tree 7ff7d29e43699f2a797ed26cdb9e0115dafe9b29
parent 74a66858359f459ed52bc4565c42839f2a8da1a7
author Jim Mattson <jmattson@google.com> 1603991424 -0700
committer Paolo Bonzini <pbonzini@redhat.com> 1605806815 -0500

x86: svm: Add test for L2 change of CR4.OSXSAVE

If L1 allows L2 to modify CR4.OSXSAVE, then L0 kvm recalculates the
guest's CPUID.01H:ECX.OSXSAVE bit when the L2 guest changes
CR4.OSXSAVE via MOV-to-CR4. Verify that kvm also recalculates this
CPUID bit when loading L1's CR4 from the save.cr4 field of the
hsave area.

Signed-off-by: Jim Mattson <jmattson@google.com>
Reviewed-by: Ricardo Koller <ricarkol@google.com>
Reviewed-by: Peter Shier <pshier@google.com>
Message-Id: <20201029171024.486256-2-jmattson@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>