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Fri, 19 Mar 2021 05:45:23 -0400 (EDT) Date: Fri, 19 Mar 2021 10:45:21 +0100 From: Greg KH To: Sasha Levin Cc: Will Deacon , 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: X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20210319_094531_248900_2D0B3EB9 X-CRM114-Status: GOOD ( 21.28 ) 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-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org On Thu, Mar 18, 2021 at 08:57:00AM -0400, Sasha Levin wrote: > 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. I don't see it, so I've added it as well... thanks, greg k-h _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel