mirror of https://github.com/acidanthera/audk.git
6c9f218bc0
Create the Hardware Info library base together with the specifics to describe PCI Host Bridges. The Hardware Info library is intended to be used for disclosing non-discoverable hardware information from the host to the guest in Ovmf platforms. Core functionality will provide the possibility to parse information from a generic BLOB into runtime structures. The library is conceived in a generic way so that further hardware elements can also be described using it. For such purpose the length of the BLOB is not restricted but instead regarded as a sequence of header-info elements that allow the parsing during runtime. The first type of hardware defined will be PCI host bridges, providing the possibility to define multiple and specify the resources each of them can use. This enables the guest firmware to configure PCI resources properly. Having the size of each individual element favors the reuse of a single interface to convey descriptions of an arbitrary number of heterogenous hardware elements. Furthermore, flexible access mechanisms coupled with the size will grant the possibility of interpreting them in a single run. Define the base types of the generic Hardware Info library to parse heterogeneous data. Also provide the specific changes to support PCI host bridges as the first hardware type supported by the library. Additionally, define the HOST_BRIDGE_INFO structure to describe PCI host bridges along with the functionality to parse such information into proper structures used by the PCI driver in a centralized manner and taking care of versioning. As an example and motivation, the library will be used to define multiple PCI host bridges for complex platforms that require it. The first means of transportation that will be used is going to be fw-cfg, over which a stream of bytes will be transferred and later parsed by the hardware info library. Accordingly, the PCI driver will make use of these host bridges definitions to populate the list of Root Bridges and proceed with the configuration and discovery of underlying hardware components. As mentioned before, the binary data to be parsed by the Hardware Info library should be organized as a sequence of Header-element pairs in which the header describes the type and size of the associated element that comes right after it. As an illustration, to provide inforation of 3 host bridges the data, conceptually, would look like this: Header PCI Host Bridge (type and size) # 1 PCI Host Bridge info # 1 Header PCI Host Bridge (type and size) # 2 PCI Host Bridge info # 2 Header PCI Host Bridge (type and size) # 3 PCI Host Bridge info # 3 Cc: Alexander Graf <graf@amazon.de> Cc: Gerd Hoffmann <kraxel@redhat.com> Acked-by: Gerd Hoffmann <kraxel@redhat.com> Signed-off-by: Nicolas Ojeda Leon <ncoleon@amazon.com> |
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| .. | ||
| AcpiTimerLib | ||
| BaseCachingPciExpressLib | ||
| BaseMemEncryptSevLib | ||
| BaseMemEncryptTdxLib | ||
| BasePciCapLib | ||
| BasePciCapPciSegmentLib | ||
| BhyveFwCtlLib | ||
| BlobVerifierLibNull | ||
| CcProbeLib | ||
| DxePciLibI440FxQ35 | ||
| EmuVariableFvbLib | ||
| GenericQemuLoadImageLib | ||
| HardwareInfoLib | ||
| LoadLinuxLib | ||
| LockBoxLib | ||
| MpInitLibDepLib | ||
| NvVarsFileLib | ||
| PciHostBridgeLib | ||
| PciHostBridgeLibScan | ||
| PciHostBridgeUtilityLib | ||
| PeilessStartupLib | ||
| PlatformBmPrintScLib | ||
| PlatformBootManagerLib | ||
| PlatformBootManagerLibBhyve | ||
| PlatformBootManagerLibGrub | ||
| PlatformDebugLibIoPort | ||
| PlatformFvbLibNull | ||
| PlatformHasIoMmuLib | ||
| PlatformInitLib | ||
| PlatformSecureLib | ||
| PxeBcPcdProducerLib | ||
| QemuBootOrderLib | ||
| QemuFwCfgLib | ||
| QemuFwCfgS3Lib | ||
| QemuFwCfgSimpleParserLib | ||
| ResetSystemLib | ||
| SerializeVariablesLib | ||
| SmbiosVersionLib | ||
| SmmCpuFeaturesLib | ||
| SmmCpuPlatformHookLibQemu | ||
| Tcg2PhysicalPresenceLibNull | ||
| Tcg2PhysicalPresenceLibQemu | ||
| TdxMailboxLib | ||
| TlsAuthConfigLib | ||
| UefiPciCapPciIoLib | ||
| VirtioLib | ||
| VirtioMmioDeviceLib | ||
| VmgExitLib | ||
| X86QemuLoadImageLib | ||
| XenConsoleSerialPortLib | ||
| XenHypercallLib | ||
| XenIoMmioLib | ||
| XenPlatformLib | ||
| XenRealTimeClockLib | ||