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Diffstat (limited to 'arch/powerpc/kvm/emulate.c')
-rw-r--r--arch/powerpc/kvm/emulate.c71
1 files changed, 4 insertions, 67 deletions
diff --git a/arch/powerpc/kvm/emulate.c b/arch/powerpc/kvm/emulate.c
index a27d4dc3b4a3..f63b5cbd8221 100644
--- a/arch/powerpc/kvm/emulate.c
+++ b/arch/powerpc/kvm/emulate.c
@@ -148,11 +148,10 @@ u32 kvmppc_get_dec(struct kvm_vcpu *vcpu, u64 tb)
int kvmppc_emulate_instruction(struct kvm_run *run, struct kvm_vcpu *vcpu)
{
u32 inst = kvmppc_get_last_inst(vcpu);
- int ra;
- int rb;
- int rs;
- int rt;
- int sprn;
+ int ra = get_ra(inst);
+ int rs = get_rs(inst);
+ int rt = get_rt(inst);
+ int sprn = get_sprn(inst);
enum emulation_result emulated = EMULATE_DONE;
int advance = 1;
@@ -189,43 +188,31 @@ int kvmppc_emulate_instruction(struct kvm_run *run, struct kvm_vcpu *vcpu)
advance = 0;
break;
case OP_31_XOP_LWZX:
- rt = get_rt(inst);
emulated = kvmppc_handle_load(run, vcpu, rt, 4, 1);
break;
case OP_31_XOP_LBZX:
- rt = get_rt(inst);
emulated = kvmppc_handle_load(run, vcpu, rt, 1, 1);
break;
case OP_31_XOP_LBZUX:
- rt = get_rt(inst);
- ra = get_ra(inst);
- rb = get_rb(inst);
-
emulated = kvmppc_handle_load(run, vcpu, rt, 1, 1);
kvmppc_set_gpr(vcpu, ra, vcpu->arch.vaddr_accessed);
break;
case OP_31_XOP_STWX:
- rs = get_rs(inst);
emulated = kvmppc_handle_store(run, vcpu,
kvmppc_get_gpr(vcpu, rs),
4, 1);
break;
case OP_31_XOP_STBX:
- rs = get_rs(inst);
emulated = kvmppc_handle_store(run, vcpu,
kvmppc_get_gpr(vcpu, rs),
1, 1);
break;
case OP_31_XOP_STBUX:
- rs = get_rs(inst);
- ra = get_ra(inst);
- rb = get_rb(inst);
-
emulated = kvmppc_handle_store(run, vcpu,
kvmppc_get_gpr(vcpu, rs),
1, 1);
@@ -233,28 +220,19 @@ int kvmppc_emulate_instruction(struct kvm_run *run, struct kvm_vcpu *vcpu)
break;
case OP_31_XOP_LHAX:
- rt = get_rt(inst);
emulated = kvmppc_handle_loads(run, vcpu, rt, 2, 1);
break;
case OP_31_XOP_LHZX:
- rt = get_rt(inst);
emulated = kvmppc_handle_load(run, vcpu, rt, 2, 1);
break;
case OP_31_XOP_LHZUX:
- rt = get_rt(inst);
- ra = get_ra(inst);
- rb = get_rb(inst);
-
emulated = kvmppc_handle_load(run, vcpu, rt, 2, 1);
kvmppc_set_gpr(vcpu, ra, vcpu->arch.vaddr_accessed);
break;
case OP_31_XOP_MFSPR:
- sprn = get_sprn(inst);
- rt = get_rt(inst);
-
switch (sprn) {
case SPRN_SRR0:
kvmppc_set_gpr(vcpu, rt, vcpu->arch.shared->srr0);
@@ -310,20 +288,12 @@ int kvmppc_emulate_instruction(struct kvm_run *run, struct kvm_vcpu *vcpu)
break;
case OP_31_XOP_STHX:
- rs = get_rs(inst);
- ra = get_ra(inst);
- rb = get_rb(inst);
-
emulated = kvmppc_handle_store(run, vcpu,
kvmppc_get_gpr(vcpu, rs),
2, 1);
break;
case OP_31_XOP_STHUX:
- rs = get_rs(inst);
- ra = get_ra(inst);
- rb = get_rb(inst);
-
emulated = kvmppc_handle_store(run, vcpu,
kvmppc_get_gpr(vcpu, rs),
2, 1);
@@ -331,8 +301,6 @@ int kvmppc_emulate_instruction(struct kvm_run *run, struct kvm_vcpu *vcpu)
break;
case OP_31_XOP_MTSPR:
- sprn = get_sprn(inst);
- rs = get_rs(inst);
switch (sprn) {
case SPRN_SRR0:
vcpu->arch.shared->srr0 = kvmppc_get_gpr(vcpu, rs);
@@ -384,7 +352,6 @@ int kvmppc_emulate_instruction(struct kvm_run *run, struct kvm_vcpu *vcpu)
break;
case OP_31_XOP_LWBRX:
- rt = get_rt(inst);
emulated = kvmppc_handle_load(run, vcpu, rt, 4, 0);
break;
@@ -392,25 +359,16 @@ int kvmppc_emulate_instruction(struct kvm_run *run, struct kvm_vcpu *vcpu)
break;
case OP_31_XOP_STWBRX:
- rs = get_rs(inst);
- ra = get_ra(inst);
- rb = get_rb(inst);
-
emulated = kvmppc_handle_store(run, vcpu,
kvmppc_get_gpr(vcpu, rs),
4, 0);
break;
case OP_31_XOP_LHBRX:
- rt = get_rt(inst);
emulated = kvmppc_handle_load(run, vcpu, rt, 2, 0);
break;
case OP_31_XOP_STHBRX:
- rs = get_rs(inst);
- ra = get_ra(inst);
- rb = get_rb(inst);
-
emulated = kvmppc_handle_store(run, vcpu,
kvmppc_get_gpr(vcpu, rs),
2, 0);
@@ -423,39 +381,30 @@ int kvmppc_emulate_instruction(struct kvm_run *run, struct kvm_vcpu *vcpu)
break;
case OP_LWZ:
- rt = get_rt(inst);
emulated = kvmppc_handle_load(run, vcpu, rt, 4, 1);
break;
case OP_LWZU:
- ra = get_ra(inst);
- rt = get_rt(inst);
emulated = kvmppc_handle_load(run, vcpu, rt, 4, 1);
kvmppc_set_gpr(vcpu, ra, vcpu->arch.vaddr_accessed);
break;
case OP_LBZ:
- rt = get_rt(inst);
emulated = kvmppc_handle_load(run, vcpu, rt, 1, 1);
break;
case OP_LBZU:
- ra = get_ra(inst);
- rt = get_rt(inst);
emulated = kvmppc_handle_load(run, vcpu, rt, 1, 1);
kvmppc_set_gpr(vcpu, ra, vcpu->arch.vaddr_accessed);
break;
case OP_STW:
- rs = get_rs(inst);
emulated = kvmppc_handle_store(run, vcpu,
kvmppc_get_gpr(vcpu, rs),
4, 1);
break;
case OP_STWU:
- ra = get_ra(inst);
- rs = get_rs(inst);
emulated = kvmppc_handle_store(run, vcpu,
kvmppc_get_gpr(vcpu, rs),
4, 1);
@@ -463,15 +412,12 @@ int kvmppc_emulate_instruction(struct kvm_run *run, struct kvm_vcpu *vcpu)
break;
case OP_STB:
- rs = get_rs(inst);
emulated = kvmppc_handle_store(run, vcpu,
kvmppc_get_gpr(vcpu, rs),
1, 1);
break;
case OP_STBU:
- ra = get_ra(inst);
- rs = get_rs(inst);
emulated = kvmppc_handle_store(run, vcpu,
kvmppc_get_gpr(vcpu, rs),
1, 1);
@@ -479,39 +425,30 @@ int kvmppc_emulate_instruction(struct kvm_run *run, struct kvm_vcpu *vcpu)
break;
case OP_LHZ:
- rt = get_rt(inst);
emulated = kvmppc_handle_load(run, vcpu, rt, 2, 1);
break;
case OP_LHZU:
- ra = get_ra(inst);
- rt = get_rt(inst);
emulated = kvmppc_handle_load(run, vcpu, rt, 2, 1);
kvmppc_set_gpr(vcpu, ra, vcpu->arch.vaddr_accessed);
break;
case OP_LHA:
- rt = get_rt(inst);
emulated = kvmppc_handle_loads(run, vcpu, rt, 2, 1);
break;
case OP_LHAU:
- ra = get_ra(inst);
- rt = get_rt(inst);
emulated = kvmppc_handle_loads(run, vcpu, rt, 2, 1);
kvmppc_set_gpr(vcpu, ra, vcpu->arch.vaddr_accessed);
break;
case OP_STH:
- rs = get_rs(inst);
emulated = kvmppc_handle_store(run, vcpu,
kvmppc_get_gpr(vcpu, rs),
2, 1);
break;
case OP_STHU:
- ra = get_ra(inst);
- rs = get_rs(inst);
emulated = kvmppc_handle_store(run, vcpu,
kvmppc_get_gpr(vcpu, rs),
2, 1);
generated by cgit v1.2.3 (git 2.39.0) at 2024-12-14 18:22:09 +0300