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authorAvi Kivity <avi@redhat.com>2010-07-29 15:11:50 +0300
committerAvi Kivity <avi@redhat.com>2010-10-24 10:50:21 +0200
commit9aabc88fc8687ba3a520e2ec459821d05f72474e (patch)
tree6e57c011a783af6a8a0e2ca92e3f55eb4d2701ae /arch/x86/kvm
parentab85b12b1a7fd125588f9447653a71ec8e1b5024 (diff)
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KVM: x86 emulator: store x86_emulate_ops in emulation context
It doesn't ever change, so we don't need to pass it around everywhere. Signed-off-by: Avi Kivity <avi@redhat.com> Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
Diffstat (limited to 'arch/x86/kvm')
-rw-r--r--arch/x86/kvm/emulate.c8
-rw-r--r--arch/x86/kvm/x86.c7
2 files changed, 9 insertions, 6 deletions
diff --git a/arch/x86/kvm/emulate.c b/arch/x86/kvm/emulate.c
index d7e3ea4797f1..3689f34a303a 100644
--- a/arch/x86/kvm/emulate.c
+++ b/arch/x86/kvm/emulate.c
@@ -943,8 +943,9 @@ done:
}
int
-x86_decode_insn(struct x86_emulate_ctxt *ctxt, struct x86_emulate_ops *ops)
+x86_decode_insn(struct x86_emulate_ctxt *ctxt)
{
+ struct x86_emulate_ops *ops = ctxt->ops;
struct decode_cache *c = &ctxt->decode;
int rc = X86EMUL_CONTINUE;
int mode = ctxt->mode;
@@ -2586,10 +2587,10 @@ static int emulator_do_task_switch(struct x86_emulate_ctxt *ctxt,
}
int emulator_task_switch(struct x86_emulate_ctxt *ctxt,
- struct x86_emulate_ops *ops,
u16 tss_selector, int reason,
bool has_error_code, u32 error_code)
{
+ struct x86_emulate_ops *ops = ctxt->ops;
struct decode_cache *c = &ctxt->decode;
int rc;
@@ -2619,8 +2620,9 @@ static void string_addr_inc(struct x86_emulate_ctxt *ctxt, unsigned long base,
}
int
-x86_emulate_insn(struct x86_emulate_ctxt *ctxt, struct x86_emulate_ops *ops)
+x86_emulate_insn(struct x86_emulate_ctxt *ctxt)
{
+ struct x86_emulate_ops *ops = ctxt->ops;
u64 msr_data;
struct decode_cache *c = &ctxt->decode;
int rc = X86EMUL_CONTINUE;
diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
index 3a09c625d526..33deb75f16ee 100644
--- a/arch/x86/kvm/x86.c
+++ b/arch/x86/kvm/x86.c
@@ -3998,7 +3998,7 @@ int emulate_instruction(struct kvm_vcpu *vcpu,
vcpu->arch.emulate_ctxt.interruptibility = 0;
vcpu->arch.emulate_ctxt.exception = -1;
- r = x86_decode_insn(&vcpu->arch.emulate_ctxt, &emulate_ops);
+ r = x86_decode_insn(&vcpu->arch.emulate_ctxt);
trace_kvm_emulate_insn_start(vcpu);
/* Only allow emulation of specific instructions on #UD
@@ -4048,7 +4048,7 @@ int emulate_instruction(struct kvm_vcpu *vcpu,
memcpy(c->regs, vcpu->arch.regs, sizeof c->regs);
restart:
- r = x86_emulate_insn(&vcpu->arch.emulate_ctxt, &emulate_ops);
+ r = x86_emulate_insn(&vcpu->arch.emulate_ctxt);
if (r) { /* emulation failed */
if (reexecute_instruction(vcpu, cr2))
@@ -5067,7 +5067,7 @@ int kvm_task_switch(struct kvm_vcpu *vcpu, u16 tss_selector, int reason,
memset(c, 0, sizeof(struct decode_cache));
memcpy(c->regs, vcpu->arch.regs, sizeof c->regs);
- ret = emulator_task_switch(&vcpu->arch.emulate_ctxt, &emulate_ops,
+ ret = emulator_task_switch(&vcpu->arch.emulate_ctxt,
tss_selector, reason, has_error_code,
error_code);
@@ -5424,6 +5424,7 @@ int kvm_arch_vcpu_init(struct kvm_vcpu *vcpu)
BUG_ON(vcpu->kvm == NULL);
kvm = vcpu->kvm;
+ vcpu->arch.emulate_ctxt.ops = &emulate_ops;
vcpu->arch.mmu.root_hpa = INVALID_PAGE;
if (!irqchip_in_kernel(kvm) || kvm_vcpu_is_bsp(vcpu))
vcpu->arch.mp_state = KVM_MP_STATE_RUNNABLE;