version 1.95.10.3.2.1, 2017/08/08 11:59:16 |
version 1.101, 2012/06/27 00:37:08 |
Line 169 __KERNEL_RCSID(0, "$NetBSD$"); |
|
Line 169 __KERNEL_RCSID(0, "$NetBSD$"); |
|
*/ |
*/ |
.section __xen_guest |
.section __xen_guest |
.ascii "GUEST_OS=netbsd,GUEST_VER=3.0,XEN_VER=xen-3.0" |
.ascii "GUEST_OS=netbsd,GUEST_VER=3.0,XEN_VER=xen-3.0" |
#if defined(DOM0OPS) || !defined(XEN_COMPAT_030001) |
|
.ascii ",VIRT_BASE=0xc0000000" /* KERNBASE */ |
.ascii ",VIRT_BASE=0xc0000000" /* KERNBASE */ |
.ascii ",ELF_PADDR_OFFSET=0xc0000000" /* KERNBASE */ |
.ascii ",ELF_PADDR_OFFSET=0xc0000000" /* KERNBASE */ |
#else |
|
.ascii ",VIRT_BASE=0xc0100000" /* KERNTEXTOFF */ |
|
.ascii ",ELF_PADDR_OFFSET=0xc0100000" /* KERNTEXTOFF */ |
|
#endif |
|
.ascii ",VIRT_ENTRY=0xc0100000" /* KERNTEXTOFF */ |
.ascii ",VIRT_ENTRY=0xc0100000" /* KERNTEXTOFF */ |
#if !defined(XEN_COMPAT_030001) |
|
.ascii ",HYPERCALL_PAGE=0x00000101" |
.ascii ",HYPERCALL_PAGE=0x00000101" |
/* (???+HYPERCALL_PAGE_OFFSET)/PAGE_SIZE) */ |
/* (???+HYPERCALL_PAGE_OFFSET)/PAGE_SIZE) */ |
#endif |
|
#ifdef PAE |
#ifdef PAE |
.ascii ",PAE=yes[extended-cr3]" |
.ascii ",PAE=yes[extended-cr3]" |
#endif |
#endif |
Line 196 __KERNEL_RCSID(0, "$NetBSD$"); |
|
Line 189 __KERNEL_RCSID(0, "$NetBSD$"); |
|
*/ |
*/ |
.data |
.data |
|
|
.globl _C_LABEL(cpu) |
.globl _C_LABEL(cputype) |
.globl _C_LABEL(cpuid_level) |
.globl _C_LABEL(cpuid_level) |
.globl _C_LABEL(esym) |
.globl _C_LABEL(esym) |
.globl _C_LABEL(eblob) |
.globl _C_LABEL(eblob) |
Line 229 _C_LABEL(lapic_tpr): |
|
Line 222 _C_LABEL(lapic_tpr): |
|
.long 0 |
.long 0 |
#endif |
#endif |
|
|
_C_LABEL(cpu): .long 0 # are we 80486, Pentium, or.. |
_C_LABEL(cputype): .long 0 # are we 80486, Pentium, or.. |
_C_LABEL(cpuid_level): .long 0 |
_C_LABEL(cpuid_level): .long 0 |
_C_LABEL(atdevbase): .long 0 # location of start of iomem in virtual |
_C_LABEL(atdevbase): .long 0 # location of start of iomem in virtual |
_C_LABEL(lwp0uarea): .long 0 |
_C_LABEL(lwp0uarea): .long 0 |
Line 238 _C_LABEL(tablesize): .long 0 |
|
Line 231 _C_LABEL(tablesize): .long 0 |
|
|
|
.space 512 |
.space 512 |
tmpstk: |
tmpstk: |
|
#ifdef XEN |
|
.align PAGE_SIZE, 0x0 # Align on page boundary |
|
_C_LABEL(tmpgdt): |
|
.space PAGE_SIZE # Xen expects a page |
|
#endif /* XEN */ |
|
.globl tmpgdt |
#ifndef XEN |
#ifndef XEN |
#define _RELOC(x) ((x) - KERNBASE) |
#define _RELOC(x) ((x) - KERNBASE) |
#else |
#else |
|
|
* Don't try cpuid, as Nx586s reportedly don't support the |
* Don't try cpuid, as Nx586s reportedly don't support the |
* PSL_ID bit. |
* PSL_ID bit. |
*/ |
*/ |
movl $CPU_NX586,RELOC(cpu) |
movl $CPU_NX586,RELOC(cputype) |
jmp 2f |
jmp 2f |
|
|
is386: |
is386: |
movl $CPU_386,RELOC(cpu) |
movl $CPU_386,RELOC(cputype) |
jmp 2f |
jmp 2f |
|
|
try486: /* Try to toggle identification flag; does not exist on early 486s. */ |
try486: /* Try to toggle identification flag; does not exist on early 486s. */ |
Line 364 try486: /* Try to toggle identification |
|
Line 362 try486: /* Try to toggle identification |
|
|
|
testl %eax,%eax |
testl %eax,%eax |
jnz try586 |
jnz try586 |
is486: movl $CPU_486,RELOC(cpu) |
is486: movl $CPU_486,RELOC(cputype) |
/* |
/* |
* Check Cyrix CPU |
* Check Cyrix CPU |
* Cyrix CPUs do not change the undefined flags following |
* Cyrix CPUs do not change the undefined flags following |
Line 382 is486: movl $CPU_486,RELOC(cpu) |
|
Line 380 is486: movl $CPU_486,RELOC(cpu) |
|
popfl |
popfl |
jmp 2f |
jmp 2f |
trycyrix486: |
trycyrix486: |
movl $CPU_6x86,RELOC(cpu) # set CPU type |
movl $CPU_6x86,RELOC(cputype) # set CPU type |
/* |
/* |
* Check for Cyrix 486 CPU by seeing if the flags change during a |
* Check for Cyrix 486 CPU by seeing if the flags change during a |
* divide. This is documented in the Cx486SLC/e SMM Programmer's |
* divide. This is documented in the Cx486SLC/e SMM Programmer's |
|
|
xorl %ecx,%eax # are the flags different? |
xorl %ecx,%eax # are the flags different? |
testl $0x8d5,%eax # only check C|PF|AF|Z|N|V |
testl $0x8d5,%eax # only check C|PF|AF|Z|N|V |
jne 2f # yes; must be Cyrix 6x86 CPU |
jne 2f # yes; must be Cyrix 6x86 CPU |
movl $CPU_486DLC,RELOC(cpu) # set CPU type |
movl $CPU_486DLC,RELOC(cputype) # set CPU type |
|
|
#ifndef CYRIX_CACHE_WORKS |
#ifndef CYRIX_CACHE_WORKS |
/* Disable caching of the ISA hole only. */ |
/* Disable caching of the ISA hole only. */ |
Line 677 try586: /* Use the `cpuid' instruction. |
|
Line 675 try586: /* Use the `cpuid' instruction. |
|
*/ |
*/ |
movl %cr0,%eax # get control word |
movl %cr0,%eax # get control word |
# enable paging & NPX emulation |
# enable paging & NPX emulation |
orl $(CR0_PE|CR0_PG|CR0_NE|CR0_TS|CR0_EM|CR0_MP|CR0_AM),%eax |
orl $(CR0_PE|CR0_PG|CR0_NE|CR0_TS|CR0_EM|CR0_MP|CR0_WP|CR0_AM),%eax |
movl %eax,%cr0 # and page NOW! |
movl %eax,%cr0 # and page NOW! |
|
|
pushl $begin # jump to high mem |
pushl $begin # jump to high mem |
|
|
cpuid |
cpuid |
movl %eax,RELOC(cpuid_level) |
movl %eax,RELOC(cpuid_level) |
|
|
|
/* |
|
* Use a temp page. We'll re- add it to uvm(9) once we're |
|
* done using it. |
|
*/ |
|
movl $RELOC(tmpgdt), %eax |
|
pushl %eax # start of temporary gdt |
|
call _C_LABEL(initgdt) |
|
addl $4,%esp |
|
|
call xen_pmap_bootstrap |
call xen_pmap_bootstrap |
|
|
/* |
/* |
|
|
addl $PDE_SIZE,%esp # pop paddr_t |
addl $PDE_SIZE,%esp # pop paddr_t |
call _C_LABEL(main) |
call _C_LABEL(main) |
|
|
#if defined(XEN) && !defined(XEN_COMPAT_030001) |
#if defined(XEN) |
/* space for the hypercall call page */ |
/* space for the hypercall call page */ |
#define HYPERCALL_PAGE_OFFSET 0x1000 |
#define HYPERCALL_PAGE_OFFSET 0x1000 |
.org HYPERCALL_PAGE_OFFSET |
.org HYPERCALL_PAGE_OFFSET |
ENTRY(hypercall_page) |
ENTRY(hypercall_page) |
.skip 0x1000 |
.skip 0x1000 |
#endif /* defined(XEN) && !defined(XEN_COMPAT_030001) */ |
#endif /* defined(XEN) */ |
|
|
/* |
/* |
* void lgdt_finish(void); |
* void lgdt_finish(void); |
|
|
END(savectx) |
END(savectx) |
|
|
/* |
/* |
|
* osyscall() |
|
* |
|
* Old call gate entry for syscall |
|
*/ |
|
IDTVEC(osyscall) |
|
#ifndef XEN |
|
/* XXX we are in trouble! interrupts be off here. */ |
|
cli # must be first instruction |
|
#endif |
|
pushfl # set eflags in trap frame |
|
popl 8(%esp) |
|
orl $PSL_I,(%esp) # re-enable ints on return to user |
|
pushl $7 # size of instruction for restart |
|
jmp syscall1 |
|
IDTVEC_END(osyscall) |
|
|
|
/* |
* syscall() |
* syscall() |
* |
* |
* Trap gate entry for syscall |
* Trap gate entry for syscall |
*/ |
*/ |
IDTVEC(syscall) |
IDTVEC(syscall) |
pushl $2 # size of instruction for restart |
pushl $2 # size of instruction for restart |
|
syscall1: |
pushl $T_ASTFLT # trap # for doing ASTs |
pushl $T_ASTFLT # trap # for doing ASTs |
INTRENTRY |
INTRENTRY |
STI(%eax) |
STI(%eax) |