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| author | Paolo Bonzini <pbonzini@redhat.com> | 2020-05-20 08:02:17 -0400 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2020-06-20 10:24:11 +0200 |
| commit | 5e9cc6ea67757d1ddfceddd870ea390cb964b841 (patch) | |
| tree | 4a2e909242950d1ab329b3f9ef9eab425d342629 /arch | |
| parent | b8ef2244dfda97fcbaa18f06ed0edc66b7288b03 (diff) | |
| download | linux-5e9cc6ea67757d1ddfceddd870ea390cb964b841.tar.gz linux-5e9cc6ea67757d1ddfceddd870ea390cb964b841.tar.bz2 linux-5e9cc6ea67757d1ddfceddd870ea390cb964b841.zip | |
KVM: nSVM: leave ASID aside in copy_vmcb_control_area
commit 6c0238c4a62b3a0b1201aeb7e33a4636d552a436 upstream.
Restoring the ASID from the hsave area on VMEXIT is wrong, because its
value depends on the handling of TLB flushes. Just skipping the field in
copy_vmcb_control_area will do.
Cc: stable@vger.kernel.org
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/x86/kvm/svm.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/x86/kvm/svm.c b/arch/x86/kvm/svm.c index 1079228e4fef..29078eaf18c9 100644 --- a/arch/x86/kvm/svm.c +++ b/arch/x86/kvm/svm.c @@ -2734,7 +2734,7 @@ static inline void copy_vmcb_control_area(struct vmcb *dst_vmcb, struct vmcb *fr dst->iopm_base_pa = from->iopm_base_pa; dst->msrpm_base_pa = from->msrpm_base_pa; dst->tsc_offset = from->tsc_offset; - dst->asid = from->asid; + /* asid not copied, it is handled manually for svm->vmcb. */ dst->tlb_ctl = from->tlb_ctl; dst->int_ctl = from->int_ctl; dst->int_vector = from->int_vector; |