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KVM: convert custom marker based tracing to event traces

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This allows use of the powerful ftrace infrastructure.

See Documentation/trace/ for usage information.

[avi, stephen: various build fixes]
[sheng: fix control register breakage]

Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Sheng Yang <sheng@linux.intel.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
This commit is contained in:
Marcelo Tosatti
2009-06-17 09:22:14 -03:00
committed by Avi Kivity
parent 219b65dcf6
commit 229456fc34
10 changed files with 463 additions and 86 deletions
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7
arch/x86/kvm/lapic.c
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@@ -34,6 +34,7 @@
#include <asm/atomic.h>
#include "kvm_cache_regs.h"
#include "irq.h"
#include "trace.h"
#ifndef CONFIG_X86_64
#define mod_64(x, y) ((x) - (y) * div64_u64(x, y))
@@ -515,8 +516,6 @@ static u32 __apic_read(struct kvm_lapic *apic, unsigned int offset)
{
u32 val = 0;
KVMTRACE_1D(APIC_ACCESS, apic->vcpu, (u32)offset, handler);
if (offset >= LAPIC_MMIO_LENGTH)
return 0;
@@ -562,6 +561,8 @@ static void apic_mmio_read(struct kvm_io_device *this,
}
result = __apic_read(apic, offset & ~0xf);
trace_kvm_apic_read(offset, result);
switch (len) {
case 1:
case 2:
@@ -657,7 +658,7 @@ static void apic_mmio_write(struct kvm_io_device *this,
offset &= 0xff0;
KVMTRACE_1D(APIC_ACCESS, apic->vcpu, (u32)offset, handler);
trace_kvm_apic_write(offset, val);
switch (offset) {
case APIC_ID: /* Local APIC ID */