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-rw-r--r--hw/piix_pci.c117
1 files changed, 41 insertions, 76 deletions
diff --git a/hw/piix_pci.c b/hw/piix_pci.c
index c497a014af..3d79c73fda 100644
--- a/hw/piix_pci.c
+++ b/hw/piix_pci.c
@@ -24,19 +24,22 @@
#include "hw.h"
#include "pc.h"
-#include "pci.h"
-#include "pci_host.h"
+#include "pci/pci.h"
+#include "pci/pci_host.h"
#include "isa.h"
#include "sysbus.h"
-#include "range.h"
+#include "qemu/range.h"
#include "xen.h"
+#include "pam.h"
/*
* I440FX chipset data sheet.
* http://download.intel.com/design/chipsets/datashts/29054901.pdf
*/
-typedef PCIHostState I440FXState;
+typedef struct I440FXState {
+ PCIHostState parent_obj;
+} I440FXState;
#define PIIX_NUM_PIC_IRQS 16 /* i8259 * 2 */
#define PIIX_NUM_PIRQS 4ULL /* PIRQ[A-D] */
@@ -66,11 +69,6 @@ typedef struct PIIX3State {
int32_t pci_irq_levels_vmstate[PIIX_NUM_PIRQS];
} PIIX3State;
-typedef struct PAMMemoryRegion {
- MemoryRegion mem;
- bool initialized;
-} PAMMemoryRegion;
-
struct PCII440FXState {
PCIDevice dev;
MemoryRegion *system_memory;
@@ -103,56 +101,16 @@ static int pci_slot_get_pirq(PCIDevice *pci_dev, int pci_intx)
return (pci_intx + slot_addend) & 3;
}
-static void update_pam(PCII440FXState *d, uint32_t start, uint32_t end, int r,
- PAMMemoryRegion *mem)
-{
- if (mem->initialized) {
- memory_region_del_subregion(d->system_memory, &mem->mem);
- memory_region_destroy(&mem->mem);
- }
-
- // printf("ISA mapping %08x-0x%08x: %d\n", start, end, r);
- switch(r) {
- case 3:
- /* RAM */
- memory_region_init_alias(&mem->mem, "pam-ram", d->ram_memory,
- start, end - start);
- break;
- case 1:
- /* ROM (XXX: not quite correct) */
- memory_region_init_alias(&mem->mem, "pam-rom", d->ram_memory,
- start, end - start);
- memory_region_set_readonly(&mem->mem, true);
- break;
- case 2:
- case 0:
- /* XXX: should distinguish read/write cases */
- memory_region_init_alias(&mem->mem, "pam-pci", d->pci_address_space,
- start, end - start);
- break;
- }
- memory_region_add_subregion_overlap(d->system_memory,
- start, &mem->mem, 1);
- mem->initialized = true;
-}
-
static void i440fx_update_memory_mappings(PCII440FXState *d)
{
- int i, r;
- uint32_t smram;
- bool smram_enabled;
+ int i;
memory_region_transaction_begin();
- update_pam(d, 0xf0000, 0x100000, (d->dev.config[I440FX_PAM] >> 4) & 3,
- &d->pam_regions[0]);
- for(i = 0; i < 12; i++) {
- r = (d->dev.config[(i >> 1) + (I440FX_PAM + 1)] >> ((i & 1) * 4)) & 3;
- update_pam(d, 0xc0000 + 0x4000 * i, 0xc0000 + 0x4000 * (i + 1), r,
- &d->pam_regions[i+1]);
+ for (i = 0; i < 13; i++) {
+ pam_update(&d->pam_regions[i], i,
+ d->dev.config[I440FX_PAM + ((i + 1) / 2)]);
}
- smram = d->dev.config[I440FX_SMRAM];
- smram_enabled = (d->smm_enabled && (smram & 0x08)) || (smram & 0x40);
- memory_region_set_enabled(&d->smram_region, !smram_enabled);
+ smram_update(&d->smram_region, d->dev.config[I440FX_SMRAM], d->smm_enabled);
memory_region_transaction_commit();
}
@@ -160,11 +118,10 @@ static void i440fx_set_smm(int val, void *arg)
{
PCII440FXState *d = arg;
- val = (val != 0);
- if (d->smm_enabled != val) {
- d->smm_enabled = val;
- i440fx_update_memory_mappings(d);
- }
+ memory_region_transaction_begin();
+ smram_set_smm(&d->smm_enabled, val, d->dev.config[I440FX_SMRAM],
+ &d->smram_region);
+ memory_region_transaction_commit();
}
@@ -225,7 +182,7 @@ static const VMStateDescription vmstate_i440fx = {
static int i440fx_pcihost_initfn(SysBusDevice *dev)
{
- I440FXState *s = FROM_SYSBUS(I440FXState, dev);
+ PCIHostState *s = PCI_HOST_BRIDGE(dev);
memory_region_init_io(&s->conf_mem, &pci_host_conf_le_ops, s,
"pci-conf-idx", 4);
@@ -257,24 +214,25 @@ static PCIBus *i440fx_common_init(const char *device_name,
MemoryRegion *address_space_mem,
MemoryRegion *address_space_io,
ram_addr_t ram_size,
- target_phys_addr_t pci_hole_start,
- target_phys_addr_t pci_hole_size,
- target_phys_addr_t pci_hole64_start,
- target_phys_addr_t pci_hole64_size,
+ hwaddr pci_hole_start,
+ hwaddr pci_hole_size,
+ hwaddr pci_hole64_start,
+ hwaddr pci_hole64_size,
MemoryRegion *pci_address_space,
MemoryRegion *ram_memory)
{
DeviceState *dev;
PCIBus *b;
PCIDevice *d;
- I440FXState *s;
+ PCIHostState *s;
PIIX3State *piix3;
PCII440FXState *f;
+ unsigned i;
dev = qdev_create(NULL, "i440FX-pcihost");
- s = FROM_SYSBUS(I440FXState, sysbus_from_qdev(dev));
+ s = PCI_HOST_BRIDGE(dev);
s->address_space = address_space_mem;
- b = pci_bus_new(&s->busdev.qdev, NULL, pci_address_space,
+ b = pci_bus_new(dev, NULL, pci_address_space,
address_space_io, 0);
s->bus = b;
object_property_add_child(qdev_get_machine(), "i440fx", OBJECT(dev), NULL);
@@ -301,6 +259,13 @@ static PCIBus *i440fx_common_init(const char *device_name,
memory_region_add_subregion_overlap(f->system_memory, 0xa0000,
&f->smram_region, 1);
memory_region_set_enabled(&f->smram_region, false);
+ init_pam(f->ram_memory, f->system_memory, f->pci_address_space,
+ &f->pam_regions[0], PAM_BIOS_BASE, PAM_BIOS_SIZE);
+ for (i = 0; i < 12; ++i) {
+ init_pam(f->ram_memory, f->system_memory, f->pci_address_space,
+ &f->pam_regions[i+1], PAM_EXPAN_BASE + i * PAM_EXPAN_SIZE,
+ PAM_EXPAN_SIZE);
+ }
/* Xen supports additional interrupt routes from the PCI devices to
* the IOAPIC: the four pins of each PCI device on the bus are also
@@ -339,10 +304,10 @@ PCIBus *i440fx_init(PCII440FXState **pi440fx_state, int *piix3_devfn,
MemoryRegion *address_space_mem,
MemoryRegion *address_space_io,
ram_addr_t ram_size,
- target_phys_addr_t pci_hole_start,
- target_phys_addr_t pci_hole_size,
- target_phys_addr_t pci_hole64_start,
- target_phys_addr_t pci_hole64_size,
+ hwaddr pci_hole_start,
+ hwaddr pci_hole_size,
+ hwaddr pci_hole64_start,
+ hwaddr pci_hole64_size,
MemoryRegion *pci_memory, MemoryRegion *ram_memory)
{
@@ -537,7 +502,7 @@ static void piix3_class_init(ObjectClass *klass, void *data)
k->class_id = PCI_CLASS_BRIDGE_ISA;
}
-static TypeInfo piix3_info = {
+static const TypeInfo piix3_info = {
.name = "PIIX3",
.parent = TYPE_PCI_DEVICE,
.instance_size = sizeof(PIIX3State),
@@ -560,7 +525,7 @@ static void piix3_xen_class_init(ObjectClass *klass, void *data)
k->class_id = PCI_CLASS_BRIDGE_ISA;
};
-static TypeInfo piix3_xen_info = {
+static const TypeInfo piix3_xen_info = {
.name = "PIIX3-xen",
.parent = TYPE_PCI_DEVICE,
.instance_size = sizeof(PIIX3State),
@@ -584,7 +549,7 @@ static void i440fx_class_init(ObjectClass *klass, void *data)
dc->vmsd = &vmstate_i440fx;
}
-static TypeInfo i440fx_info = {
+static const TypeInfo i440fx_info = {
.name = "i440FX",
.parent = TYPE_PCI_DEVICE,
.instance_size = sizeof(PCII440FXState),
@@ -601,9 +566,9 @@ static void i440fx_pcihost_class_init(ObjectClass *klass, void *data)
dc->no_user = 1;
}
-static TypeInfo i440fx_pcihost_info = {
+static const TypeInfo i440fx_pcihost_info = {
.name = "i440FX-pcihost",
- .parent = TYPE_SYS_BUS_DEVICE,
+ .parent = TYPE_PCI_HOST_BRIDGE,
.instance_size = sizeof(I440FXState),
.class_init = i440fx_pcihost_class_init,
};
generated by cgit v1.2.3-55-g7522 (git 2.39.0) at 2025-04-25 01:07:36 +0200