Move code to stuff vmcb->save.dr6 to its architectural init value from
svm_vcpu_reset() into sev_es_sync_vmsa(). Except for protected guests,
a.k.a. SEV-ES guests, vmcb->save.dr6 is set during VM-Enter, i.e. the
extra write is unnecessary. For SEV-ES, stuffing save->dr6 handles a
theoretical case where the VMSA could be encrypted before the first
KVM_RUN.
Signed-off-by: Sean Christopherson <seanjc@google.com>
Message-Id: <
20210713163324.627647-33-seanjc@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
save->xcr0 = svm->vcpu.arch.xcr0;
save->pkru = svm->vcpu.arch.pkru;
save->xss = svm->vcpu.arch.ia32_xss;
+ save->dr6 = svm->vcpu.arch.dr6;
/*
* SEV-ES will use a VMSA that is pointed to by the VMCB, not
svm_set_cr0(vcpu, X86_CR0_NW | X86_CR0_CD | X86_CR0_ET);
svm_set_cr4(vcpu, 0);
svm_set_efer(vcpu, 0);
- save->dr6 = 0xffff0ff0;
kvm_set_rflags(vcpu, X86_EFLAGS_FIXED);
vcpu->arch.regs[VCPU_REGS_RIP] = 0x0000fff0;