version 1.149, 2017/07/29 12:34:34 |
version 1.156.2.1, 2018/06/25 07:25:42 |
Line 135 __KERNEL_RCSID(0, "$NetBSD$"); |
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Line 135 __KERNEL_RCSID(0, "$NetBSD$"); |
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#include "opt_modular.h" |
#include "opt_modular.h" |
#include "opt_multiboot.h" |
#include "opt_multiboot.h" |
#include "opt_realmem.h" |
#include "opt_realmem.h" |
#include "opt_vm86.h" |
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#include "opt_xen.h" |
#include "opt_xen.h" |
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#include "assym.h" |
#include "assym.h" |
Line 342 _C_LABEL(Multiboot_Header): |
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Line 341 _C_LABEL(Multiboot_Header): |
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jne 1f |
jne 1f |
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/* |
/* |
* Indeed, a multiboot-compliant boot loader executed us. We copy |
* Indeed, a multiboot-compliant boot loader executed us. We switch |
* the received Multiboot information structure into kernel's data |
* to the temporary stack, and copy the received Multiboot information |
* space to process it later -- after we are relocated. It will |
* structure into kernel's data space to process it later -- after we |
* be safer to run complex C code than doing it at this point. |
* are relocated. It will be safer to run complex C code than doing it |
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* at this point. |
*/ |
*/ |
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movl $_RELOC(tmpstk),%esp |
pushl %ebx /* Address of Multiboot information */ |
pushl %ebx /* Address of Multiboot information */ |
call _C_LABEL(multiboot_pre_reloc) |
call _C_LABEL(multiboot_pre_reloc) |
addl $4,%esp |
addl $4,%esp |
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pushl $0 /* init386() expects a 64 bits paddr_t with PAE */ |
pushl $0 /* init386() expects a 64 bits paddr_t with PAE */ |
#endif |
#endif |
pushl %eax |
pushl %eax |
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call _C_LABEL(init_bootspace) |
call _C_LABEL(init386) |
call _C_LABEL(init386) |
addl $PDE_SIZE,%esp /* pop paddr_t */ |
addl $PDE_SIZE,%esp /* pop paddr_t */ |
addl $NGDT*8,%esp /* pop temporary gdt */ |
addl $NGDT*8,%esp /* pop temporary gdt */ |
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pushl $0 /* init386() expects a 64 bits paddr_t with PAE */ |
pushl $0 /* init386() expects a 64 bits paddr_t with PAE */ |
#endif |
#endif |
pushl %esi |
pushl %esi |
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call _C_LABEL(init_bootspace) |
call _C_LABEL(init386) |
call _C_LABEL(init386) |
addl $PDE_SIZE,%esp /* pop paddr_t */ |
addl $PDE_SIZE,%esp /* pop paddr_t */ |
call _C_LABEL(main) |
call _C_LABEL(main) |
Line 1086 ENTRY(cpu_switchto) |
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Line 1089 ENTRY(cpu_switchto) |
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movl %ebp,PCB_EBP(%eax) |
movl %ebp,PCB_EBP(%eax) |
skip_save: |
skip_save: |
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#ifndef XEN |
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pushl %edx |
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movb _C_LABEL(x86_fpu_eager),%dl |
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testb %dl,%dl |
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jz .Lno_eagerfpu |
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pushl %edi |
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pushl %esi |
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call _C_LABEL(fpu_eagerswitch) |
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addl $8,%esp |
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.Lno_eagerfpu: |
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popl %edx |
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#endif |
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/* Switch to newlwp's stack. */ |
/* Switch to newlwp's stack. */ |
movl L_PCB(%edi),%ebx |
movl L_PCB(%edi),%ebx |
movl PCB_EBP(%ebx),%ebp |
movl PCB_EBP(%ebx),%ebp |
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addl $4,%esp |
addl $4,%esp |
#else |
#else |
movl PCB_ESP0(%ebx),%eax |
movl PCB_ESP0(%ebx),%eax |
movl %eax,CPUVAR(ESP0) |
movl CPUVAR(TSS),%ecx |
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movl %eax,TSS_ESP0(%ecx) |
#endif |
#endif |
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/* Don't bother with the rest if switching to a system process. */ |
/* Don't bother with the rest if switching to a system process. */ |
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movl PCB_IOMAP(%ebx),%eax |
movl PCB_IOMAP(%ebx),%eax |
orl %eax,%eax |
orl %eax,%eax |
jnz .Lcopy_iobitmap |
jnz .Lcopy_iobitmap |
movl $(IOMAP_INVALOFF << 16),CPUVAR(IOBASE) |
movl CPUVAR(TSS),%eax |
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movl $(IOMAP_INVALOFF << 16),TSS_IOBASE(%eax) |
.Liobitmap_done: |
.Liobitmap_done: |
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/* Is this process using RAS (restartable atomic sequences)? */ |
/* Is this process using RAS (restartable atomic sequences)? */ |
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pushl %esi |
pushl %esi |
pushl %edi |
pushl %edi |
movl %eax,%esi /* pcb_iomap */ |
movl %eax,%esi /* pcb_iomap */ |
movl CPUVAR(SELF),%edi |
movl CPUVAR(TSS),%edi |
leal CPU_INFO_IOMAP(%edi),%edi |
leal TSS_IOMAP(%edi),%edi |
rep |
rep |
movsl |
movsl |
popl %edi |
popl %edi |
popl %esi |
popl %esi |
movl $((CPU_INFO_IOMAP - CPU_INFO_TSS) << 16),CPUVAR(IOBASE) |
movl CPUVAR(TSS),%eax |
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movl $(IOMAP_VALIDOFF << 16),TSS_IOBASE(%eax) |
jmp .Liobitmap_done |
jmp .Liobitmap_done |
END(cpu_switchto) |
END(cpu_switchto) |
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Line 1366 ENTRY(sse2_idlezero_page) |
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Line 1385 ENTRY(sse2_idlezero_page) |
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popl %ebp |
popl %ebp |
ret |
ret |
END(sse2_idlezero_page) |
END(sse2_idlezero_page) |
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ENTRY(intrfastexit) |
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movw TF_GS(%esp),%gs |
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movw TF_FS(%esp),%fs |
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movw TF_ES(%esp),%es |
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movw TF_DS(%esp),%ds |
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movl TF_EDI(%esp),%edi |
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movl TF_ESI(%esp),%esi |
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movl TF_EBP(%esp),%ebp |
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movl TF_EBX(%esp),%ebx |
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movl TF_EDX(%esp),%edx |
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movl TF_ECX(%esp),%ecx |
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movl TF_EAX(%esp),%eax |
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addl $(TF_PUSHSIZE+8),%esp |
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iret |
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END(intrfastexit) |
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