KVM: arm64: Mask out filtered events in PCMEID{0,1}_EL1

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As we can now hide events from the guest, let's also adjust its view of
PCMEID{0,1}_EL1 so that it can figure out why some common events are not
counting as they should.

The astute user can still look into the TRM for their CPU and find out
they've been cheated, though. Nobody's perfect.

Signed-off-by: Marc Zyngier <maz@kernel.org>

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This commit is contained in:

Marc Zyngier 2020-03-12 16:11:24 +00:00

parent d7eec2360e

commit 88865beca9

3 changed files with 35 additions and 4 deletions

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29

arch/arm64/kvm/pmu-emul.c

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5

arch/arm64/kvm/sys_regs.c

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5

include/kvm/arm_pmu.h

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