xiaomi-sm8450/android_kernel_xiaomi_sm8450
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

KVM: PPC: Book3S HV: Counters for passthrough IRQ stats

Browse Source 
Add VCPU stat counters to track affinity for passthrough
interrupts.

pthru_all: Counts all passthrough interrupts whose IRQ mappings are
           in the kvmppc_passthru_irq_map structure.
pthru_host: Counts all cached passthrough interrupts that were injected
	    from the host through kvm_set_irq (i.e. not handled in
	    real mode).
pthru_bad_aff: Counts how many cached passthrough interrupts have
               bad affinity (receiving CPU is not running VCPU that is
	       the target of the virtual interrupt in the guest).

Signed-off-by: Suresh Warrier <warrier@linux.vnet.ibm.com>
Signed-off-by: Paul Mackerras <paulus@ozlabs.org>
This commit is contained in:
Suresh Warrier
2016-08-19 15:35:57 +10:00
committed by Paul Mackerras
parent 5d375199ea
commit 65e7026a6c
3 changed files with 19 additions and 5 deletions
Download Patch File Download Diff File Expand all files Collapse all files

3
arch/powerpc/include/asm/kvm_host.h
View File

@@ -137,6 +137,9 @@ struct kvm_vcpu_stat {
u64 ld_slow;
u64 st_slow;
#endif
u64 pthru_all;
u64 pthru_host;
u64 pthru_bad_aff;
};
enum kvm_exit_types {