Andrei Vagin 281106f938 selftests: kvm: set rax before vmcall ...

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 <[email protected]>
Message-Id: <[email protected]>
Fixes: ac4a4d6de2 ("selftests: kvm: test enforcement of paravirtual cpuid features")
Signed-off-by: Paolo Bonzini <[email protected]>

2022-08-01 08:43:05 -04:00

..

aarch64

Merge remote-tracking branch 'kvm/next' into kvm-next-5.20

2022-08-01 03:21:00 -04:00

riscv

KVM: selftests: Purge vm+vcpu_id == vcpu silliness

2022-06-11 11:47:22 -04:00

s390x

KVM: selftests: Add kvm_has_cap() to provide syntactic sugar

2022-06-11 11:47:28 -04:00

x86_64

selftests: kvm: set rax before vmcall

2022-08-01 08:43:05 -04:00

assert.c

…

elf.c

KVM: selftests: Get rid of kvm_util_internal.h

2022-06-11 11:46:19 -04:00

guest_modes.c

KVM: selftests: Sanity check input to ioctls() at build time

2022-06-11 11:48:09 -04:00

io.c

…

kvm_util.c

KVM: selftests: Cache CPUID in struct kvm_vcpu

2022-07-13 18:14:15 -07:00

perf_test_util.c

KVM: selftests: Drop @num_percpu_pages from __vm_create_with_vcpus()

2022-06-11 11:47:25 -04:00

rbtree.c

…

sparsebit.c

…

test_util.c

…