From nobody Fri Nov 14 19:43:59 2025 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; dkim=pass; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; dmarc=pass(p=none dis=none) header.from=linaro.org ARC-Seal: i=1; a=rsa-sha256; t=1761631125; cv=none; d=zohomail.com; s=zohoarc; b=hH86Z+JNaAH1RLT1/oFiQW4ExCMrT8Uj7i9dR8mQhbRkM2GODX/Iskls15W9rh80e26qhMj+utfZZ9IDT+SEKT8IKtbfFT/X/qa5bj3Rd22f2Q3T+7VCZYegp7kBOrg39ar+yC6fp2YBo0fRHgnzoZHm+onrlsSLtc6R0ekPvao= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zohomail.com; s=zohoarc; t=1761631125; h=Content-Type:Content-Transfer-Encoding:Cc:Cc:Date:Date:From:From:In-Reply-To:List-Subscribe:List-Post:List-Id:List-Archive:List-Help:List-Unsubscribe:MIME-Version:Message-ID:References:Sender:Subject:Subject:To:To:Message-Id:Reply-To; bh=IQes5LeOA8vkPfaUoODaZwI5RRRB72LYmxLKv5qcwg8=; b=ZsbiKcU4nJE671QFh6mM3w1fOx14kXIwBApO4HHDnf84LeS+F/DDvKMtKU9sBYWxC2quNkdtkHLcCMqKWXuR9OAGgV3oruOyhyPAL7GwSsCjh1sXzXYigNrkpGlkOA1Q07RBaIahnogm90KGdOQ4cnjRzXgDK+BQRpRHVq+vyOs= ARC-Authentication-Results: i=1; mx.zohomail.com; dkim=pass; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; dmarc=pass header.from= (p=none dis=none) Return-Path: Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) by mx.zohomail.com with SMTPS id 1761631125539552.5342798420139; Mon, 27 Oct 2025 22:58:45 -0700 (PDT) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1vDciz-0007kv-Dz; Tue, 28 Oct 2025 01:58:29 -0400 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 1vDciw-0007kB-C1 for qemu-devel@nongnu.org; Tue, 28 Oct 2025 01:58:26 -0400 Received: from mail-wm1-x331.google.com ([2a00:1450:4864:20::331]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1vDciu-0005Ag-K0 for qemu-devel@nongnu.org; Tue, 28 Oct 2025 01:58:26 -0400 Received: by mail-wm1-x331.google.com with SMTP id 5b1f17b1804b1-474975af41dso37754835e9.2 for ; Mon, 27 Oct 2025 22:58:22 -0700 (PDT) Received: from localhost.localdomain (88-187-86-199.subs.proxad.net. [88.187.86.199]) by smtp.gmail.com with ESMTPSA id 5b1f17b1804b1-4771906af34sm10491105e9.14.2025.10.27.22.58.19 (version=TLS1_3 cipher=TLS_CHACHA20_POLY1305_SHA256 bits=256/256); Mon, 27 Oct 2025 22:58:20 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; t=1761631101; x=1762235901; darn=nongnu.org; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=IQes5LeOA8vkPfaUoODaZwI5RRRB72LYmxLKv5qcwg8=; b=mRky6laQi+8EPLKrgCspLQf9bJcaCucSVTaHQXgn5s/2e1GPVjHE9hOTnBpWPXnQF3 5z5RkOj35sFdkTSVdmqteM1xHC1Oe67j4ykvEDFmOXXr244Ezx/y3vgUhu2G2QrV/0ZX c+/QWLqFvsDt+rURSzCbruRv1tzEKtBFrhr+a8kd+rDrCjGTTSilp7NCTzrild/hlG0B Z0Q43EmCeA+p1oy9XRxOsegflDrdKm6AQCkUY3F2TjGY/52D+bY8ilD60QcG3kB0SkSh JHm/zREmGQdbfJT1H8b2wmCRlVR7NA2mbf49BnIEEt/wo95Wilh9Pr9Y1S+huBPLht1S 5j0A== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1761631101; x=1762235901; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=IQes5LeOA8vkPfaUoODaZwI5RRRB72LYmxLKv5qcwg8=; b=URaOGtJ6xrSn7WMWvOvmTy8XpPpMTWZTpeRLSGh2MFL/D2WLi82rzNCB0jIgXxct16 R373MCE4PeU+JgFBvrmUaKYV3cvrzTUGETdfAlau1IiplRriyjKHb6jgWnVD+V8ICtVC SqKlO58PzfeXBKX2tZC10HKDFw3kLmb+Gz+LYg3+bGXsqgbXnGDDWAga1oAjFz00BXLi vhJFWEULkspKVb9nWqx66RQpqXoCDSPAHz3p8pldTlv05/Yix9lxfps409xa6rR7fLrQ 8cpTco19nIxrLdrkR9cjFoY0Tq2jgg7+XIpeKJ1Fxmcia/LE+Vaz+fJfRbovwCm/jnDm 3Smw== X-Gm-Message-State: AOJu0Yzf7oKwMzVvyni6NnDX5n3eL31gAAOLK2pcEp2jOxWQ7qyjVUqP Fc41x64K7oaxZR4IGYDsbLCUYndaV4nofnAMulXmzuWKj7V/HQ6sS5bdz/+UI3Qu8nNBaCSq6yv VewjdxMM= X-Gm-Gg: ASbGncvWLkt6ThEos08RznJr5OnYf5aWf3ym7rPP/ZZX93VRsjwiNQZCjMGnmNtFEL/ ezriPPJsOgqsCbckK7Xgk2y9qrHgpDDHzBqMcliPWypU+H56jS8bm9V20hi10YYjiiBoOBdNYcm o74H4Mcd5XVCmfppPqb4foYBrTOuaFe/WR5mR8SXe6Wdyncn+7P/RONRO8s+SPCc4SNVodAl+h+ aldOExlUfECPEjadtgtcDkYUxe7M/SUHasf8nWliXUsrMy8OwKozkwixAuK4fKMDWRHcPt9dmej memvU7TETQT1EvkHUbmScuDLZK0wnFXRUdJwSpCbc/kegdgB8V+39RctyOIGCozoE7aOrjomZtB WkvLvUf7Glb8wApdXYxPOtkH/1YvlQMrjnkcbQ8MJSGoGoIBYJaAdu0tcoCBpxhlDbBOXZDqDwd sFryBB97e7cMCLpfAv8ogs0tAHIzrr9Rq1OKmsyyfAP2eBEhIxi3476gE= X-Google-Smtp-Source: AGHT+IFp8VT48Ql+53i4mrWS48pgyMYG3Z/P3ai2L3tGtyhJlFPRkbyVaAlOMAuIUrBwr1iAYW9TXg== X-Received: by 2002:a05:600c:8209:b0:46e:326e:4501 with SMTP id 5b1f17b1804b1-47717dfe812mr15272855e9.10.1761631101359; Mon, 27 Oct 2025 22:58:21 -0700 (PDT) From: =?UTF-8?q?Philippe=20Mathieu-Daud=C3=A9?= To: qemu-devel@nongnu.org Cc: Mads Ynddal , Cameron Esfahani , qemu-arm@nongnu.org, Roman Bolshakov , Akihiko Odaki , Phil Dennis-Jordan , Mohamed Mediouni , Peter Collingbourne , Peter Maydell , Alexander Graf , Richard Henderson , =?UTF-8?q?Philippe=20Mathieu-Daud=C3=A9?= Subject: [PATCH v3 22/59] accel/hvf: Guard hv_vcpu_run() between cpu_exec_start/end() calls Date: Tue, 28 Oct 2025 06:41:58 +0100 Message-ID: <20251028054238.14949-23-philmd@linaro.org> X-Mailer: git-send-email 2.51.0 In-Reply-To: <20251028054238.14949-1-philmd@linaro.org> References: <20251028054238.14949-1-philmd@linaro.org> MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=2a00:1450:4864:20::331; envelope-from=philmd@linaro.org; helo=mail-wm1-x331.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+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @linaro.org) X-ZM-MESSAGEID: 1761631128128154100 Similarly to 1d78a3c3ab8 for KVM, wrap hv_vcpu_run() with cpu_exec_start/end(), so that the accelerator can perform pending operations while all vCPUs are quiescent. See also explanation in commit c265e976f46 ("cpus-common: lock-free fast path for cpu_exec_start/end"). Signed-off-by: Philippe Mathieu-Daud=C3=A9 Reviewed-by: Richard Henderson --- target/arm/hvf/hvf.c | 2 ++ target/i386/hvf/hvf.c | 4 ++++ 2 files changed, 6 insertions(+) diff --git a/target/arm/hvf/hvf.c b/target/arm/hvf/hvf.c index 79861dcacf9..c882f4c89cf 100644 --- a/target/arm/hvf/hvf.c +++ b/target/arm/hvf/hvf.c @@ -2026,7 +2026,9 @@ int hvf_arch_vcpu_exec(CPUState *cpu) } =20 bql_unlock(); + cpu_exec_start(cpu); r =3D hv_vcpu_run(cpu->accel->fd); + cpu_exec_end(cpu); bql_lock(); switch (r) { case HV_SUCCESS: diff --git a/target/i386/hvf/hvf.c b/target/i386/hvf/hvf.c index 28d98659ec2..16febbac48f 100644 --- a/target/i386/hvf/hvf.c +++ b/target/i386/hvf/hvf.c @@ -992,9 +992,13 @@ int hvf_arch_vcpu_exec(CPUState *cpu) return EXCP_HLT; } =20 + cpu_exec_start(cpu); + hv_return_t r =3D hv_vcpu_run_until(cpu->accel->fd, HV_DEADLINE_FO= REVER); assert_hvf_ok(r); =20 + cpu_exec_end(cpu); + ret =3D hvf_handle_vmexit(cpu); } while (ret =3D=3D 0); =20 --=20 2.51.0