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 lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 10820C54E76 for ; Tue, 17 Jan 2023 18:38:19 +0000 (UTC) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1pHqqQ-0006N7-Bv; Tue, 17 Jan 2023 13:38:02 -0500 Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1pHqqO-0006Mp-SR for qemu-devel@nongnu.org; Tue, 17 Jan 2023 13:38:00 -0500 Received: from mail-wm1-x32a.google.com ([2a00:1450:4864:20::32a]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1pHqqN-0008PX-AE for qemu-devel@nongnu.org; Tue, 17 Jan 2023 13:38:00 -0500 Received: by mail-wm1-x32a.google.com with SMTP id g10so22999470wmo.1 for ; Tue, 17 Jan 2023 10:37:58 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; h=content-transfer-encoding:mime-version:message-id:in-reply-to:date :subject:cc:to:from:user-agent:references:from:to:cc:subject:date :message-id:reply-to; bh=9H4y0Bt2sXI9mL8arvA/aO2CDynRZefdfnh2/L4eq6g=; b=ZOTU1dxbqoO0yX9XCCxoZ1DqCbKuXH9HPnbicWFmeXsfn6nEA1zpGPOWSCvvpf6PvC 3opzXF/M17hWMpdlUWR5CRSWyE8SypvB2s33eKt+sMCW4kudOqmnmq7f0LWCqr2yBJah qDrv1kkxHQP9Ch9Dj74gfraz5e3Z3y2M/6OnxRYwypU/4M8G46YvAx6c9ZYQD+07wKMl ACcYl9LMKAxhVHeINfIBFpZ+qQW4ibIymFrpec/O5Clz1ijelIENFqGkUbjr/SqBEq6s GOIGVmx8vgfM2dDAe5PVsVp76a/SaYvavkUey//RNIIfI5OqGHS+H+mxUQlgcXk18Xc/ 62VQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=content-transfer-encoding:mime-version:message-id:in-reply-to:date :subject:cc:to:from:user-agent:references:x-gm-message-state:from:to :cc:subject:date:message-id:reply-to; bh=9H4y0Bt2sXI9mL8arvA/aO2CDynRZefdfnh2/L4eq6g=; b=UbYhwpULoybFv1ktpHKaHim7OfKOJdHzBLaLk3i133/d2YMOqRarvHV79Ud8PkgIe9 ugW8QcSH2b+CFut8t1X5XloI/b+5BLfqmBfXMGLaXdWaqdKLbA1EWbr1lV0Wr6Zc6LKl Rgc0voLLgnhDhXCFslptT4fC333px6R+EatK6qrzUOWkUPXWGIxGskzOFAohDC5AMtq7 ggM+aODAG/ulYSoKYmd44zxW9K4E689FAQ4ycBWTt+PE5SskkMvXJo8Q0sET6ltwhFSp lZ6v5q9kcbNlga5Edd/b2Ep/9dDD0d4kun80aHNHao7ZU0xWo+cBbHJH/q1wmWj7CfAD znWw== X-Gm-Message-State: AFqh2kpbKZkteINCKqzx+UQSYdEZnE9Px9HmfwqnF95I3TdTapAvj/dy sn3Xc7ohfiY6wUZqCTsg6H9Z8w== X-Google-Smtp-Source: AMrXdXtyH7hhN9t9OvGRD+K/YTFRfwW3v10PcbGMvBoXiNkPUO3x7ea7xZ22TqFfYTypo848NQvKdw== X-Received: by 2002:a05:600c:3ba5:b0:3da:ff66:e3cc with SMTP id n37-20020a05600c3ba500b003daff66e3ccmr3944581wms.21.1673980677270; Tue, 17 Jan 2023 10:37:57 -0800 (PST) Received: from zen.linaroharston ([185.81.254.11]) by smtp.gmail.com with ESMTPSA id q6-20020a05600c46c600b003cfd4e6400csm40479799wmo.19.2023.01.17.10.37.56 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 17 Jan 2023 10:37:56 -0800 (PST) Received: from zen (localhost [127.0.0.1]) by zen.linaroharston (Postfix) with ESMTP id 4BAAD1FFB7; Tue, 17 Jan 2023 18:37:56 +0000 (GMT) References: <20230109014248.2894281-1-richard.henderson@linaro.org> <20230109014248.2894281-23-richard.henderson@linaro.org> User-agent: mu4e 1.9.15; emacs 29.0.60 From: Alex =?utf-8?Q?Benn=C3=A9e?= To: Richard Henderson Cc: qemu-devel@nongnu.org Subject: Re: [PATCH v2 22/22] tcg/riscv: Implement direct branch for goto_tb Date: Tue, 17 Jan 2023 18:37:51 +0000 In-reply-to: <20230109014248.2894281-23-richard.henderson@linaro.org> Message-ID: <874jsp0zy3.fsf@linaro.org> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable Received-SPF: pass client-ip=2a00:1450:4864:20::32a; envelope-from=alex.bennee@linaro.org; helo=mail-wm1-x32a.google.com X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Richard Henderson writes: > Now that tcg can handle direct and indirect goto_tb simultaneously, > we can optimistically leave space for a direct branch and fall back > to loading the pointer from the TB for an indirect branch. > > Signed-off-by: Richard Henderson Reviewed-by: Alex Benn=C3=A9e --=20 Alex Benn=C3=A9e Virtualisation Tech Lead @ Linaro