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Fri, 30 Aug 2024 09:05:25 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1725008730; bh=jTLffhohIxJnzY99/Hvodz5uFraK2Vu7f7rbBUb7RL0=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=HChw5GwJcaBYA0YWU51Sq8KSuPRh1Qzu2RJlo+RjnG0gnt6HvvXNGLSnEMo6bhu/H 5KrS2WWo3ASz7iPKCdmLMbHD8svscNsJSIlxe7BKaZ4/wxEo9tBOBvXzSkgz0AJYpn iHC4GnKqRIowewoJ+Jl/A96N/ImKtYszoY7j8nx3Xg6o9Kmj8UKSQgscBCyDkI3LH2 P5lw6WAkGEBegKDF3l0Omf7fHJhs7x7k4zNj2od0bzeSzhVPYASLGC6AXSGeMbjI1Q CBpXqgx/gO299Yfg1XbGUPFWO3WG6aNjElKht3dNb51IQpPfhsZ1FGLfLJCkinw1uO g59V4OZV0AImQ== Date: Fri, 30 Aug 2024 10:05:22 +0100 From: Will Deacon To: Marc Zyngier Cc: Joey Gouly , linux-arm-kernel@lists.infradead.org, nd@arm.com, akpm@linux-foundation.org, aneesh.kumar@kernel.org, aneesh.kumar@linux.ibm.com, anshuman.khandual@arm.com, bp@alien8.de, broonie@kernel.org, catalin.marinas@arm.com, christophe.leroy@csgroup.eu, dave.hansen@linux.intel.com, hpa@zytor.com, linux-fsdevel@vger.kernel.org, linux-mm@kvack.org, linuxppc-dev@lists.ozlabs.org, mingo@redhat.com, mpe@ellerman.id.au, naveen.n.rao@linux.ibm.com, npiggin@gmail.com, oliver.upton@linux.dev, shuah@kernel.org, skhan@linuxfoundation.org, szabolcs.nagy@arm.com, tglx@linutronix.de, x86@kernel.org, kvmarm@lists.linux.dev, linux-kselftest@vger.kernel.org Subject: Re: [PATCH v5 08/30] KVM: arm64: make kvm_at() take an OP_AT_* Message-ID: <20240830090522.GA7678@willie-the-truck> References: <20240822151113.1479789-1-joey.gouly@arm.com> <20240822151113.1479789-9-joey.gouly@arm.com> <20240823134811.GG32156@willie-the-truck> <86cylqwib5.wl-maz@kernel.org> X-Mailing-List: linuxppc-dev@lists.ozlabs.org List-Id: List-Help: List-Post: List-Subscribe: , , List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <86cylqwib5.wl-maz@kernel.org> User-Agent: Mutt/1.10.1 (2018-07-13) Hey Marc, On Fri, Aug 30, 2024 at 09:01:18AM +0100, Marc Zyngier wrote: > On Fri, 23 Aug 2024 14:48:11 +0100, > Will Deacon wrote: > > > > On Thu, Aug 22, 2024 at 04:10:51PM +0100, Joey Gouly wrote: > > > To allow using newer instructions that current assemblers don't know about, > > > replace the `at` instruction with the underlying SYS instruction. > > > > > > Signed-off-by: Joey Gouly > > > Cc: Marc Zyngier > > > Cc: Oliver Upton > > > Cc: Catalin Marinas > > > Cc: Will Deacon > > > Reviewed-by: Marc Zyngier > > > --- > > > arch/arm64/include/asm/kvm_asm.h | 3 ++- > > > arch/arm64/kvm/hyp/include/hyp/fault.h | 2 +- > > > 2 files changed, 3 insertions(+), 2 deletions(-) > > > > Marc -- what would you like to do with this patch? I think the POE series > > is really close now, so ideally I'd queue the lot on a branch in arm64 > > and you could pull the first ~10 patches into kvmarm if you need 'em. > > > > Would what work for you, or did you have something else in mind (since > > this one is also included in your series adding nv support for AT). > > Is there any progress on this front? I am quite eager to queue the AT > series, but the dependency on this patch is preventing me to do so. > > I can see there are outstanding questions on the POE series, so I was > wondering if we should consider reversing the dependency: I can create > a stable branch with this single patch, which you can pull as a prefix > of the POE series. That sounds like a good idea. The uaccess discussion seems to have stalled and I don't really want to merge the series without concluding that. So please go ahead with this single patch and I'll pull it in if things start moving again. Will