Re: [PATCH] KVM: arm64: Avoid corrupting vCPU context register in guest exit

On Fri, 26 Feb 2021 18:12:11 +0000, Will Deacon wrote:

Commit 7db21530479f ("KVM: arm64: Restore hyp when panicking in guest context") tracks the currently running vCPU, clearing the pointer to NULL on exit from a guest.

Unfortunately, the use of 'set_loaded_vcpu' clobbers x1 to point at the kvm_hyp_ctxt instead of the vCPU context, causing the subsequent RAS code to go off into the weeds when it saves the DISR assuming that the CPU context is embedded in a struct vCPU.

[...]

Applied to kvmarm-master/fixes, thanks!

[1/1] KVM: arm64: Avoid corrupting vCPU context register in guest exit commit: a8a0f5dbcdf57d89bb8d555c6423763d99a156c1

Cheers,

M.