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fixed PCI config default write permissions

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git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@878 c046a42c-6fe2-441c-8c8c-71466251a162
This commit is contained in:
bellard 2004-06-03 16:40:20 +00:00
parent 7727994d21
commit 1f62d9383f
1 changed files with 48 additions and 14 deletions
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62
hw/pci.c
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@ -255,21 +255,49 @@ void pci_default_write_config(PCIDevice *d,
addr = address;
for(i = 0; i < len; i++) {
/* default read/write accesses */
switch(addr) {
switch(d->config[0x0e]) {
case 0x00:
case 0x01:
case 0x02:
case 0x03:
case 0x08:
case 0x09:
case 0x0a:
case 0x0b:
case 0x0e:
case 0x3d:
can_write = 0;
case 0x80:
switch(addr) {
case 0x00:
case 0x01:
case 0x02:
case 0x03:
case 0x08:
case 0x09:
case 0x0a:
case 0x0b:
case 0x0e:
case 0x10 ... 0x27: /* base */
case 0x30 ... 0x33: /* rom */
case 0x3d:
can_write = 0;
break;
default:
can_write = 1;
break;
}
break;
default:
can_write = 1;
case 0x01:
switch(addr) {
case 0x00:
case 0x01:
case 0x02:
case 0x03:
case 0x08:
case 0x09:
case 0x0a:
case 0x0b:
case 0x0e:
case 0x38 ... 0x3b: /* rom */
case 0x3d:
can_write = 0;
break;
default:
can_write = 1;
break;
}
break;
}
if (can_write) {
@ -986,10 +1014,10 @@ static void pci_bios_init_device(PCIDevice *d)
int i, pin, pic_irq, vendor_id, device_id;
class = pci_config_readw(d, PCI_CLASS_DEVICE);
vendor_id = pci_config_readw(d, PCI_VENDOR_ID);
device_id = pci_config_readw(d, PCI_DEVICE_ID);
switch(class) {
case 0x0101:
vendor_id = pci_config_readw(d, PCI_VENDOR_ID);
device_id = pci_config_readw(d, PCI_DEVICE_ID);
if (vendor_id == 0x8086 && device_id == 0x7010) {
/* PIIX3 IDE */
pci_config_writew(d, PCI_COMMAND, PCI_COMMAND_IO);
@ -1006,6 +1034,12 @@ static void pci_bios_init_device(PCIDevice *d)
/* VGA: map frame buffer to default Bochs VBE address */
pci_set_io_region_addr(d, 0, 0xE0000000);
break;
case 0xff00:
if (vendor_id == 0x0106b && device_id == 0x0017) {
/* macio bridge */
pci_set_io_region_addr(d, 0, 0x80800000);
}
break;
default:
/* default memory mappings */
for(i = 0; i < PCI_NUM_REGIONS; i++) {