KVM: arm64: Add a helper providing an inlined literal value for ICH_VTR_EL2

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We already have two ways to deal with ICH_VTR_EL2:

- directly read the system register
- read a cached copy in the vgic global state

Add a third way, in the form of an inlined literal value that will
eventually replace all of the above. This literal value is computed
at boot time, and patched in the relevant code locations.

Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://patch.msgid.link/20260721170754.3150521-4-maz@kernel.org
Signed-off-by: Oliver Upton <oupton@kernel.org>

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Marc Zyngier 2026-07-21 18:07:51 +01:00 • committed by Oliver Upton

parent 27a263e1a0

commit 4edfdc8dde

3 changed files with 73 additions and 0 deletions

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arch/arm64/kernel/image-vars.h

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arch/arm64/kvm/vgic/vgic-v3.c

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arch/arm64/kvm/vgic/vgic.h

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