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Differential D19365 Diff 54556 head/sys/i386/i386/pmap.c

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head/sys/i386/i386/pmap.c

Show First 20 Lines • Show All 558 Lines • ▼ Show 20 Lines#ifdef PMAP_PAE_COMP
ncr4 |= CR4_PAE; ncr4 |= CR4_PAE;
#endif #endif
if (ncr4 != 0) if (ncr4 != 0)
load_cr4(rcr4() | ncr4); load_cr4(rcr4() | ncr4);
/* Now enable paging */ /* Now enable paging */
#ifdef PMAP_PAE_COMP #ifdef PMAP_PAE_COMP
cr3 = (u_int)IdlePDPT; cr3 = (u_int)IdlePDPT;
if ((cpu_feature & CPUID_PAT) == 0)
wbinvd();
#else #else
cr3 = (u_int)IdlePTD; cr3 = (u_int)IdlePTD;
#endif #endif
tramp_idleptd = cr3; tramp_idleptd = cr3;
load_cr3(cr3); load_cr3(cr3);
load_cr0(rcr0() | CR0_PG); load_cr0(rcr0() | CR0_PG);
/* /*
▲ Show 20 Lines • Show All 1,460 Lines • ▼ Show 20 Lines m = vm_page_alloc(NULL, 0, VM_ALLOC_NORMAL | VM_ALLOC_NOOBJ |
VM_ALLOC_WIRED | VM_ALLOC_ZERO | VM_ALLOC_WAITOK); VM_ALLOC_WIRED | VM_ALLOC_ZERO | VM_ALLOC_WAITOK);
pmap->pm_ptdpg[i] = m; pmap->pm_ptdpg[i] = m;
#ifdef PMAP_PAE_COMP #ifdef PMAP_PAE_COMP
pmap->pm_pdpt[i] = VM_PAGE_TO_PHYS(m) | PG_V; pmap->pm_pdpt[i] = VM_PAGE_TO_PHYS(m) | PG_V;
#endif #endif
} }
pmap_qenter((vm_offset_t)pmap->pm_pdir, pmap->pm_ptdpg, NPGPTD); pmap_qenter((vm_offset_t)pmap->pm_pdir, pmap->pm_ptdpg, NPGPTD);
#ifdef PMAP_PAE_COMP
if ((cpu_feature & CPUID_PAT) == 0) {
pmap_invalidate_cache_range(
trunc_page((vm_offset_t)pmap->pm_pdpt),
round_page((vm_offset_t)pmap->pm_pdpt +
NPGPTD * sizeof(pdpt_entry_t)));
}
#endif
for (i = 0; i < NPGPTD; i++) for (i = 0; i < NPGPTD; i++)
if ((pmap->pm_ptdpg[i]->flags & PG_ZERO) == 0) if ((pmap->pm_ptdpg[i]->flags & PG_ZERO) == 0)
pagezero(pmap->pm_pdir + (i * NPDEPG)); pagezero(pmap->pm_pdir + (i * NPDEPG));
/* Install the trampoline mapping. */ /* Install the trampoline mapping. */
pmap->pm_pdir[TRPTDI] = PTD[TRPTDI]; pmap->pm_pdir[TRPTDI] = PTD[TRPTDI];
▲ Show 20 Lines • Show All 4,150 Lines • Show Last 20 Lines