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X-MS-Exchange-AntiSpam-MessageData-ChunkCount: 1 X-MS-Exchange-AntiSpam-MessageData-0: =?utf-8?q?/plPiTKq8xARq+HjzhHMdK1a0c0d?= =?utf-8?q?rQQB7b5qMI4uISexbBXijNGQ2l9Ul2HYpdAxNAAY3nfIqLvKes3PNfF4TClkXFh7G?= =?utf-8?q?hlzxWB8iZ4FaA7UJ2lsAIEDwM0XLuiX8xudimgkIF67Gp4FHD67xla6JvjGvAA2m/?= =?utf-8?q?2T8KMap7hMq9knpz64o6xizCyV7XnJCmr7a5iLWW7QouOsaMIRpzb60GrqhZLMQya?= =?utf-8?q?8TroR0pRySuyM4vwxGA9/vTcJKZbHBgAXLm3WwHrItM3Xgxu/4UAdu5CNkIQDSqKQ?= =?utf-8?q?mv01tBwHX1ntMzS6PRK07mIW9GAkNsxu1vkYGhPGPdgrdj4a8SBfTm6WMA0d8uBeP?= =?utf-8?q?PypAc/o6yAv8PiBkG2VVx0YhBZx9Ge16gEjh0WlcDbSiQoFSZ6FNjwBS2BjrzR/vk?= =?utf-8?q?jazxtoFzw+8p8aSOHTbxOPfUHaA3amOCl5p3C1rKjGU70YvKIpeFjG55GGnSbXYxG?= =?utf-8?q?dlDA8k53VcO1rmXPjC56CEKLxmWr51rqr2EWfi23qYxMh0IL2pIOIBvSdpsh8yZ90?= =?utf-8?q?W8aLXBm9535SHE+XnA0kLLpSTLozZoxIbMm2smeHLAk1VX5QwhkSokUAHQfuzzQqp?= =?utf-8?q?81HhYVg2NsWdFs3EWbIUZb9NFw7IsjB2gzMl+BwGHrYPUYogUdOFAleTswmSmJNne?= =?utf-8?q?NapR3lCTZxP3V6kNyNyXtM3Ol3d0A+/E4eIVB9CrQKjp0BGfRvAKiy5kvpbRQ3ua+?= =?utf-8?q?JfhyZVWlxR/p/kLe6TNUsJCSr+d/udsj6EG3sY4JkBZvH6WtcNjQZdwdNtaHFQwHm?= =?utf-8?q?l29qsdmnZ5R10gwnsbl3+v12NBk6vwntt0P5AfKcUcn58aRC29tM/vjoAw7kgm3KJ?= =?utf-8?q?PQJF9G/0Y72tgnEChHxlEr3TiZGxy1O4ELP7Mvz3LsVUXAr0ioU61Cf2oviDSSKMo?= =?utf-8?q?fzBoEJLYNlujW4hnibkwx1Q/dsG+LQGdFmXaUihgBfuV4uLMRDcMOeyXSAOZi3mco?= =?utf-8?q?lmBQL5pJfJLlE6zb/K2tJqqnKKZk/1DpbnjNm7ahevp+Jt/6OowiDQKgoUPVV7pwM?= =?utf-8?q?6hy8tC1TKIZ3hJnIwALpos+IY6obk8/cWsxQBFzUQAzW9YtWQwUP65nbpGpFIgC8i?= =?utf-8?q?36nrERgLPti1x9ZZHfOOofMEY31mmDAsCv5vGrb8YyvvVe7ocSXfnbqOLMbShnoT/?= =?utf-8?q?OZgR0LIC7DZ9SnyjvZ9i4ah9XripFp1Hc2/C22THXCHvGehI3NFqvwJQe5eSiwtIV?= =?utf-8?q?3kdEMValiZgM23tvuzJHpyMPWPy7tdMkCFe2RKo3gY34M2bdXPxQHzc6406LJrc2E?= =?utf-8?q?ns0+fDvylixDtzIZak00xEUXRceFLX8errqUvdmaeiwZKB2tAndshW+7KcdQSHJv9?= =?utf-8?q?YVunaqT8YuQY3m3XFv8FHvyGxBn1gunB4C82lOySk5e6I02nTqvsN4l2SKzqX91Gg?= =?utf-8?q?zHI1S5aPstrudtiKPbCKOa5TSSqwWmmkOLzRYLpKC0HdL5fULEq4oEm9CKsIIrdcn?= =?utf-8?q?hJGiJxeqXQ/sE90V/2kuLOtwIaZlPmegeQcWEGltTvkdV5hVOQVVjvzhyO+jyAIDE?= =?utf-8?q?fwMprNcpN2im5ne3lf06EEQJbYfyvAI4Paomh+v2pmHRRoaIKg9YWmQ=3D?= X-MS-Exchange-CrossTenant-Network-Message-Id: 6bc99fad-fe4d-43ce-36c8-08d9f1376731 X-MS-Exchange-CrossTenant-AuthSource: SA0PR03MB5610.namprd03.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-OriginalArrivalTime: 16 Feb 2022 10:30:50.8284 (UTC) X-MS-Exchange-CrossTenant-FromEntityHeader: Hosted X-MS-Exchange-CrossTenant-Id: 335836de-42ef-43a2-b145-348c2ee9ca5b X-MS-Exchange-CrossTenant-MailboxType: HOSTED X-MS-Exchange-CrossTenant-UserPrincipalName: yQDMQlF1tj0Q3EvqEB3b8KIHoIEtGqODoFmLczt//Crw014CfaRvU3Dkdq3phING3tvoeWNW01Ye3ZeYWY5ZbA== X-MS-Exchange-Transport-CrossTenantHeadersStamped: SJ0PR03MB6256 X-OriginatorOrg: citrix.com Hello, The following series provide a tentative implementation of extended destination ID support for HVM/PVH guests. A specification for the feature can be found at: http://david.woodhou.se/15-bit-msi.pdf Patch 4 is the one I'm having more doubts about: it's the best thing I could come up in order for emulators to signal Xen whether they support parsing the extended destination ID in MSI message address field. This is only required for device models that support PCI passthrough: injection of MSI interrupts from emulated devices is done using XEN_DMOP_inject_msi which already passes the MSI address and data fields to Xen for processing. I think we should likely consider patch 1, as it would allow the OS side of this to make progress (since it's an already present feature in other hypervisors) independently of the Xen side work. Thanks, Roger. Roger Pau Monne (5): x86/cpuid: add CPUID flag for Extended Destination ID support xen/vioapic: add support for the extended destination ID field x86/vmsi: add support for extended destination ID in address field x86/ioreq: report extended destination ID support by emulators x86/cpuid: expose EXT_DEST_ID feature if supported docs/man/xl.cfg.5.pod.in | 10 ++++++ tools/include/libxl.h | 8 +++++ tools/libs/light/libxl_create.c | 6 ++++ tools/libs/light/libxl_types.idl | 1 + tools/libs/light/libxl_x86.c | 12 +++++++ tools/xl/xl_parse.c | 3 ++ xen/arch/arm/ioreq.c | 5 +++ xen/arch/x86/domain.c | 10 +++++- xen/arch/x86/hvm/ioreq.c | 7 +++++ xen/arch/x86/hvm/irq.c | 5 ++- xen/arch/x86/hvm/vioapic.c | 3 ++ xen/arch/x86/hvm/vmsi.c | 43 +++++++++++++++++++------- xen/arch/x86/include/asm/domain.h | 3 ++ xen/arch/x86/include/asm/hvm/hvm.h | 5 +-- xen/arch/x86/include/asm/msi.h | 7 +++++ xen/arch/x86/setup.c | 1 + xen/arch/x86/traps.c | 3 ++ xen/common/ioreq.c | 8 +++-- xen/drivers/passthrough/x86/hvm.c | 11 ++++++- xen/drivers/vpci/msi.c | 2 +- xen/include/public/arch-x86/cpuid.h | 6 ++++ xen/include/public/arch-x86/hvm/save.h | 4 ++- xen/include/public/arch-x86/xen.h | 2 ++ xen/include/public/domctl.h | 3 +- xen/include/public/hvm/dm_op.h | 6 +++- xen/include/xen/ioreq.h | 2 ++ xen/include/xen/vpci.h | 2 +- 27 files changed, 153 insertions(+), 25 deletions(-)