smccc/kvm_guest: Enable errata based on implementation CPUs

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Retrieve any migration target implementation CPUs using the hypercall
and enable associated errata.

Reviewed-by: Cornelia Huck <cohuck@redhat.com>
Reviewed-by: Sebastian Ott <sebott@redhat.com>
Signed-off-by: Shameer Kolothum <shameerali.kolothum.thodi@huawei.com>
Acked-by: Catalin Marinas <catalin.marinas@arm.com>
Link: https://lore.kernel.org/r/20250221140229.12588-6-shameerali.kolothum.thodi@huawei.com
Signed-off-by: Oliver Upton <oliver.upton@linux.dev>

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Shameer Kolothum 2025-02-21 14:02:28 +00:00 • committed by Oliver Upton

parent c8c2647e69

commit 86edf6bdcf

5 changed files with 114 additions and 5 deletions

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7

arch/arm64/include/asm/cputype.h

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1

arch/arm64/include/asm/hypervisor.h

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45

arch/arm64/kernel/cpu_errata.c

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2

arch/arm64/kernel/cpufeature.c

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64

drivers/firmware/smccc/kvm_guest.c

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