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roms: rework rom loading via fw 

This patch changes the way rom loading via fw_cfg is handled.
Instead of having pc_init1() call a function which passed all
roms to the firmware config we simply pass a pointer to fw_cfg
to the rom loader.

Advantage: loading roms via firmware works also for devices which
are initialized after pc_init1(), i.e. everyting added via -device.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
This commit is contained in:
Gerd Hoffmann 2010-01-08 15:25:40 +01:00 committed by Anthony Liguori
parent de9352bcae
commit 8832cb805d
3 changed files with 7 additions and 13 deletions
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15
hw/loader.c
View File

@ -535,6 +535,7 @@ struct Rom {
QTAILQ_ENTRY(Rom) next;
};
static FWCfgState *fw_cfg;
static QTAILQ_HEAD(, Rom) roms = QTAILQ_HEAD_INITIALIZER(roms);
int rom_enable_driver_roms;
@ -592,6 +593,8 @@ int rom_add_file(const char *file, const char *fw_dir,
}
close(fd);
rom_insert(rom);
if (rom->fw_file && fw_cfg)
fw_cfg_add_file(fw_cfg, rom->fw_dir, rom->fw_file, rom->data, rom->romsize);
return 0;
err:
@ -681,17 +684,9 @@ int rom_load_all(void)
return 0;
}
int rom_load_fw(void *fw_cfg)
void rom_set_fw(void *f)
{
Rom *rom;
QTAILQ_FOREACH(rom, &roms, next) {
if (!rom->fw_file) {
continue;
}
fw_cfg_add_file(fw_cfg, rom->fw_dir, rom->fw_file, rom->data, rom->romsize);
}
return 0;
fw_cfg = f;
}
static Rom *find_rom(target_phys_addr_t addr)

2
hw/loader.h
View File

@ -25,7 +25,7 @@ int rom_add_file(const char *file, const char *fw_dir,
int rom_add_blob(const char *name, const void *blob, size_t len,
target_phys_addr_t addr);
int rom_load_all(void);
int rom_load_fw(void *fw_cfg);
void rom_set_fw(void *f);
int rom_copy(uint8_t *dest, target_phys_addr_t addr, size_t size);
void *rom_ptr(target_phys_addr_t addr);
void do_info_roms(Monitor *mon);

3
hw/pc.c
View File

@ -866,6 +866,7 @@ static void pc_init1(ram_addr_t ram_size,
bios_size, bios_offset | IO_MEM_ROM);
fw_cfg = bochs_bios_init();
rom_set_fw(fw_cfg);
if (linux_boot) {
load_linux(fw_cfg, kernel_filename, initrd_filename, kernel_cmdline, below_4g_mem_size);
@ -1026,8 +1027,6 @@ static void pc_init1(ram_addr_t ram_size,
}
}
}
rom_load_fw(fw_cfg);
}
static void pc_init_pci(ram_addr_t ram_size,