diff options
| author | cinap_lenrek <cinap_lenrek@felloff.net> | 2014-06-01 03:13:58 +0200 |
|---|---|---|
| committer | cinap_lenrek <cinap_lenrek@felloff.net> | 2014-06-01 03:13:58 +0200 |
| commit | c9f91d50154015ef31b6e63131847742893ffc91 (patch) | |
| tree | 8a94dce9adbe9ca224c6112d9080296ef57ba7e6 /sys/src/9/pc64/mmu.c | |
| parent | 8061f30e559569943324a666ee2fcc74048785cd (diff) | |
pc64: allocate palloc.pages from upages
the palloc.pages array takes arround 5% of the upages which
gives us:
16GB = ~0.8GB
32GB = ~1.6GB
64GB = ~3.2GB
we only have 2GB of address space above KZERO so this will not
work for long.
instead, pageinit() was altered to accept a preallocated memory
in palloc.pages. and preallocpages() in pc64/main.c allocates the
in upages memory, mapping it in the VMAP area (which has 512GB).
the drawback is that we cannot poke at Page structures now from
/proc/n/mem as the VMAP area is not accessible from it.
Diffstat (limited to 'sys/src/9/pc64/mmu.c')
| -rw-r--r-- | sys/src/9/pc64/mmu.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/sys/src/9/pc64/mmu.c b/sys/src/9/pc64/mmu.c index c89dbf861..8081eb7d6 100644 --- a/sys/src/9/pc64/mmu.c +++ b/sys/src/9/pc64/mmu.c @@ -282,13 +282,13 @@ ptecount(uintptr va, int level) } void -pmap(uintptr *pml4, uintptr pa, uintptr va, int size) +pmap(uintptr *pml4, uintptr pa, uintptr va, vlong size) { uintptr *pte, *ptee, flags; int z, l; if((size <= 0) || va < VMAP) - panic("pmap: pa=%#p va=%#p size=%d", pa, va, size); + panic("pmap: pa=%#p va=%#p size=%lld", pa, va, size); flags = pa; pa = PPN(pa); flags -= pa; @@ -310,7 +310,7 @@ pmap(uintptr *pml4, uintptr pa, uintptr va, int size) size += z; continue; } - panic("pmap: pa=%#p va=%#p size=%d", pa, va, size); + panic("pmap: pa=%#p va=%#p size=%lld", pa, va, size); } ptee = pte + ptecount(va, l); while(size > 0 && pte < ptee){ |