From: Alexander Graf <agraf@suse.de>
Date: Thu, 16 Feb 2012 15:04:54 +0000 (+0000)
Subject: KVM: PPC: bookehv: add comment about shadow_msr
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=5fd8505ea4b7456d57eacefbf00b669f15f5f0c0;p=GitHub%2Fexynos8895%2Fandroid_kernel_samsung_universal8895.git

KVM: PPC: bookehv: add comment about shadow_msr

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>
---

diff --git a/arch/powerpc/include/asm/kvm_host.h b/arch/powerpc/include/asm/kvm_host.h
index e645623728fc..97ecdaf82956 100644
--- a/arch/powerpc/include/asm/kvm_host.h
+++ b/arch/powerpc/include/asm/kvm_host.h
@@ -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;