diff options
| author | Alexandru Elisei <alexandru.elisei@arm.com> | 2022-01-27 16:17:57 +0000 |
|---|---|---|
| committer | Marc Zyngier <maz@kernel.org> | 2022-02-08 17:51:21 +0000 |
| commit | db858060b1a788fba03711793dcaff19ea43286c (patch) | |
| tree | 171defca9e6ad849df7718791af2848f949af082 /include/kvm | |
| parent | 46b18782147248b62f00e98a7f87abaf934951e8 (diff) | |
| download | lwn-db858060b1a788fba03711793dcaff19ea43286c.tar.gz lwn-db858060b1a788fba03711793dcaff19ea43286c.zip | |
KVM: arm64: Keep a list of probed PMUs
The ARM PMU driver calls kvm_host_pmu_init() after probing to tell KVM that
a hardware PMU is available for guest emulation. Heterogeneous systems can
have more than one PMU present, and the callback gets called multiple
times, once for each of them. Keep track of all the PMUs available to KVM,
as they're going to be needed later.
Reviewed-by: Reiji Watanabe <reijiw@google.com>
Signed-off-by: Alexandru Elisei <alexandru.elisei@arm.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20220127161759.53553-5-alexandru.elisei@arm.com
Diffstat (limited to 'include/kvm')
| -rw-r--r-- | include/kvm/arm_pmu.h | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/include/kvm/arm_pmu.h b/include/kvm/arm_pmu.h index f9ed4c171d7b..20193416d214 100644 --- a/include/kvm/arm_pmu.h +++ b/include/kvm/arm_pmu.h @@ -29,6 +29,11 @@ struct kvm_pmu { struct irq_work overflow_work; }; +struct arm_pmu_entry { + struct list_head entry; + struct arm_pmu *arm_pmu; +}; + DECLARE_STATIC_KEY_FALSE(kvm_arm_pmu_available); static __always_inline bool kvm_arm_support_pmu_v3(void) |