linux-kernel - Re: [PATCH 0/2] KVM: arm64: Control visibility of S1PIE related sysregs to userspace

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Message-ID: <5304749b-04c8-44f4-b4de-b2d0cef61169@sirena.org.uk>
Date: Wed, 21 Aug 2024 16:19:59 +0100
From: Mark Brown <broonie@...nel.org>
To: Marc Zyngier <maz@...nel.org>
Cc: Oliver Upton <oliver.upton@...ux.dev>,
	James Morse <james.morse@....com>,
	Suzuki K Poulose <suzuki.poulose@....com>,
	Catalin Marinas <catalin.marinas@....com>,
	Will Deacon <will@...nel.org>, Joey Gouly <joey.gouly@....com>,
	linux-arm-kernel@...ts.infradead.org, kvmarm@...ts.linux.dev,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH 0/2] KVM: arm64: Control visibility of S1PIE related
 sysregs to userspace

On Wed, Aug 21, 2024 at 03:45:20PM +0100, Marc Zyngier wrote:

> Ultimately, we need to revisit the way we deal with visibility, as
> adding a myriad of helpers checking a combination of features doesn't
> scale. That information should exist as a static table, just like the
> trap bits.

Indeed, I was wondering about just adding a description of the relevant
ID register field to the sys_regs table.

> But until then, that's probably the way.

OK.

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