tree 6c318e8097f35749ce95b53f0a6cdf57bdaae069
parent 1ad32105d78e4b5da60688eca014bcd45271318f
author Maxim Levitsky <mlevitsk@redhat.com> 1631634494 +0300
committer Paolo Bonzini <pbonzini@redhat.com> 1632405929 -0400

KVM: x86: nSVM: test eax for 4K alignment for GP errata workaround

GP SVM errata workaround made the #GP handler always emulate
the SVM instructions.

However these instructions #GP in case the operand is not 4K aligned,
but the workaround code didn't check this and we ended up
emulating these instructions anyway.

This is only an emulation accuracy check bug as there is no harm for
KVM to read/write unaligned vmcb images.

Fixes: 82a11e9c6fa2 ("KVM: SVM: Add emulation support for #GP triggered by SVM instructions")

Signed-off-by: Maxim Levitsky <mlevitsk@redhat.com>
Message-Id: <20210914154825.104886-4-mlevitsk@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>