KVM: arm64: Extend unified RESx handling to runtime sanitisation

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Add a new helper to retrieve the RESx values for a given system
register, and use it for the runtime sanitisation.

This results in slightly better code generation for a fairly hot
path in the hypervisor, and additionally covers all sanitised
registers in all conditions, not just the VNCR-based ones.

Reviewed-by: Fuad Tabba <tabba@google.com>
Tested-by: Fuad Tabba <tabba@google.com>
Link: https://patch.msgid.link/20260202184329.2724080-6-maz@kernel.org
Signed-off-by: Marc Zyngier <maz@kernel.org>

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This commit is contained in:

Marc Zyngier 2026-02-02 18:43:14 +00:00

parent 0879478913

commit f9d5895642

3 changed files with 20 additions and 18 deletions

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15

arch/arm64/include/asm/kvm_host.h

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10

arch/arm64/kvm/emulate-nested.c

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13

arch/arm64/kvm/nested.c

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