4876778749
At the start of pc_memory_init() we usually pass a range of 0..UINT64_MAX as pci_memory, when really its 2G (i440fx) or 32G (q35). To get the real user value, we need to get pci-host passed property for default pci_hole64_size. Thus to get that, create the qdev prior to memory init to better make estimations on max used/phys addr. This is in preparation to determine that host-phys-bits are enough and also for pci-hole64-size to be considered to relocate ram-above-4g to be at 1T (on AMD platforms). Signed-off-by: Joao Martins <joao.m.martins@oracle.com> Reviewed-by: Igor Mammedov <imammedo@redhat.com> Message-Id: <20220719170014.27028-3-joao.m.martins@oracle.com> Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
50 lines
1.3 KiB
C
50 lines
1.3 KiB
C
/*
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* QEMU i440FX North Bridge Emulation
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*
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* Copyright (c) 2006 Fabrice Bellard
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*
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* This work is licensed under the terms of the GNU GPL, version 2 or later.
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* See the COPYING file in the top-level directory.
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*
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*/
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#ifndef HW_PCI_I440FX_H
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#define HW_PCI_I440FX_H
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#include "hw/pci/pci_bus.h"
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#include "hw/pci-host/pam.h"
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#include "qom/object.h"
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#define TYPE_I440FX_PCI_HOST_BRIDGE "i440FX-pcihost"
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#define TYPE_I440FX_PCI_DEVICE "i440FX"
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OBJECT_DECLARE_SIMPLE_TYPE(PCII440FXState, I440FX_PCI_DEVICE)
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struct PCII440FXState {
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/*< private >*/
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PCIDevice parent_obj;
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/*< public >*/
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MemoryRegion *system_memory;
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MemoryRegion *pci_address_space;
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MemoryRegion *ram_memory;
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PAMMemoryRegion pam_regions[PAM_REGIONS_COUNT];
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MemoryRegion smram_region;
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MemoryRegion smram, low_smram;
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};
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#define TYPE_IGD_PASSTHROUGH_I440FX_PCI_DEVICE "igd-passthrough-i440FX"
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PCIBus *i440fx_init(const char *pci_type,
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DeviceState *dev,
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MemoryRegion *address_space_mem,
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MemoryRegion *address_space_io,
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ram_addr_t ram_size,
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ram_addr_t below_4g_mem_size,
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ram_addr_t above_4g_mem_size,
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MemoryRegion *pci_memory,
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MemoryRegion *ram_memory);
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#endif
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