From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from SJ2PR03CU001.outbound.protection.outlook.com (mail-westusazon11012011.outbound.protection.outlook.com [52.101.43.11]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 439A64EA397; Wed, 16 Sep 2026 12:00:21 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=fail smtp.client-ip=52.101.43.11 ARC-Seal:i=2; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1789560026; cv=fail; b=jqBO8NtBFL4K/VLJubI0PBAui7FphPe8+u057Lokb/KMBmnsCyn6bcqFwllfsuLLqCx9phx/q05ti47yY33yBrFMdZViUqUB+rHUntsVGPYJ6tFL1Xw2dBihuFHScke1OYyCQ6ZiMvoEzxdQGf+BFjRovNRd1CMyv3FG3oHSTqY= ARC-Message-Signature:i=2; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1789560026; c=relaxed/simple; bh=sttoicWwFhSqRBO1Rked7Fn122Ur/QMolwOebCg8C3w=; h=From:To:CC:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=AE+ZyHFuIA4eDXnTVTZHG6WoTVNEyeK/8Dr+bOG6wwejKce1Nov9CMEe8qNMXbT/oaN1BnQRrsA9MZh0E4gh/fFDQYqczu0eL8qP92PMWSIzC4ae22jIJ3hnRAUd0sC7ZjtyT8D2P+vbTDSCkOwMXMSinLuS7K+8r0VvMjDpd20= ARC-Authentication-Results:i=2; smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=amd.com; spf=fail smtp.mailfrom=amd.com; dkim=pass (1024-bit key) header.d=amd.com header.i=@amd.com header.b=gl3xaf2Y; arc=fail smtp.client-ip=52.101.43.11 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=amd.com Authentication-Results: smtp.subspace.kernel.org; spf=fail smtp.mailfrom=amd.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=amd.com header.i=@amd.com header.b="gl3xaf2Y" ARC-Seal: i=1; a=rsa-sha256; s=arcselector10001; d=microsoft.com; cv=none; b=QOT7sVRXy9De2202CBbsIjMNa3wpE64zrj65FxGGKS7PGb1MplltqpoLeCUpGx7ERZpY3Wx3NAV/QLDD5ajZ8TWBhHAmA7svGZ0jRP+vm0EfeMRqzOra+gqEXc3wU2EUl3w5PL74Psv9aAjdKrMNFUdLmRVJkQK2/JK/tDQMJIp5RWvNbrsOmDMxwqf1AYrbxWIFO9Q6nLPhIlAHBFeZiskQzoJuvogtBFK//uDXAZC/DiazhNPFh9XmflxC3nO/YGV/6XeV9IWs6D0zAN0r07oXvJZZwudZ9ulmklLYQEAsk+qdJ/Qo0ulexhdhaCd/lK0XwXDFaXjI9mK24RPtWQ== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=microsoft.com; s=arcselector10001; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-AntiSpam-MessageData-ChunkCount:X-MS-Exchange-AntiSpam-MessageData-0:X-MS-Exchange-AntiSpam-MessageData-1; bh=jaFnTLlUeuS15Vco6JUFNTtjEg2/GLK2yLIZqCLTaAk=; b=Q5qrJsNAJXmzz0ze4iE6i1fEBUGJQFh0UxYftcksk8ufaz1yIDLcrj4GXAK8nACOLg6tFJdf36XWt0fiuVrvSDAcZVafTi+ehnmYjj/Bcc6GqwKJB0oncFHWsDbq+FKYYIVLek3mX2tJJhtqKAUChv3FCxISUBsAUFX4KWQw4+O+YaaDU2dxRiPqDCEHgUKL89cqNcuwbWD3oLQ5qPOjVAlgf7lgsqbw52wuZeaNyOWuVLUV5BeUYZvtR4ZH06sTqUsJchF4+DCIuIq/zDzCxVKC2Py6c7IvuS6xtZM5PncphGiKcCkKflcuw2KKxDCCQZ/KrxVKCadiD8iTS2wqng== ARC-Authentication-Results: i=1; mx.microsoft.com 1; spf=pass (sender ip is 165.204.84.17) smtp.rcpttodomain=kernel.org smtp.mailfrom=amd.com; dmarc=pass (p=quarantine sp=quarantine pct=100) action=none header.from=amd.com; dkim=none (message not signed); arc=none (0) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=amd.com; s=selector1; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck; bh=jaFnTLlUeuS15Vco6JUFNTtjEg2/GLK2yLIZqCLTaAk=; b=gl3xaf2YW+xaUIdq/Ze4Vsnj1kQ2CrbCHsosjClYBGfqZKutdv3pYi+i/jzEWmd68FNLaEXIyXR//z2vbzRuO6R+38BRzH0IfFjoSr/u2P6BUTDTi5bwX8GkZ01py42Csy+noYDtShAmBDoL57gbb5TnjyLoMF0lpOHKJkgiW4U= Received: from BY1P220CA0011.NAMP220.PROD.OUTLOOK.COM (2603:10b6:a03:59d::11) by MW6PR12MB8663.namprd12.prod.outlook.com (2603:10b6:303:240::9) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.21.428.9; Wed, 16 Sep 2026 12:00:06 +0000 Received: from SJ5PEPF00000207.namprd05.prod.outlook.com (2603:10b6:a03:59d:cafe::d) by BY1P220CA0011.outlook.office365.com (2603:10b6:a03:59d::11) with Microsoft SMTP Server (version=TLS1_3, cipher=TLS_AES_256_GCM_SHA384) id 15.21.428.11 via Frontend Transport; Wed, 16 Sep 2026 12:00:04 +0000 X-MS-Exchange-Authentication-Results: spf=pass (sender IP is 165.204.84.17) smtp.mailfrom=amd.com; dkim=none (message not signed) header.d=none;dmarc=pass action=none header.from=amd.com; Received-SPF: Pass (protection.outlook.com: domain of amd.com designates 165.204.84.17 as permitted sender) receiver=protection.outlook.com; client-ip=165.204.84.17; helo=satlexmb07.amd.com; pr=C Received: from satlexmb07.amd.com (165.204.84.17) by SJ5PEPF00000207.mail.protection.outlook.com (10.167.244.40) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.21.428.7 via Frontend Transport; Wed, 16 Sep 2026 12:00:04 +0000 Received: from aiemdee.amd.com (10.180.168.240) by satlexmb07.amd.com (10.181.42.216) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.2562.49; Wed, 16 Sep 2026 06:59:40 -0500 From: Alexey Kardashevskiy To: CC: , , , , Thomas Gleixner , Ingo Molnar , Borislav Petkov , Dave Hansen , "H. Peter Anvin" , Sean Christopherson , Paolo Bonzini , Andy Lutomirski , Peter Zijlstra , Ashish Kalra , Tom Lendacky , Herbert Xu , "David S. Miller" , Bjorn Helgaas , Juergen Gross , Stefano Stabellini , Oleksandr Tyshchenko , Marek Szyprowski , Robin Murphy , "Andrew Morton" , David Hildenbrand , Lorenzo Stoakes , "Liam R. Howlett" , Vlastimil Babka , Mike Rapoport , "Suren Baghdasaryan" , Michal Hocko , "Catalin Marinas" , Jini Susan George , Kees Cook , Michael Ellerman , Nikunj A Dadhania , Ard Biesheuvel , Eric Biggers , Kim Phillips , Joerg Roedel , Ethan Nelson-Moore , "Tycho Andersen (AMD)" , "Liam Merwick" , Michael Kerrisk , Suresh Siddha , Xiaotian Feng , Venkatesh Pallipadi , Andi Kleen , Kiryl Shutsemau , Tony Luck , Jason Gunthorpe , Lu Baolu , Xu Yilun , =?UTF-8?q?Carlos=20L=C3=B3pez?= , Jonathan Cameron , Jori Koolstra , =?UTF-8?q?Thomas=20Wei=C3=9Fschuh?= , "Aneesh Kumar K.V (Arm)" , Ian Campbell , Jeremy Fitzhardinge , Petr Tesarik , "David Howells" , Haavard Skinnemoen , Kenji Kaneshige , =?UTF-8?q?Ilpo=20J=C3=A4rvinen?= , "Christian Marangi" , Dave Jiang , "Michael Kelley" , Ilias Stamatis , "Sumanth Korikkar" , Simona Vetter , Toshi Kani , Greg Kroah-Hartman , Vinod Koul , Jiang Liu , Arnd Bergmann , Anshuman Khandual , Kefeng Wang , "Palmer Dabbelt" , , , , , Alexey Kardashevskiy , , Santosh Shukla , "Pratik R . Sampat" , Scott Soule Cheloha , Ackerley Tng , Fuad Tabba Subject: [RFC PATCH kernel 12/17] coco/sev-guest: Allow multiple source files in the driver Date: Wed, 16 Sep 2026 21:51:52 +1000 Message-ID: <20260916115159.1938195-13-aik@amd.com> X-Mailer: git-send-email 2.55.0 In-Reply-To: <20260916115159.1938195-1-aik@amd.com> References: <20260916115159.1938195-1-aik@amd.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Content-Type: text/plain X-ClientProxiedBy: satlexmb08.amd.com (10.181.42.217) To satlexmb07.amd.com (10.181.42.216) X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: SJ5PEPF00000207:EE_|MW6PR12MB8663:EE_ X-MS-Office365-Filtering-Correlation-Id: 2b51706f-555c-417b-6072-08df13ea0b92 X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0;ARA:13230040|32650700020|82310400026|376014|1800799024|7416014|36860700016|23010399003|18002099003|22082099003|10067099003|56012099006|11063799006; X-Microsoft-Antispam-Message-Info: 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 X-Forefront-Antispam-Report: CIP:165.204.84.17;CTRY:US;LANG:en;SCL:1;SRV:;IPV:NLI;SFV:NSPM;H:satlexmb07.amd.com;PTR:InfoDomainNonexistent;CAT:NONE;SFS:(13230040)(32650700020)(82310400026)(376014)(1800799024)(7416014)(36860700016)(23010399003)(18002099003)(22082099003)(10067099003)(56012099006)(11063799006);DIR:OUT;SFP:1101; X-MS-Exchange-AntiSpam-MessageData-ChunkCount: 1 X-MS-Exchange-AntiSpam-MessageData-0: mS/imRrmbpxps67qGJxsphoc6eABPi9uEQAis97tyVjMcE7n1lUTb6+nlr386lpHVT/77AfVBAUGjtAsAI5U9VXIwQoNQqyOCrtenVvuZ6eZw8IQ01EvVcJIJZKPAyUI4IO5d87YjfhcEbh3mwPSHX0ytq1np4FzH1zAlBJzgfTo8p0WT7ftEYpWH/8xtuWrky0lg7Vb96bVRK0Oeh6Z/Bqtz30YVY0Ax3IUkvh2HhjL40wS9DrhCJBLx7/jYYe/jKEXsV+a4EnUeg6An48phGGuN8HGBTtQ3lpe6CODT1Jd3R3JIsEO3VlQNWWwvtg/FD5FsLXAXzDKQGVzf+GeBuklrtxXE/UOq8e27ANdgmihgrEF0Zlccza6kUJgBTwzV1Cp83zG4TJU548hlWxppR2g/9S2jzp+mAiL2crSmfzp8SlYOzleDPsozfr+5czZ X-OriginatorOrg: amd.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 16 Sep 2026 12:00:04.6040 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 2b51706f-555c-417b-6072-08df13ea0b92 X-MS-Exchange-CrossTenant-Id: 3dd8961f-e488-4e60-8e11-a82d994e183d X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=3dd8961f-e488-4e60-8e11-a82d994e183d;Ip=[165.204.84.17];Helo=[satlexmb07.amd.com] X-MS-Exchange-CrossTenant-AuthSource: SJ5PEPF00000207.namprd05.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: MW6PR12MB8663 Prepare for SEV-TIO support as it is going to equal or bigger than the existing sev_guest.c which is already 700 lines and keeps growing. No behavioural change expected. Signed-off-by: Alexey Kardashevskiy --- drivers/virt/coco/sev-guest/Makefile | 2 +- drivers/virt/coco/sev-guest/sev-guest.h | 16 ++++++++++++++++ drivers/virt/coco/sev-guest/{sev-guest.c => core.c} | 10 ++-------- 3 files changed, 19 insertions(+), 9 deletions(-) diff --git a/drivers/virt/coco/sev-guest/Makefile b/drivers/virt/coco/sev-guest/Makefile index 63d67c27723a..a8eb28b6736e 100644 --- a/drivers/virt/coco/sev-guest/Makefile +++ b/drivers/virt/coco/sev-guest/Makefile @@ -1,2 +1,2 @@ # SPDX-License-Identifier: GPL-2.0-only -obj-$(CONFIG_SEV_GUEST) += sev-guest.o +obj-$(CONFIG_SEV_GUEST) += core.o diff --git a/drivers/virt/coco/sev-guest/sev-guest.h b/drivers/virt/coco/sev-guest/sev-guest.h new file mode 100644 index 000000000000..b2a97778e635 --- /dev/null +++ b/drivers/virt/coco/sev-guest/sev-guest.h @@ -0,0 +1,16 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ + +#ifndef __SEV_GUEST_H__ +#define __SEV_GUEST_H__ + +#include +#include + +struct snp_guest_dev { + struct device *dev; + struct miscdevice misc; + + struct snp_msg_desc *msg_desc; +}; + +#endif /* __SEV_GUEST_H__ */ diff --git a/drivers/virt/coco/sev-guest/sev-guest.c b/drivers/virt/coco/sev-guest/core.c similarity index 99% rename from drivers/virt/coco/sev-guest/sev-guest.c rename to drivers/virt/coco/sev-guest/core.c index 935537a41469..98f698809720 100644 --- a/drivers/virt/coco/sev-guest/sev-guest.c +++ b/drivers/virt/coco/sev-guest/core.c @@ -27,19 +27,13 @@ #include #include -#include + +#include "sev-guest.h" #define DEVICE_NAME "sev-guest" #define SVSM_MAX_RETRIES 3 -struct snp_guest_dev { - struct device *dev; - struct miscdevice misc; - - struct snp_msg_desc *msg_desc; -}; - /* * The VMPCK ID represents the key used by the SNP guest to communicate with the * SEV firmware in the AMD Secure Processor (ASP, aka PSP). By default, the key -- 2.55.0