https://bugzilla.kernel.org/show_bug.cgi?id=207551 --- Comment #2 from Sean Christopherson (sean.j.christopherson@xxxxxxxxx) --- Ugh, I forgot much of a trainwreck the inline VM-Enter asm blob was in 4.19. Fixing this isn't nearly as straightforward as it should be, i.e. it'll take a while to get a proper patch sent. In the meantime, you should be able to avoid this by deleting the zeroing of %rcx, e.g. diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c index adccdee76520..79a2b64c5971 100644 --- a/arch/x86/kvm/vmx.c +++ b/arch/x86/kvm/vmx.c @@ -10864,7 +10864,6 @@ static void __noclone vmx_vcpu_run(struct kvm_vcpu *vcpu) "xor %%eax, %%eax \n\t" "xor %%ebx, %%ebx \n\t" - "xor %%ecx, %%ecx \n\t" "xor %%edx, %%edx \n\t" "xor %%esi, %%esi \n\t" "xor %%edi, %%edi \n\t" -- You are receiving this mail because: You are watching the assignee of the bug.