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arch_mmu_allocate() translated the protection flags incorrectly

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(B_WRITE_AREA to read-only).


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@15697 a95241bf-73f2-0310-859d-f6bbb57e9c96
This commit is contained in:
Ingo Weinhold
2005-12-28 19:47:50 +00:00
parent 529bf1c6d7
commit 22bc93e31c
1 changed files with 7 additions and 2 deletions
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src/system/boot/platform/openfirmware/arch/ppc/mmu.cpp
+7 -2
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@@ -443,10 +443,14 @@ arch_mmu_allocate(void *virtualAddress, size_t size, uint8 protection)
size = ROUNDUP(size, B_PAGE_SIZE); size = ROUNDUP(size, B_PAGE_SIZE);
// set protection to WIMGxPP: -I--xPP // set protection to WIMGxPP: -I--xPP
// PP: 00 - no access
// 01 - read only
// 10 - read/write
// 11 - read only
if (protection & B_WRITE_AREA) if (protection & B_WRITE_AREA)
protection = 0x23;
else
protection = 0x22; protection = 0x22;
else
protection = 0x21;
if (virtualAddress == NULL) { if (virtualAddress == NULL) {
// find free address large enough to hold "size" // find free address large enough to hold "size"
@@ -633,6 +637,7 @@ static int
callback(struct of_arguments *args) callback(struct of_arguments *args)
{ {
const char *name = args->name; const char *name = args->name;
printf("CALLBACK: %s\n", name);
if (!strcmp(name, "map")) if (!strcmp(name, "map"))
return map_callback(args); return map_callback(args);