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In pmap_kextract(), return the physical address for PBVM virtual

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addresses as well (incl. the PBVM page table).
This commit is contained in:
Marcel Moolenaar 2011-05-07 17:23:13 +00:00
parent 4ad5f8c23f
commit a63f3da5b2
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=221606
1 changed files with 22 additions and 0 deletions
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22
sys/ia64/ia64/pmap.c
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@ -65,6 +65,7 @@ __FBSDID("$FreeBSD$");
#include <vm/vm_pageout.h>
#include <vm/uma.h>
#include <machine/bootinfo.h>
#include <machine/md_var.h>
#include <machine/pal.h>
@ -1206,6 +1207,8 @@ vm_paddr_t
pmap_kextract(vm_offset_t va)
{
struct ia64_lpte *pte;
uint64_t *pbvm_pgtbl;
u_int idx;
KASSERT(va >= VM_MAXUSER_ADDRESS, ("Must be kernel VA"));
@ -1222,6 +1225,25 @@ pmap_kextract(vm_offset_t va)
return (pmap_present(pte) ? pmap_ppn(pte)|(va&PAGE_MASK) : 0);
}
/* PBVM page table. */
if (va >= IA64_PBVM_PGTBL + bootinfo->bi_pbvm_pgtblsz);
return (0);
if (va >= IA64_PBVM_PGTBL)
return (va - IA64_PBVM_PGTBL) + bootinfo->bi_pbvm_pgtbl;
/* PBVM. */
if (va >= IA64_PBVM_BASE) {
pbvm_pgtbl = (void *)IA64_PBVM_PGTBL;
idx = (va - IA64_PBVM_BASE) >> IA64_PBVM_PAGE_SHIFT;
if (idx >= (bootinfo->bi_pbvm_pgtblsz >> 3))
return (0);
if ((pbvm_pgtbl[idx] & PTE_PRESENT) == 0)
return (0);
return ((pbvm_pgtbl[idx] & PTE_PPN_MASK) +
(va & IA64_PBVM_PAGE_MASK));
}
printf("XXX: %s: va=%#lx\n", __func__, va);
return (0);
}