KVM: SVM: keep DR6 synchronized with vcpu->arch.dr6

Browse source

kvm_x86_ops.set_dr6 is only ever called with vcpu->arch.dr6 as the
second argument.  Ensure that the VMCB value is synchronized to
vcpu->arch.dr6 on #DB (both "normal" and nested) and nested vmentry, so
that the current value of DR6 is always available in vcpu->arch.dr6.
The get_dr6 callback can just access vcpu->arch.dr6 and becomes redundant.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

...

This commit is contained in:

Paolo Bonzini 2020-05-04 11:28:25 -04:00

parent 2c19dba680

commit 5679b803e4

5 changed files with 21 additions and 28 deletions

Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL

Download patch file Download diff file Expand all files Collapse all files

2

arch/x86/include/asm/kvm_host.h

View file

24

arch/x86/kvm/svm/nested.c

View file

9

arch/x86/kvm/svm/svm.c

View file

6

arch/x86/kvm/vmx/vmx.c

View file

8

arch/x86/kvm/x86.c

View file