From 6c3287f7c5050076b554145f11bdba058de287d1 Mon Sep 17 00:00:00 2001 From: Avi Kivity Date: Wed, 20 Apr 2011 15:43:05 +0300 Subject: [PATCH] KVM: x86 emulator: add new ->halt() callback Instead of reaching into vcpu internals. Signed-off-by: Avi Kivity --- arch/x86/include/asm/kvm_emulate.h | 1 + arch/x86/kvm/emulate.c | 2 +- arch/x86/kvm/x86.c | 6 ++++++ 3 files changed, 8 insertions(+), 1 deletion(-) diff --git a/arch/x86/include/asm/kvm_emulate.h b/arch/x86/include/asm/kvm_emulate.h index f890769..d30f1e9 100644 --- a/arch/x86/include/asm/kvm_emulate.h +++ b/arch/x86/include/asm/kvm_emulate.h @@ -186,6 +186,7 @@ struct x86_emulate_ops { int (*set_dr)(struct x86_emulate_ctxt *ctxt, int dr, ulong value); int (*set_msr)(struct x86_emulate_ctxt *ctxt, u32 msr_index, u64 data); int (*get_msr)(struct x86_emulate_ctxt *ctxt, u32 msr_index, u64 *pdata); + void (*halt)(struct x86_emulate_ctxt *ctxt); void (*get_fpu)(struct x86_emulate_ctxt *ctxt); /* disables preempt */ void (*put_fpu)(struct x86_emulate_ctxt *ctxt); /* reenables preempt */ int (*intercept)(struct x86_emulate_ctxt *ctxt, diff --git a/arch/x86/kvm/emulate.c b/arch/x86/kvm/emulate.c index 5d774e9..210df51 100644 --- a/arch/x86/kvm/emulate.c +++ b/arch/x86/kvm/emulate.c @@ -3913,7 +3913,7 @@ special_insn: c->dst.type = OP_NONE; /* Disable writeback. */ break; case 0xf4: /* hlt */ - ctxt->vcpu->arch.halt_request = 1; + ctxt->ops->halt(ctxt); break; case 0xf5: /* cmc */ /* complement carry flag from eflags reg */ diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c index 8af49b3..2246cf1 100644 --- a/arch/x86/kvm/x86.c +++ b/arch/x86/kvm/x86.c @@ -4351,6 +4351,11 @@ static int emulator_set_msr(struct x86_emulate_ctxt *ctxt, return kvm_set_msr(emul_to_vcpu(ctxt), msr_index, data); } +static void emulator_halt(struct x86_emulate_ctxt *ctxt) +{ + emul_to_vcpu(ctxt)->arch.halt_request = 1; +} + static void emulator_get_fpu(struct x86_emulate_ctxt *ctxt) { preempt_disable(); @@ -4400,6 +4405,7 @@ static struct x86_emulate_ops emulate_ops = { .set_dr = emulator_set_dr, .set_msr = emulator_set_msr, .get_msr = emulator_get_msr, + .halt = emulator_halt, .get_fpu = emulator_get_fpu, .put_fpu = emulator_put_fpu, .intercept = emulator_intercept, -- 2.7.4