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| author |   Shannon Zhao <shannon.zhao@linaro.org> | 2016-02-23 11:11:27 +0800 |
|---|---|---|
| committer |   Marc Zyngier <marc.zyngier@arm.com> | 2016-02-29 18:34:20 +0000 |
| commit | 9feb21ac57d53003557ddc01f9aee496269996c7 (patch) | |
| tree | 9a36bbeb24394c0ec290789a71c44532149aeb98 /arch/arm64/include | |
| parent | arm64: KVM: PMU: Add perf event map and introduce perf event creating function (diff) | |
| download | linux-dev-9feb21ac57d53003557ddc01f9aee496269996c7.tar.xz linux-dev-9feb21ac57d53003557ddc01f9aee496269996c7.zip | |
arm64: KVM: Add access handler for event type register
These kind of registers include PMEVTYPERn, PMCCFILTR and PMXEVTYPER
which is mapped to PMEVTYPERn or PMCCFILTR.
The access handler translates all aarch32 register offsets to aarch64
ones and uses vcpu_sys_reg() to access their values to avoid taking care
of big endian.
When writing to these registers, create a perf_event for the selected
event type.
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>
Diffstat (limited to 'arch/arm64/include')
| -rw-r--r-- | arch/arm64/include/asm/kvm_host.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/arch/arm64/include/asm/kvm_host.h b/arch/arm64/include/asm/kvm_host.h index 993793b422aa..121182dd0947 100644 --- a/arch/arm64/include/asm/kvm_host.h +++ b/arch/arm64/include/asm/kvm_host.h @@ -123,6 +123,9 @@ enum vcpu_sysreg { PMEVCNTR0_EL0, /* Event Counter Register (0-30) */ PMEVCNTR30_EL0 = PMEVCNTR0_EL0 + 30, PMCCNTR_EL0, /* Cycle Counter Register */ + PMEVTYPER0_EL0, /* Event Type Register (0-30) */ + PMEVTYPER30_EL0 = PMEVTYPER0_EL0 + 30, + PMCCFILTR_EL0, /* Cycle Count Filter Register */ PMCNTENSET_EL0, /* Count Enable Set Register */ /* 32bit specific registers. Keep them at the end of the range */ |