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linux/include/kvm
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Oliver Upton e89c928bed KVM: arm64: Fix host-programmed guest events in nVHE 
Programming PMU events in the host that count during guest execution is
a feature supported by perf, e.g.

  perf stat -e cpu_cycles:G ./lkvm run

While this works for VHE, the guest/host event bitmaps are not carried
through to the hypervisor in the nVHE configuration. Make
kvm_pmu_update_vcpu_events() conditional on whether or not _hardware_
supports PMUv3 rather than if the vCPU as vPMU enabled.

Cc: stable@vger.kernel.org
Fixes: 84d751a019 ("KVM: arm64: Pass pmu events to hyp via vcpu")
Reviewed-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20240305184840.636212-3-oliver.upton@linux.dev
Signed-off-by: Oliver Upton <oliver.upton@linux.dev>
History 2024-03-26 01:51:44 -07:00
..
arm_arch_timer.h KVM/arm64 updates for 6.7 2023-10-31 16:37:07 -04:00
arm_hypercalls.h KVM: arm64: Introduce support for userspace SMCCC filtering 2023-04-05 12:07:41 +01:00
arm_pmu.h KVM: arm64: Fix host-programmed guest events in nVHE 2024-03-26 01:51:44 -07:00
arm_psci.h KVM: arm64: Get rid of vCPU-scoped feature bitmap 2023-09-21 18:13:29 +00:00
arm_vgic.h KVM: arm64: vgic: Free LPI vgic_irq structs in an RCU-safe manner 2024-02-23 21:46:02 +00:00
iodev.h KVM: destruct kvm_io_device while unregistering it from kvm_io_bus 2023-06-13 14:18:09 -07:00