projects / mirror_edk2.git / blame
| Commit | Line | Data |
|---|---|---|
| 590f5f09 LE |
1 | /** @file\r |
| 2 | Simple wrapper functions that access QEMU's modern CPU hotplug register\r | |
| 3 | block.\r | |
| 4 | \r | |
| 5 | These functions thinly wrap some of the registers described in\r | |
| 6 | "docs/specs/acpi_cpu_hotplug.txt" in the QEMU source. IO Ports are accessed\r | |
| 7 | via EFI_MM_CPU_IO_PROTOCOL. If a protocol call fails, these functions don't\r | |
| 8 | return.\r | |
| 9 | \r | |
| 10 | Copyright (c) 2020, Red Hat, Inc.\r | |
| 11 | \r | |
| 12 | SPDX-License-Identifier: BSD-2-Clause-Patent\r | |
| 13 | **/\r | |
| 14 | \r | |
| 15 | #ifndef QEMU_CPUHP_H_\r | |
| 16 | #define QEMU_CPUHP_H_\r | |
| 17 | \r | |
| 18 | #include <Protocol/MmCpuIo.h> // EFI_MM_CPU_IO_PROTOCOL\r | |
| 19 | \r | |
| 20 | UINT32\r | |
| 21 | QemuCpuhpReadCommandData2 (\r | |
| 22 | IN CONST EFI_MM_CPU_IO_PROTOCOL *MmCpuIo\r | |
| 23 | );\r | |
| 24 | \r | |
| 25 | UINT8\r | |
| 26 | QemuCpuhpReadCpuStatus (\r | |
| 27 | IN CONST EFI_MM_CPU_IO_PROTOCOL *MmCpuIo\r | |
| 28 | );\r | |
| 29 | \r | |
| 30 | UINT32\r | |
| 31 | QemuCpuhpReadCommandData (\r | |
| 32 | IN CONST EFI_MM_CPU_IO_PROTOCOL *MmCpuIo\r | |
| 33 | );\r | |
| 34 | \r | |
| 35 | VOID\r | |
| 36 | QemuCpuhpWriteCpuSelector (\r | |
| 37 | IN CONST EFI_MM_CPU_IO_PROTOCOL *MmCpuIo,\r | |
| 38 | IN UINT32 Selector\r | |
| 39 | );\r | |
| 40 | \r | |
| 41 | VOID\r | |
| 42 | QemuCpuhpWriteCommand (\r | |
| 43 | IN CONST EFI_MM_CPU_IO_PROTOCOL *MmCpuIo,\r | |
| 44 | IN UINT8 Command\r | |
| 45 | );\r | |
| 46 | \r | |
| 47 | #endif // QEMU_CPUHP_H_\r |