diff options
author | Wei Liu <wei.liu@kernel.org> | 2021-02-03 15:04:32 +0000 |
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committer | Wei Liu <wei.liu@kernel.org> | 2021-02-11 08:47:06 +0000 |
commit | 12434e5fb6aed4655340ce74cd2a0dd859dff5bd (patch) | |
tree | 9ee1feec2be3904bbaf892e56105d12a61440d87 /include/asm-generic | |
parent | b59fb7b60d47b2af3a114daf0ae198aa23921698 (diff) | |
download | linux-12434e5fb6aed4655340ce74cd2a0dd859dff5bd.tar.bz2 |
asm-generic/hyperv: introduce hv_device_id and auxiliary structures
We will need to identify the device we want Microsoft Hypervisor to
manipulate. Introduce the data structures for that purpose.
They will be used in a later patch.
Signed-off-by: Sunil Muthuswamy <sunilmut@microsoft.com>
Co-Developed-by: Sunil Muthuswamy <sunilmut@microsoft.com>
Signed-off-by: Wei Liu <wei.liu@kernel.org>
Reviewed-by: Michael Kelley <mikelley@microsoft.com>
Link: https://lore.kernel.org/r/20210203150435.27941-14-wei.liu@kernel.org
Diffstat (limited to 'include/asm-generic')
-rw-r--r-- | include/asm-generic/hyperv-tlfs.h | 79 |
1 files changed, 79 insertions, 0 deletions
diff --git a/include/asm-generic/hyperv-tlfs.h b/include/asm-generic/hyperv-tlfs.h index 723f487f3edc..20457a85c046 100644 --- a/include/asm-generic/hyperv-tlfs.h +++ b/include/asm-generic/hyperv-tlfs.h @@ -624,4 +624,83 @@ struct hv_set_vp_registers_input { } element[]; } __packed; +enum hv_device_type { + HV_DEVICE_TYPE_LOGICAL = 0, + HV_DEVICE_TYPE_PCI = 1, + HV_DEVICE_TYPE_IOAPIC = 2, + HV_DEVICE_TYPE_ACPI = 3, +}; + +typedef u16 hv_pci_rid; +typedef u16 hv_pci_segment; +typedef u64 hv_logical_device_id; +union hv_pci_bdf { + u16 as_uint16; + + struct { + u8 function:3; + u8 device:5; + u8 bus; + }; +} __packed; + +union hv_pci_bus_range { + u16 as_uint16; + + struct { + u8 subordinate_bus; + u8 secondary_bus; + }; +} __packed; + +union hv_device_id { + u64 as_uint64; + + struct { + u64 reserved0:62; + u64 device_type:2; + }; + + /* HV_DEVICE_TYPE_LOGICAL */ + struct { + u64 id:62; + u64 device_type:2; + } logical; + + /* HV_DEVICE_TYPE_PCI */ + struct { + union { + hv_pci_rid rid; + union hv_pci_bdf bdf; + }; + + hv_pci_segment segment; + union hv_pci_bus_range shadow_bus_range; + + u16 phantom_function_bits:2; + u16 source_shadow:1; + + u16 rsvdz0:11; + u16 device_type:2; + } pci; + + /* HV_DEVICE_TYPE_IOAPIC */ + struct { + u8 ioapic_id; + u8 rsvdz0; + u16 rsvdz1; + u16 rsvdz2; + + u16 rsvdz3:14; + u16 device_type:2; + } ioapic; + + /* HV_DEVICE_TYPE_ACPI */ + struct { + u32 input_mapping_base; + u32 input_mapping_count:30; + u32 device_type:2; + } acpi; +} __packed; + #endif |