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authorAvi Kivity <avi@redhat.com>2009-07-01 16:01:02 +0300
committerAvi Kivity <avi@redhat.com>2009-09-10 08:33:07 +0300
commitaec51dc4f1584018d7e35269e04e3dde3d2033e6 (patch)
tree8423d4680a2db4417fd99ccfffc935f8650230e1 /arch/x86
parentc323c0e5f06150cc000e09e8e3b22356099e7bde (diff)
KVM: Trace mmio
Signed-off-by: Avi Kivity <avi@redhat.com>
Diffstat (limited to 'arch/x86')
-rw-r--r--arch/x86/kvm/x86.c11
1 files changed, 10 insertions, 1 deletions
diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
index af40e23df251..d32e3c6d3175 100644
--- a/arch/x86/kvm/x86.c
+++ b/arch/x86/kvm/x86.c
@@ -37,6 +37,8 @@
#include <linux/iommu.h>
#include <linux/intel-iommu.h>
#include <linux/cpufreq.h>
+#include <trace/events/kvm.h>
+#undef TRACE_INCLUDE_FILE
#define CREATE_TRACE_POINTS
#include "trace.h"
@@ -2425,6 +2427,8 @@ static int emulator_read_emulated(unsigned long addr,
if (vcpu->mmio_read_completed) {
memcpy(val, vcpu->mmio_data, bytes);
+ trace_kvm_mmio(KVM_TRACE_MMIO_READ, bytes,
+ vcpu->mmio_phys_addr, *(u64 *)val);
vcpu->mmio_read_completed = 0;
return X86EMUL_CONTINUE;
}
@@ -2445,8 +2449,12 @@ mmio:
/*
* Is this MMIO handled locally?
*/
- if (!vcpu_mmio_read(vcpu, gpa, bytes, val))
+ if (!vcpu_mmio_read(vcpu, gpa, bytes, val)) {
+ trace_kvm_mmio(KVM_TRACE_MMIO_READ, bytes, gpa, *(u64 *)val);
return X86EMUL_CONTINUE;
+ }
+
+ trace_kvm_mmio(KVM_TRACE_MMIO_READ_UNSATISFIED, bytes, gpa, 0);
vcpu->mmio_needed = 1;
vcpu->mmio_phys_addr = gpa;
@@ -2490,6 +2498,7 @@ static int emulator_write_emulated_onepage(unsigned long addr,
return X86EMUL_CONTINUE;
mmio:
+ trace_kvm_mmio(KVM_TRACE_MMIO_WRITE, bytes, gpa, *(u64 *)val);
/*
* Is this MMIO handled locally?
*/