Re: [PATCH] KVM: arm64: Check for SYSREGS_ON_CPU before accessing the CPU state

On Sun, 20 Jul 2025 11:22:29 +0100, Marc Zyngier wrote:

Mark Brown reports that since we commit to making exceptions visible without the vcpu being loaded, the external abort selftest fails.

Upon investigation, it turns out that the code that makes registers affected by an exception visible to the guest is completely broken on VHE, as we don't check whether the system registers are loaded on the CPU at this point. We managed to get away with this so far, but that's obviously as bad as it gets,

[...]

Applied to next, thanks!

[1/1] KVM: arm64: Check for SYSREGS_ON_CPU before accessing the CPU state https://git.kernel.org/kvmarm/kvmarm/c/c6e35dff58d3

-- Best, Oliver