From: Joerg Roedel <joerg.roedel@amd.com>
Date: Wed, 30 Apr 2008 15:56:02 +0000 (+0200)
Subject: KVM: add missing kvmtrace bits
X-Git-Tag: v2.6.27-rc1~968^2~64
X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=54e445ca8411ec892f986d9f8c11b8c1806ecde4;p=linux-2.6

KVM: add missing kvmtrace bits

This patch adds some kvmtrace bits to the generic x86 code
where it is instrumented from SVM.

Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
Signed-off-by: Avi Kivity <avi@qumranet.com>
---

diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
index 45dc2b6a9c..59084a3981 100644
--- a/arch/x86/kvm/x86.c
+++ b/arch/x86/kvm/x86.c
@@ -2020,6 +2020,7 @@ int emulate_invlpg(struct kvm_vcpu *vcpu, gva_t address)
 
 int emulate_clts(struct kvm_vcpu *vcpu)
 {
+	KVMTRACE_0D(CLTS, vcpu, handler);
 	kvm_x86_ops->set_cr0(vcpu, vcpu->arch.cr0 & ~X86_CR0_TS);
 	return X86EMUL_CONTINUE;
 }
@@ -2600,27 +2601,41 @@ void realmode_lmsw(struct kvm_vcpu *vcpu, unsigned long msw,
 
 unsigned long realmode_get_cr(struct kvm_vcpu *vcpu, int cr)
 {
+	unsigned long value;
+
 	kvm_x86_ops->decache_cr4_guest_bits(vcpu);
 	switch (cr) {
 	case 0:
-		return vcpu->arch.cr0;
+		value = vcpu->arch.cr0;
+		break;
 	case 2:
-		return vcpu->arch.cr2;
+		value = vcpu->arch.cr2;
+		break;
 	case 3:
-		return vcpu->arch.cr3;
+		value = vcpu->arch.cr3;
+		break;
 	case 4:
-		return vcpu->arch.cr4;
+		value = vcpu->arch.cr4;
+		break;
 	case 8:
-		return kvm_get_cr8(vcpu);
+		value = kvm_get_cr8(vcpu);
+		break;
 	default:
 		vcpu_printf(vcpu, "%s: unexpected cr %u\n", __func__, cr);
 		return 0;
 	}
+	KVMTRACE_3D(CR_READ, vcpu, (u32)cr, (u32)value,
+		    (u32)((u64)value >> 32), handler);
+
+	return value;
 }
 
 void realmode_set_cr(struct kvm_vcpu *vcpu, int cr, unsigned long val,
 		     unsigned long *rflags)
 {
+	KVMTRACE_3D(CR_WRITE, vcpu, (u32)cr, (u32)val,
+		    (u32)((u64)val >> 32), handler);
+
 	switch (cr) {
 	case 0:
 		kvm_set_cr0(vcpu, mk_cr_64(vcpu->arch.cr0, val));