tree cc54b20e91a008463389cb74b4e4dd02252ee29a
parent 0e0fee5c539b61fdd098332e0e2cc375d9073706
author Jim Mattson <jmattson@google.com> 1527008060 -0700
committer Paolo Bonzini <pbonzini@redhat.com> 1543319442 +0100

kvm: svm: Ensure an IBPB on all affected CPUs when freeing a vmcb

Previously, we only called indirect_branch_prediction_barrier on the
logical CPU that freed a vmcb. This function should be called on all
logical CPUs that last loaded the vmcb in question.

Fixes: 15d45071523d ("KVM/x86: Add IBPB support")
Reported-by: Neel Natu <neelnatu@google.com>
Signed-off-by: Jim Mattson <jmattson@google.com>
Reviewed-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Cc: stable@vger.kernel.org
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>