Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-8.5 required=3.0 tests=BAYES_00,DKIM_ADSP_CUSTOM_MED, DKIM_INVALID,DKIM_SIGNED,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 44B08C433E0 for ; Tue, 16 Mar 2021 10:31:55 +0000 (UTC) Received: from mm01.cs.columbia.edu (mm01.cs.columbia.edu [128.59.11.253]) by mail.kernel.org (Postfix) with ESMTP id 6B8B66502A for ; Tue, 16 Mar 2021 10:31:54 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 6B8B66502A Authentication-Results: mail.kernel.org; dmarc=fail (p=reject dis=none) header.from=google.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=kvmarm-bounces@lists.cs.columbia.edu Received: from localhost (localhost [127.0.0.1]) by mm01.cs.columbia.edu (Postfix) with ESMTP id C87834B604; Tue, 16 Mar 2021 06:31:53 -0400 (EDT) X-Virus-Scanned: at lists.cs.columbia.edu Authentication-Results: mm01.cs.columbia.edu (amavisd-new); dkim=softfail (fail, message has been altered) header.i=@google.com Received: from mm01.cs.columbia.edu ([127.0.0.1]) by localhost (mm01.cs.columbia.edu [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id VCy5068Ul4zr; Tue, 16 Mar 2021 06:31:52 -0400 (EDT) Received: from mm01.cs.columbia.edu (localhost [127.0.0.1]) by mm01.cs.columbia.edu (Postfix) with ESMTP id B6E4B4B5D6; Tue, 16 Mar 2021 06:31:52 -0400 (EDT) Received: from localhost (localhost [127.0.0.1]) by mm01.cs.columbia.edu (Postfix) with ESMTP id 0AD364B5D6 for ; Tue, 16 Mar 2021 06:31:51 -0400 (EDT) X-Virus-Scanned: at lists.cs.columbia.edu Received: from mm01.cs.columbia.edu ([127.0.0.1]) by localhost (mm01.cs.columbia.edu [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id ZNNgG9Uw735B for ; Tue, 16 Mar 2021 06:31:50 -0400 (EDT) Received: from mail-wr1-f42.google.com (mail-wr1-f42.google.com [209.85.221.42]) by mm01.cs.columbia.edu (Postfix) with ESMTPS id 19CDF4B407 for ; Tue, 16 Mar 2021 06:31:50 -0400 (EDT) Received: by mail-wr1-f42.google.com with SMTP id x13so7143315wrs.9 for ; Tue, 16 Mar 2021 03:31:50 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20161025; h=date:from:to:cc:subject:message-id:references:mime-version :content-disposition:in-reply-to; bh=nidvh/89tn+Y/HVhz7QTE7lN1pMSoiQsRzITbdZvVck=; b=W1RROg28NSJY+h0JNcBa2OvIgqaoB2tDMiJU6Yuc1AWATHeOV/W7nAGnC706xuhnRg Y92LTO9v79rp5ZibisFG/OJXd1QSQsDUqLPYsba8dZx5W1og0IRzlUqMVm/Z7Ld7O8Pu ueWROCrphU1orMKIERU6TjPyZLuRJdEPKmsUKTyjpTkrJk/QiHEcaEBsASeatZkRJwI4 zSqUBkLUmYjBtJv9M2MLl6MXRgwC5JHcFxprBmGIF5U6uDou5yifMF8RfGwWXEHog6i5 Mzyl0VryqajrdJXkE/dw5iNFe47bk2QbScCn5nbuIWb0nSSurj/ZuiWicIY7YZe/kAmD vExw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:date:from:to:cc:subject:message-id:references :mime-version:content-disposition:in-reply-to; bh=nidvh/89tn+Y/HVhz7QTE7lN1pMSoiQsRzITbdZvVck=; b=OJVzCpcMtaoxGqmJwROGmLtEwHPXWppFoH/JQrVZp4v63CRwSP6xJOBk5U319pSxd4 lNuKD/J8KX7dkSgIyx2n49eoxzlBm06YCle2R7WK0o9zn0QcNLExfdFOHhUV5pBjchg/ 1TwgfAyM7T1VDvBz7pyH2nXy/O1RJiry3Ty36cs9qNhMVzoSh6SZrhJy7RXXYL5X77hx GiGx5d5OasevD6E1RRX99vJlUwL9buJe/Jp4EQWJ8M50V8ldstKk+Fv05hJiOFCg8/jh rZWqXFK8rdTtwYXzykykg1Ggc1gIwnCFumzykKX80fYUrEooE/ppXUbhXLA0EriFja1K KM5g== X-Gm-Message-State: AOAM532MKviQHdBxqpoSoeNCuTWulaTYQFooyqHdhxX4HNHrDE4t06T4 CnAQqy2h36HWcZR1wNq1n/u1PQ== X-Google-Smtp-Source: ABdhPJz9EQO1Z6JuVEny9FQp/kgBd99pD2l8NgikvLXqL/mEIHDS8WGg/zebhRv8UldsnFywXQplgg== X-Received: by 2002:a5d:400f:: with SMTP id n15mr4028400wrp.89.1615890709026; Tue, 16 Mar 2021 03:31:49 -0700 (PDT) Received: from google.com (230.69.233.35.bc.googleusercontent.com. [35.233.69.230]) by smtp.gmail.com with ESMTPSA id s18sm24967422wrr.27.2021.03.16.03.31.48 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 16 Mar 2021 03:31:48 -0700 (PDT) Date: Tue, 16 Mar 2021 10:31:46 +0000 From: Quentin Perret To: Marc Zyngier Subject: Re: [PATCH 01/10] KVM: arm64: Provide KVM's own save/restore SVE primitives Message-ID: References: <20210316101312.102925-1-maz@kernel.org> <20210316101312.102925-2-maz@kernel.org> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <20210316101312.102925-2-maz@kernel.org> Cc: kernel-team@android.com, kvm@vger.kernel.org, Catalin Marinas , kvmarm@lists.cs.columbia.edu, broonie@kernel.org, Will Deacon , dave.martin@arm.com, linux-arm-kernel@lists.infradead.org, daniel.kiss@arm.com X-BeenThere: kvmarm@lists.cs.columbia.edu X-Mailman-Version: 2.1.14 Precedence: list List-Id: Where KVM/ARM decisions are made List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Errors-To: kvmarm-bounces@lists.cs.columbia.edu Sender: kvmarm-bounces@lists.cs.columbia.edu On Tuesday 16 Mar 2021 at 10:13:03 (+0000), Marc Zyngier wrote: > diff --git a/arch/arm64/kvm/hyp/fpsimd.S b/arch/arm64/kvm/hyp/fpsimd.S > index 01f114aa47b0..e4010d1acb79 100644 > --- a/arch/arm64/kvm/hyp/fpsimd.S > +++ b/arch/arm64/kvm/hyp/fpsimd.S > @@ -19,3 +19,13 @@ SYM_FUNC_START(__fpsimd_restore_state) > fpsimd_restore x0, 1 > ret > SYM_FUNC_END(__fpsimd_restore_state) > + > +SYM_FUNC_START(__sve_restore_state) > + sve_load 0, x1, x2, 3, x4 > + ret > +SYM_FUNC_END(__sve_restore_state) Nit: maybe this could be named __sve_load_state() for consistency with the EL1 version? > +SYM_FUNC_START(__sve_save_state) > + sve_save 0, x1, 2 > + ret > +SYM_FUNC_END(__sve_restore_state) SYM_FUNC_END(__sve_save_state) here? Thanks, Quentin _______________________________________________ kvmarm mailing list kvmarm@lists.cs.columbia.edu https://lists.cs.columbia.edu/mailman/listinfo/kvmarm