| #ifndef QEMU_PAM_H |
| #define QEMU_PAM_H |
| |
| /* |
| * Copyright (c) 2006 Fabrice Bellard |
| * Copyright (c) 2011 Isaku Yamahata <yamahata at valinux co jp> |
| * VA Linux Systems Japan K.K. |
| * Copyright (c) 2012 Jason Baron <jbaron@redhat.com> |
| * |
| * Split out from piix.c |
| * |
| * Permission is hereby granted, free of charge, to any person obtaining a copy |
| * of this software and associated documentation files (the "Software"), to deal |
| * in the Software without restriction, including without limitation the rights |
| * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell |
| * copies of the Software, and to permit persons to whom the Software is |
| * furnished to do so, subject to the following conditions: |
| * |
| * The above copyright notice and this permission notice shall be included in |
| * all copies or substantial portions of the Software. |
| * |
| * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
| * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
| * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL |
| * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
| * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, |
| * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN |
| * THE SOFTWARE. |
| */ |
| |
| /* |
| * SMRAM memory area and PAM memory area in Legacy address range for PC. |
| * PAM: Programmable Attribute Map registers |
| * |
| * 0xa0000 - 0xbffff compatible SMRAM |
| * |
| * 0xc0000 - 0xc3fff Expansion area memory segments |
| * 0xc4000 - 0xc7fff |
| * 0xc8000 - 0xcbfff |
| * 0xcc000 - 0xcffff |
| * 0xd0000 - 0xd3fff |
| * 0xd4000 - 0xd7fff |
| * 0xd8000 - 0xdbfff |
| * 0xdc000 - 0xdffff |
| * 0xe0000 - 0xe3fff Extended System BIOS Area Memory Segments |
| * 0xe4000 - 0xe7fff |
| * 0xe8000 - 0xebfff |
| * 0xec000 - 0xeffff |
| * |
| * 0xf0000 - 0xfffff System BIOS Area Memory Segments |
| */ |
| |
| #include "exec/memory.h" |
| |
| #define SMRAM_C_BASE 0xa0000 |
| #define SMRAM_C_END 0xc0000 |
| #define SMRAM_C_SIZE 0x20000 |
| |
| #define PAM_EXPAN_BASE 0xc0000 |
| #define PAM_EXPAN_SIZE 0x04000 |
| |
| #define PAM_EXBIOS_BASE 0xe0000 |
| #define PAM_EXBIOS_SIZE 0x04000 |
| |
| #define PAM_BIOS_BASE 0xf0000 |
| #define PAM_BIOS_END 0xfffff |
| /* 64KB: Intel 3 series express chipset family p. 58*/ |
| #define PAM_BIOS_SIZE 0x10000 |
| |
| /* PAM registers: log nibble and high nibble*/ |
| #define PAM_ATTR_WE ((uint8_t)2) |
| #define PAM_ATTR_RE ((uint8_t)1) |
| #define PAM_ATTR_MASK ((uint8_t)3) |
| |
| /* SMRAM register */ |
| #define SMRAM_D_OPEN ((uint8_t)(1 << 6)) |
| #define SMRAM_D_CLS ((uint8_t)(1 << 5)) |
| #define SMRAM_D_LCK ((uint8_t)(1 << 4)) |
| #define SMRAM_G_SMRAME ((uint8_t)(1 << 3)) |
| #define SMRAM_C_BASE_SEG_MASK ((uint8_t)0x7) |
| #define SMRAM_C_BASE_SEG ((uint8_t)0x2) /* hardwired to b010 */ |
| |
| typedef struct PAMMemoryRegion { |
| MemoryRegion alias[4]; /* index = PAM value */ |
| unsigned current; |
| } PAMMemoryRegion; |
| |
| void init_pam(DeviceState *dev, MemoryRegion *ram, MemoryRegion *system, |
| MemoryRegion *pci, PAMMemoryRegion *mem, uint32_t start, uint32_t size); |
| void pam_update(PAMMemoryRegion *mem, int idx, uint8_t val); |
| |
| #endif /* QEMU_PAM_H */ |
