From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from mm01.cs.columbia.edu (mm01.cs.columbia.edu [128.59.11.253]) by smtp.lore.kernel.org (Postfix) with ESMTP id BC8CFC433F5 for ; Thu, 17 Mar 2022 09:28:58 +0000 (UTC) Received: from localhost (localhost [127.0.0.1]) by mm01.cs.columbia.edu (Postfix) with ESMTP id 9A3B149F5B; Thu, 17 Mar 2022 05:28:58 -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=@linaro.org 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 pVSwMtbZ5MHg; Thu, 17 Mar 2022 05:28:57 -0400 (EDT) Received: from mm01.cs.columbia.edu (localhost [127.0.0.1]) by mm01.cs.columbia.edu (Postfix) with ESMTP id 4EBC64B08D; Thu, 17 Mar 2022 05:28:52 -0400 (EDT) Received: from localhost (localhost [127.0.0.1]) by mm01.cs.columbia.edu (Postfix) with ESMTP id E1A5049EFC for ; Wed, 16 Mar 2022 18:39:33 -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 IiP1Qq4f4J0d for ; Wed, 16 Mar 2022 18:39:32 -0400 (EDT) Received: from mail-oo1-f51.google.com (mail-oo1-f51.google.com [209.85.161.51]) by mm01.cs.columbia.edu (Postfix) with ESMTPS id CD97D49EFB for ; Wed, 16 Mar 2022 18:39:32 -0400 (EDT) Received: by mail-oo1-f51.google.com with SMTP id g5-20020a4ae885000000b003240bc9b2afso4430655ooe.10 for ; Wed, 16 Mar 2022 15:39:32 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; h=references:user-agent:from:to:cc:subject:date:in-reply-to :message-id:mime-version; bh=1+QbwgDl1LJslolUIJ7aexnhE/1LwjAWswIgk1iXd24=; b=xzzNr7XnXnHN9KieNsWW12uHCOnL1fvC5NJz2h9xZHzRho5cO/9nl2sPy+zpi89PBw t90jzK1RBl4EyUSMsVIuuw+T2Nw1vvRfuwtMNgivb6kL9jlZTKmHbeJK0MuJX6P+sQOm p9AVmuXrFwKy3HW/IwJkQRC8uSeBuS9JpgzPvcswFNxTZYoj+XYlT/vRBMS9rxbKSzi6 fOnJyNYN0yTqvLdAD5OCLWSpyAdYtt3HvAZvoasf8hWMND+Qy+jeJ6NllsSE8mP8iXUL X6rudyfiV07RrbdjldFxbQi8+RJuE2aavPChDRaUKQwLFP/OfsoW/UUiRBLMRfjRDVhQ luRw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:references:user-agent:from:to:cc:subject:date :in-reply-to:message-id:mime-version; bh=1+QbwgDl1LJslolUIJ7aexnhE/1LwjAWswIgk1iXd24=; b=X1j8m1jXCYisvb9BxQluWbM77qLA/sk4Ft54EGITHEBkUqXOvuKu45xpvRXCmJ3f6j c9Iv9Osk1Me3pOZS4GIqvjHFl5pVSfu/52LR/NM1AxEIvdiA91jVJogyJheQ/7n/MJFW tSoxDVCVpQ/rdu41ejAjOfCeb+IHU54y5EUP6Og8exlykeMOE9ip2nahJFwjdT30dCbn aNPeBSME0e2qqcA59rKlvyqT0Cfs6QOoWm4jlHPxat265N5JzSAgUrRBaoINSjAmWhOG nTV/igQsrBMWbsWU/5NBGEdKOCp3hreQBVcjWHWJEHrM8azG22f0Ge7BZRBSZESkfKIz edug== X-Gm-Message-State: AOAM532D9F5FxRajvZE7rm9/ErARLBE4ObORnDbxXF5B5JcUf1GHi/hw WAXMP91W1Og3YRJktKNLCUUGKw== X-Google-Smtp-Source: ABdhPJxCOYtAyq6RuYOy4M7ev+ABARQur36mgrpikApcM4DwinFa1ybZoRDFPU3zAD2BCczsS2YIug== X-Received: by 2002:a05:6870:d10e:b0:dd:a653:a25 with SMTP id e14-20020a056870d10e00b000dda6530a25mr1837976oac.299.1647470372180; Wed, 16 Mar 2022 15:39:32 -0700 (PDT) Received: from localhost ([2804:14d:7e39:8470:b171:978c:2a42:8690]) by smtp.gmail.com with ESMTPSA id p8-20020a0568301cc800b005b2259500e2sm1550391otg.25.2022.03.16.15.39.31 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 16 Mar 2022 15:39:31 -0700 (PDT) References: <20220225165923.1474372-1-broonie@kernel.org> <20220225165923.1474372-21-broonie@kernel.org> User-agent: mu4e 1.6.10; emacs 27.2 From: Thiago Jung Bauermann To: Mark Brown Subject: Re: [PATCH v12 20/40] arm64/sme: Implement streaming SVE signal handling Date: Wed, 16 Mar 2022 19:38:30 -0300 In-reply-to: <20220225165923.1474372-21-broonie@kernel.org> Message-ID: <84v8wdbjz4.fsf@linaro.org> MIME-Version: 1.0 X-Mailman-Approved-At: Thu, 17 Mar 2022 05:28:50 -0400 Cc: Marc Zyngier , Basant Kumar Dwivedi , Will Deacon , Luis Machado , Szabolcs Nagy , Catalin Marinas , Alan Hayward , linux-arm-kernel@lists.infradead.org, linux-kselftest@vger.kernel.org, Shuah Khan , Shuah Khan , kvmarm@lists.cs.columbia.edu, Salil Akerkar 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 Hello, Mark Brown writes: > @@ -186,9 +189,16 @@ struct sve_context { > * sve_context.vl must equal the thread's current vector length when > * doing a sigreturn. > * > + * On systems with support for SME the SVE register state may reflect either > + * streaming or non-streaming mode. In streaming mode the streaming mode > + * vector length will be used and the flag SVE_SIG_FLAG_SM will be set in > + * the flags field. It is permitted to enter or leave streaming mode in > + * a signal return, applications should take care to ensure that any difference > + * in vector length between the two modes is handled, including any resixing > + * and movement of context blocks. s/resixing/resizing/ -- Thiago _______________________________________________ kvmarm mailing list kvmarm@lists.cs.columbia.edu https://lists.cs.columbia.edu/mailman/listinfo/kvmarm