[PATCH v2 0/2] KVM: arm64: Uphold 64bit-only behavior on asymmetric systems

Marc Zyngier maz at kernel.org
Wed Aug 17 02:33:35 PDT 2022


On Tue, 16 Aug 2022 19:25:52 +0000, Oliver Upton wrote:
> Small series to fix a couple issues around when 64bit-only behavior is
> applied. As KVM is more restrictive than the kernel in terms of 32bit
> support (no asymmetry), we really needed our own predicate when the
> meaning of system_supports_32bit_el0() changed in commit 2122a833316f
> ("arm64: Allow mismatched 32-bit EL0 support").
> 
> Lightly tested as I do not have any asymmetric systems on hand at the
> moment. Attention on patch 2 would be appreciated as it affects ABI.
> 
> [...]

Applied to fixes, thanks!

[1/2] KVM: arm64: Treat PMCR_EL1.LC as RES1 on asymmetric systems
      commit: f3c6efc72f3b20ec23566e768979802f0a398f04
[2/2] KVM: arm64: Reject 32bit user PSTATE on asymmetric systems
      commit: b10d86fb8e46cc812171728bcd326df2f34e9ed5

Cheers,

	M.
-- 
Marc Zyngier <maz at kernel.org>




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