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sys/amd64/amd64/locore.S
| Show All 30 Lines | |||||
| #include <machine/pmap.h> | #include <machine/pmap.h> | ||||
| #include <machine/specialreg.h> | #include <machine/specialreg.h> | ||||
| #include "assym.inc" | #include "assym.inc" | ||||
| /* | /* | ||||
| * Compiled KERNBASE location | * Compiled KERNBASE location | ||||
| */ | */ | ||||
| .globl kernbase,loc_PTmap,loc_PDmap,loc_PDPmap,loc_PML4map,loc_PML4pml4e,dmapbase,dmapend | .globl kernbase, loc_PTmap, loc_PDmap, loc_PDPmap, dmapbase, dmapend | ||||
| .set kernbase,KERNBASE | .set kernbase,KERNBASE | ||||
| .set loc_PTmap,addr_PTmap | |||||
| .set loc_PDmap,addr_PDmap | |||||
| .set loc_PDPmap,addr_PDPmap | |||||
| .set loc_PML4map,addr_PML4map | |||||
| .set loc_PML4pml4e,addr_PML4pml4e | |||||
| .set dmapbase,DMAP_MIN_ADDRESS | .set dmapbase,DMAP_MIN_ADDRESS | ||||
| .set dmapend,DMAP_MAX_ADDRESS | .set dmapend,DMAP_MAX_ADDRESS | ||||
| .text | .text | ||||
| /********************************************************************** | /********************************************************************** | ||||
| * | * | ||||
| * This is where the loader trampoline start us, set the ball rolling... | * This is where the loader trampoline start us, set the ball rolling... | ||||
| * | * | ||||
| Show All 22 Lines | NON_GPROF_ENTRY(btext) | ||||
| movq $bootstack,%rsp | movq $bootstack,%rsp | ||||
| xorl %ebp, %ebp | xorl %ebp, %ebp | ||||
| call hammer_time /* set up cpu for unix operation */ | call hammer_time /* set up cpu for unix operation */ | ||||
| movq %rax,%rsp /* set up kstack for mi_startup() */ | movq %rax,%rsp /* set up kstack for mi_startup() */ | ||||
| call mi_startup /* autoconfiguration, mountroot etc */ | call mi_startup /* autoconfiguration, mountroot etc */ | ||||
| 0: hlt | 0: hlt | ||||
| jmp 0b | jmp 0b | ||||
| /* la57_trampoline(%rdi pml5) */ | |||||
| NON_GPROF_ENTRY(la57_trampoline) | |||||
| movq %rsp,%r11 | |||||
| movq %rbx,%r10 | |||||
| leaq la57_trampoline_end(%rip),%rsp | |||||
| movq %cr0,%rdx | |||||
| lgdtq la57_trampoline_gdt_desc(%rip) | |||||
| pushq $(2<<3) | |||||
| leaq l1(%rip),%rax | |||||
| leaq l2(%rip),%rbx | |||||
| pushq %rax | |||||
| lretq | |||||
| .code32 | |||||
| l1: movl $(3<<3),%eax | |||||
| movl %eax,%ss | |||||
| movl %edx,%eax | |||||
| andl $~CR0_PG,%eax | |||||
| movl %eax,%cr0 | |||||
| movl %cr4,%eax | |||||
| orl $CR4_LA57,%eax | |||||
| movl %eax,%cr4 | |||||
| movl %edi,%cr3 | |||||
| movl %edx,%cr0 | |||||
| pushl $(1<<3) | |||||
| pushl %ebx | |||||
| lretl | |||||
| .code64 | |||||
| l2: movq %r11,%rsp | |||||
| movq %r10,%rbx | |||||
| retq | |||||
| .p2align 4,0 | |||||
| NON_GPROF_ENTRY(la57_trampoline_gdt_desc) | |||||
| .word la57_trampoline_end - la57_trampoline_gdt | |||||
| .long 0 /* filled by pmap_bootstrap_la57 */ | |||||
| .p2align 4,0 | |||||
| NON_GPROF_ENTRY(la57_trampoline_gdt) | |||||
| .long 0x00000000 /* null desc */ | |||||
| .long 0x00000000 | |||||
| .long 0x00000000 /* 64bit code */ | |||||
| .long 0x00209800 | |||||
| .long 0x0000ffff /* 32bit code */ | |||||
| .long 0x00cf9b00 | |||||
| .long 0x0000ffff /* universal data */ | |||||
| .long 0x00cf9300 | |||||
| .dcb.l 16,0 | |||||
| NON_GPROF_ENTRY(la57_trampoline_end) | |||||
| .bss | .bss | ||||
| ALIGN_DATA /* just to be sure */ | ALIGN_DATA /* just to be sure */ | ||||
| .globl bootstack | .globl bootstack | ||||
| .space 0x1000 /* space for bootstack - temporary stack */ | .space 0x1000 /* space for bootstack - temporary stack */ | ||||
| bootstack: | bootstack: | ||||