arm64: KVM: Add access handler for PMSWINC register
Add access handler which emulates writing and reading PMSWINC
register and add support for creating software increment event.
Signed-off-by: Shannon Zhao <shannon.zhao@linaro.org>
Reviewed-by: Andrew Jones <drjones@redhat.com>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
diff --git a/arch/arm64/include/asm/kvm_host.h b/arch/arm64/include/asm/kvm_host.h
index 6c61a2b..4001e85 100644
--- a/arch/arm64/include/asm/kvm_host.h
+++ b/arch/arm64/include/asm/kvm_host.h
@@ -129,6 +129,7 @@
PMCNTENSET_EL0, /* Count Enable Set Register */
PMINTENSET_EL1, /* Interrupt Enable Set Register */
PMOVSSET_EL0, /* Overflow Flag Status Set Register */
+ PMSWINC_EL0, /* Software Increment Register */
/* 32bit specific registers. Keep them at the end of the range */
DACR32_EL2, /* Domain Access Control Register */
diff --git a/arch/arm64/include/asm/kvm_perf_event.h b/arch/arm64/include/asm/kvm_perf_event.h
index d1c9d50..62fa60f 100644
--- a/arch/arm64/include/asm/kvm_perf_event.h
+++ b/arch/arm64/include/asm/kvm_perf_event.h
@@ -45,6 +45,8 @@
#define ARMV8_PMU_EVTYPE_MASK 0xc80003ff /* Mask for writable bits */
#define ARMV8_PMU_EVTYPE_EVENT 0x3ff /* Mask for EVENT bits */
+#define ARMV8_PMU_EVTYPE_EVENT_SW_INCR 0 /* Software increment event */
+
/*
* Event filters for PMUv3
*/