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[213.67.3.247]) by smtp.gmail.com with ESMTPSA id 2adb3069b0e04-52e7ab2776bsm1553637e87.175.2024.07.01.15.44.24 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 01 Jul 2024 15:44:24 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20230601; t=1719873866; x=1720478666; 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=z7pJOgWYTohoN9bNh+FuLDvV+CzujybNoWiwTHb5R5U=; b=TSYZSTAOhQgkqZ/GGxqmvBa+A4nkCZ0XDXOcL/F2AxH/3QNeGXVoird6W7oDSXrYRu t8sQGvM8C9x0y19DskurF+CWL67P95Bwfw0L5S9HbQuNeqUFvt0zLWAXdqUvC+es+aw+ xBdsT2wbgGQTQvnoTl9TZzsmqV/pZvUMXAfWfex0rkiQW/JKFILk5B6lmf85vjQ5RyjO TqjjMu9OdFAakdSeXWDl2CjPe7VTbebXryX/7Cmm009EKCJ3u9GxV3PAxOx+Xa2w3Ooq Bg4kAH1yNPHan6pv/6PaeHWaVY0EgUvEu22L5osDd4O8aGs2GLV1egx2J3M9WDxUrI8L NEoA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1719873866; x=1720478666; 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=z7pJOgWYTohoN9bNh+FuLDvV+CzujybNoWiwTHb5R5U=; b=GH8whKFO8bkottmyimBvJjymV2DCgttIWapgR4rMXvze2hVZy+IZBpUkZ/vGs7VYHg /3aVha+JzOTlMLaTabG46t3xIUnIlytkl8y1dlF0d3G3DPdITma79lX+rQ2V3vR/7lYS eXfYsdESvBC9k1PPk8CmkYnQJcHJ3YntzZW8Ijv0rSujPJACL2WZ2EJNAwHiliA9qFv0 +L9QZonmR5C7HdjnF/YHoV6NK7IXAcNEESrDUeglS/OQBCaHwCNLnG2iAnSBxl9VvoRw eNOjyCOKrmLWrFY9UmmE4vLC+Fv8kcOd7SUHXYywqzSH4x3FunWORsDb9akJv/tbfH88 WzUQ== X-Gm-Message-State: AOJu0YxAiLcHZsE6xsJdPXpnzsSMR5aeqRYvWzQQflnmtkRpAodARYzz vhLte7gr/Z+VyQFJX85b2iVp0CxS9SaU1oaXsqtpC5R2kdDLrR6tHJTXkfQ4 X-Google-Smtp-Source: AGHT+IEVWqn6yL477AvOLH/6tDs+0UcgfhXgHVrF+nz3cT7y9bdDM7hCDuZsRYNQLIieDX2+ijBF8Q== X-Received: by 2002:a05:6512:3b29:b0:52c:d9f8:b033 with SMTP id 2adb3069b0e04-52e8264bcb5mr4335217e87.3.1719873865019; Mon, 01 Jul 2024 15:44:25 -0700 (PDT) From: "Edgar E. Iglesias" To: qemu-devel@nongnu.org Cc: sstabellini@kernel.org, anthony@xenproject.org, paul@xen.org, edgar.iglesias@amd.com, xen-devel@lists.xenproject.org, Paolo Bonzini , Peter Xu , David Hildenbrand , =?UTF-8?q?Philippe=20Mathieu-Daud=C3=A9?= Subject: [PATCH v1 1/2] physmem: Bail out qemu_ram_block_from_host() for invalid ram addrs Date: Tue, 2 Jul 2024 00:44:20 +0200 Message-ID: <20240701224421.1432654-2-edgar.iglesias@gmail.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20240701224421.1432654-1-edgar.iglesias@gmail.com> References: <20240701224421.1432654-1-edgar.iglesias@gmail.com> MIME-Version: 1.0 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+importer2=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=2a00:1450:4864:20::12e; envelope-from=edgar.iglesias@gmail.com; helo=mail-lf1-x12e.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, FREEMAIL_FROM=0.001, 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+importer2=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer2=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @gmail.com) X-ZM-MESSAGEID: 1719873944433100005 Content-Type: text/plain; charset="utf-8" From: "Edgar E. Iglesias" Bail out in qemu_ram_block_from_host() when xen_ram_addr_from_mapcache() does not find an existing mapping. Signed-off-by: Edgar E. Iglesias Reviewed-by: Alex Benn=C3=A9e Reviewed-by: Stefano Stabellini --- system/physmem.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/system/physmem.c b/system/physmem.c index 33d09f7571..59d1576c2b 100644 --- a/system/physmem.c +++ b/system/physmem.c @@ -2277,6 +2277,10 @@ RAMBlock *qemu_ram_block_from_host(void *ptr, bool r= ound_offset, ram_addr_t ram_addr; RCU_READ_LOCK_GUARD(); ram_addr =3D xen_ram_addr_from_mapcache(ptr); + if (ram_addr =3D=3D RAM_ADDR_INVALID) { + return NULL; + } + block =3D qemu_get_ram_block(ram_addr); if (block) { *offset =3D ram_addr - block->offset; --=20 2.43.0