KVM: PPC: bookehv: Use a Macro for saving/restoring guest registers to/from their 64 bit copies.

Introduced PPC_STD/PPC_LD macros for saving/restoring guest registers to/from their 64 bit copies.

Signed-off-by: Varun Sethi <Varun.Sethi@freescale.com>
Signed-off-by: Alexander Graf <agraf@suse.de>

1 files changed, 8 insertions, 0 deletions

diff --git a/arch/powerpc/include/asm/kvm_asm.h b/arch/powerpc/include/asm/kvm_asm.h
index 097815233284..7d4018dd0e11 100644
--- a/arch/powerpc/include/asm/kvm_asm.h
+++ b/arch/powerpc/include/asm/kvm_asm.h
@@ -20,6 +20,14 @@
 #ifndef __POWERPC_KVM_ASM_H__
 #define __POWERPC_KVM_ASM_H__
 
+#ifdef CONFIG_64BIT
+#define PPC_STD(sreg, offset, areg)  std sreg, (offset)(areg)
+#define PPC_LD(treg, offset, areg)   ld treg, (offset)(areg)
+#else
+#define PPC_STD(sreg, offset, areg)  stw sreg, (offset+4)(areg)
+#define PPC_LD(treg, offset, areg)   lwz treg, (offset+4)(areg)
+#endif
+
 /* IVPR must be 64KiB-aligned. */
 #define VCPU_SIZE_ORDER 4
 #define VCPU_SIZE_LOG   (VCPU_SIZE_ORDER + 12)