Skip to content
New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Jump to bottom

hv: fix using cpuid does not clear the upper 32-bit registers. #8610

Merged
merged 1 commit into from
Jun 19, 2024
Merged

hv: fix using cpuid does not clear the upper 32-bit registers. #8610

Changes from all commits
Commits
Show all changes
1 commit
Select commit
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Jump to
Jump to file
Failed to load files.
Diff view
Diff view
25 changes: 12 additions & 13 deletions hypervisor/arch/x86/guest/vmexit.c
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -354,19 +354,18 @@ static int32_t hlt_vmexit_handler(struct acrn_vcpu *vcpu)

int32_t cpuid_vmexit_handler(struct acrn_vcpu *vcpu)
{
uint64_t rax, rbx, rcx, rdx;

rax = vcpu_get_gpreg(vcpu, CPU_REG_RAX);
rbx = vcpu_get_gpreg(vcpu, CPU_REG_RBX);
rcx = vcpu_get_gpreg(vcpu, CPU_REG_RCX);
rdx = vcpu_get_gpreg(vcpu, CPU_REG_RDX);
TRACE_2L(TRACE_VMEXIT_CPUID, rax, rcx);
guest_cpuid(vcpu, (uint32_t *)&rax, (uint32_t *)&rbx,
(uint32_t *)&rcx, (uint32_t *)&rdx);
vcpu_set_gpreg(vcpu, CPU_REG_RAX, rax);
vcpu_set_gpreg(vcpu, CPU_REG_RBX, rbx);
vcpu_set_gpreg(vcpu, CPU_REG_RCX, rcx);
vcpu_set_gpreg(vcpu, CPU_REG_RDX, rdx);
uint32_t eax, ebx, ecx, edx;

eax = (uint32_t)vcpu_get_gpreg(vcpu, CPU_REG_RAX);
ebx = (uint32_t)vcpu_get_gpreg(vcpu, CPU_REG_RBX);
ecx = (uint32_t)vcpu_get_gpreg(vcpu, CPU_REG_RCX);
edx = (uint32_t)vcpu_get_gpreg(vcpu, CPU_REG_RDX);
TRACE_2L(TRACE_VMEXIT_CPUID, (uint64_t)eax, (uint64_t)ecx);
guest_cpuid(vcpu, &eax, &ebx, &ecx, &edx);
vcpu_set_gpreg(vcpu, CPU_REG_RAX, (uint64_t)eax);
vcpu_set_gpreg(vcpu, CPU_REG_RBX, (uint64_t)ebx);
vcpu_set_gpreg(vcpu, CPU_REG_RCX, (uint64_t)ecx);
vcpu_set_gpreg(vcpu, CPU_REG_RDX, (uint64_t)edx);

return 0;
}
Expand Down