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(parent: 2c19dba) | patch
KVM: SVM: keep DR6 synchronized with vcpu->arch.dr6
authorPaolo Bonzini <pbonzini@redhat.com>
Mon, 4 May 2020 15:28:25 +0000 (11:28 -0400)
committerPaolo Bonzini <pbonzini@redhat.com>
Fri, 8 May 2020 11:43:47 +0000 (07:43 -0400)
commit5679b803e44ed8947e8c2a7f44cdef1d93ea24d5
tree1cecb32b31bc5911feca9f5cef5785e7544fc31dtree | snapshot
parent2c19dba6803bfeb694da0b0b50e788b77a37fe75commit | diff
KVM: SVM: keep DR6 synchronized with vcpu->arch.dr6

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>
arch/x86/include/asm/kvm_host.h diff | blob | blame | history
arch/x86/kvm/svm/nested.c diff | blob | blame | history
arch/x86/kvm/svm/svm.c diff | blob | blame | history
arch/x86/kvm/vmx/vmx.c diff | blob | blame | history
arch/x86/kvm/x86.c diff | blob | blame | history
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