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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/kvm/booke_emulate.c
parentKVM: PPC: Convert DAR to shared page. (diff)
downloadlinux-de7906c36ca1e22a3e3600e95c6a4e2c1e4e2e9c.tar.xz
linux-de7906c36ca1e22a3e3600e95c6a4e2c1e4e2e9c.zip
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/kvm/booke_emulate.c')
-rw-r--r--arch/powerpc/kvm/booke_emulate.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/arch/powerpc/kvm/booke_emulate.c b/arch/powerpc/kvm/booke_emulate.c
index 51ef4539ed51..1260f5f24c0c 100644
--- a/arch/powerpc/kvm/booke_emulate.c
+++ b/arch/powerpc/kvm/booke_emulate.c
@@ -31,8 +31,8 @@
static void kvmppc_emul_rfi(struct kvm_vcpu *vcpu)
{
- vcpu->arch.pc = vcpu->arch.srr0;
- kvmppc_set_msr(vcpu, vcpu->arch.srr1);
+ vcpu->arch.pc = vcpu->arch.shared->srr0;
+ kvmppc_set_msr(vcpu, vcpu->arch.shared->srr1);
}
int kvmppc_booke_emulate_op(struct kvm_run *run, struct kvm_vcpu *vcpu,