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target-ppc: fix PowerMAC NVRAM emulation

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Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6132 c046a42c-6fe2-441c-8c8c-71466251a162
This commit is contained in:
aurel32 2008-12-26 23:05:15 +00:00
parent 52f163b7f4
commit 3f7cbbbdd4
1 changed files with 12 additions and 6 deletions
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18
hw/mac_nvram.c
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@ -40,7 +40,7 @@ do { printf("NVR: " fmt , ##args); } while (0)
struct MacIONVRAMState {
target_phys_addr_t size;
int mem_index;
uint8_t data[0x2000];
uint8_t *data;
};
/* Direct access to NVRAM */
@ -49,7 +49,7 @@ uint32_t macio_nvram_read (void *opaque, uint32_t addr)
MacIONVRAMState *s = opaque;
uint32_t ret;
if (addr < 0x2000)
if (addr < s->size)
ret = s->data[addr];
else
ret = -1;
@ -63,7 +63,7 @@ void macio_nvram_write (void *opaque, uint32_t addr, uint32_t val)
MacIONVRAMState *s = opaque;
NVR_DPRINTF("write addr %04x val %x\n", addr, val);
if (addr < 0x2000)
if (addr < s->size)
s->data[addr] = val;
}
@ -73,7 +73,7 @@ static void macio_nvram_writeb (void *opaque,
{
MacIONVRAMState *s = opaque;
addr = (addr >> 4) & 0x1fff;
addr = (addr >> 4) & (s->size - 1);
s->data[addr] = value;
NVR_DPRINTF("writeb addr %04x val %x\n", (int)addr, value);
}
@ -83,7 +83,7 @@ static uint32_t macio_nvram_readb (void *opaque, target_phys_addr_t addr)
MacIONVRAMState *s = opaque;
uint32_t value;
addr = (addr >> 4) & 0x1fff;
addr = (addr >> 4) & (s->size - 1);
value = s->data[addr];
NVR_DPRINTF("readb addr %04x val %x\n", (int)addr, value);
@ -109,7 +109,13 @@ MacIONVRAMState *macio_nvram_init (int *mem_index, target_phys_addr_t size)
s = qemu_mallocz(sizeof(MacIONVRAMState));
if (!s)
return NULL;
s->data = qemu_mallocz(size);
if (!s->data) {
qemu_free(s);
return NULL;
}
s->size = size;
s->mem_index = cpu_register_io_memory(0, nvram_read, nvram_write, s);
*mem_index = s->mem_index;
@ -121,7 +127,7 @@ void macio_nvram_map (void *opaque, target_phys_addr_t mem_base)
MacIONVRAMState *s;
s = opaque;
cpu_register_physical_memory(mem_base, s->size, s->mem_index);
cpu_register_physical_memory(mem_base, s->size << 4, s->mem_index);
}
/* Set up a system OpenBIOS NVRAM partition */