+}
+
qemu_irq pc_allocate_cpu_irq(void)
{
return qemu_allocate_irq(pic_irq_request, NULL, 0);
diff --git a/hw/pci-host/piix.c b/hw/pci-host/piix.c
index dec345fd24..317a232972 100644
--- a/hw/pci-host/piix.c
+++ b/hw/pci-host/piix.c
@@ -50,6 +50,7 @@ typedef struct I440FXState {
PCIHostState parent_obj;
Range pci_hole;
uint64_t pci_hole64_size;
+ bool pci_hole64_fix;
uint32_t short_root_bus;
} I440FXState;
@@ -243,11 +244,15 @@ static void i440fx_pcihost_get_pci_hole64_start(Object *obj, Visitor *v,
void *opaque, Error **errp)
{
PCIHostState *h = PCI_HOST_BRIDGE(obj);
+ I440FXState *s = I440FX_PCI_HOST_BRIDGE(obj);
Range w64;
uint64_t value;
pci_bus_get_w64_range(h->bus, &w64);
value = range_is_empty(&w64) ? 0 : range_lob(&w64);
+ if (!value && s->pci_hole64_fix) {
+ value = pc_pci_hole64_start();
+ }
visit_type_uint64(v, name, &value, errp);
}
@@ -256,11 +261,15 @@ static void i440fx_pcihost_get_pci_hole64_end(Object *obj, Visitor *v,
Error **errp)
{
PCIHostState *h = PCI_HOST_BRIDGE(obj);
+ I440FXState *s = I440FX_PCI_HOST_BRIDGE(obj);
Range w64;
uint64_t value;
pci_bus_get_w64_range(h->bus, &w64);
value = range_is_empty(&w64) ? 0 : range_upb(&w64) + 1;
+ if (s->pci_hole64_fix && value < PCI_HOST_PCI_HOLE64_END) {
+ value = PCI_HOST_PCI_HOLE64_END;
+ }
visit_type_uint64(v, name, &value, errp);
}
@@ -857,6 +866,7 @@ static Property i440fx_props[] = {
DEFINE_PROP_SIZE(PCI_HOST_PROP_PCI_HOLE64_SIZE, I440FXState,
pci_hole64_size, DEFAULT_PCI_HOLE64_SIZE),
DEFINE_PROP_UINT32("short_root_bus", I440FXState, short_root_bus, 0),
+ DEFINE_PROP_BOOL("x-pci-hole64-fix", I440FXState, pci_hole64_fix, true),
DEFINE_PROP_END_OF_LIST(),
};
diff --git a/hw/pci-host/q35.c b/hw/pci-host/q35.c
index 1ff648e80c..641213f177 100644
--- a/hw/pci-host/q35.c
+++ b/hw/pci-host/q35.c
@@ -104,11 +104,15 @@ static void q35_host_get_pci_hole64_start(Object *obj,
Visitor *v,
Error **errp)
{
PCIHostState *h = PCI_HOST_BRIDGE(obj);
+ Q35PCIHost *s = Q35_HOST_DEVICE(obj);
Range w64;
uint64_t value;
pci_bus_get_w64_range(h->bus, &w64);
value = range_is_empty(&w64) ? 0 : range_lob(&w64);
+ if (!value && s->pci_hole64_fix) {
+ value = pc_pci_hole64_start();
+ }
visit_type_uint64(v, name, &value, errp);
}
@@ -117,11 +121,15 @@ static void q35_host_get_pci_hole64_end(Object *obj, Visitor *v,
Error **errp)
{
PCIHostState *h = PCI_HOST_BRIDGE(obj);
+ Q35PCIHost *s = Q35_HOST_DEVICE(obj);
Range w64;
uint64_t value;
pci_bus_get_w64_range(h->bus, &w64);
value = range_is_empty(&w64) ? 0 : range_upb(&w64) + 1;
+ if (s->pci_hole64_fix && value < PCI_HOST_PCI_HOLE64_END) {
+ value = PCI_HOST_PCI_HOLE64_END;
+ }
visit_type_uint64(v, name, &value, errp);
}
@@ -143,6 +151,7 @@ static Property q35_host_props[] = {
mch.below_4g_mem_size, 0),
DEFINE_PROP_SIZE(PCI_HOST_ABOVE_4G_MEM_SIZE, Q35PCIHost,
mch.above_4g_mem_size, 0),
+ DEFINE_PROP_BOOL("x-pci-hole64-fix", Q35PCIHost, pci_hole64_fix, true),
DEFINE_PROP_END_OF_LIST(),
};
diff --git a/include/hw/i386/pc.h b/include/hw/i386/pc.h
index 087d184ef5..2e98e8c943 100644
--- a/include/hw/i386/pc.h
+++ b/include/hw/i386/pc.h
@@ -239,6 +239,7 @@ void pc_guest_info_init(PCMachineState *pcms);
#define PCI_HOST_BELOW_4G_MEM_SIZE "below-4g-mem-size"
#define PCI_HOST_ABOVE_4G_MEM_SIZE "above-4g-mem-size"
#define DEFAULT_PCI_HOLE64_SIZE (~0x0ULL)
+#define PCI_HOST_PCI_HOLE64_END (0x1ULL << 40)
void pc_pci_as_mapping_init(Object *owner, MemoryRegion *system_memory,
@@ -249,6 +250,7 @@ void pc_memory_init(PCMachineState *pcms,
MemoryRegion *system_memory,
MemoryRegion *rom_memory,
MemoryRegion **ram_memory);
+uint64_t pc_pci_hole64_start(void);
qemu_irq pc_allocate_cpu_irq(void);
DeviceState *pc_vga_init(ISABus *isa_bus, PCIBus *pci_bus);
void pc_basic_device_init(ISABus *isa_bus, qemu_irq *gsi,
@@ -375,6 +377,14 @@ bool e820_get_entry(int, uint32_t, uint64_t *, uint64_t *);
.driver = TYPE_X86_CPU,\
.property = "x-hv-max-vps",\
.value = "0x40",\
+ },{\
+ .driver = "i440FX-pcihost",\
+ .property = "x-pci-hole64-fix",\
+ .value = "false",\