Re: [PATCH v9 04/29] arm64: kvm: mte: Hide the MTE CPUID information from the guests

Marc Zyngier
2020-09-04T10:50:23Z

On Fri, 04 Sep 2020 11:30:04 +0100,
Catalin Marinas <catalin.marinas@arm.com> wrote:
>
> KVM does not support MTE in guests yet, so clear the corresponding field
> in the ID_AA64PFR1_EL1 register. In addition, inject an undefined
> exception in the guest if it accesses one of the GCR_EL1, RGSR_EL1,
> TFSR_EL1 or TFSRE0_EL1 registers. While the emulate_sys_reg() function
> already injects an undefined exception, this patch prevents the
> unnecessary printk.
>
> Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
> Cc: Marc Zyngier <maz@kernel.org>
> Cc: Steven Price <steven.price@arm.com>

Acked-by: Marc Zyngier <maz@kernel.org>

M.

--
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