mirror of https://github.com/xqemu/xqemu.git
Key/value based qemu<->guest firmware communication mechanism (Gleb Natapov)
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5256 c046a42c-6fe2-441c-8c8c-71466251a162
This commit is contained in:
parent
b03d0971b3
commit
3cce62435c
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@ -474,6 +474,7 @@ endif #CONFIG_DARWIN_USER
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ifndef CONFIG_USER_ONLY
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ifndef CONFIG_USER_ONLY
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OBJS=vl.o osdep.o monitor.o pci.o loader.o isa_mmio.o machine.o net-checksum.o
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OBJS=vl.o osdep.o monitor.o pci.o loader.o isa_mmio.o machine.o net-checksum.o
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OBJS+=fw_cfg.o
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ifdef CONFIG_WIN32
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ifdef CONFIG_WIN32
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OBJS+=block-raw-win32.o
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OBJS+=block-raw-win32.o
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else
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else
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@ -0,0 +1,289 @@
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/*
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* QEMU Firmware configuration device emulation
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*
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* Copyright (c) 2008 Gleb Natapov
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*/
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#include "hw.h"
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#include "isa.h"
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#include "fw_cfg.h"
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/* debug firmware config */
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//#define DEBUG_FW_CFG
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#ifdef DEBUG_FW_CFG
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#define FW_CFG_DPRINTF(fmt, args...) \
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do { printf("FW_CFG: " fmt , ##args); } while (0)
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#else
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#define FW_CFG_DPRINTF(fmt, args...)
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#endif
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#define FW_CFG_SIZE 2
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typedef struct _FWCfgEntry {
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uint16_t len;
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uint8_t *data;
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void *callback_opaque;
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FWCfgCallback callback;
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} FWCfgEntry;
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typedef struct _FWCfgState {
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FWCfgEntry entries[2][FW_CFG_MAX_ENTRY];
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uint16_t cur_entry;
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uint16_t cur_offset;
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} FWCfgState;
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static void fw_cfg_write(FWCfgState *s, uint8_t value)
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{
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int arch = !!(s->cur_entry & FW_CFG_ARCH_LOCAL);
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FWCfgEntry *e = &s->entries[arch][s->cur_entry & FW_CFG_ENTRY_MASK];
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FW_CFG_DPRINTF("write %d\n", value);
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if (s->cur_entry & FW_CFG_WRITE_CHANNEL && s->cur_offset < e->len) {
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e->data[s->cur_offset++] = value;
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if (s->cur_offset == e->len) {
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e->callback(e->callback_opaque, e->data);
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s->cur_offset = 0;
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}
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}
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}
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static int fw_cfg_select(FWCfgState *s, uint16_t key)
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{
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int ret;
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s->cur_offset = 0;
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if ((key & FW_CFG_ENTRY_MASK) >= FW_CFG_MAX_ENTRY) {
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s->cur_entry = FW_CFG_INVALID;
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ret = 0;
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} else {
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s->cur_entry = key;
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ret = 1;
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}
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FW_CFG_DPRINTF("select key %d (%sfound)\n", key, ret ? "" : "not ");
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return ret;
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}
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static uint8_t fw_cfg_read(FWCfgState *s)
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{
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int arch = !!(s->cur_entry & FW_CFG_ARCH_LOCAL);
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FWCfgEntry *e = &s->entries[arch][s->cur_entry & FW_CFG_ENTRY_MASK];
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uint8_t ret;
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if (s->cur_entry == FW_CFG_INVALID || !e->data || s->cur_offset >= e->len)
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ret = 0;
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else
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ret = e->data[s->cur_offset++];
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FW_CFG_DPRINTF("read %d\n", ret);
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return ret;
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}
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static uint32_t fw_cfg_io_readb(void *opaque, uint32_t addr)
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{
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return fw_cfg_read(opaque);
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}
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static void fw_cfg_io_writeb(void *opaque, uint32_t addr, uint32_t value)
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{
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return fw_cfg_write(opaque, (uint8_t)value);
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}
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static void fw_cfg_io_writew(void *opaque, uint32_t addr, uint32_t value)
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{
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fw_cfg_select(opaque, (uint16_t)value);
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}
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static uint32_t fw_cfg_mem_readb(void *opaque, target_phys_addr_t addr)
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{
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return fw_cfg_read(opaque);
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}
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static void fw_cfg_mem_writeb(void *opaque, target_phys_addr_t addr,
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uint32_t value)
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{
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return fw_cfg_write(opaque, (uint8_t)value);
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}
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static void fw_cfg_mem_writew(void *opaque, target_phys_addr_t addr,
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uint32_t value)
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{
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fw_cfg_select(opaque, (uint16_t)value);
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}
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static CPUReadMemoryFunc *fw_cfg_ctl_mem_read[3] = {
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NULL,
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NULL,
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NULL,
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};
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static CPUWriteMemoryFunc *fw_cfg_ctl_mem_write[3] = {
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NULL,
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fw_cfg_mem_writew,
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NULL,
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};
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static CPUReadMemoryFunc *fw_cfg_data_mem_read[3] = {
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fw_cfg_mem_readb,
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NULL,
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NULL,
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};
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static CPUWriteMemoryFunc *fw_cfg_data_mem_write[3] = {
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fw_cfg_mem_writeb,
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NULL,
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NULL,
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};
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static void fw_cfg_reset(void *opaque)
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{
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FWCfgState *s = opaque;
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fw_cfg_select(s, 0);
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}
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static void fw_cfg_save(QEMUFile *f, void *opaque)
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{
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FWCfgState *s = opaque;
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qemu_put_be16s(f, &s->cur_entry);
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qemu_put_be16s(f, &s->cur_offset);
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}
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static int fw_cfg_load(QEMUFile *f, void *opaque, int version_id)
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{
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FWCfgState *s = opaque;
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if (version_id > 1)
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return -EINVAL;
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qemu_get_be16s(f, &s->cur_entry);
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qemu_get_be16s(f, &s->cur_offset);
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return 0;
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}
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int fw_cfg_add_bytes(void *opaque, uint16_t key, uint8_t *data, uint16_t len)
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{
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FWCfgState *s = opaque;
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int arch = !!(key & FW_CFG_ARCH_LOCAL);
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key &= FW_CFG_ENTRY_MASK;
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if (key >= FW_CFG_MAX_ENTRY)
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return 0;
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s->entries[arch][key].data = data;
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s->entries[arch][key].len = len;
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return 1;
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}
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int fw_cfg_add_i16(void *opaque, uint16_t key, uint16_t value)
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{
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uint16_t *copy;
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copy = qemu_malloc(sizeof(value));
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if (!copy)
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return 0;
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*copy = cpu_to_le16(value);
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return fw_cfg_add_bytes(opaque, key, (uint8_t *)copy, sizeof(value));
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}
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int fw_cfg_add_i32(void *opaque, uint16_t key, uint32_t value)
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{
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uint32_t *copy;
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copy = qemu_malloc(sizeof(value));
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if (!copy)
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return 0;
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*copy = cpu_to_le32(value);
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return fw_cfg_add_bytes(opaque, key, (uint8_t *)copy, sizeof(value));
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}
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int fw_cfg_add_i64(void *opaque, uint16_t key, uint64_t value)
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{
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uint64_t *copy;
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copy = qemu_malloc(sizeof(value));
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if (!copy)
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return 0;
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*copy = cpu_to_le64(value);
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return fw_cfg_add_bytes(opaque, key, (uint8_t *)copy, sizeof(value));
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}
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int fw_cfg_add_callback(void *opaque, uint16_t key, FWCfgCallback callback,
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void *callback_opaque, uint8_t *data, size_t len)
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{
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FWCfgState *s = opaque;
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int arch = !!(key & FW_CFG_ARCH_LOCAL);
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key &= FW_CFG_ENTRY_MASK;
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if (key >= FW_CFG_MAX_ENTRY || !(key & FW_CFG_WRITE_CHANNEL)
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|| len > 65535)
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return 0;
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s->entries[arch][key].data = data;
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s->entries[arch][key].len = len;
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s->entries[arch][key].callback_opaque = callback_opaque;
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s->entries[arch][key].callback = callback;
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return 1;
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}
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void *fw_cfg_init(uint32_t ctl_port, uint32_t data_port,
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target_phys_addr_t ctl_addr, target_phys_addr_t data_addr)
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{
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FWCfgState *s;
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int io_ctl_memory, io_data_memory;
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s = qemu_mallocz(sizeof(FWCfgState));
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if (!s)
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return NULL;
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if (ctl_port) {
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register_ioport_write(ctl_port, 2, 2, fw_cfg_io_writew, s);
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}
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if (data_port) {
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register_ioport_read(data_port, 1, 1, fw_cfg_io_readb, s);
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register_ioport_write(data_port, 1, 1, fw_cfg_io_writeb, s);
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}
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if (ctl_addr) {
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io_ctl_memory = cpu_register_io_memory(0, fw_cfg_ctl_mem_read,
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fw_cfg_ctl_mem_write, s);
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cpu_register_physical_memory(ctl_addr, FW_CFG_SIZE, io_ctl_memory);
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}
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if (data_addr) {
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io_data_memory = cpu_register_io_memory(0, fw_cfg_data_mem_read,
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fw_cfg_data_mem_write, s);
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cpu_register_physical_memory(data_addr, FW_CFG_SIZE, io_data_memory);
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}
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fw_cfg_add_bytes(s, FW_CFG_SIGNATURE, (uint8_t *)"QEMU", 4);
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register_savevm("fw_cfg", -1, 1, fw_cfg_save, fw_cfg_load, s);
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qemu_register_reset(fw_cfg_reset, s);
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fw_cfg_reset(s);
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return s;
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}
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@ -0,0 +1,28 @@
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#ifndef FW_CFG_H
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#define FW_CFG_H
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#define FW_CFG_SIGNATURE 0x00
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#define FW_CFG_ID 0x01
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#define FW_CFG_MAX_ENTRY 0x10
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#define FW_CFG_WRITE_CHANNEL 0x4000
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#define FW_CFG_ARCH_LOCAL 0x8000
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#define FW_CFG_ENTRY_MASK ~(FW_CFG_WRITE_CHANNEL | FW_CFG_ARCH_LOCAL)
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#define FW_CFG_INVALID 0xffff
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#ifndef NO_QEMU_PROTOS
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typedef void (*FWCfgCallback)(void *opaque, uint8_t *data);
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int fw_cfg_add_bytes(void *opaque, uint16_t key, uint8_t *data, uint16_t len);
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int fw_cfg_add_i16(void *opaque, uint16_t key, uint16_t value);
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int fw_cfg_add_i32(void *opaque, uint16_t key, uint32_t value);
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int fw_cfg_add_i64(void *opaque, uint16_t key, uint64_t value);
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int fw_cfg_add_callback(void *opaque, uint16_t key, FWCfgCallback callback,
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void *callback_opaque, uint8_t *data, size_t len);
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void *fw_cfg_init(uint32_t ctl_port, uint32_t data_port,
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target_phys_addr_t crl_addr, target_phys_addr_t data_addr);
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#endif /* NO_QEMU_PROTOS */
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#endif
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7
hw/pc.c
7
hw/pc.c
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@ -32,6 +32,7 @@
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#include "smbus.h"
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#include "smbus.h"
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#include "boards.h"
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#include "boards.h"
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#include "console.h"
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#include "console.h"
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#include "fw_cfg.h"
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/* output Bochs bios info messages */
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/* output Bochs bios info messages */
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//#define DEBUG_BIOS
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//#define DEBUG_BIOS
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@ -44,6 +45,7 @@
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/* Leave a chunk of memory at the top of RAM for the BIOS ACPI tables. */
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/* Leave a chunk of memory at the top of RAM for the BIOS ACPI tables. */
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#define ACPI_DATA_SIZE 0x10000
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#define ACPI_DATA_SIZE 0x10000
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#define BIOS_CFG_IOPORT 0x510
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#define MAX_IDE_BUS 2
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#define MAX_IDE_BUS 2
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@ -416,6 +418,8 @@ static void bochs_bios_write(void *opaque, uint32_t addr, uint32_t val)
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static void bochs_bios_init(void)
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static void bochs_bios_init(void)
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{
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{
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void *fw_cfg;
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register_ioport_write(0x400, 1, 2, bochs_bios_write, NULL);
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register_ioport_write(0x400, 1, 2, bochs_bios_write, NULL);
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register_ioport_write(0x401, 1, 2, bochs_bios_write, NULL);
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register_ioport_write(0x401, 1, 2, bochs_bios_write, NULL);
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register_ioport_write(0x402, 1, 1, bochs_bios_write, NULL);
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register_ioport_write(0x402, 1, 1, bochs_bios_write, NULL);
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@ -426,6 +430,9 @@ static void bochs_bios_init(void)
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register_ioport_write(0x502, 1, 2, bochs_bios_write, NULL);
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register_ioport_write(0x502, 1, 2, bochs_bios_write, NULL);
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register_ioport_write(0x500, 1, 1, bochs_bios_write, NULL);
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register_ioport_write(0x500, 1, 1, bochs_bios_write, NULL);
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register_ioport_write(0x503, 1, 1, bochs_bios_write, NULL);
|
register_ioport_write(0x503, 1, 1, bochs_bios_write, NULL);
|
||||||
|
|
||||||
|
fw_cfg = fw_cfg_init(BIOS_CFG_IOPORT, BIOS_CFG_IOPORT + 1, 0, 0);
|
||||||
|
fw_cfg_add_i32(fw_cfg, FW_CFG_ID, 1);
|
||||||
}
|
}
|
||||||
|
|
||||||
/* Generate an initial boot sector which sets state and jump to
|
/* Generate an initial boot sector which sets state and jump to
|
||||||
|
|
14
hw/sun4m.c
14
hw/sun4m.c
|
@ -34,6 +34,7 @@
|
||||||
#include "scsi.h"
|
#include "scsi.h"
|
||||||
#include "pc.h"
|
#include "pc.h"
|
||||||
#include "isa.h"
|
#include "isa.h"
|
||||||
|
#include "fw_cfg.h"
|
||||||
|
|
||||||
//#define DEBUG_IRQ
|
//#define DEBUG_IRQ
|
||||||
|
|
||||||
|
@ -78,6 +79,7 @@
|
||||||
#define PROM_SIZE_MAX (512 * 1024)
|
#define PROM_SIZE_MAX (512 * 1024)
|
||||||
#define PROM_VADDR 0xffd00000
|
#define PROM_VADDR 0xffd00000
|
||||||
#define PROM_FILENAME "openbios-sparc32"
|
#define PROM_FILENAME "openbios-sparc32"
|
||||||
|
#define CFG_ADDR 0xd00000510ULL
|
||||||
|
|
||||||
// Control plane, 8-bit and 24-bit planes
|
// Control plane, 8-bit and 24-bit planes
|
||||||
#define TCX_SIZE (9 * 1024 * 1024)
|
#define TCX_SIZE (9 * 1024 * 1024)
|
||||||
|
@ -410,6 +412,7 @@ static void sun4m_hw_init(const struct hwdef *hwdef, ram_addr_t RAM_size,
|
||||||
char buf[1024];
|
char buf[1024];
|
||||||
BlockDriverState *fd[MAX_FD];
|
BlockDriverState *fd[MAX_FD];
|
||||||
int drive_index;
|
int drive_index;
|
||||||
|
void *fw_cfg;
|
||||||
|
|
||||||
/* init CPUs */
|
/* init CPUs */
|
||||||
if (!cpu_model)
|
if (!cpu_model)
|
||||||
|
@ -570,6 +573,9 @@ static void sun4m_hw_init(const struct hwdef *hwdef, ram_addr_t RAM_size,
|
||||||
if (hwdef->ecc_base != (target_phys_addr_t)-1)
|
if (hwdef->ecc_base != (target_phys_addr_t)-1)
|
||||||
ecc_init(hwdef->ecc_base, slavio_irq[hwdef->ecc_irq],
|
ecc_init(hwdef->ecc_base, slavio_irq[hwdef->ecc_irq],
|
||||||
hwdef->ecc_version);
|
hwdef->ecc_version);
|
||||||
|
|
||||||
|
fw_cfg = fw_cfg_init(0, 0, CFG_ADDR, CFG_ADDR + 2);
|
||||||
|
fw_cfg_add_i32(fw_cfg, FW_CFG_ID, 1);
|
||||||
}
|
}
|
||||||
|
|
||||||
static void sun4c_hw_init(const struct hwdef *hwdef, ram_addr_t RAM_size,
|
static void sun4c_hw_init(const struct hwdef *hwdef, ram_addr_t RAM_size,
|
||||||
|
@ -589,6 +595,7 @@ static void sun4c_hw_init(const struct hwdef *hwdef, ram_addr_t RAM_size,
|
||||||
char buf[1024];
|
char buf[1024];
|
||||||
BlockDriverState *fd[MAX_FD];
|
BlockDriverState *fd[MAX_FD];
|
||||||
int drive_index;
|
int drive_index;
|
||||||
|
void *fw_cfg;
|
||||||
|
|
||||||
/* init CPU */
|
/* init CPU */
|
||||||
if (!cpu_model)
|
if (!cpu_model)
|
||||||
|
@ -715,6 +722,9 @@ static void sun4c_hw_init(const struct hwdef *hwdef, ram_addr_t RAM_size,
|
||||||
nvram_init(nvram, (uint8_t *)&nd_table[0].macaddr, kernel_cmdline,
|
nvram_init(nvram, (uint8_t *)&nd_table[0].macaddr, kernel_cmdline,
|
||||||
boot_device, RAM_size, kernel_size, graphic_width,
|
boot_device, RAM_size, kernel_size, graphic_width,
|
||||||
graphic_height, graphic_depth, hwdef->machine_id, "Sun4c");
|
graphic_height, graphic_depth, hwdef->machine_id, "Sun4c");
|
||||||
|
|
||||||
|
fw_cfg = fw_cfg_init(0, 0, CFG_ADDR, CFG_ADDR + 2);
|
||||||
|
fw_cfg_add_i32(fw_cfg, FW_CFG_ID, 1);
|
||||||
}
|
}
|
||||||
|
|
||||||
static const struct hwdef hwdefs[] = {
|
static const struct hwdef hwdefs[] = {
|
||||||
|
@ -1405,6 +1415,7 @@ static void sun4d_hw_init(const struct sun4d_hwdef *hwdef, ram_addr_t RAM_size,
|
||||||
int ret;
|
int ret;
|
||||||
char buf[1024];
|
char buf[1024];
|
||||||
int drive_index;
|
int drive_index;
|
||||||
|
void *fw_cfg;
|
||||||
|
|
||||||
/* init CPUs */
|
/* init CPUs */
|
||||||
if (!cpu_model)
|
if (!cpu_model)
|
||||||
|
@ -1528,6 +1539,9 @@ static void sun4d_hw_init(const struct sun4d_hwdef *hwdef, ram_addr_t RAM_size,
|
||||||
nvram_init(nvram, (uint8_t *)&nd_table[0].macaddr, kernel_cmdline,
|
nvram_init(nvram, (uint8_t *)&nd_table[0].macaddr, kernel_cmdline,
|
||||||
boot_device, RAM_size, kernel_size, graphic_width,
|
boot_device, RAM_size, kernel_size, graphic_width,
|
||||||
graphic_height, graphic_depth, hwdef->machine_id, "Sun4d");
|
graphic_height, graphic_depth, hwdef->machine_id, "Sun4d");
|
||||||
|
|
||||||
|
fw_cfg = fw_cfg_init(0, 0, CFG_ADDR, CFG_ADDR + 2);
|
||||||
|
fw_cfg_add_i32(fw_cfg, FW_CFG_ID, 1);
|
||||||
}
|
}
|
||||||
|
|
||||||
/* SPARCserver 1000 hardware initialisation */
|
/* SPARCserver 1000 hardware initialisation */
|
||||||
|
|
|
@ -31,6 +31,7 @@
|
||||||
#include "sysemu.h"
|
#include "sysemu.h"
|
||||||
#include "boards.h"
|
#include "boards.h"
|
||||||
#include "firmware_abi.h"
|
#include "firmware_abi.h"
|
||||||
|
#include "fw_cfg.h"
|
||||||
|
|
||||||
#define KERNEL_LOAD_ADDR 0x00404000
|
#define KERNEL_LOAD_ADDR 0x00404000
|
||||||
#define CMDLINE_ADDR 0x003ff000
|
#define CMDLINE_ADDR 0x003ff000
|
||||||
|
@ -44,6 +45,7 @@
|
||||||
#define PROM_FILENAME "openbios-sparc64"
|
#define PROM_FILENAME "openbios-sparc64"
|
||||||
#define NVRAM_SIZE 0x2000
|
#define NVRAM_SIZE 0x2000
|
||||||
#define MAX_IDE_BUS 2
|
#define MAX_IDE_BUS 2
|
||||||
|
#define BIOS_CFG_IOPORT 0x510
|
||||||
|
|
||||||
struct hwdef {
|
struct hwdef {
|
||||||
const char * const default_cpu_model;
|
const char * const default_cpu_model;
|
||||||
|
@ -270,6 +272,7 @@ static void sun4uv_init(ram_addr_t RAM_size, int vga_ram_size,
|
||||||
int drive_index;
|
int drive_index;
|
||||||
BlockDriverState *hd[MAX_IDE_BUS * MAX_IDE_DEVS];
|
BlockDriverState *hd[MAX_IDE_BUS * MAX_IDE_DEVS];
|
||||||
BlockDriverState *fd[MAX_FD];
|
BlockDriverState *fd[MAX_FD];
|
||||||
|
void *fw_cfg;
|
||||||
|
|
||||||
linux_boot = (kernel_filename != NULL);
|
linux_boot = (kernel_filename != NULL);
|
||||||
|
|
||||||
|
@ -415,6 +418,8 @@ static void sun4uv_init(ram_addr_t RAM_size, int vga_ram_size,
|
||||||
graphic_width, graphic_height, graphic_depth,
|
graphic_width, graphic_height, graphic_depth,
|
||||||
(uint8_t *)&nd_table[0].macaddr);
|
(uint8_t *)&nd_table[0].macaddr);
|
||||||
|
|
||||||
|
fw_cfg = fw_cfg_init(BIOS_CFG_IOPORT, BIOS_CFG_IOPORT + 1, 0, 0);
|
||||||
|
fw_cfg_add_i32(fw_cfg, FW_CFG_ID, 1);
|
||||||
}
|
}
|
||||||
|
|
||||||
static const struct hwdef hwdefs[] = {
|
static const struct hwdef hwdefs[] = {
|
||||||
|
|
Loading…
Reference in New Issue