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added cpu_physical_memory_write_rom()

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git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@1833 c046a42c-6fe2-441c-8c8c-71466251a162
This commit is contained in:
bellard 2006-04-23 17:14:48 +00:00
parent b37837317f
commit d0ecd2aaf9
2 changed files with 41 additions and 0 deletions
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2
cpu-all.h
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@ -857,6 +857,8 @@ void stw_phys(target_phys_addr_t addr, uint32_t val);
void stl_phys(target_phys_addr_t addr, uint32_t val); void stl_phys(target_phys_addr_t addr, uint32_t val);
void stq_phys(target_phys_addr_t addr, uint64_t val); void stq_phys(target_phys_addr_t addr, uint64_t val);
void cpu_physical_memory_write_rom(target_phys_addr_t addr,
const uint8_t *buf, int len);
int cpu_memory_rw_debug(CPUState *env, target_ulong addr, int cpu_memory_rw_debug(CPUState *env, target_ulong addr,
uint8_t *buf, int len, int is_write); uint8_t *buf, int len, int is_write);

39
exec.c
View File

@ -2080,6 +2080,45 @@ void cpu_physical_memory_rw(target_phys_addr_t addr, uint8_t *buf,
} }
} }
/* used for ROM loading : can write in RAM and ROM */
void cpu_physical_memory_write_rom(target_phys_addr_t addr,
const uint8_t *buf, int len)
{
int l;
uint8_t *ptr;
target_phys_addr_t page;
unsigned long pd;
PhysPageDesc *p;
while (len > 0) {
page = addr & TARGET_PAGE_MASK;
l = (page + TARGET_PAGE_SIZE) - addr;
if (l > len)
l = len;
p = phys_page_find(page >> TARGET_PAGE_BITS);
if (!p) {
pd = IO_MEM_UNASSIGNED;
} else {
pd = p->phys_offset;
}
if ((pd & ~TARGET_PAGE_MASK) != IO_MEM_RAM &&
(pd & ~TARGET_PAGE_MASK) != IO_MEM_ROM) {
/* do nothing */
} else {
unsigned long addr1;
addr1 = (pd & TARGET_PAGE_MASK) + (addr & ~TARGET_PAGE_MASK);
/* ROM/RAM case */
ptr = phys_ram_base + addr1;
memcpy(ptr, buf, l);
}
len -= l;
buf += l;
addr += l;
}
}
/* warning: addr must be aligned */ /* warning: addr must be aligned */
uint32_t ldl_phys(target_phys_addr_t addr) uint32_t ldl_phys(target_phys_addr_t addr)
{ {