pv_test-54285: kvm_hypercall: nr 0xb a0 0x0 a1 0x0 a2 0x0 a3 0x0

Signed-off-by: Andrei Vagin <avagin@google.com>
Message-Id: <20220722230241.1944655-5-avagin@google.com>
Fixes: ac4a4d6de22e ("selftests: kvm: test enforcement of paravirtual cpuid features")
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2022-08-17 15:15:41 +02:00
..
accounting
delayacct: track delays from write-protect copy
2022-06-01 15:55:25 -07:00
arch
x86/speculation: Add RSB VM Exit protections
2022-08-11 13:22:05 +02:00
bootconfig
…
bpf
bpftool: Use sysfs vmlinux when dumping BTF by ID
2022-05-13 16:07:53 -07:00
build
perf build: Stop using __weak bpf_map_create() to handle older libbpf versions
2022-05-26 12:36:56 -03:00
certs
tools/certs: Add print-cert-tbs-hash.sh
2022-05-23 18:47:49 +03:00
cgroup
tools/cgroup/slabinfo: update to work with struct slab
2022-02-21 11:34:49 +01:00
counter
kbuild: replace $(if A,A,B) with $(or A,B)
2022-02-15 12:25:56 +09:00
debugging
…
edid
…
firewire
…
firmware
…
gpio
tools: gpio: Add new hardware clock type
2022-05-04 11:06:14 +02:00
hv
kbuild: replace $(if A,A,B) with $(or A,B)
2022-02-15 12:25:56 +09:00
iio
Kbuild updates for v5.18
2022-03-31 11:59:03 -07:00
include
asm-generic fixes for 5.19, part 2
2022-07-27 09:50:18 -07:00
io_uring
…
kvm/kvm_stat
tools/kvm_stat: fix display of error when multiple processes are found
2022-06-15 08:14:20 -04:00
laptop
…
leds
…
lib
libbpf: Fix str_has_sfx()'s return value
2022-08-17 15:14:53 +02:00
memory-model
tools/memory-model/README: Update klitmus7 compat table
2022-05-03 10:12:48 -07:00
objtool
Just when you thought that all the speculation bugs were addressed and
2022-07-11 18:15:25 -07:00
pci
kbuild: replace $(if A,A,B) with $(or A,B)
2022-02-15 12:25:56 +09:00
pcmcia
…
perf
perf bpf: Remove undefined behavior from bpf_perf_object__next()
2022-07-27 11:19:39 -03:00
power
tools/power/x86/intel-speed-select: Fix off by one check
2022-08-17 15:15:39 +02:00
rcu
…
scripts
Kbuild updates for v5.18
2022-03-31 11:59:03 -07:00
spi
kbuild: replace $(if A,A,B) with $(or A,B)
2022-02-15 12:25:56 +09:00
testing
selftests: kvm: set rax before vmcall
2022-08-17 15:15:41 +02:00
thermal
thermal/tools/tmon: Include pthread and time headers in tmon.h
2022-08-17 15:14:21 +02:00
time
…
tracing
rtla: Fix double free
2022-08-17 15:15:40 +02:00
usb
testusb: Fix warning comparing pointer to 0
2022-04-26 13:32:49 +02:00
virtio
tools/virtio: compile with -pthread
2022-03-28 16:52:59 -04:00
vm
tools/vm/slabinfo: Handle files in debugfs
2022-08-11 13:22:02 +02:00
wmi
…
Makefile
Thermal control updates for 5.19-rc1
2022-05-24 16:19:30 -07:00