From: Avi Kivity <avi@redhat.com>
Date: Wed, 20 Apr 2011 12:43:05 +0000 (+0300)
Subject: KVM: x86 emulator: add new ->halt() callback
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=6c3287f7c5050076b554145f11bdba058de287d1;p=GitHub%2FLineageOS%2Fandroid_kernel_samsung_universal7580.git

KVM: x86 emulator: add new ->halt() callback

Instead of reaching into vcpu internals.

Signed-off-by: Avi Kivity <avi@redhat.com>
---

diff --git a/arch/x86/include/asm/kvm_emulate.h b/arch/x86/include/asm/kvm_emulate.h
index f8907694370..d30f1e9b754 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 5d774e91388..210df51b76a 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 8af49b3df67..2246cf1a4ee 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,