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1.1 ! root 1: /* ! 2: * Copyright (C) 2006-2011 Free Software Foundation ! 3: * ! 4: * This program is free software ; you can redistribute it and/or modify ! 5: * it under the terms of the GNU General Public License as published by ! 6: * the Free Software Foundation ; either version 2 of the License, or ! 7: * (at your option) any later version. ! 8: * ! 9: * This program is distributed in the hope that it will be useful, ! 10: * but WITHOUT ANY WARRANTY ; without even the implied warranty of ! 11: * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the ! 12: * GNU General Public License for more details. ! 13: * ! 14: * You should have received a copy of the GNU General Public License ! 15: * along with the program ; if not, write to the Free Software ! 16: * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. ! 17: */ ! 18: ! 19: #include <xen/public/elfnote.h> ! 20: ! 21: .section __xen_guest ! 22: .ascii "GUEST_OS=GNU Mach" ! 23: .ascii ",GUEST_VERSION=1.3" ! 24: .ascii ",XEN_VER=xen-3.0" ! 25: .ascii ",VIRT_BASE=0xC0000000" ! 26: .ascii ",ELF_PADDR_OFFSET=0xC0000000" ! 27: .ascii ",HYPERCALL_PAGE=0x2" ! 28: #if PAE ! 29: .ascii ",PAE=yes[extended-cr3]" ! 30: #else ! 31: .ascii ",PAE=no" ! 32: #endif ! 33: .ascii ",LOADER=generic" ! 34: #ifdef MACH_PSEUDO_PHYS ! 35: .ascii ",FEATURES=pae_pgdir_above_4gb" ! 36: #else /* MACH_PSEUDO_PHYS */ ! 37: .ascii ",FEATURES=!auto_translated_physmap" ! 38: #endif ! 39: #ifndef MACH_PV_PAGETABLES ! 40: .ascii "|!writable_page_tables" ! 41: #endif /* MACH_PV_PAGETABLES */ ! 42: #ifndef MACH_PV_DESCRIPTORS ! 43: .ascii "|!writable_descriptor_tables" ! 44: #endif /* MACH_PV_DESCRIPTORS */ ! 45: #ifndef MACH_RING1 ! 46: .ascii "|!supervisor_mode_kernel" ! 47: #endif /* MACH_PV_DESCRIPTORS */ ! 48: .byte 0 ! 49: ! 50: /* Macro taken from linux/include/linux/elfnote.h */ ! 51: #define ELFNOTE(name, type, desctype, descdata) \ ! 52: .pushsection .note.name ; \ ! 53: .align 4 ; \ ! 54: .long 2f - 1f /* namesz */ ; \ ! 55: .long 4f - 3f /* descsz */ ; \ ! 56: .long type ; \ ! 57: 1:.asciz "name" ; \ ! 58: 2:.align 4 ; \ ! 59: 3:desctype descdata ; \ ! 60: 4:.align 4 ; \ ! 61: .popsection ; ! 62: ! 63: ELFNOTE(Xen, XEN_ELFNOTE_GUEST_OS, .asciz, "GNU Mach") ! 64: ELFNOTE(Xen, XEN_ELFNOTE_GUEST_VERSION, .asciz, "1.3") ! 65: ELFNOTE(Xen, XEN_ELFNOTE_XEN_VERSION, .asciz, "xen-3.0") ! 66: ELFNOTE(Xen, XEN_ELFNOTE_VIRT_BASE, .long, _START) ! 67: ELFNOTE(Xen, XEN_ELFNOTE_PADDR_OFFSET, .long, _START) ! 68: ELFNOTE(Xen, XEN_ELFNOTE_ENTRY, .long, start) ! 69: ELFNOTE(Xen, XEN_ELFNOTE_HYPERCALL_PAGE, .long, hypcalls) ! 70: #if PAE ! 71: ELFNOTE(Xen, XEN_ELFNOTE_PAE_MODE, .asciz, "yes[extended-cr3]") ! 72: #else ! 73: ELFNOTE(Xen, XEN_ELFNOTE_PAE_MODE, .asciz, "no") ! 74: #endif ! 75: ELFNOTE(Xen, XEN_ELFNOTE_LOADER, .asciz, "generic") ! 76: ELFNOTE(Xen, XEN_ELFNOTE_FEATURES, .asciz, "" ! 77: #ifdef MACH_PSEUDO_PHYS ! 78: "pae_pgdir_above_4gb" ! 79: #else /* MACH_PSEUDO_PHYS */ ! 80: "!auto_translated_physmap" ! 81: #endif ! 82: #ifndef MACH_PV_PAGETABLES ! 83: "|!writable_page_tables" ! 84: #endif /* MACH_PV_PAGETABLES */ ! 85: #ifndef MACH_PV_DESCRIPTORS ! 86: "|!writable_descriptor_tables" ! 87: #endif /* MACH_PV_DESCRIPTORS */ ! 88: #ifndef MACH_RING1 ! 89: "|!supervisor_mode_kernel" ! 90: #endif /* MACH_RING1 */ ! 91: ) ! 92: ! 93: #include <mach/machine/asm.h> ! 94: ! 95: #include <i386/i386/i386asm.h> ! 96: ! 97: .text ! 98: .globl gdt, ldt ! 99: .globl start, _start, gdt ! 100: start: ! 101: _start: ! 102: ! 103: /* Switch to our own interrupt stack. */ ! 104: movl $(_intstack+INTSTACK_SIZE),%eax ! 105: movl %eax,%esp ! 106: ! 107: /* Reset EFLAGS to a known state. */ ! 108: pushl $0 ! 109: popf ! 110: ! 111: /* Push the start_info pointer to be the second argument. */ ! 112: subl $KERNELBASE,%esi ! 113: pushl %esi ! 114: ! 115: /* Fix ifunc entries */ ! 116: movl $__rel_iplt_start,%esi ! 117: movl $__rel_iplt_end,%edi ! 118: iplt_cont: ! 119: cmpl %edi,%esi ! 120: jae iplt_done ! 121: movl (%esi),%ebx /* r_offset */ ! 122: movb 4(%esi),%al /* info */ ! 123: cmpb $42,%al /* IRELATIVE */ ! 124: jnz iplt_next ! 125: call *(%ebx) /* call ifunc */ ! 126: movl %eax,(%ebx) /* fixed address */ ! 127: iplt_next: ! 128: addl $8,%esi ! 129: jmp iplt_cont ! 130: iplt_done: ! 131: ! 132: /* Jump into C code. */ ! 133: call EXT(c_boot_entry) ! 134: ! 135: /* Those need to be aligned on page boundaries. */ ! 136: .global hyp_shared_info, hypcalls ! 137: ! 138: .org (start + 0x1000) ! 139: hyp_shared_info: ! 140: .org hyp_shared_info + 0x1000 ! 141: ! 142: /* Labels just for debuggers */ ! 143: #define hypcall(name, n) \ ! 144: .org hypcalls + n*32 ; \ ! 145: .globl __hyp_##name ; \ ! 146: __hyp_##name: ! 147: ! 148: hypcalls: ! 149: hypcall(set_trap_table, 0) ! 150: hypcall(mmu_update, 1) ! 151: hypcall(set_gdt, 2) ! 152: hypcall(stack_switch, 3) ! 153: hypcall(set_callbacks, 4) ! 154: hypcall(fpu_taskswitch, 5) ! 155: hypcall(sched_op_compat, 6) ! 156: hypcall(platform_op, 7) ! 157: hypcall(set_debugreg, 8) ! 158: hypcall(get_debugreg, 9) ! 159: hypcall(update_descriptor, 10) ! 160: hypcall(memory_op, 12) ! 161: hypcall(multicall, 13) ! 162: hypcall(update_va_mapping, 14) ! 163: hypcall(set_timer_op, 15) ! 164: hypcall(event_channel_op_compat, 16) ! 165: hypcall(xen_version, 17) ! 166: hypcall(console_io, 18) ! 167: hypcall(physdev_op_compat, 19) ! 168: hypcall(grant_table_op, 20) ! 169: hypcall(vm_assist, 21) ! 170: hypcall(update_va_mapping_otherdomain, 22) ! 171: hypcall(iret, 23) ! 172: hypcall(vcpu_op, 24) ! 173: hypcall(set_segment_base, 25) ! 174: hypcall(mmuext_op, 26) ! 175: hypcall(acm_op, 27) ! 176: hypcall(nmi_op, 28) ! 177: hypcall(sched_op, 29) ! 178: hypcall(callback_op, 30) ! 179: hypcall(xenoprof_op, 31) ! 180: hypcall(event_channel_op, 32) ! 181: hypcall(physdev_op, 33) ! 182: hypcall(hvm_op, 34) ! 183: hypcall(sysctl, 35) ! 184: hypcall(domctl, 36) ! 185: hypcall(kexec_op, 37) ! 186: ! 187: hypcall(arch_0, 48) ! 188: hypcall(arch_1, 49) ! 189: hypcall(arch_2, 50) ! 190: hypcall(arch_3, 51) ! 191: hypcall(arch_4, 52) ! 192: hypcall(arch_5, 53) ! 193: hypcall(arch_6, 54) ! 194: hypcall(arch_7, 55) ! 195: ! 196: .org hypcalls + 0x1000 ! 197: ! 198: gdt: ! 199: .org gdt + 0x1000 ! 200: ! 201: ldt: ! 202: .org ldt + 0x1000 ! 203: ! 204: stack: ! 205: .long _intstack+INTSTACK_SIZE,0xe021 ! 206: .comm _intstack,INTSTACK_SIZE ! 207:
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