From: Avi Kivity <avi@redhat.com>
Date: Wed, 20 Apr 2011 12:38:44 +0000 (+0300)
Subject: KVM: x86 emulator: make emulate_invlpg() an emulator callback
X-Git-Tag: Ubuntu-5.0.0-8.9~18969^2~49
X-Git-Url: https://git.proxmox.com/?a=commitdiff_plain;h=3cb16fe78ce91991a876c74fc5dc99419b737b7a;p=mirror_ubuntu-disco-kernel.git

KVM: x86 emulator: make emulate_invlpg() an emulator callback

Removing direct calls to KVM.

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 4d1546aa6104..f89076943701 100644
--- a/arch/x86/include/asm/kvm_emulate.h
+++ b/arch/x86/include/asm/kvm_emulate.h
@@ -154,6 +154,7 @@ struct x86_emulate_ops {
 				const void *new,
 				unsigned int bytes,
 				struct x86_exception *fault);
+	void (*invlpg)(struct x86_emulate_ctxt *ctxt, ulong addr);
 
 	int (*pio_in_emulated)(struct x86_emulate_ctxt *ctxt,
 			       int size, unsigned short port, void *val,
diff --git a/arch/x86/include/asm/kvm_host.h b/arch/x86/include/asm/kvm_host.h
index 9c3567e0f730..d957d0d06562 100644
--- a/arch/x86/include/asm/kvm_host.h
+++ b/arch/x86/include/asm/kvm_host.h
@@ -690,7 +690,6 @@ struct x86_emulate_ctxt;
 int kvm_fast_pio_out(struct kvm_vcpu *vcpu, int size, unsigned short port);
 void kvm_emulate_cpuid(struct kvm_vcpu *vcpu);
 int kvm_emulate_halt(struct kvm_vcpu *vcpu);
-int emulate_invlpg(struct kvm_vcpu *vcpu, gva_t address);
 int kvm_emulate_wbinvd(struct kvm_vcpu *vcpu);
 
 void kvm_get_segment(struct kvm_vcpu *vcpu, struct kvm_segment *var, int seg);
diff --git a/arch/x86/kvm/emulate.c b/arch/x86/kvm/emulate.c
index 2b903a326096..5d774e91388e 100644
--- a/arch/x86/kvm/emulate.c
+++ b/arch/x86/kvm/emulate.c
@@ -2573,7 +2573,7 @@ static int em_invlpg(struct x86_emulate_ctxt *ctxt)
 
 	rc = linearize(ctxt, c->src.addr.mem, 1, false, &linear);
 	if (rc == X86EMUL_CONTINUE)
-		emulate_invlpg(ctxt->vcpu, linear);
+		ctxt->ops->invlpg(ctxt, linear);
 	/* Disable writeback. */
 	c->dst.type = OP_NONE;
 	return X86EMUL_CONTINUE;
diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
index a9e83862feb8..8af49b3df675 100644
--- a/arch/x86/kvm/x86.c
+++ b/arch/x86/kvm/x86.c
@@ -4128,10 +4128,9 @@ static unsigned long get_segment_base(struct kvm_vcpu *vcpu, int seg)
 	return kvm_x86_ops->get_segment_base(vcpu, seg);
 }
 
-int emulate_invlpg(struct kvm_vcpu *vcpu, gva_t address)
+static void emulator_invlpg(struct x86_emulate_ctxt *ctxt, ulong address)
 {
-	kvm_mmu_invlpg(vcpu, address);
-	return X86EMUL_CONTINUE;
+	kvm_mmu_invlpg(emul_to_vcpu(ctxt), address);
 }
 
 int kvm_emulate_wbinvd(struct kvm_vcpu *vcpu)
@@ -4382,6 +4381,7 @@ static struct x86_emulate_ops emulate_ops = {
 	.read_emulated       = emulator_read_emulated,
 	.write_emulated      = emulator_write_emulated,
 	.cmpxchg_emulated    = emulator_cmpxchg_emulated,
+	.invlpg              = emulator_invlpg,
 	.pio_in_emulated     = emulator_pio_in_emulated,
 	.pio_out_emulated    = emulator_pio_out_emulated,
 	.get_cached_descriptor = emulator_get_cached_descriptor,