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KVM: PPC: bookehv: add comment about shadow_msr

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For BookE HV the guest visible MSR is shared->msr and is identical to
the MSR that is in use while the guest is running, because we can't trap
reads from/to MSR.

So shadow_msr is unused there. Indicate that with a comment.

Signed-off-by: Alexander Graf <agraf@suse.de>
Signed-off-by: Avi Kivity <avi@redhat.com>
This commit is contained in:
Alexander Graf 2012-02-16 15:04:54 +00:00 committed by Avi Kivity
parent e9ba39c1f3
commit 5fd8505ea4
1 changed files with 1 additions and 0 deletions
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arch/powerpc/include/asm/kvm_host.h
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@ -386,6 +386,7 @@ struct kvm_vcpu_arch {
#endif
u32 vrsave; /* also USPRG0 */
u32 mmucr;
/* shadow_msr is unused for BookE HV */
ulong shadow_msr;
ulong csrr0;
ulong csrr1;