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Thu, 18 Mar 2021 12:59:11 +0000 Received: from mail.kernel.org ([198.145.29.99]) by desiato.infradead.org with esmtps (Exim 4.94 #2 (Red Hat Linux)) id 1lMsD3-005HHi-LZ for linux-arm-kernel@lists.infradead.org; Thu, 18 Mar 2021 12:59:07 +0000 Received: by mail.kernel.org (Postfix) with ESMTPSA id C892464E28; Thu, 18 Mar 2021 12:57:01 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1616072222; bh=QM1fCH9+yvE1msPa2fUjwKePuiAxlHmW2l1xQy/WFqc=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=OPwlrSaIcEpUkAMbAGSntvmHL6qLaPXpOw/TEnMZApdmFurbtBjSqn3xeWfiQgWTy v1LXKWuKD7lUeFLThyxsXw6Sjke2/kkJ+ODDAFOi9kZtF+amXwVV87GJ6FSyTE499G lUbNeUcMYzltvYkwyYNkFHNaYhKO2lNgJ0kqiGAEJuRWNqK1SksqCzNvKtxA03Y0AB bHf2NxWjpIhPImyOqoQ8TPD6pJmHfwuP7WivR6QlrdMSkaxoCLisc9AS8tuCyB9Xwc Z/V8bG7nY0e8G3Wt+jy2UWw3eFay2xBBh5ChVCir1j+37kUiId/PWKupOHZSkv+zVZ 0gn8tags78KSg== Date: Thu, 18 Mar 2021 08:57:00 -0400 From: Sasha Levin To: Will Deacon Cc: Vladimir Murzin , linux-arm-kernel@lists.infradead.org, stable@vger.kernel.org, catalin.marinas@arm.com, maz@kernel.org, dbrazdil@google.com Subject: Re: [PATCH v2][for-stable-v5.11] arm64: Unconditionally set virtual cpu id registers Message-ID: References: <20210316134319.89472-1-vladimir.murzin@arm.com> <20210317132614.GB5225@willie-the-truck> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <20210317132614.GB5225@willie-the-truck> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20210318_125906_165358_BFA71C61 X-CRM114-Status: GOOD ( 12.84 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Transfer-Encoding: 7bit Content-Type: text/plain; charset="us-ascii"; Format="flowed" Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org On Wed, Mar 17, 2021 at 01:26:15PM +0000, Will Deacon wrote: >On Tue, Mar 16, 2021 at 01:43:19PM +0000, Vladimir Murzin wrote: >> Commit 78869f0f0552 ("arm64: Extract parts of el2_setup into a macro") >> reorganized el2 setup in such way that virtual cpu id registers set >> only in nVHE, yet they used (and need) to be set irrespective VHE >> support. >> >> Fixes: 78869f0f0552 ("arm64: Extract parts of el2_setup into a macro") >> Signed-off-by: Vladimir Murzin >> --- >> Changelog >> >> v1 -> v2 >> - Drop the reference to 32bit guests from commit message (per Marc) >> >> There is no upstream fix since issue went away due to code there has >> been reworked in 5.12: nVHE comes first, so virtual cpu id register >> are always set. >> >> Maintainers, please, Ack. >> >> arch/arm64/include/asm/el2_setup.h | 4 ++-- >> 1 file changed, 2 insertions(+), 2 deletions(-) > >Acked-by: Will Deacon > >It's a bit weird to have a patch in stable that isn't upstream, but I don't >see a better option here. Yes, I'd agree here - the commits that would need to be backported look way too invasive. I've queued it up, thanks. -- Thanks, Sasha _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel