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authorAlexander Graf <agraf@suse.de>2010-07-29 14:47:46 +0200
committerAvi Kivity <avi@redhat.com>2010-10-24 10:50:45 +0200
commitde7906c36ca1e22a3e3600e95c6a4e2c1e4e2e9c (patch)
treeb7cdfc56e7b9bc66e2a30bda5fb71f975b44de2e /arch/powerpc/include/asm/kvm_para.h
parent5e030186dfc4e4e47c84d2557b17e4aa06c76f96 (diff)
downloadop-kernel-dev-de7906c36ca1e22a3e3600e95c6a4e2c1e4e2e9c.zip
op-kernel-dev-de7906c36ca1e22a3e3600e95c6a4e2c1e4e2e9c.tar.gz
KVM: PPC: Convert SRR0 and SRR1 to shared page
The SRR0 and SRR1 registers contain cached values of the PC and MSR respectively. They get written to by the hypervisor when an interrupt occurs or directly by the kernel. They are also used to tell the rfi(d) instruction where to jump to. Because it only gets touched on defined events that, it's very simple to share with the guest. Hypervisor and guest both have full r/w access. This patch converts all users of the current field to the shared page. Signed-off-by: Alexander Graf <agraf@suse.de> Signed-off-by: Avi Kivity <avi@redhat.com>
Diffstat (limited to 'arch/powerpc/include/asm/kvm_para.h')
-rw-r--r--arch/powerpc/include/asm/kvm_para.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/arch/powerpc/include/asm/kvm_para.h b/arch/powerpc/include/asm/kvm_para.h
index ec72a1c..d7fc6c2 100644
--- a/arch/powerpc/include/asm/kvm_para.h
+++ b/arch/powerpc/include/asm/kvm_para.h
@@ -23,6 +23,8 @@
#include <linux/types.h>
struct kvm_vcpu_arch_shared {
+ __u64 srr0;
+ __u64 srr1;
__u64 dar;
__u64 msr;
__u32 dsisr;
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