[PATCH v6 0/2] KVM: arm64: mixed-width check should be skipped for uninitialized vCPUs

[Marc Zyngier]

On Mon, 28 Mar 2022 20:19:22 -0700, Reiji Watanabe wrote:
> KVM allows userspace to configure either all EL1 32bit or 64bit vCPUs
> for a guest.  At vCPU reset, vcpu_allowed_register_width() checks
> if the vcpu's register width is consistent with all other vCPUs'.
> Since the checking is done even against vCPUs that are not initialized
> (KVM_ARM_VCPU_INIT has not been done) yet, the uninitialized vCPUs
> are erroneously treated as 64bit vCPU, which causes the function to
> incorrectly detect a mixed-width VM.
> 
> [...]

Applied to fixes, thanks!

[1/2] KVM: arm64: mixed-width check should be skipped for uninitialized vCPUs
      commit: 26bf74bd9f6ff0f1545b4f0c92a37c232d076014
[2/2] KVM: arm64: selftests: Introduce vcpu_width_config
      commit: 2f5d27e6cf14efe652748bad89ee529ed5a5d577

Note that I have somewhat tweaked the first patch to my own liking.

Cheers,

	M.
-- 
Without deviation from the norm, progress is not possible.