projects / mirror_edk2.git / blame
| Commit | Line | Data |
|---|---|---|
| b75d1de5 LE |
1 | /** @file\r |
| 2 | Macros for accessing QEMU's CPU hotplug register block.\r | |
| 3 | \r | |
| 4 | Copyright (C) 2019, Red Hat, Inc.\r | |
| 5 | \r | |
| 6 | SPDX-License-Identifier: BSD-2-Clause-Patent\r | |
| 7 | \r | |
| 8 | @par Specification Reference:\r | |
| 9 | \r | |
| 10 | - "docs/specs/acpi_cpu_hotplug.txt" in the QEMU source tree.\r | |
| 11 | \r | |
| 12 | The original (now "legacy") CPU hotplug interface appeared in QEMU v1.5.0.\r | |
| 13 | The new ("modern") hotplug interface appeared in QEMU v2.7.0.\r | |
| 14 | \r | |
| 15 | The macros in this header file map to the minimal subset of the modern\r | |
| 16 | interface that OVMF needs.\r | |
| 17 | **/\r | |
| 18 | \r | |
| 19 | #ifndef QEMU_CPU_HOTPLUG_H_\r | |
| 20 | #define QEMU_CPU_HOTPLUG_H_\r | |
| 21 | \r | |
| 22 | #include <Base.h>\r | |
| 23 | \r | |
| 24 | //\r | |
| 25 | // Each register offset is:\r | |
| 26 | // - relative to the board-dependent IO base address of the register block,\r | |
| 27 | // - named QEMU_CPUHP_(R|W|RW)_*, according to the possible access modes of the\r | |
| 28 | // register,\r | |
| 29 | // - followed by distinguished bitmasks or values in the register.\r | |
| 30 | //\r | |
| 31 | #define QEMU_CPUHP_R_CMD_DATA2 0x0\r | |
| 32 | \r | |
| 33 | #define QEMU_CPUHP_R_CPU_STAT 0x4\r | |
| 34 | #define QEMU_CPUHP_STAT_ENABLED BIT0\r | |
| 763840c9 LE |
35 | #define QEMU_CPUHP_STAT_INSERT BIT1\r |
| 36 | #define QEMU_CPUHP_STAT_REMOVE BIT2\r | |
| a752dd07 | 37 | #define QEMU_CPUHP_STAT_FW_REMOVE BIT4\r |
| b75d1de5 LE |
38 | \r |
| 39 | #define QEMU_CPUHP_RW_CMD_DATA 0x8\r | |
| 40 | \r | |
| 41 | #define QEMU_CPUHP_W_CPU_SEL 0x0\r | |
| 42 | \r | |
| 43 | #define QEMU_CPUHP_W_CMD 0x5\r | |
| 44 | #define QEMU_CPUHP_CMD_GET_PENDING 0x0\r | |
| f668e788 | 45 | #define QEMU_CPUHP_CMD_GET_ARCH_ID 0x3\r |
| b75d1de5 LE |
46 | \r |
| 47 | #endif // QEMU_CPU_HOTPLUG_H_\r |