Thread (111 messages) flat view 111 messages, 12 authors, 2d ago

Re: [PATCH v16 22/45] KVM: arm64: CCA: Handle RMI_EXIT_RIPAS_CHANGE

From: Marc Zyngier <maz@kernel.org>
Date: 2026-09-07 10:10:52
Also in: kvm, kvmarm, linux-arm-kernel, lkml

On Mon, 07 Sep 2026 06:05:29 +0100,
Kohei Enju [off-list ref] wrote:

[...]
Although the root cause is an RMM bug, should we also guard RIPAS_SET
against this no-progress case?
No. We really should *prevent* the kernel from using a known broken
RMM. Which brings me to one of my long standing request: how to we
enforce the minimum version of RMM that KVM is willing to work with?

We absolutely need to have a hard deprecation mechanism in place
before day-1.

	M.

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