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KVM: arm64: Log an error if trapping a read-from-write-only GICv3 access
authorMarc Zyngier <marc.zyngier@arm.com>
Fri, 9 Jun 2017 11:49:55 +0000 (12:49 +0100)
committerMarc Zyngier <marc.zyngier@arm.com>
Thu, 15 Jun 2017 08:45:06 +0000 (09:45 +0100)
commita44d5201be5771657e8cb36a1fa69d39186402a1
tree775d0180010de525234429766897b116b09ef769tree | snapshot
parenta9c645ab5742824489b7d7d7edfa7932b69c54a1commit | diff
KVM: arm64: Log an error if trapping a read-from-write-only GICv3 access

A read-from-write-only GICv3 access should UNDEF at EL1. But since
we're in complete paranoia-land with broken CPUs, let's assume the
worse and gracefully handle the case.

Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Reviewed-by: Christoffer Dall <cdall@linaro.org>
Signed-off-by: Christoffer Dall <cdall@linaro.org>
arch/arm64/kvm/sys_regs.c diff | blob | history
virt/kvm/arm/hyp/vgic-v3-sr.c diff | blob | history
Linux Kernel Source Tree.