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https://github.com/xen-project/xen.git
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Andrew Cooper
754a29cacf
The IO port, MSR, IO-APIC and LAPIC accessors compile typically to single or pairs of instructions, which is less overhead than even the stack manipulation to call the helpers. Move the implementations from util.c to being static inlines in util.h In addition, turn ioapic_base_address into a constant as it is never modified from 0xfec00000 (substantially shrinks the IO-APIC logic), and make use of the "A" constraint for WRMSR/RDMSR like we already do for RDTSC. Bloat-o-meter reports a net: add/remove: 0/13 grow/shrink: 0/18 up/down: 0/-790 (-790) No functional change. Signed-off-by: Andrew Cooper <andrew.cooper3@citrix.com> Reviewed-by: Jan Beulich <jbeulich@suse.com>
100 lines
2.7 KiB
C
100 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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#include <stdbool.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, void *addr,
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uint32_t size, void *extra_addr);
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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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extern uint8_t ioapic_version;
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#define IOAPIC_ID 0x01
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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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#define ACPI_TIS_HDR_ADDRESS 0xFED40F00UL
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extern uint32_t pci_mem_start;
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extern const uint32_t pci_mem_end;
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extern uint64_t pci_hi_mem_start, pci_hi_mem_end;
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extern bool acpi_enabled;
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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 ACPI_MEMORY_DYNAMIC_START 0xFC001000
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#define RESERVED_MEMORY_DYNAMIC_START 0xFC100000
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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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