| /* |
| * SPDX-License-Identifier: GPL-2.0-or-later |
| * |
| * uefi-vars device - API of the virtual device for guest/host communication. |
| */ |
| #ifndef QEMU_UEFI_VAR_SERVICE_API_H |
| #define QEMU_UEFI_VAR_SERVICE_API_H |
| |
| /* qom: device names */ |
| #define TYPE_UEFI_VARS_X64 "uefi-vars-x64" |
| #define TYPE_UEFI_VARS_SYSBUS "uefi-vars-sysbus" |
| |
| /* sysbus: fdt node path */ |
| #define UEFI_VARS_FDT_NODE "qemu-uefi-vars" |
| #define UEFI_VARS_FDT_COMPAT "qemu,uefi-vars" |
| |
| /* registers */ |
| #define UEFI_VARS_REG_MAGIC 0x00 /* 16 bit */ |
| #define UEFI_VARS_REG_CMD_STS 0x02 /* 16 bit */ |
| #define UEFI_VARS_REG_BUFFER_SIZE 0x04 /* 32 bit */ |
| #define UEFI_VARS_REG_DMA_BUFFER_ADDR_LO 0x08 /* 32 bit */ |
| #define UEFI_VARS_REG_DMA_BUFFER_ADDR_HI 0x0c /* 32 bit */ |
| #define UEFI_VARS_REG_PIO_BUFFER_TRANSFER 0x10 /* 8-64 bit */ |
| #define UEFI_VARS_REG_PIO_BUFFER_CRC32C 0x18 /* 32 bit (read-only) */ |
| #define UEFI_VARS_REG_FLAGS 0x1c /* 32 bit */ |
| #define UEFI_VARS_REGS_SIZE 0x20 |
| |
| /* flags register */ |
| #define UEFI_VARS_FLAG_USE_PIO (1 << 0) |
| |
| /* magic value */ |
| #define UEFI_VARS_MAGIC_VALUE 0xef1 |
| |
| /* command values */ |
| #define UEFI_VARS_CMD_RESET 0x01 |
| #define UEFI_VARS_CMD_DMA_MM 0x02 |
| #define UEFI_VARS_CMD_PIO_MM 0x03 |
| #define UEFI_VARS_CMD_PIO_ZERO_OFFSET 0x04 |
| |
| /* status values */ |
| #define UEFI_VARS_STS_SUCCESS 0x00 |
| #define UEFI_VARS_STS_BUSY 0x01 |
| #define UEFI_VARS_STS_ERR_UNKNOWN 0x10 |
| #define UEFI_VARS_STS_ERR_NOT_SUPPORTED 0x11 |
| #define UEFI_VARS_STS_ERR_BAD_BUFFER_SIZE 0x12 |
| |
| |
| #endif /* QEMU_UEFI_VAR_SERVICE_API_H */ |
