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From: Catalin Marinas <>
To: Mark Brown <>
Cc: Will Deacon <>,,
	Marc Zyngier <>
Subject: Re: [PATCH] arm64: Document requirement for access to FEAT_HCX
Date: Fri, 14 May 2021 12:01:14 +0100	[thread overview]
Message-ID: <> (raw)
In-Reply-To: <>

On Wed, May 12, 2021 at 05:23:50PM +0100, Mark Brown wrote:
> v8.7 of the architecture introduced FEAT_HCX which adds an additional
> hypervisor configuration register HCRX_EL2. Even though Linux does not
> currently make use of this feature let's document that the EL3 trap for
> access to the register should be disabled so that we are able to make
> use of it in future.
> Signed-off-by: Mark Brown <>

Acked-by: Catalin Marinas <>

linux-arm-kernel mailing list

  reply	other threads:[~2021-05-14 11:02 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-05-12 16:23 [PATCH] arm64: Document requirement for access to FEAT_HCX Mark Brown
2021-05-14 11:01 ` Catalin Marinas [this message]
2021-05-25 18:58 ` Will Deacon

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