KVM: PPC: Add support for FPU/Altivec/VSX

When our guest starts using either the FPU, Altivec or VSX we need to make
sure Linux knows about it and sneak into its process switching code
accordingly.

This patch makes accesses to the above parts of the system work inside the
VM.

Signed-off-by: Alexander Graf <agraf@suse.de>
Signed-off-by: Avi Kivity <avi@redhat.com>

1 files changed, 13 insertions, 1 deletions

diff --git a/arch/powerpc/include/asm/kvm_host.h b/arch/powerpc/include/asm/kvm_host.h
index f7215e622dfd..c30a70c6b931 100644
--- a/arch/powerpc/include/asm/kvm_host.h
+++ b/arch/powerpc/include/asm/kvm_host.h
@@ -172,9 +172,20 @@ struct kvm_vcpu_arch {
         struct kvmppc_mmu mmu;
 #endif
 
-        u64 fpr[32];
         ulong gpr[32];
 
+        u64 fpr[32];
+        u32 fpscr;
+
+#ifdef CONFIG_ALTIVEC
+        vector128 vr[32];
+        vector128 vscr;
+#endif
+
+#ifdef CONFIG_VSX
+        u64 vsr[32];
+#endif
+
         ulong pc;
         ulong ctr;
         ulong lr;
@@ -188,6 +199,7 @@ struct kvm_vcpu_arch {
 #ifdef CONFIG_PPC64
         ulong shadow_msr;
         ulong hflags;
+        ulong guest_owned_ext;
 #endif
         u32 mmucr;
         ulong sprg0;