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helo=lists.xenproject.org; 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=SATLEXMB04.amd.com; pr=C From: Stewart Hildebrand To: CC: Stewart Hildebrand , Wei Liu , Anthony PERARD , Juergen Gross , Stefano Stabellini , Julien Grall , Bertrand Marquis , Volodymyr Babchuk Subject: [PATCH v3 5/5] [FUTURE] xen/arm: enable vPCI for domUs Date: Mon, 9 Oct 2023 15:57:44 -0400 Message-ID: <20231009195747.889326-6-stewart.hildebrand@amd.com> X-Mailer: git-send-email 2.42.0 In-Reply-To: <20231009195747.889326-1-stewart.hildebrand@amd.com> References: <20231009195747.889326-1-stewart.hildebrand@amd.com> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: BL6PEPF0001AB53:EE_|MW6PR12MB8957:EE_ X-MS-Office365-Filtering-Correlation-Id: ba39dcb4-52ac-4e55-d66b-08dbc90235a7 X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0; 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X-OriginatorOrg: amd.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 09 Oct 2023 19:59:13.0054 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: ba39dcb4-52ac-4e55-d66b-08dbc90235a7 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=[SATLEXMB04.amd.com] X-MS-Exchange-CrossTenant-AuthSource: BL6PEPF0001AB53.namprd02.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: MW6PR12MB8957 X-ZohoMail-DKIM: pass (identity @amd.com) X-ZM-MESSAGEID: 1696881829087100001 Content-Type: text/plain; charset="utf-8" Select HAS_VPCI_GUEST_SUPPORT in Kconfig for enabling vPCI in domUs. Set the pci flags in xen_arch_domainconfig to enable vPCI if a pci device h= as been specified in the xl domain config file. Signed-off-by: Stewart Hildebrand --- As the tag implies, this patch is not intended to be merged (yet). Note that CONFIG_HAS_VPCI_GUEST_SUPPORT is not currently used in the upstre= am code base. It will be used by the vPCI series [1]. This patch is intended t= o be merged as part of the vPCI series. I'll coordinate with Volodymyr to include this in the vPCI series or resend afterwards. Meanwhile, I'll include it he= re until the Kconfig and xen_arch_domainconfig prerequisites have been committ= ed. v2->v3: * set pci flags in toolstack v1->v2: * new patch [1] https://lists.xenproject.org/archives/html/xen-devel/2023-08/msg02361.h= tml --- tools/libs/light/libxl_arm.c | 3 +++ xen/arch/arm/Kconfig | 1 + 2 files changed, 4 insertions(+) diff --git a/tools/libs/light/libxl_arm.c b/tools/libs/light/libxl_arm.c index 15391917748c..931b2f8852ff 100644 --- a/tools/libs/light/libxl_arm.c +++ b/tools/libs/light/libxl_arm.c @@ -222,6 +222,9 @@ int libxl__arch_domain_prepare_config(libxl__gc *gc, config->arch.sve_vl =3D d_config->b_info.arch_arm.sve_vl / 128U; } =20 + if (d_config->num_pcidevs) + config->arch.pci_flags =3D XEN_DOMCTL_CONFIG_PCI_VPCI; + return 0; } =20 diff --git a/xen/arch/arm/Kconfig b/xen/arch/arm/Kconfig index fcb5a0920c5c..6f33373f9035 100644 --- a/xen/arch/arm/Kconfig +++ b/xen/arch/arm/Kconfig @@ -196,6 +196,7 @@ config PCI_PASSTHROUGH depends on ARM_64 select HAS_PCI select HAS_VPCI + select HAS_VPCI_GUEST_SUPPORT default n help This option enables PCI device passthrough --=20 2.42.0