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KVM: arm64: Make ID_AA64PFR0_EL1.RAS writable
authorMarc Zyngier <maz@kernel.org>
Sun, 17 Aug 2025 20:21:56 +0000 (21:21 +0100)
committerOliver Upton <oliver.upton@linux.dev>
Thu, 21 Aug 2025 23:28:46 +0000 (16:28 -0700)
commit1fab657cb2a07889c343302fbebca035e702683e
tree608f962343ea2b18a2e6bd30c12f0cf2de0e9d6btree | snapshot
parent9049fb1227a2d1ab8515788c8553232966380248commit | diff
KVM: arm64: Make ID_AA64PFR0_EL1.RAS writable

Make ID_AA64PFR0_EL1.RAS writable so that we can restore a VM from
a system without RAS to a RAS-equipped machine (or disable RAS
in the guest).

Signed-off-by: Marc Zyngier <maz@kernel.org>
Reviewed-by: Cornelia Huck <cohuck@redhat.com>
Link: https://lore.kernel.org/r/20250817202158.395078-5-maz@kernel.org
Signed-off-by: Oliver Upton <oliver.upton@linux.dev>
arch/arm64/kvm/sys_regs.c diff | blob | history
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