From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 04F4E356A08; Wed, 18 Mar 2026 17:48:45 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1773856126; cv=none; b=Vo0llAQTmfbXgNJSIswES2wqoqJoKSY+Kh/tel0Gp7D0GS3akvVbtu8y1Vwsaqg1VLkGP/C5yweUfyRFwuknvaa9vx5DLB5ZyE7t1m4598n3PRCqxCiGbZVqLWK2qrTG/CmASyL/q8XsPc4+/tG79K2shTznzWlJM1q6AOrBTSo= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1773856126; c=relaxed/simple; bh=n0MnqJl2TOeHEpAg4OVfr0lxtUkQnytUwf9VSMN6vPY=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=Gf9FKAwuslq5rydqOpETjBmeXHLqbcFjV9EKdUFV5XfofysopRZNJ9F6MXBmjPWEGuIlm73/aDfJWQV3Q6JZ+k+kmDvMJJppk+bHnLEcMyikUdxLAY2vYifda/JBLnq9E0FZN+AWa6E3riS9IBtTH9h3C22RhZgET+JDApVV5Os= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=LOgv1+2m; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="LOgv1+2m" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 2EAB6C19421; Wed, 18 Mar 2026 17:48:40 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1773856125; bh=n0MnqJl2TOeHEpAg4OVfr0lxtUkQnytUwf9VSMN6vPY=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=LOgv1+2mwpavGPO2QlnbCxclonKXFB+AxWUsJ01xE2+V1JtCkdsmGshS45GkRQh9u 2onntOOl8y4ZGEgr8OWwunDZjjHOQCYviLUb8rxV+ku/0xxTlsZKwIlxeyJ7px12Mu 86Xx/KDpcj4jMK0Ad+eAad6UyNB+GGaJyzn2FDDJxMd6jVUgIlYZTtM270S7PSSGYi kWXd4e5jqIWXmza/mPZOj5lKKU7KimXD2JFJVD/NXdWvgbpko28vf/s+QdyuTnkIiR G+gN0Zi9dVfhR/megVQkY4HRAtwPvz4Zw3IGRBL1tEeiAb0yOC/YQZj021qQ4eYBbF N4HApQJcXAZ2g== Date: Wed, 18 Mar 2026 17:48:57 +0000 From: Jean-Philippe Brucker To: Mark Brown Cc: Marc Zyngier , Joey Gouly , Catalin Marinas , Suzuki K Poulose , Will Deacon , Paolo Bonzini , Jonathan Corbet , Shuah Khan , Oliver Upton , Dave Martin , Fuad Tabba , Mark Rutland , Ben Horgan , linux-arm-kernel@lists.infradead.org, kvmarm@lists.linux.dev, linux-kernel@vger.kernel.org, kvm@vger.kernel.org, linux-doc@vger.kernel.org, linux-kselftest@vger.kernel.org, Peter Maydell , Eric Auger Subject: Re: [PATCH v10 11/30] KVM: arm64: Store vector lengths in an array Message-ID: <20260318174857.GI2390801@myrica> References: <20260306-kvm-arm64-sme-v10-0-43f7683a0fb7@kernel.org> <20260306-kvm-arm64-sme-v10-11-43f7683a0fb7@kernel.org> Precedence: bulk X-Mailing-List: linux-doc@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20260306-kvm-arm64-sme-v10-11-43f7683a0fb7@kernel.org> On Fri, Mar 06, 2026 at 05:01:03PM +0000, Mark Brown wrote: > SME adds a second vector length configured in a very similar way to the > SVE vector length, in order to facilitate future code sharing for SME > refactor our storage of vector lengths to use an array like the host does. > We do not yet take much advantage of this so the intermediate code is not > as clean as might be. > > No functional change. > > Reviewed-by: Fuad Tabba > Signed-off-by: Mark Brown > --- > arch/arm64/include/asm/kvm_host.h | 17 +++++++++++------ > arch/arm64/include/asm/kvm_hyp.h | 2 +- > arch/arm64/include/asm/kvm_pkvm.h | 2 +- > arch/arm64/kvm/fpsimd.c | 2 +- > arch/arm64/kvm/guest.c | 6 +++--- > arch/arm64/kvm/hyp/include/hyp/switch.h | 6 +++--- > arch/arm64/kvm/hyp/nvhe/hyp-main.c | 6 +++--- > arch/arm64/kvm/hyp/nvhe/pkvm.c | 7 ++++--- > arch/arm64/kvm/reset.c | 22 +++++++++++----------- > 9 files changed, 38 insertions(+), 32 deletions(-) > > diff --git a/arch/arm64/include/asm/kvm_host.h b/arch/arm64/include/asm/kvm_host.h > index 906dbefc5b33..3c30c1a70429 100644 > --- a/arch/arm64/include/asm/kvm_host.h > +++ b/arch/arm64/include/asm/kvm_host.h > @@ -77,8 +77,10 @@ enum kvm_mode kvm_get_mode(void); > static inline enum kvm_mode kvm_get_mode(void) { return KVM_MODE_NONE; }; > #endif > > -extern unsigned int __ro_after_init kvm_sve_max_vl; > -extern unsigned int __ro_after_init kvm_host_sve_max_vl; > +extern unsigned int __ro_after_init kvm_max_vl[ARM64_VEC_MAX]; > +extern unsigned int __ro_after_init kvm_host_max_vl[ARM64_VEC_MAX]; > +DECLARE_STATIC_KEY_FALSE(userspace_irqchip_in_use); A rebase issue here, rest looks good Thanks, Jean