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[213.67.3.247]) by smtp.gmail.com with ESMTPSA id 38308e7fff4ca-2eeb3489029sm10741871fa.104.2024.07.12.04.02.34 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 12 Jul 2024 04:02:34 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20230601; t=1720782156; x=1721386956; 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=Dc1eTWi5iZyva3MfQYId5KFBzpR8Jnw4CwD+XxknsHI=; b=igiPwKgHm56hZOm/Flx3nfEonZhq9fA5MXEE3xQdG7OGLhbFVAQF+sejwGFionmptF MD4KnYyyitr0XF0xb+JKs51KOT7q8kywNJBe2Q1HCP1yGn1pK1j9MCBRtdfDwGZtYBvK o6u3GYZjP0QOJ4hCRZ+6zqgWi0vfMWTU/u6gFCPkiDP01Z6jhKnp8Ot61B1k4Iwl3Lgd kLCjV1qahIbAw/TZKFhMSpzVSlyTME/DRT3DeKuYdGdwkMtoZ0aGUg6pcxCPgrqydUUA 1I//g3I/xx80vbrtjunsWyF034cwii4xR9LlmjRHiGAxoQKymTzLFrTpQXbwcvIczw1L 2lkg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1720782156; x=1721386956; 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=Dc1eTWi5iZyva3MfQYId5KFBzpR8Jnw4CwD+XxknsHI=; b=tGXUqE2Ncz91z4Iz7wB4yf6OC9yZpv1ZL7qhP+6FGlSKdt3uWzMC1KTvSbuwt6VfHG tUASpa5UI4nwtk7oii5Od5Gq88yT1YTKAR73hL8RklniKAWiGZyix2flqPk81+8X0J7S wvIGLNfkgaoLnreA/aY0Hm3WcQsY3tNyfuuD92SPDzUPyRMIvgWm9o81dBmPNg5fQAor wR/ixvFE8OplEQ1SfFXO3IqcVkqZHb4nRqeXndmtun+45S/+IkRJvAW8a9VXSiAjCakp v+FdB0wLdt1fD0K+9OIA4ZXJW5IVSz1YqCWg+St5I7tfHkiqg1wJ4qXGLe7PfUpZTfzy l6kA== X-Gm-Message-State: AOJu0YylMXb3d1L9ilCnCW+Sou1U7JbP2X1FkW/9Ok3hxsv4iQ0F4MB5 /+cFwCHiqtWxHNfT1reCM3K/dChsl0aKzyb3QJhLRyhwIEk7nrthEa3AANN8 X-Google-Smtp-Source: AGHT+IHkWR3puHuo2XOZ/nDlGjWAHbnO9jGh1wexmZx11eY1lI0DYagRvxEN2CVXAlXL/la0QDxqUA== X-Received: by 2002:a2e:6a05:0:b0:2ec:2d75:509c with SMTP id 38308e7fff4ca-2eeb31977c3mr71565311fa.46.1720782155218; Fri, 12 Jul 2024 04:02:35 -0700 (PDT) From: "Edgar E. Iglesias" To: qemu-devel@nongnu.org Cc: sstabellini@kernel.org, anthony@xenproject.org, paul@xen.org, alex.bennee@linaro.org, peter.maydell@linaro.org, richard.henderson@linaro.org, edgar.iglesias@amd.com, Stefano Stabellini Subject: [PULL v1 1/3] MAINTAINERS: add Edgar as Xen maintainer Date: Fri, 12 Jul 2024 13:02:28 +0200 Message-ID: <20240712110230.4098056-2-edgar.iglesias@gmail.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20240712110230.4098056-1-edgar.iglesias@gmail.com> References: <20240712110230.4098056-1-edgar.iglesias@gmail.com> 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::235; envelope-from=edgar.iglesias@gmail.com; helo=mail-lj1-x235.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+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @gmail.com) X-ZM-MESSAGEID: 1720782201316116600 From: Stefano Stabellini Add Edgar as Xen subsystem maintainer in QEMU. Edgar has been a QEMU maintainer for years, and has already made key changes to one of the most difficult areas of the Xen subsystem (the mapcache). Edgar volunteered helping us maintain the Xen subsystem in QEMU and we are very happy to welcome him to the team. His knowledge and expertise with QEMU internals will be of great help. Signed-off-by: Stefano Stabellini Reviewed-by: Paul Durrant Acked-by: Anthony PERARD Reviewed-by: Alex Benn=C3=A9e Signed-off-by: Edgar E. Iglesias --- MAINTAINERS | 1 + 1 file changed, 1 insertion(+) diff --git a/MAINTAINERS b/MAINTAINERS index 6725913c8b..63e11095a2 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -536,6 +536,7 @@ X86 Xen CPUs M: Stefano Stabellini M: Anthony PERARD M: Paul Durrant +M: Edgar E. 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[213.67.3.247]) by smtp.gmail.com with ESMTPSA id 2adb3069b0e04-52eb9079cbasm1233898e87.309.2024.07.12.04.02.35 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 12 Jul 2024 04:02:35 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20230601; t=1720782158; x=1721386958; 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=fKWnt4ssz7MnpyKuRbBIUzzN45FF59afh9GBgWcO174=; b=aldrw8BfOlQXmbgluuBysNfZOXFTG39l5DJ0IK+pm2drXUdDH1PAEcUuJLTSnZkDnr +nJZH2PXocX2kBWHnE3S0wqEzXhI6OXOoNp/YJdSSVil3gomuykrj3vSXAioL1wCgbuF y7+DWJES1ajUM8ylE2E8rvb5AE/Z0mY/9JWwKcSxwq/RR6DQXRWLJtkNHnsK8OeMnJXf zAvARoFMdsam23JCGds/PkBI2zm+TXywRIss0/LS+IeMKnZdx3stDcSmGVZ5JkhtD3na W9zxqvBfg6NpkH8tmksyKi6ygDQaDZrlD5jPhzyjREtfNSquIK2VxBy85K0AnIreqkgu XPOA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1720782158; x=1721386958; 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=fKWnt4ssz7MnpyKuRbBIUzzN45FF59afh9GBgWcO174=; b=dIMNpw7jrf5TpeUYiJQQ0HaDptq7TNga+hh0/+Cm7hb/Tb26o/L01l9cfJsTJswhYt lXjjuVrTwCELMIJqymoSM8nc82lUIctd7rD3T8wYPs4ClASn1caSQVfYsFKvbQeyvQ0x X/3FQWps+hbl0E+pnV8rBXGpP4rV5LsvRphw2PXSv8S4jBniS7NePvBHZAQ2UM1gimnD 4Rv8Z15mD+3fzk4wSchxBcHn5jIqqINM93ScfLlRq9H2/13odm325gkn9eRJfEBcTntR oE7H737yTlMKua1natq/8VG52+p+PdaVvLdp5MfWUgNRNKBA9YQlycV0rdwqnYb6okvD K/aw== X-Gm-Message-State: AOJu0Yy0a8rUIPL9wKP+cNlyGJw6iC2kwTBNbW4KmtUmazx5wUjBOVzl +nZQkeCgwAu1fK0wtslYFJG+2ElQy+Az86rWJW8SPPQk8YeWSVg8SCCve8v+ X-Google-Smtp-Source: AGHT+IGOZ+IbhxesDx8p6m1dAos6T8JaI42mOJvjxpfDN/gOvfWbf+1UhmiRI32EsKvzgaPEKTNk0A== X-Received: by 2002:a05:6512:2107:b0:52e:9d6c:4462 with SMTP id 2adb3069b0e04-52eb99978d9mr5526109e87.23.1720782157305; Fri, 12 Jul 2024 04:02:37 -0700 (PDT) From: "Edgar E. Iglesias" To: qemu-devel@nongnu.org Cc: sstabellini@kernel.org, anthony@xenproject.org, paul@xen.org, alex.bennee@linaro.org, peter.maydell@linaro.org, richard.henderson@linaro.org, edgar.iglesias@amd.com, Paolo Bonzini , Peter Xu , David Hildenbrand , =?UTF-8?q?Philippe=20Mathieu-Daud=C3=A9?= Subject: [PULL v1 2/3] physmem: Bail out qemu_ram_block_from_host() for invalid ram addrs Date: Fri, 12 Jul 2024 13:02:29 +0200 Message-ID: <20240712110230.4098056-3-edgar.iglesias@gmail.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20240712110230.4098056-1-edgar.iglesias@gmail.com> References: <20240712110230.4098056-1-edgar.iglesias@gmail.com> 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::133; envelope-from=edgar.iglesias@gmail.com; helo=mail-lf1-x133.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+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @gmail.com) X-ZM-MESSAGEID: 1720782211360116600 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 14aa025d41..2154432cb6 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 From nobody Sun Nov 24 17:47:42 2024 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=gmail.com ARC-Seal: i=1; a=rsa-sha256; t=1720782194; cv=none; d=zohomail.com; s=zohoarc; b=bcm19br/8EeV0sW3Afjl+96e1/MJmSQ7j69yxOhvU2yQCNcq8qoPMYQy4aBBRIXG93NnjDnLHPq5/61CrD/yNZcqojVt+1omj1h1ouQ9x2b5Olr0gtMxG5Kyc6w4kbrUIGeGhDVkRko4qqjuDGAOSneNty3MtD4nibjzHtChRgQ= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zohomail.com; s=zohoarc; t=1720782194; h=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=87DPAAbyBmLAKm4ynt726DGnnWSE+Fbpy4sTffFQKUw=; b=YUhJRuXjx/j0Mpp7uy9ri0IXtH7XiZ+3RqWZWZKz9mvlHO2c/ESJai0dukuuM4fQYK0hPZUoUFH/PAQxUztuaGCeM9vWOxcQ+YPo66NyV+b0OYF/q/Aggy2RAktwn/lXPpqWDrwkqPgoybrx1E0Z/+eMFd43MbK2f2OvqMfzKu4= 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 1720782194154415.2723695015085; Fri, 12 Jul 2024 04:03:14 -0700 (PDT) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1sSE36-0000NK-FB; Fri, 12 Jul 2024 07:02:48 -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 1sSE31-00007v-Vm for qemu-devel@nongnu.org; Fri, 12 Jul 2024 07:02:44 -0400 Received: from mail-lf1-x12f.google.com ([2a00:1450:4864:20::12f]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1sSE2z-0003b2-AB for qemu-devel@nongnu.org; Fri, 12 Jul 2024 07:02:43 -0400 Received: by mail-lf1-x12f.google.com with SMTP id 2adb3069b0e04-52e99060b41so1982023e87.2 for ; Fri, 12 Jul 2024 04:02:40 -0700 (PDT) Received: from gmail.com (213-67-3-247-no600.tbcn.telia.com. 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Iglesias" To: qemu-devel@nongnu.org Cc: sstabellini@kernel.org, anthony@xenproject.org, paul@xen.org, alex.bennee@linaro.org, peter.maydell@linaro.org, richard.henderson@linaro.org, edgar.iglesias@amd.com, Anthony PERARD , "Edgar E. Iglesias" , xen-devel@lists.xenproject.org Subject: [PULL v1 3/3] xen: mapcache: Fix unmapping of first entries in buckets Date: Fri, 12 Jul 2024 13:02:30 +0200 Message-ID: <20240712110230.4098056-4-edgar.iglesias@gmail.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20240712110230.4098056-1-edgar.iglesias@gmail.com> References: <20240712110230.4098056-1-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+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=2a00:1450:4864:20::12f; envelope-from=edgar.iglesias@gmail.com; helo=mail-lf1-x12f.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+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @gmail.com) X-ZM-MESSAGEID: 1720782195277116600 Content-Type: text/plain; charset="utf-8" From: "Edgar E. Iglesias" This fixes the clobbering of the entry->next pointer when unmapping the first entry in a bucket of a mapcache. Fixes: 123acd816d ("xen: mapcache: Unmap first entries in buckets") Reported-by: Anthony PERARD Signed-off-by: Edgar E. Iglesias Reviewed-by: Anthony PERARD Reviewed-by: Stefano Stabellini --- hw/xen/xen-mapcache.c | 12 +++++++++++- 1 file changed, 11 insertions(+), 1 deletion(-) diff --git a/hw/xen/xen-mapcache.c b/hw/xen/xen-mapcache.c index 5f23b0adbe..18ba7b1d8f 100644 --- a/hw/xen/xen-mapcache.c +++ b/hw/xen/xen-mapcache.c @@ -597,7 +597,17 @@ static void xen_invalidate_map_cache_entry_unlocked(Ma= pCache *mc, pentry->next =3D entry->next; g_free(entry); } else { - memset(entry, 0, sizeof *entry); + /* + * Invalidate mapping but keep entry->next pointing to the rest + * of the list. + * + * Note that lock is already zero here, otherwise we don't unmap. + */ + entry->paddr_index =3D 0; + entry->vaddr_base =3D NULL; + entry->valid_mapping =3D NULL; + entry->flags =3D 0; + entry->size =3D 0; } } =20 --=20 2.43.0