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Don Slutz
2d927fc41b
If you add enough PCI devices then all mmio may not fit below 4G which may not be the layout the user wanted. This allows you to increase the below 4G address space that PCI devices can use and therefore in more cases not have any mmio that is above 4G. There are real PCI cards that do not support mmio over 4G, so if you want to emulate them precisely, you may also need to increase the space below 4G for them. There are drivers for these cards that also do not work if they have their mmio space mapped above 4G. This allows growing the MMIO hole to the size needed. This may help with using pci passthru and HVM. In the tools this is named mmio_hole_memkb. Signed-off-by: Don Slutz <dslutz@verizon.com> Acked-by: George Dunlap <george.dunlap@eu.citrix.com> Acked-by: Ian Campbell <ian.campbell@citrix.com> [ ijc -- fixed build error in xl_cmdimpl.c with s/%PRIu64/%ld/. Reworded title ]
95 lines
2.7 KiB
C
95 lines
2.7 KiB
C
#ifndef __HVMLOADER_CONFIG_H__
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#define __HVMLOADER_CONFIG_H__
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#include <stdint.h>
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enum virtual_vga { VGA_none, VGA_std, VGA_cirrus, VGA_pt };
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extern enum virtual_vga virtual_vga;
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extern unsigned long igd_opregion_pgbase;
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#define IGD_OPREGION_PAGES 3
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struct bios_config {
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const char *name;
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/* BIOS ROM image bits */
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void *image;
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unsigned int image_size;
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/* Physical address to load at */
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unsigned int bios_address;
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/* ROMS */
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void (*load_roms)(void);
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void (*bios_load)(const struct bios_config *config);
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void (*bios_info_setup)(void);
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void (*bios_info_finish)(void);
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void (*e820_setup)(void);
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void (*acpi_build_tables)(void);
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void (*create_mp_tables)(void);
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void (*create_smbios_tables)(void);
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void (*create_pir_tables)(void);
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};
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extern struct bios_config rombios_config;
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extern struct bios_config seabios_config;
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extern struct bios_config ovmf_config;
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#define PAGE_SHIFT 12
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#define PAGE_SIZE (1ul << PAGE_SHIFT)
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#define IOAPIC_BASE_ADDRESS 0xfec00000
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#define IOAPIC_ID 0x01
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#define IOAPIC_VERSION 0x11
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#define LAPIC_BASE_ADDRESS 0xfee00000
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#define LAPIC_ID(vcpu_id) ((vcpu_id) * 2)
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#define PCI_ISA_DEVFN 0x08 /* dev 1, fn 0 */
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#define PCI_ISA_IRQ_MASK 0x0c20U /* ISA IRQs 5,10,11 are PCI connected */
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/* MMIO hole: Hardcoded defaults, which can be dynamically expanded. */
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#define PCI_MEM_END 0xfc000000
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extern unsigned long pci_mem_start, pci_mem_end;
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extern uint64_t pci_hi_mem_start, pci_hi_mem_end;
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/* Memory map. */
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#define SCRATCH_PHYSICAL_ADDRESS 0x00010000
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#define HYPERCALL_PHYSICAL_ADDRESS 0x00080000
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#define VGABIOS_PHYSICAL_ADDRESS 0x000C0000
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#define HVMLOADER_PHYSICAL_ADDRESS 0x00100000
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/* Special BIOS mappings, etc. are allocated from here upwards... */
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#define RESERVED_MEMBASE 0xFC000000
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/* NB. ACPI_INFO_PHYSICAL_ADDRESS *MUST* match definition in acpi/dsdt.asl! */
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#define ACPI_INFO_PHYSICAL_ADDRESS 0xFC000000
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#define RESERVED_MEMORY_DYNAMIC_START 0xFC001000
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#define RESERVED_MEMORY_DYNAMIC_END 0xFE000000
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/*
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* GUEST_RESERVED: Physical address space reserved for guest use.
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* This is not dynamically advertised to guests, so this range must *never*
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* be used for any purpose by us, in future. It must always be marked as
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* reserved in the memory map (e.g., E820_RESERVED) so that mechanisms such
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* as PCI BAR remapping do not allocate from this region.
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*/
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#define GUEST_RESERVED_START 0xFE700000
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#define GUEST_RESERVED_END 0xFE800000
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extern unsigned long scratch_start;
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#endif /* __HVMLOADER_CONFIG_H__ */
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/*
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* Local variables:
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* mode: C
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* c-file-style: "BSD"
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* c-basic-offset: 4
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* tab-width: 4
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* indent-tabs-mode: nil
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* End:
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*/
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