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rom loader: fix sparc -kernel boot.

Browse source 
Changes:
(1) register pstrcpy_targphys() in rom list, it is used for kernel
command lines by a number of architectures.
(2) add rom_ptr() function to get a pointer for applying changes
to loaded images.  Needed for example to tell the linux kernel
where it finds the initrd image by updating the header.
(3) make sparc use rom_ptr for initrd setup.

booting sparc-test works now, and 'info roms' shows this:

(qemu) info roms
addr=0000000000000000 size=0x2a3828 mem=ram name="phdr #0: vmlinux-2.6.11+tcx"
addr=00000000007ff000 size=0x00000e mem=ram name="cmdline"
addr=0000000000800000 size=0x400000 mem=ram name="/root/qemu-test/sparc-test/linux.img"
addr=0000000070000000 size=0x0e4000 mem=rom name="phdr #0: /home/kraxel/projects/qemu/build-zfull/pc-bios/openbios-sparc32"

reboot via 'system_reset' works too.

Patchworks-ID: 35262
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
This commit is contained in:
Gerd Hoffmann 2009-10-07 13:37:06 +02:00 committed by Anthony Liguori
parent d549db5a73
commit 3c178e72e0
14 changed files with 54 additions and 24 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

2
hw/axis_dev88.c
View file

@ -365,7 +365,7 @@ void axisdev88_init (ram_addr_t ram_size,
/* Let the kernel know we are modifying the cmdline. */
env->regs[10] = 0x87109563;
env->regs[11] = 0x40000000;
pstrcpy_targphys(env->regs[11], 256, kernel_cmdline);
pstrcpy_targphys("cmdline", env->regs[11], 256, kernel_cmdline);
}
}
env->pc = bootstrap_pc;

2
hw/etraxfs.c
View file

@ -157,7 +157,7 @@ void bareetraxfs_init (ram_addr_t ram_size,
/* Let the kernel know we are modifying the cmdline. */
env->regs[10] = 0x87109563;
env->regs[11] = 0x40000000;
pstrcpy_targphys(env->regs[11], 256, kernel_cmdline);
pstrcpy_targphys("cmdline", env->regs[11], 256, kernel_cmdline);
}
}
env->pc = bootstrap_pc;

38
hw/loader.c
View file

@ -108,20 +108,20 @@ int load_image_targphys(const char *filename,
return size;
}
void pstrcpy_targphys(target_phys_addr_t dest, int buf_size,
void pstrcpy_targphys(const char *name, target_phys_addr_t dest, int buf_size,
const char *source)
{
static const uint8_t nul_byte = 0;
const char *nulp;
char *ptr;
if (buf_size <= 0) return;
nulp = memchr(source, 0, buf_size);
if (nulp) {
cpu_physical_memory_write_rom(dest, (uint8_t *)source,
(nulp - source) + 1);
rom_add_blob_fixed(name, source, (nulp - source) + 1, dest);
} else {
cpu_physical_memory_write_rom(dest, (uint8_t *)source, buf_size - 1);
cpu_physical_memory_write_rom(dest, &nul_byte, 1);
rom_add_blob_fixed(name, source, buf_size, dest);
ptr = rom_ptr(dest + buf_size - 1);
*ptr = 0;
}
}
@ -672,6 +672,32 @@ int rom_load_all(void)
return 0;
}
static Rom *find_rom(target_phys_addr_t addr)
{
Rom *rom;
QTAILQ_FOREACH(rom, &roms, next) {
if (rom->max)
continue;
if (rom->min > addr)
continue;
if (rom->min + rom->romsize < addr)
continue;
return rom;
}
return NULL;
}
void *rom_ptr(target_phys_addr_t addr)
{
Rom *rom;
rom = find_rom(addr);
if (!rom || !rom->data)
return NULL;
return rom->data + (addr - rom->min);
}
void do_info_roms(Monitor *mon)
{
Rom *rom;

4
hw/loader.h
View file

@ -15,7 +15,8 @@ int load_uimage(const char *filename, target_phys_addr_t *ep,
int read_targphys(const char *name,
int fd, target_phys_addr_t dst_addr, size_t nbytes);
void pstrcpy_targphys(target_phys_addr_t dest, int buf_size,
void pstrcpy_targphys(const char *name,
target_phys_addr_t dest, int buf_size,
const char *source);
int rom_add_file(const char *file,
@ -23,6 +24,7 @@ int rom_add_file(const char *file,
int rom_add_blob(const char *name, const void *blob, size_t len,
target_phys_addr_t min, target_phys_addr_t max, int align);
int rom_load_all(void);
void *rom_ptr(target_phys_addr_t addr);
void do_info_roms(Monitor *mon);
#define rom_add_file_fixed(_f, _a) \

2
hw/mips_malta.c
View file

@ -679,7 +679,7 @@ static void prom_set(int index, const char *string, ...)
va_start(ap, string);
vsnprintf(buf, ENVP_ENTRY_SIZE, string, ap);
va_end(ap);
pstrcpy_targphys(table_addr + VIRT_TO_PHYS_ADDEND, ENVP_ENTRY_SIZE, buf);
pstrcpy_targphys("prom", table_addr + VIRT_TO_PHYS_ADDEND, ENVP_ENTRY_SIZE, buf);
}
/* Kernel */

2
hw/mips_r4k.c
View file

@ -130,7 +130,7 @@ static void load_kernel (CPUState *env)
} else {
ret = 0;
}
pstrcpy_targphys((16 << 20) - 256 + ret, 256,
pstrcpy_targphys("cmdline", (16 << 20) - 256 + ret, 256,
loaderparams.kernel_cmdline);
stl_phys((16 << 20) - 260, 0x12345678);

2
hw/pc.c
View file

@ -865,7 +865,7 @@ static void load_linux(void *fw_cfg,
initrd_max = max_ram_size-ACPI_DATA_SIZE-1;
/* kernel command line */
rom_add_blob_fixed("linux-cmdline", kernel_cmdline,
rom_add_blob_fixed("cmdline", kernel_cmdline,
strlen(kernel_cmdline)+1, cmdline_addr);
if (protocol >= 0x202) {

2
hw/petalogix_s3adsp1800_mmu.c
View file

@ -176,7 +176,7 @@ petalogix_s3adsp1800_init(ram_addr_t ram_size,
env->regs[5] = ddr_base + kernel_size;
if (kernel_cmdline && (kcmdline_len = strlen(kernel_cmdline))) {
pstrcpy_targphys(env->regs[5], 256, kernel_cmdline);
pstrcpy_targphys("cmdline", env->regs[5], 256, kernel_cmdline);
}
env->regs[6] = 0;
/* Provide a device-tree. */

2
hw/ppc.c
View file

@ -1256,7 +1256,7 @@ int PPC_NVRAM_set_params (nvram_t *nvram, uint16_t NVRAM_size,
NVRAM_set_lword(nvram, 0x3C, kernel_size);
if (cmdline) {
/* XXX: put the cmdline in NVRAM too ? */
pstrcpy_targphys(CMDLINE_ADDR, RAM_size - CMDLINE_ADDR, cmdline);
pstrcpy_targphys("cmdline", CMDLINE_ADDR, RAM_size - CMDLINE_ADDR, cmdline);
NVRAM_set_lword(nvram, 0x40, CMDLINE_ADDR);
NVRAM_set_lword(nvram, 0x44, strlen(cmdline));
} else {

2
hw/ppc_newworld.c
View file

@ -364,7 +364,7 @@ static void ppc_core99_init (ram_addr_t ram_size,
fw_cfg_add_i32(fw_cfg, FW_CFG_KERNEL_SIZE, kernel_size);
if (kernel_cmdline) {
fw_cfg_add_i32(fw_cfg, FW_CFG_KERNEL_CMDLINE, CMDLINE_ADDR);
pstrcpy_targphys(CMDLINE_ADDR, TARGET_PAGE_SIZE, kernel_cmdline);
pstrcpy_targphys("cmdline", CMDLINE_ADDR, TARGET_PAGE_SIZE, kernel_cmdline);
} else {
fw_cfg_add_i32(fw_cfg, FW_CFG_KERNEL_CMDLINE, 0);
}

2
hw/ppc_oldworld.c
View file

@ -384,7 +384,7 @@ static void ppc_heathrow_init (ram_addr_t ram_size,
fw_cfg_add_i32(fw_cfg, FW_CFG_KERNEL_SIZE, kernel_size);
if (kernel_cmdline) {
fw_cfg_add_i32(fw_cfg, FW_CFG_KERNEL_CMDLINE, CMDLINE_ADDR);
pstrcpy_targphys(CMDLINE_ADDR, TARGET_PAGE_SIZE, kernel_cmdline);
pstrcpy_targphys("cmdline", CMDLINE_ADDR, TARGET_PAGE_SIZE, kernel_cmdline);
} else {
fw_cfg_add_i32(fw_cfg, FW_CFG_KERNEL_CMDLINE, 0);
}

2
hw/r2d.c
View file

@ -250,7 +250,7 @@ static void r2d_init(ram_addr_t ram_size,
SDRAM_BASE + LINUX_LOAD_OFFSET,
SDRAM_SIZE - LINUX_LOAD_OFFSET);
env->pc = (SDRAM_BASE + LINUX_LOAD_OFFSET) | 0xa0000000;
pstrcpy_targphys(SDRAM_BASE + 0x10100, 256, kernel_cmdline);
pstrcpy_targphys("cmdline", SDRAM_BASE + 0x10100, 256, kernel_cmdline);
} else {
kernel_size = load_image_targphys(kernel_filename, SDRAM_BASE, SDRAM_SIZE);
env->pc = SDRAM_BASE | 0xa0000000; /* Start from P2 area */

14
hw/sun4m.c
View file

@ -299,6 +299,7 @@ static unsigned long sun4m_load_kernel(const char *kernel_filename,
int linux_boot;
unsigned int i;
long initrd_size, kernel_size;
uint8_t *ptr;
linux_boot = (kernel_filename != NULL);
@ -341,9 +342,10 @@ static unsigned long sun4m_load_kernel(const char *kernel_filename,
}
if (initrd_size > 0) {
for (i = 0; i < 64 * TARGET_PAGE_SIZE; i += TARGET_PAGE_SIZE) {
if (ldl_phys(KERNEL_LOAD_ADDR + i) == 0x48647253) { // HdrS
stl_phys(KERNEL_LOAD_ADDR + i + 16, INITRD_LOAD_ADDR);
stl_phys(KERNEL_LOAD_ADDR + i + 20, initrd_size);
ptr = rom_ptr(KERNEL_LOAD_ADDR + i);
if (ldl_p(ptr) == 0x48647253) { // HdrS
stl_p(ptr + 16, INITRD_LOAD_ADDR);
stl_p(ptr + 20, initrd_size);
break;
}
}
@ -875,7 +877,7 @@ static void sun4m_hw_init(const struct sun4m_hwdef *hwdef, ram_addr_t RAM_size,
fw_cfg_add_i32(fw_cfg, FW_CFG_KERNEL_SIZE, kernel_size);
if (kernel_cmdline) {
fw_cfg_add_i32(fw_cfg, FW_CFG_KERNEL_CMDLINE, CMDLINE_ADDR);
pstrcpy_targphys(CMDLINE_ADDR, TARGET_PAGE_SIZE, kernel_cmdline);
pstrcpy_targphys("cmdline", CMDLINE_ADDR, TARGET_PAGE_SIZE, kernel_cmdline);
} else {
fw_cfg_add_i32(fw_cfg, FW_CFG_KERNEL_CMDLINE, 0);
}
@ -1457,7 +1459,7 @@ static void sun4d_hw_init(const struct sun4d_hwdef *hwdef, ram_addr_t RAM_size,
fw_cfg_add_i32(fw_cfg, FW_CFG_KERNEL_SIZE, kernel_size);
if (kernel_cmdline) {
fw_cfg_add_i32(fw_cfg, FW_CFG_KERNEL_CMDLINE, CMDLINE_ADDR);
pstrcpy_targphys(CMDLINE_ADDR, TARGET_PAGE_SIZE, kernel_cmdline);
pstrcpy_targphys("cmdline", CMDLINE_ADDR, TARGET_PAGE_SIZE, kernel_cmdline);
} else {
fw_cfg_add_i32(fw_cfg, FW_CFG_KERNEL_CMDLINE, 0);
}
@ -1645,7 +1647,7 @@ static void sun4c_hw_init(const struct sun4c_hwdef *hwdef, ram_addr_t RAM_size,
fw_cfg_add_i32(fw_cfg, FW_CFG_KERNEL_SIZE, kernel_size);
if (kernel_cmdline) {
fw_cfg_add_i32(fw_cfg, FW_CFG_KERNEL_CMDLINE, CMDLINE_ADDR);
pstrcpy_targphys(CMDLINE_ADDR, TARGET_PAGE_SIZE, kernel_cmdline);
pstrcpy_targphys("cmdline", CMDLINE_ADDR, TARGET_PAGE_SIZE, kernel_cmdline);
} else {
fw_cfg_add_i32(fw_cfg, FW_CFG_KERNEL_CMDLINE, 0);
}

2
hw/sun4u.c
View file

@ -651,7 +651,7 @@ static void sun4uv_init(ram_addr_t RAM_size,
fw_cfg_add_i32(fw_cfg, FW_CFG_KERNEL_SIZE, kernel_size);
if (kernel_cmdline) {
fw_cfg_add_i32(fw_cfg, FW_CFG_KERNEL_CMDLINE, CMDLINE_ADDR);
pstrcpy_targphys(CMDLINE_ADDR, TARGET_PAGE_SIZE, kernel_cmdline);
pstrcpy_targphys("cmdline", CMDLINE_ADDR, TARGET_PAGE_SIZE, kernel_cmdline);
} else {
fw_cfg_add_i32(fw_cfg, FW_CFG_KERNEL_CMDLINE, 0);
}