linux-kernel - Re: [PATCH] arm64: Disable EL2 traps for BRBE instructions executed in EL1

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Message-ID: <cf89b848-a2a4-6ce8-ed1f-c70521d1ec9d@arm.com>
Date:   Mon, 27 Mar 2023 11:35:12 +0530
From:   Anshuman Khandual <anshuman.khandual@....com>
To:     Mark Brown <broonie@...nel.org>
Cc:     linux-arm-kernel@...ts.infradead.org,
        Catalin Marinas <catalin.marinas@....com>,
        Will Deacon <will@...nel.org>, Marc Zyngier <maz@...nel.org>,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH] arm64: Disable EL2 traps for BRBE instructions executed
 in EL1



On 3/24/23 17:25, Mark Brown wrote:
> On Fri, Mar 24, 2023 at 11:21:27AM +0530, Anshuman Khandual wrote:
> 
>> This disables EL2 traps for BRBE instructions executed in EL1. This would
>> enable BRBE to be configured and used successfully in the guest kernel.
> 
> We should probably update booting.rst too.

Sure, will updated as required, for SYS_HFGITR_EL2's BRBE fields.