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[209.51.188.17]) by mx.google.com with ESMTPS id d10-20020ac85d8a000000b0041215aa1b15si7623705qtx.793.2023.09.05.05.22.35 for (version=TLS1_2 cipher=ECDHE-ECDSA-CHACHA20-POLY1305 bits=256/256); Tue, 05 Sep 2023 05:22:35 -0700 (PDT) Received-SPF: pass (google.com: domain of qemu-devel-bounces+patch=linaro.org@nongnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; Authentication-Results: mx.google.com; dkim=pass header.i=@linaro.org header.s=google header.b=I34CpIIu; spf=pass (google.com: domain of qemu-devel-bounces+patch=linaro.org@nongnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom="qemu-devel-bounces+patch=linaro.org@nongnu.org"; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=linaro.org Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1qdV4b-0003f4-6U; Tue, 05 Sep 2023 08:22:25 -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 1qdV4G-0003UY-T6 for qemu-devel@nongnu.org; Tue, 05 Sep 2023 08:22:08 -0400 Received: from mail-wr1-x42e.google.com ([2a00:1450:4864:20::42e]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1qdV4E-0000pO-Ln for qemu-devel@nongnu.org; Tue, 05 Sep 2023 08:22:04 -0400 Received: by mail-wr1-x42e.google.com with SMTP id ffacd0b85a97d-31c3726cc45so2171391f8f.0 for ; Tue, 05 Sep 2023 05:22:01 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; t=1693916520; x=1694521320; 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=sB86fzFOmVDgMvea5i3OluWg93+WlVCOeLM0GI/SSvo=; b=I34CpIIuMOae5ko9w2U8XPSel/qy3c/rGoz1G10z8i2trWkHnTgeESlxQBF+y3DH1h tvzYkTOB2/gIaw3dcQqsffM3/dUqM7m4PkaYrnEd1V+ZkwkQscE1VvIidXquFqJjDUxs F59OUUsM/9PCp9esiBEnw/z6lPRT7SuJW8d/zoY2Bgl+rm/II0OKXDXbYZXqMFQgz13Z qBrdT2qgQiNoAUvQcVTm7x4ativZjla2tE/2ElRzvEKLZKzUmkBm7VeBw6v79Ffw5HP/ 70fsF7LN0ADeg7+RlbXKJLTrTiiLKbJ3GczuPtdqEFewEeiQIJSsmlU9dQdF6U0Vjin+ RoHQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20221208; t=1693916520; x=1694521320; 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=sB86fzFOmVDgMvea5i3OluWg93+WlVCOeLM0GI/SSvo=; b=BzT9h7MFrW6mowLY/yKw/x0Dv6ZXjQNZl/PDiXZ8/L7PbkF2bcp3LmjPm0ATqChSZI lH63VDRLwgYxEjrvunXDV+9Rrbb6vAlwbUk7cmlIvcYlfLwi429Bx2/ymN22dGIeeFSc wUxwEv1g8WBtzn5JV/MQCursWDuEvhYGHptaScfTPDdyOVyGYJk+26jSkGbGc769Eefs 7COkFpwO8Q2/v9ZipBmu6wza25Orc3HuICN3xjOYudElAaMy4lW6cYJoOJlLDRQg5F/A n++bWCyk5JJOjeZRf4udpKjDcBn4Xv7OBXm3RzuufSBuTP8R5d2z2f36gh1It/aZLgzb j3KA== X-Gm-Message-State: AOJu0Yz8O2/SQ4BaMBMjwJ+qdylkMJvfe6b20TcxIpXQnEslh1a23wrF 4YjcTIeu9hb3V76B1qCWAvCncJ9XHgq3ZjIM52A= X-Received: by 2002:a5d:5510:0:b0:319:6fff:f2c1 with SMTP id b16-20020a5d5510000000b003196ffff2c1mr8841138wrv.38.1693916519881; Tue, 05 Sep 2023 05:21:59 -0700 (PDT) Received: from localhost.localdomain ([37.69.27.38]) by smtp.gmail.com with ESMTPSA id n9-20020a05600c294900b003feff926fc5sm16775933wmd.17.2023.09.05.05.21.58 (version=TLS1_3 cipher=TLS_CHACHA20_POLY1305_SHA256 bits=256/256); Tue, 05 Sep 2023 05:21:59 -0700 (PDT) From: =?utf-8?q?Philippe_Mathieu-Daud=C3=A9?= To: qemu-devel@nongnu.org Cc: Paul Durrant , Paolo Bonzini , Stefano Stabellini , xen-devel@lists.xenproject.org, Anthony Perard , =?utf-8?q?Philippe_Mathieu-Daud?= =?utf-8?q?=C3=A9?= , Daniel Henrique Barboza , Peter Xu , David Hildenbrand Subject: [PATCH 3/3] sysemu/xen: Allow elision of xen_hvm_modified_memory() Date: Tue, 5 Sep 2023 14:21:42 +0200 Message-ID: <20230905122142.5939-4-philmd@linaro.org> X-Mailer: git-send-email 2.41.0 In-Reply-To: <20230905122142.5939-1-philmd@linaro.org> References: <20230905122142.5939-1-philmd@linaro.org> MIME-Version: 1.0 Received-SPF: pass client-ip=2a00:1450:4864:20::42e; envelope-from=philmd@linaro.org; helo=mail-wr1-x42e.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+patch=linaro.org@nongnu.org Sender: qemu-devel-bounces+patch=linaro.org@nongnu.org Call xen_enabled() before xen_hvm_modified_memory() to let the compiler elide its call. Have xen_enabled() return a boolean to match its declaration in the CONFIG_XEN_IS_POSSIBLE case. Suggested-by: Daniel Henrique Barboza Signed-off-by: Philippe Mathieu-Daudé Reviewed-by: David Hildenbrand --- include/exec/ram_addr.h | 8 ++++++-- include/sysemu/xen.h | 15 ++------------- 2 files changed, 8 insertions(+), 15 deletions(-) diff --git a/include/exec/ram_addr.h b/include/exec/ram_addr.h index 9f2e3893f5..66e849ac4e 100644 --- a/include/exec/ram_addr.h +++ b/include/exec/ram_addr.h @@ -330,7 +330,9 @@ static inline void cpu_physical_memory_set_dirty_range(ram_addr_t start, } } - xen_hvm_modified_memory(start, length); + if (xen_enabled()) { + xen_hvm_modified_memory(start, length); + } } #if !defined(_WIN32) @@ -406,7 +408,9 @@ uint64_t cpu_physical_memory_set_dirty_lebitmap(unsigned long *bitmap, } } - xen_hvm_modified_memory(start, pages << TARGET_PAGE_BITS); + if (xen_enabled()) { + xen_hvm_modified_memory(start, pages << TARGET_PAGE_BITS); + } } else { uint8_t clients = tcg_enabled() ? DIRTY_CLIENTS_ALL : DIRTY_CLIENTS_NOCODE; diff --git a/include/sysemu/xen.h b/include/sysemu/xen.h index 1f797a9abe..d84a5f3551 100644 --- a/include/sysemu/xen.h +++ b/include/sysemu/xen.h @@ -21,24 +21,13 @@ #endif #ifdef CONFIG_XEN_IS_POSSIBLE - extern bool xen_allowed; - #define xen_enabled() (xen_allowed) - -void xen_hvm_modified_memory(ram_addr_t start, ram_addr_t length); - #else /* !CONFIG_XEN_IS_POSSIBLE */ - -#define xen_enabled() 0 - -static inline void xen_hvm_modified_memory(ram_addr_t start, ram_addr_t length) -{ - /* nothing */ -} - +#define xen_enabled() false #endif /* CONFIG_XEN_IS_POSSIBLE */ +void xen_hvm_modified_memory(ram_addr_t start, ram_addr_t length); void xen_ram_alloc(ram_addr_t ram_addr, ram_addr_t size, struct MemoryRegion *mr, Error **errp);