[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] Re: [Xen-devel] [PATCH v1 3/5] xen/PMU: Initialization code for Xen PMU
On 09/23/2013 10:18 AM, Boris Ostrovsky wrote: On 09/23/2013 09:26 AM, Konrad Rzeszutek Wilk wrote:On Tue, Sep 10, 2013 at 11:31:48AM -0400, Boris Ostrovsky wrote:Map shared data structure that will hold CPU registers, VPMU context, VCPU/PCPI IDs of the VCPU interrupted by PMU interrupt. Hypervisor fills this information in its handler and passes it to the guest for further processing. Set up PMU VIRQ. Signed-off-by: Boris Ostrovsky <boris.ostrovsky@xxxxxxxxxx> --- arch/x86/xen/Makefile | 2 +-arch/x86/xen/pmu.c | 122 +++++++++++++++++++++++++++++++++++++++++arch/x86/xen/pmu.h | 12 ++++ arch/x86/xen/smp.c | 31 ++++++++++- include/xen/interface/xen.h | 1 + include/xen/interface/xenpmu.h | 77 ++++++++++++++++++++++++++ 6 files changed, 243 insertions(+), 2 deletions(-) create mode 100644 arch/x86/xen/pmu.c create mode 100644 arch/x86/xen/pmu.h diff --git a/arch/x86/xen/Makefile b/arch/x86/xen/Makefile index 96ab2c0..b187df5 100644 --- a/arch/x86/xen/Makefile +++ b/arch/x86/xen/Makefile @@ -13,7 +13,7 @@ CFLAGS_mmu.o := $(nostackp) obj-y := enlighten.o setup.o multicalls.o mmu.o irq.o \ time.o xen-asm.o xen-asm_$(BITS).o \ grant-table.o suspend.o platform-pci-unplug.o \ - p2m.o + p2m.o pmu.oPerhaps guard the build of this based on CONFIG_PERF_EVENTS? That would of course mean you also have to create in xenpmu.h static inline empy functions for xen_pmu_finish and xen_pmu_init in case CONFIG_PERF_EVENTS is not set.This is interface header, am I allowed to do those sorts of things there? Never mind that, I was thinking of a different file. Sorry. Also, *theoretically* other performance-measuring tools can use this framework, expect for perf-specific things like callbacks and the handler call. So maybe I should put CONFIG_PERF_EVENTS in pmu.c? -boris _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxx http://lists.xen.org/xen-devel
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