/****************************************************************************** * config.h * * A Linux-style configuration list. */ #ifndef __X86_CONFIG_H__ #define __X86_CONFIG_H__ #define LONG_BYTEORDER 3 #define CONFIG_PAGING_LEVELS 4 #define BYTES_PER_LONG (1 << LONG_BYTEORDER) #define BITS_PER_LONG (BYTES_PER_LONG << 3) #define BITS_PER_BYTE 8 #define POINTER_ALIGN BYTES_PER_LONG #define BITS_PER_LLONG 64 #define BITS_PER_XEN_ULONG BITS_PER_LONG #define CONFIG_X86_PM_TIMER 1 #define CONFIG_HPET_TIMER 1 #define CONFIG_X86_MCE_THERMAL 1 #define CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS 1 #define CONFIG_DISCONTIGMEM 1 #define CONFIG_NUMA_EMU 1 #define CONFIG_DOMAIN_PAGE 1 #define CONFIG_PAGEALLOC_MAX_ORDER (2 * PAGETABLE_ORDER) #define CONFIG_DOMU_MAX_ORDER PAGETABLE_ORDER #define CONFIG_HWDOM_MAX_ORDER 12 /* Intel P4 currently has largest cache line (L2 line size is 128 bytes). */ #define CONFIG_X86_L1_CACHE_SHIFT 7 #define CONFIG_ACPI_SLEEP 1 #define CONFIG_ACPI_NUMA 1 #define CONFIG_ACPI_SRAT 1 #define CONFIG_ACPI_CSTATE 1 #define CONFIG_WATCHDOG 1 #define CONFIG_MULTIBOOT 1 #define HZ 100 #define OPT_CONSOLE_STR "vga" /* Linkage for x86 */ #ifdef __ASSEMBLY__ #define ALIGN .align 16,0x90 #define ENTRY(name) \ .globl name; \ ALIGN; \ name: #define GLOBAL(name) \ .globl name; \ name: #endif #define NR_hypercalls 64 #ifndef NDEBUG #define MEMORY_GUARD #endif #define STACK_ORDER 3 #define STACK_SIZE (PAGE_SIZE << STACK_ORDER) #define TRAMPOLINE_STACK_SPACE PAGE_SIZE #define TRAMPOLINE_SPACE (KB(64) - TRAMPOLINE_STACK_SPACE) #define WAKEUP_STACK_MIN 3072 #define MBI_SPACE_MIN (2 * PAGE_SIZE) /* Primary stack is restricted to 8kB by guard pages. */ #define PRIMARY_STACK_SIZE 8192 /* Total size of syscall and emulation stubs. */ #define STUB_BUF_SHIFT (L1_CACHE_SHIFT > 7 ? L1_CACHE_SHIFT : 7) #define STUB_BUF_SIZE (1 << STUB_BUF_SHIFT) /* Return value for zero-size _xmalloc(), distinguished from NULL. */ #define ZERO_BLOCK_PTR ((void *)0xBAD0BAD0BAD0BAD0UL) /* Override include/xen/list.h to make these non-canonical addresses. */ #define LIST_POISON1 ((void *)0x0100100100100100UL) #define LIST_POISON2 ((void *)0x0200200200200200UL) #ifndef __ASSEMBLY__ extern unsigned long trampoline_phys; #define bootsym_phys(sym) \ (((unsigned long)&(sym)-(unsigned long)&trampoline_start)+trampoline_phys) #define bootsym(sym) \ (*RELOC_HIDE((typeof(&(sym)))__va(__pa(&(sym))), \ trampoline_phys-__pa(trampoline_start))) extern char trampoline_start[], trampoline_end[]; extern char trampoline_realmode_entry[]; extern unsigned int trampoline_xen_phys_start; extern unsigned char trampoline_cpu_started; extern char wakeup_start[]; extern unsigned int video_mode, video_flags; extern unsigned short boot_edid_caps; extern unsigned char boot_edid_info[128]; #endif #include #define PML4_ENTRY_BITS 39 #define PML4_ENTRY_BYTES (_AC(1,UL) << PML4_ENTRY_BITS) #define PML4_ADDR(_slot) \ (((_AC(_slot, UL) >> 8) * _AC(0xffff000000000000,UL)) | \ (_AC(_slot, UL) << PML4_ENTRY_BITS)) /* * Memory layout: * 0x0000000000000000 - 0x00007fffffffffff [128TB, 2^47 bytes, PML4:0-255] * Guest-defined use (see below for compatibility mode guests). * 0x0000800000000000 - 0xffff7fffffffffff [16EB] * Inaccessible: current arch only supports 48-bit sign-extended VAs. * 0xffff800000000000 - 0xffff803fffffffff [256GB, 2^38 bytes, PML4:256] * Read-only machine-to-phys translation table (GUEST ACCESSIBLE). * 0xffff804000000000 - 0xffff807fffffffff [256GB, 2^38 bytes, PML4:256] * Reserved for future shared info with the guest OS (GUEST ACCESSIBLE). * 0xffff808000000000 - 0xffff80ffffffffff [512GB, 2^39 bytes, PML4:257] * ioremap for PCI mmconfig space * 0xffff810000000000 - 0xffff817fffffffff [512GB, 2^39 bytes, PML4:258] * Guest linear page table. * 0xffff818000000000 - 0xffff81ffffffffff [512GB, 2^39 bytes, PML4:259] * Shadow linear page table. * 0xffff820000000000 - 0xffff827fffffffff [512GB, 2^39 bytes, PML4:260] * Per-domain mappings (e.g., GDT, LDT). * 0xffff828000000000 - 0xffff82bfffffffff [256GB, 2^38 bytes, PML4:261] * Machine-to-phys translation table. * 0xffff82c000000000 - 0xffff82cfffffffff [64GB, 2^36 bytes, PML4:261] * vmap()/ioremap()/fixmap area. * 0xffff82d000000000 - 0xffff82d03fffffff [1GB, 2^30 bytes, PML4:261] * Compatibility machine-to-phys translation table. * 0xffff82d040000000 - 0xffff82d07fffffff [1GB, 2^30 bytes, PML4:261] * High read-only compatibility machine-to-phys translation table. * 0xffff82d080000000 - 0xffff82d0bfffffff [1GB, 2^30 bytes, PML4:261] * Xen text, static data, bss. #ifndef CONFIG_BIGMEM * 0xffff82d0c0000000 - 0xffff82dfffffffff [61GB, PML4:261] * Reserved for future use. * 0xffff82e000000000 - 0xffff82ffffffffff [128GB, 2^37 bytes, PML4:261] * Page-frame information array. * 0xffff830000000000 - 0xffff87ffffffffff [5TB, 5*2^40 bytes, PML4:262-271] * 1:1 direct mapping of all physical memory. #else * 0xffff82d0c0000000 - 0xffff82ffffffffff [189GB, PML4:261] * Reserved for future use. * 0xffff830000000000 - 0xffff847fffffffff [1.5TB, 3*2^39 bytes, PML4:262-264] * Page-frame information array. * 0xffff848000000000 - 0xffff87ffffffffff [3.5TB, 7*2^39 bytes, PML4:265-271] * 1:1 direct mapping of all physical memory. #endif * 0xffff880000000000 - 0xffffffffffffffff [120TB, PML4:272-511] * PV: Guest-defined use. * 0xffff880000000000 - 0xffffff7fffffffff [119.5TB, PML4:272-510] * HVM/idle: continuation of 1:1 mapping * 0xffffff8000000000 - 0xffffffffffffffff [512GB, 2^39 bytes PML4:511] * HVM/idle: unused * * Compatibility guest area layout: * 0x0000000000000000 - 0x00000000f57fffff [3928MB, PML4:0] * Guest-defined use. * 0x00000000f5800000 - 0x00000000ffffffff [168MB, PML4:0] * Read-only machine-to-phys translation table (GUEST ACCESSIBLE). * 0x0000000100000000 - 0x00007fffffffffff [128TB-4GB, PML4:0-255] * Unused / Reserved for future use. */ #define ROOT_PAGETABLE_FIRST_XEN_SLOT 256 #define ROOT_PAGETABLE_LAST_XEN_SLOT 271 #define ROOT_PAGETABLE_XEN_SLOTS \ (L4_PAGETABLE_ENTRIES - ROOT_PAGETABLE_FIRST_XEN_SLOT - 1) #define ROOT_PAGETABLE_PV_XEN_SLOTS \ (ROOT_PAGETABLE_LAST_XEN_SLOT - ROOT_PAGETABLE_FIRST_XEN_SLOT + 1) /* Hypervisor reserves PML4 slots 256 to 271 inclusive. */ #define HYPERVISOR_VIRT_START (PML4_ADDR(256)) #define HYPERVISOR_VIRT_END (HYPERVISOR_VIRT_START + PML4_ENTRY_BYTES*16) /* Slot 256: read-only guest-accessible machine-to-phys translation table. */ #define RO_MPT_VIRT_START (PML4_ADDR(256)) #define MPT_VIRT_SIZE (PML4_ENTRY_BYTES / 2) #define RO_MPT_VIRT_END (RO_MPT_VIRT_START + MPT_VIRT_SIZE) /* Slot 257: ioremap for PCI mmconfig space for 2048 segments (512GB) * - full 16-bit segment support needs 44 bits * - since PML4 slot has 39 bits, we limit segments to 2048 (11-bits) */ #define PCI_MCFG_VIRT_START (PML4_ADDR(257)) #define PCI_MCFG_VIRT_END (PCI_MCFG_VIRT_START + PML4_ENTRY_BYTES) /* Slot 258: linear page table (guest table). */ #define LINEAR_PT_VIRT_START (PML4_ADDR(258)) #define LINEAR_PT_VIRT_END (LINEAR_PT_VIRT_START + PML4_ENTRY_BYTES) /* Slot 259: linear page table (shadow table). */ #define SH_LINEAR_PT_VIRT_START (PML4_ADDR(259)) #define SH_LINEAR_PT_VIRT_END (SH_LINEAR_PT_VIRT_START + PML4_ENTRY_BYTES) /* Slot 260: per-domain mappings (including map cache). */ #define PERDOMAIN_VIRT_START (PML4_ADDR(260)) #define PERDOMAIN_SLOT_MBYTES (PML4_ENTRY_BYTES >> (20 + PAGETABLE_ORDER)) #define PERDOMAIN_SLOTS 3 #define PERDOMAIN_VIRT_SLOT(s) (PERDOMAIN_VIRT_START + (s) * \ (PERDOMAIN_SLOT_MBYTES << 20)) /* Slot 261: machine-to-phys conversion table (256GB). */ #define RDWR_MPT_VIRT_START (PML4_ADDR(261)) #define RDWR_MPT_VIRT_END (RDWR_MPT_VIRT_START + MPT_VIRT_SIZE) /* Slot 261: vmap()/ioremap()/fixmap area (64GB). */ #define VMAP_VIRT_START RDWR_MPT_VIRT_END #define VMAP_VIRT_END (VMAP_VIRT_START + GB(64)) /* Slot 261: compatibility machine-to-phys conversion table (1GB). */ #define RDWR_COMPAT_MPT_VIRT_START VMAP_VIRT_END #define RDWR_COMPAT_MPT_VIRT_END (RDWR_COMPAT_MPT_VIRT_START + GB(1)) /* Slot 261: high read-only compat machine-to-phys conversion table (1GB). */ #define HIRO_COMPAT_MPT_VIRT_START RDWR_COMPAT_MPT_VIRT_END #define HIRO_COMPAT_MPT_VIRT_END (HIRO_COMPAT_MPT_VIRT_START + GB(1)) /* Slot 261: xen text, static data and bss (1GB). */ #define XEN_VIRT_START (HIRO_COMPAT_MPT_VIRT_END) #define XEN_VIRT_END (XEN_VIRT_START + GB(1)) #ifndef CONFIG_BIGMEM /* Slot 261: page-frame information array (128GB). */ #define FRAMETABLE_SIZE GB(128) #else /* Slot 262-264: page-frame information array (1.5TB). */ #define FRAMETABLE_SIZE GB(1536) #endif #define FRAMETABLE_VIRT_END DIRECTMAP_VIRT_START #define FRAMETABLE_NR (FRAMETABLE_SIZE / sizeof(*frame_table)) #define FRAMETABLE_VIRT_START (FRAMETABLE_VIRT_END - FRAMETABLE_SIZE) #ifndef CONFIG_BIGMEM /* Slot 262-271/510: A direct 1:1 mapping of all of physical memory. */ #define DIRECTMAP_VIRT_START (PML4_ADDR(262)) #define DIRECTMAP_SIZE (PML4_ENTRY_BYTES * (511 - 262)) #else /* Slot 265-271/510: A direct 1:1 mapping of all of physical memory. */ #define DIRECTMAP_VIRT_START (PML4_ADDR(265)) #define DIRECTMAP_SIZE (PML4_ENTRY_BYTES * (511 - 265)) #endif #define DIRECTMAP_VIRT_END (DIRECTMAP_VIRT_START + DIRECTMAP_SIZE) #ifndef __ASSEMBLY__ /* This is not a fixed value, just a lower limit. */ #define __HYPERVISOR_COMPAT_VIRT_START 0xF5800000 #define HYPERVISOR_COMPAT_VIRT_START(d) ((d)->arch.hv_compat_vstart) #define MACH2PHYS_COMPAT_VIRT_START HYPERVISOR_COMPAT_VIRT_START #define MACH2PHYS_COMPAT_VIRT_END 0xFFE00000 #define MACH2PHYS_COMPAT_NR_ENTRIES(d) \ ((MACH2PHYS_COMPAT_VIRT_END-MACH2PHYS_COMPAT_VIRT_START(d))>>2) #define COMPAT_L2_PAGETABLE_FIRST_XEN_SLOT(d) \ l2_table_offset(HYPERVISOR_COMPAT_VIRT_START(d)) #define COMPAT_L2_PAGETABLE_LAST_XEN_SLOT l2_table_offset(~0U) #define COMPAT_L2_PAGETABLE_XEN_SLOTS(d) \ (COMPAT_L2_PAGETABLE_LAST_XEN_SLOT - COMPAT_L2_PAGETABLE_FIRST_XEN_SLOT(d) + 1) #define COMPAT_LEGACY_MAX_VCPUS XEN_LEGACY_MAX_VCPUS #define COMPAT_HAVE_PV_GUEST_ENTRY XEN_HAVE_PV_GUEST_ENTRY #define COMPAT_HAVE_PV_UPCALL_MASK XEN_HAVE_PV_UPCALL_MASK #endif #define __HYPERVISOR_CS64 0xe008 #define __HYPERVISOR_CS32 0xe038 #define __HYPERVISOR_CS __HYPERVISOR_CS64 #define __HYPERVISOR_DS64 0x0000 #define __HYPERVISOR_DS32 0xe010 #define __HYPERVISOR_DS __HYPERVISOR_DS64 #define SYMBOLS_ORIGIN XEN_VIRT_START /* For generic assembly code: use macros to define operation/operand sizes. */ #define __OS "q" /* Operation Suffix */ #define __OP "r" /* Operand Prefix */ #ifndef __ASSEMBLY__ extern unsigned long xen_phys_start; #endif /* GDT/LDT shadow mapping area. The first per-domain-mapping sub-area. */ #define GDT_LDT_VCPU_SHIFT 5 #define GDT_LDT_VCPU_VA_SHIFT (GDT_LDT_VCPU_SHIFT + PAGE_SHIFT) #define GDT_LDT_MBYTES PERDOMAIN_SLOT_MBYTES #define MAX_VIRT_CPUS (GDT_LDT_MBYTES << (20-GDT_LDT_VCPU_VA_SHIFT)) #define GDT_LDT_VIRT_START PERDOMAIN_VIRT_SLOT(0) #define GDT_LDT_VIRT_END (GDT_LDT_VIRT_START + (GDT_LDT_MBYTES << 20)) /* The address of a particular VCPU's GDT or LDT. */ #define GDT_VIRT_START(v) \ (PERDOMAIN_VIRT_START + ((v)->vcpu_id << GDT_LDT_VCPU_VA_SHIFT)) #define LDT_VIRT_START(v) \ (GDT_VIRT_START(v) + (64*1024)) /* map_domain_page() map cache. The second per-domain-mapping sub-area. */ #define MAPCACHE_VCPU_ENTRIES (CONFIG_PAGING_LEVELS * CONFIG_PAGING_LEVELS) #define MAPCACHE_ENTRIES (MAX_VIRT_CPUS * MAPCACHE_VCPU_ENTRIES) #define MAPCACHE_VIRT_START PERDOMAIN_VIRT_SLOT(1) #define MAPCACHE_VIRT_END (MAPCACHE_VIRT_START + \ MAPCACHE_ENTRIES * PAGE_SIZE) /* Argument translation area. The third per-domain-mapping sub-area. */ #define ARG_XLAT_VIRT_START PERDOMAIN_VIRT_SLOT(2) /* Allow for at least one guard page (COMPAT_ARG_XLAT_SIZE being 2 pages): */ #define ARG_XLAT_VA_SHIFT (2 + PAGE_SHIFT) #define ARG_XLAT_START(v) \ (ARG_XLAT_VIRT_START + ((v)->vcpu_id << ARG_XLAT_VA_SHIFT)) #define NATIVE_VM_ASSIST_VALID ((1UL << VMASST_TYPE_4gb_segments) | \ (1UL << VMASST_TYPE_4gb_segments_notify) | \ (1UL << VMASST_TYPE_writable_pagetables) | \ (1UL << VMASST_TYPE_pae_extended_cr3) | \ (1UL << VMASST_TYPE_architectural_iopl) | \ (1UL << VMASST_TYPE_runstate_update_flag)| \ (1UL << VMASST_TYPE_m2p_strict)) #define VM_ASSIST_VALID NATIVE_VM_ASSIST_VALID #define COMPAT_VM_ASSIST_VALID (NATIVE_VM_ASSIST_VALID & \ ((1UL << COMPAT_BITS_PER_LONG) - 1)) #define ELFSIZE 64 #define ARCH_CRASH_SAVE_VMCOREINFO #endif /* __X86_CONFIG_H__ */