KVM: arm64: Track presence of SPE/TRBE in kvm_host_data instead of vCPU

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Add flags to kvm_host_data to track if SPE/TRBE is present +
programmable on a per-CPU basis. Set the flags up at init rather than
vcpu_load() as the programmability of these buffers is unlikely to
change.

Reviewed-by: James Clark <james.clark@linaro.org>
Tested-by: James Clark <james.clark@linaro.org>
Signed-off-by: Oliver Upton <oliver.upton@linux.dev>
Link: https://lore.kernel.org/r/20241219224116.3941496-4-oliver.upton@linux.dev
Signed-off-by: Marc Zyngier <maz@kernel.org>

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This commit is contained in:

Oliver Upton 2024-12-19 14:41:00 -08:00 • committed by Marc Zyngier

parent 2417218f2f

commit 38131c02a5

4 changed files with 24 additions and 42 deletions

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19

arch/arm64/include/asm/kvm_host.h

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3

arch/arm64/kvm/arm.c

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40

arch/arm64/kvm/debug.c

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8

arch/arm64/kvm/hyp/nvhe/debug-sr.c

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