piix_pci: define symbolic value for PAM0, PAM6 and SMRAM.
Define symbolic value in i440fx configuration space for 0x59, 0x5f and 0x7f and use them. Signed-off-by: Isaku Yamahata <yamahata@valinux.co.jp> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
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@ -44,6 +44,11 @@ struct PCII440FXState {
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PIIX3State *piix3;
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PIIX3State *piix3;
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};
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};
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#define I440FX_PAM 0x59
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#define I440FX_PAM_SIZE 7
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#define I440FX_SMRAM 0x72
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static void piix3_set_irq(void *opaque, int irq_num, int level);
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static void piix3_set_irq(void *opaque, int irq_num, int level);
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/* return the global irq number corresponding to a given device irq
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/* return the global irq number corresponding to a given device irq
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@ -88,12 +93,12 @@ static void i440fx_update_memory_mappings(PCII440FXState *d)
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int i, r;
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int i, r;
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uint32_t smram, addr;
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uint32_t smram, addr;
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update_pam(d, 0xf0000, 0x100000, (d->dev.config[0x59] >> 4) & 3);
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update_pam(d, 0xf0000, 0x100000, (d->dev.config[I440FX_PAM] >> 4) & 3);
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for(i = 0; i < 12; i++) {
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for(i = 0; i < 12; i++) {
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r = (d->dev.config[(i >> 1) + 0x5a] >> ((i & 1) * 4)) & 3;
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r = (d->dev.config[(i >> 1) + (I440FX_PAM + 1)] >> ((i & 1) * 4)) & 3;
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update_pam(d, 0xc0000 + 0x4000 * i, 0xc0000 + 0x4000 * (i + 1), r);
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update_pam(d, 0xc0000 + 0x4000 * i, 0xc0000 + 0x4000 * (i + 1), r);
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}
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}
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smram = d->dev.config[0x72];
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smram = d->dev.config[I440FX_SMRAM];
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if ((d->smm_enabled && (smram & 0x08)) || (smram & 0x40)) {
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if ((d->smm_enabled && (smram & 0x08)) || (smram & 0x40)) {
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cpu_register_physical_memory(0xa0000, 0x20000, 0xa0000);
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cpu_register_physical_memory(0xa0000, 0x20000, 0xa0000);
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} else {
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} else {
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@ -132,7 +137,9 @@ static void i440fx_write_config(PCIDevice *dev,
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/* XXX: implement SMRAM.D_LOCK */
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/* XXX: implement SMRAM.D_LOCK */
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pci_default_write_config(dev, address, val, len);
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pci_default_write_config(dev, address, val, len);
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if ((address >= 0x59 && address <= 0x5f) || address == 0x72)
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if ((address >= I440FX_PAM &&
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address <= I440FX_PAM + I440FX_PAM_SIZE - 1) ||
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address == I440FX_SMRAM)
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i440fx_update_memory_mappings(d);
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i440fx_update_memory_mappings(d);
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}
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}
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@ -196,7 +203,7 @@ static int i440fx_initfn(PCIDevice *dev)
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pci_config_set_class(d->dev.config, PCI_CLASS_BRIDGE_HOST);
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pci_config_set_class(d->dev.config, PCI_CLASS_BRIDGE_HOST);
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d->dev.config[PCI_HEADER_TYPE] = PCI_HEADER_TYPE_NORMAL; // header_type
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d->dev.config[PCI_HEADER_TYPE] = PCI_HEADER_TYPE_NORMAL; // header_type
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d->dev.config[0x72] = 0x02; /* SMRAM */
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d->dev.config[I440FX_SMRAM] = 0x02;
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return 0;
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return 0;
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}
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}
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