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[156.151.31.85]) by mx.google.com with ESMTPS id r62si8988739iod.101.2019.07.11.07.26.30 for (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Thu, 11 Jul 2019 07:26:30 -0700 (PDT) Received-SPF: pass (google.com: domain of alexandre.chartre@oracle.com designates 156.151.31.85 as permitted sender) client-ip=156.151.31.85; Authentication-Results: mx.google.com; dkim=pass header.i=@oracle.com header.s=corp-2018-07-02 header.b=UpGsaKxV; spf=pass (google.com: domain of alexandre.chartre@oracle.com designates 156.151.31.85 as permitted sender) smtp.mailfrom=alexandre.chartre@oracle.com; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=oracle.com Received: from pps.filterd (userp2120.oracle.com [127.0.0.1]) by userp2120.oracle.com (8.16.0.27/8.16.0.27) with SMTP id x6BEOE8u013326; Thu, 11 Jul 2019 14:26:21 GMT DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=oracle.com; h=from : to : cc : subject : date : message-id : in-reply-to : references; s=corp-2018-07-02; bh=x/IjzSr0NJXbBWkc/GbWFGd8aRvvo+k/bAxRCg2smaA=; b=UpGsaKxVuo2eIaT3MIyMj6uwvZYdjod6xr9sIWH6GLVIiGJo5xv5khjwyLVyDDuy1GvG yfeeGSjBWTuaMV/ezPA0NULlZQYuPGQftx9frpdHWZCWGt6EzWWMYPjn5VPHT47SjUpI A1Zvxp/4R+waiK8CFltSblp1Oe52CtoJA0LD+OBZSfdqHFgWhRLUnvbf0i9N2AFU9yvt 42HuhPrb/rYgNn3SpXtQLfgcHyAjGcS15pNxoiZQoNGdL0uAmA7B00OD3j6dk0aaUwQn KjZFUxYUuNzdESj/m6+MVakQNxN1UqdtuIgCsY0XLrDA5xHgNra+3zY3ilOMR4T3aYcQ vg== Received: from aserv0021.oracle.com (aserv0021.oracle.com [141.146.126.233]) by userp2120.oracle.com with ESMTP id 2tjm9r0bpk-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Thu, 11 Jul 2019 14:26:21 +0000 Received: from achartre-desktop.fr.oracle.com (dhcp-10-166-106-34.fr.oracle.com [10.166.106.34]) by aserv0021.oracle.com (8.14.4/8.14.4) with ESMTP id x6BEPcu2021444; Thu, 11 Jul 2019 14:26:12 GMT From: Alexandre Chartre To: pbonzini@redhat.com, rkrcmar@redhat.com, tglx@linutronix.de, mingo@redhat.com, bp@alien8.de, hpa@zytor.com, dave.hansen@linux.intel.com, luto@kernel.org, peterz@infradead.org, kvm@vger.kernel.org, x86@kernel.org, linux-mm@kvack.org, linux-kernel@vger.kernel.org Cc: konrad.wilk@oracle.com, jan.setjeeilers@oracle.com, liran.alon@oracle.com, jwadams@google.com, graf@amazon.de, rppt@linux.vnet.ibm.com, alexandre.chartre@oracle.com Subject: [RFC v2 09/26] mm/asi: Helper functions to map module into ASI Date: Thu, 11 Jul 2019 16:25:21 +0200 Message-Id: <1562855138-19507-10-git-send-email-alexandre.chartre@oracle.com> X-Mailer: git-send-email 1.7.1 In-Reply-To: <1562855138-19507-1-git-send-email-alexandre.chartre@oracle.com> References: <1562855138-19507-1-git-send-email-alexandre.chartre@oracle.com> X-Proofpoint-Virus-Version: vendor=nai engine=6000 definitions=9314 signatures=668688 X-Proofpoint-Spam-Details: rule=notspam policy=default score=0 priorityscore=1501 malwarescore=0 suspectscore=0 phishscore=0 bulkscore=0 spamscore=0 clxscore=1015 lowpriorityscore=0 mlxscore=0 impostorscore=0 mlxlogscore=896 adultscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.0.1-1810050000 definitions=main-1907110162 X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: Add helper functions to easily map a module into an ASI. Signed-off-by: Alexandre Chartre --- arch/x86/include/asm/asi.h | 21 +++++++++++++++++++++ 1 files changed, 21 insertions(+), 0 deletions(-) diff --git a/arch/x86/include/asm/asi.h b/arch/x86/include/asm/asi.h index 19656aa..b5dbc49 100644 --- a/arch/x86/include/asm/asi.h +++ b/arch/x86/include/asm/asi.h @@ -6,6 +6,7 @@ #ifndef __ASSEMBLY__ +#include #include #include #include @@ -81,6 +82,26 @@ extern int asi_map_range(struct asi *asi, void *ptr, size_t size, extern int asi_map(struct asi *asi, void *ptr, unsigned long size); /* + * Copy the memory mapping for the current module. This is defined as a + * macro to ensure it is expanded in the module making the call so that + * THIS_MODULE has the correct value. + */ +#define ASI_MAP_THIS_MODULE(asi) \ + (asi_map(asi, THIS_MODULE->core_layout.base, \ + THIS_MODULE->core_layout.size)) + +static inline int asi_map_module(struct asi *asi, char *module_name) +{ + struct module *module; + + module = find_module(module_name); + if (!module) + return -ESRCH; + + return asi_map(asi, module->core_layout.base, module->core_layout.size); +} + +/* * Function to exit the current isolation. This is used to abort isolation * when a task using isolation is scheduled out. */ -- 1.7.1