Patchwork [4/9] KVM: PPC: bookehv64: Add support for std/ld emulation.

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Submitter Alexander Graf
Date July 11, 2012, 12:56 a.m.
Message ID <1341968204-6756-5-git-send-email-agraf@suse.de>
Download mbox | patch
Permalink /patch/170331/
State New
Headers show

Comments

Alexander Graf - July 11, 2012, 12:56 a.m.
From: Varun Sethi <Varun.Sethi@freescale.com>

Add support for std/ld emulation.

Signed-off-by: Varun Sethi <Varun.Sethi@freescale.com>
Signed-off-by: Alexander Graf <agraf@suse.de>
---
 arch/powerpc/kvm/emulate.c |   16 ++++++++++++++++
 1 files changed, 16 insertions(+), 0 deletions(-)

Patch

diff --git a/arch/powerpc/kvm/emulate.c b/arch/powerpc/kvm/emulate.c
index f90e86d..ee04aba 100644
--- a/arch/powerpc/kvm/emulate.c
+++ b/arch/powerpc/kvm/emulate.c
@@ -59,11 +59,13 @@ 
 #define OP_31_XOP_STHBRX    918
 
 #define OP_LWZ  32
+#define OP_LD   58
 #define OP_LWZU 33
 #define OP_LBZ  34
 #define OP_LBZU 35
 #define OP_STW  36
 #define OP_STWU 37
+#define OP_STD  62
 #define OP_STB  38
 #define OP_STBU 39
 #define OP_LHZ  40
@@ -392,6 +394,12 @@  int kvmppc_emulate_instruction(struct kvm_run *run, struct kvm_vcpu *vcpu)
 		emulated = kvmppc_handle_load(run, vcpu, rt, 4, 1);
 		break;
 
+	/* TBD: Add support for other 64 bit load variants like ldu, ldux, ldx etc. */
+	case OP_LD:
+		rt = get_rt(inst);
+		emulated = kvmppc_handle_load(run, vcpu, rt, 8, 1);
+		break;
+
 	case OP_LWZU:
 		emulated = kvmppc_handle_load(run, vcpu, rt, 4, 1);
 		kvmppc_set_gpr(vcpu, ra, vcpu->arch.vaddr_accessed);
@@ -412,6 +420,14 @@  int kvmppc_emulate_instruction(struct kvm_run *run, struct kvm_vcpu *vcpu)
 		                               4, 1);
 		break;
 
+	/* TBD: Add support for other 64 bit store variants like stdu, stdux, stdx etc. */
+	case OP_STD:
+		rs = get_rs(inst);
+		emulated = kvmppc_handle_store(run, vcpu,
+					       kvmppc_get_gpr(vcpu, rs),
+		                               8, 1);
+		break;
+
 	case OP_STWU:
 		emulated = kvmppc_handle_store(run, vcpu,
 					       kvmppc_get_gpr(vcpu, rs),