Hollis Blanchard 73e75b416f KVM: ppc: Implement in-kernel exit timing statistics ... Existing KVM statistics are either just counters (kvm_stat) reported for KVM generally or trace based aproaches like kvm_trace. For KVM on powerpc we had the need to track the timings of the different exit types. While this could be achieved parsing data created with a kvm_trace extension this adds too much overhead (at least on embedded PowerPC) slowing down the workloads we wanted to measure. Therefore this patch adds a in-kernel exit timing statistic to the powerpc kvm code. These statistic is available per vm&vcpu under the kvm debugfs directory. As this statistic is low, but still some overhead it can be enabled via a .config entry and should be off by default. Since this patch touched all powerpc kvm_stat code anyway this code is now merged and simplified together with the exit timing statistic code (still working with exit timing disabled in .config). Signed-off-by: Christian Ehrhardt <ehrhardt@linux.vnet.ibm.com> Signed-off-by: Hollis Blanchard <hollisb@us.ibm.com> Signed-off-by: Avi Kivity <avi@redhat.com>		2008-12-31 16:55:41 +02:00
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44x.c	KVM: ppc: save and restore guest mappings on context switch	2008-12-31 16:55:09 +02:00
44x_emulate.c	KVM: ppc: Implement in-kernel exit timing statistics	2008-12-31 16:55:41 +02:00
44x_tlb.c	KVM: ppc: Implement in-kernel exit timing statistics	2008-12-31 16:55:41 +02:00
44x_tlb.h	KVM: ppc: directly insert shadow mappings into the hardware TLB	2008-12-31 16:55:09 +02:00
booke.c	KVM: ppc: Implement in-kernel exit timing statistics	2008-12-31 16:55:41 +02:00
booke.h	KVM: ppc: Implement in-kernel exit timing statistics	2008-12-31 16:55:41 +02:00
booke_interrupts.S	KVM: ppc: Implement in-kernel exit timing statistics	2008-12-31 16:55:41 +02:00
emulate.c	KVM: ppc: Implement in-kernel exit timing statistics	2008-12-31 16:55:41 +02:00
Kconfig	KVM: ppc: Implement in-kernel exit timing statistics	2008-12-31 16:55:41 +02:00
Makefile	KVM: ppc: Implement in-kernel exit timing statistics	2008-12-31 16:55:41 +02:00
powerpc.c	KVM: ppc: Implement in-kernel exit timing statistics	2008-12-31 16:55:41 +02:00
timing.c	KVM: ppc: Implement in-kernel exit timing statistics	2008-12-31 16:55:41 +02:00
timing.h	KVM: ppc: Implement in-kernel exit timing statistics	2008-12-31 16:55:41 +02:00