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Diffstat (limited to 'hw')
-rw-r--r--hw/i386/pc_piix.c1
-rw-r--r--hw/pci-host/piix.c11
2 files changed, 3 insertions, 9 deletions
diff --git a/hw/i386/pc_piix.c b/hw/i386/pc_piix.c
index 832e20c226..276641436e 100644
--- a/hw/i386/pc_piix.c
+++ b/hw/i386/pc_piix.c
@@ -170,6 +170,7 @@ static void pc_init1(QEMUMachineInitArgs *args,
if (pci_enabled) {
pci_bus = i440fx_init(&i440fx_state, &piix3_devfn, &isa_bus, gsi,
system_memory, system_io, args->ram_size,
+ below_4g_mem_size,
above_4g_mem_size,
pci_memory, ram_memory);
} else {
diff --git a/hw/pci-host/piix.c b/hw/pci-host/piix.c
index 63be7f6cee..4229d09acf 100644
--- a/hw/pci-host/piix.c
+++ b/hw/pci-host/piix.c
@@ -311,6 +311,7 @@ PCIBus *i440fx_init(PCII440FXState **pi440fx_state,
MemoryRegion *address_space_mem,
MemoryRegion *address_space_io,
ram_addr_t ram_size,
+ ram_addr_t below_4g_mem_size,
ram_addr_t above_4g_mem_size,
MemoryRegion *pci_address_space,
MemoryRegion *ram_memory)
@@ -340,15 +341,7 @@ PCIBus *i440fx_init(PCII440FXState **pi440fx_state,
f->ram_memory = ram_memory;
i440fx = I440FX_PCI_HOST_BRIDGE(dev);
- /* Set PCI window size the way seabios has always done it. */
- /* Power of 2 so bios can cover it with a single MTRR */
- if (ram_size <= 0x80000000) {
- i440fx->pci_info.w32.begin = 0x80000000;
- } else if (ram_size <= 0xc0000000) {
- i440fx->pci_info.w32.begin = 0xc0000000;
- } else {
- i440fx->pci_info.w32.begin = 0xe0000000;
- }
+ i440fx->pci_info.w32.begin = below_4g_mem_size;
/* setup pci memory mapping */
pc_pci_as_mapping_init(OBJECT(f), f->system_memory,