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author | attilio <attilio@FreeBSD.org> | 2011-05-07 23:34:14 +0000 |
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committer | attilio <attilio@FreeBSD.org> | 2011-05-07 23:34:14 +0000 |
commit | cae315a3755c81a35be835045fd9d13ec32d5664 (patch) | |
tree | 66a13d0b14e24d271dd849b6ddd009dcaef39b21 /sys/ia64 | |
parent | a0b51ba62fa86f5faf7bbd81e0b91ba497fec05a (diff) | |
parent | e50df263d1f327a3de6248b7f2747e4ca342a99b (diff) | |
download | FreeBSD-src-cae315a3755c81a35be835045fd9d13ec32d5664.zip FreeBSD-src-cae315a3755c81a35be835045fd9d13ec32d5664.tar.gz |
MFC
Diffstat (limited to 'sys/ia64')
-rw-r--r-- | sys/ia64/ia64/pmap.c | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/sys/ia64/ia64/pmap.c b/sys/ia64/ia64/pmap.c index a160642..5f10ad6 100644 --- a/sys/ia64/ia64/pmap.c +++ b/sys/ia64/ia64/pmap.c @@ -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); } |