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authorAlexander Graf <agraf@suse.de>2010-07-29 14:47:42 +0200
committerAvi Kivity <avi@redhat.com>2010-10-24 10:50:42 +0200
commit96bc451a153297bf1f99ef2d633d512ea349ae7a (patch)
tree75ab4d40387ea1295a23b180e4c8719ce7053d00 /arch/powerpc/kernel
parent34698d8c61bd3fc86b2e99c3d1ad9ef140b3eb0d (diff)
KVM: PPC: Introduce shared page
For transparent variable sharing between the hypervisor and guest, I introduce a shared page. This shared page will contain all the registers the guest can read and write safely without exiting guest context. This patch only implements the stubs required for the basic structure of the shared page. The actual register moving follows. Signed-off-by: Alexander Graf <agraf@suse.de> Signed-off-by: Avi Kivity <avi@redhat.com>
Diffstat (limited to 'arch/powerpc/kernel')
-rw-r--r--arch/powerpc/kernel/asm-offsets.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/powerpc/kernel/asm-offsets.c b/arch/powerpc/kernel/asm-offsets.c
index 1c0607ddccc0..60e7db4c13af 100644
--- a/arch/powerpc/kernel/asm-offsets.c
+++ b/arch/powerpc/kernel/asm-offsets.c
@@ -400,6 +400,7 @@ int main(void)
DEFINE(VCPU_SPRG6, offsetof(struct kvm_vcpu, arch.sprg6));
DEFINE(VCPU_SPRG7, offsetof(struct kvm_vcpu, arch.sprg7));
DEFINE(VCPU_SHADOW_PID, offsetof(struct kvm_vcpu, arch.shadow_pid));
+ DEFINE(VCPU_SHARED, offsetof(struct kvm_vcpu, arch.shared));
/* book3s */
#ifdef CONFIG_PPC_BOOK3S