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[PULL,29/63] kvm: ppc: bookehv: Added wrapper macros for shadow registers

Message ID 1406884714-33099-30-git-send-email-agraf@suse.de
State New, archived
Headers show

Commit Message

Alexander Graf Aug. 1, 2014, 9:18 a.m. UTC 
From: Bharat Bhushan <Bharat.Bhushan@freescale.com>

There are shadow registers like, GSPRG[0-3], GSRR0, GSRR1 etc on
BOOKE-HV and these shadow registers are guest accessible.
So these shadow registers needs to be updated on BOOKE-HV.
This patch adds new macro for get/set helper of shadow register .

Signed-off-by: Bharat Bhushan <Bharat.Bhushan@freescale.com>
Signed-off-by: Alexander Graf <agraf@suse.de>
---
 arch/powerpc/include/asm/kvm_ppc.h | 44 +++++++++++++++++++++++++++++++-------
 1 file changed, 36 insertions(+), 8 deletions(-)
diff mbox

Patch

diff --git a/arch/powerpc/include/asm/kvm_ppc.h b/arch/powerpc/include/asm/kvm_ppc.h
index e2fd5a1..6520d09 100644
--- a/arch/powerpc/include/asm/kvm_ppc.h
+++ b/arch/powerpc/include/asm/kvm_ppc.h
@@ -472,8 +472,20 @@  static inline bool kvmppc_shared_big_endian(struct kvm_vcpu *vcpu)
 #endif
 }
 
+#define SPRNG_WRAPPER_GET(reg, e500hv_spr)				\
+static inline ulong kvmppc_get_##reg(struct kvm_vcpu *vcpu)		\
+{									\
+	return mfspr(e500hv_spr);					\
+}									\
+
+#define SPRNG_WRAPPER_SET(reg, e500hv_spr)				\
+static inline void kvmppc_set_##reg(struct kvm_vcpu *vcpu, ulong val)	\
+{									\
+	mtspr(e500hv_spr, val);						\
+}									\
+
 #define SHARED_WRAPPER_GET(reg, size)					\
-static inline u##size kvmppc_get_##reg(struct kvm_vcpu *vcpu)	\
+static inline u##size kvmppc_get_##reg(struct kvm_vcpu *vcpu)		\
 {									\
 	if (kvmppc_shared_big_endian(vcpu))				\
 	       return be##size##_to_cpu(vcpu->arch.shared->reg);	\
@@ -494,14 +506,30 @@  static inline void kvmppc_set_##reg(struct kvm_vcpu *vcpu, u##size val)	\
 	SHARED_WRAPPER_GET(reg, size)					\
 	SHARED_WRAPPER_SET(reg, size)					\
 
+#define SPRNG_WRAPPER(reg, e500hv_spr)					\
+	SPRNG_WRAPPER_GET(reg, e500hv_spr)				\
+	SPRNG_WRAPPER_SET(reg, e500hv_spr)				\
+
+#ifdef CONFIG_KVM_BOOKE_HV
+
+#define SHARED_SPRNG_WRAPPER(reg, size, e500hv_spr)			\
+	SPRNG_WRAPPER(reg, e500hv_spr)					\
+
+#else
+
+#define SHARED_SPRNG_WRAPPER(reg, size, e500hv_spr)			\
+	SHARED_WRAPPER(reg, size)					\
+
+#endif
+
 SHARED_WRAPPER(critical, 64)
-SHARED_WRAPPER(sprg0, 64)
-SHARED_WRAPPER(sprg1, 64)
-SHARED_WRAPPER(sprg2, 64)
-SHARED_WRAPPER(sprg3, 64)
-SHARED_WRAPPER(srr0, 64)
-SHARED_WRAPPER(srr1, 64)
-SHARED_WRAPPER(dar, 64)
+SHARED_SPRNG_WRAPPER(sprg0, 64, SPRN_GSPRG0)
+SHARED_SPRNG_WRAPPER(sprg1, 64, SPRN_GSPRG1)
+SHARED_SPRNG_WRAPPER(sprg2, 64, SPRN_GSPRG2)
+SHARED_SPRNG_WRAPPER(sprg3, 64, SPRN_GSPRG3)
+SHARED_SPRNG_WRAPPER(srr0, 64, SPRN_GSRR0)
+SHARED_SPRNG_WRAPPER(srr1, 64, SPRN_GSRR1)
+SHARED_SPRNG_WRAPPER(dar, 64, SPRN_GDEAR)
 SHARED_WRAPPER_GET(msr, 64)
 static inline void kvmppc_set_msr_fast(struct kvm_vcpu *vcpu, u64 val)
 {