diff options
| author | Zhang, Yanmin | 2010-04-19 07:32:41 +0200 |
|---|---|---|
| committer | Avi Kivity | 2010-04-19 11:35:33 +0200 |
| commit | 39447b386c846bbf1c56f6403c5282837486200f (patch) | |
| tree | 5ceaf9900919e4bd269b92c55df15e33039fefd1 /arch/x86/include/asm/perf_event.h | |
| parent | Merge branch 'perf' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/lin... (diff) | |
| download | kernel-qcow2-linux-39447b386c846bbf1c56f6403c5282837486200f.tar.gz kernel-qcow2-linux-39447b386c846bbf1c56f6403c5282837486200f.tar.xz kernel-qcow2-linux-39447b386c846bbf1c56f6403c5282837486200f.zip | |
perf: Enhance perf to allow for guest statistic collection from host
Below patch introduces perf_guest_info_callbacks and related
register/unregister functions. Add more PERF_RECORD_MISC_XXX bits
meaning guest kernel and guest user space.
Signed-off-by: Zhang Yanmin <yanmin_zhang@linux.intel.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
Diffstat (limited to 'arch/x86/include/asm/perf_event.h')
| -rw-r--r-- | arch/x86/include/asm/perf_event.h | 15 |
1 files changed, 4 insertions, 11 deletions
diff --git a/arch/x86/include/asm/perf_event.h b/arch/x86/include/asm/perf_event.h index f6d43dbfd8e7..254883d0c7e0 100644 --- a/arch/x86/include/asm/perf_event.h +++ b/arch/x86/include/asm/perf_event.h @@ -135,17 +135,10 @@ extern void perf_events_lapic_init(void); */ #define PERF_EFLAGS_EXACT (1UL << 3) -#define perf_misc_flags(regs) \ -({ int misc = 0; \ - if (user_mode(regs)) \ - misc |= PERF_RECORD_MISC_USER; \ - else \ - misc |= PERF_RECORD_MISC_KERNEL; \ - if (regs->flags & PERF_EFLAGS_EXACT) \ - misc |= PERF_RECORD_MISC_EXACT; \ - misc; }) - -#define perf_instruction_pointer(regs) ((regs)->ip) +struct pt_regs; +extern unsigned long perf_instruction_pointer(struct pt_regs *regs); +extern unsigned long perf_misc_flags(struct pt_regs *regs); +#define perf_misc_flags(regs) perf_misc_flags(regs) #else static inline void init_hw_perf_events(void) { } |