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First part of the vm86 work by Jan Klötzke:

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* Allow userland teams to create areas below 1 MB when requested specifically.
* Note, this is a temporary solution - see the comments in the code.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@25358 a95241bf-73f2-0310-859d-f6bbb57e9c96
This commit is contained in:
Axel Dörfler
2008-05-07 21:21:43 +00:00
parent 45c2e6b8f3
commit 7cbf8fdd5a
4 changed files with 39 additions and 28 deletions
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headers/private/kernel/arch/ppc/arch_kernel.h
+4 -3
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@@ -20,9 +20,10 @@
** region wont be placed there. The 64kb region assures a user space thread cannot pass
** a buffer into the kernel as part of a syscall that would cross into kernel space.
*/
#define USER_BASE 0x100000
#define USER_SIZE (0x80000000 - (0x10000 + 0x100000))
#define USER_TOP (USER_BASE + USER_SIZE)
#define USER_BASE 0x100000
#define USER_BASE_ANY USER_BASE
#define USER_SIZE (0x80000000 - (0x10000 + 0x100000))
#define USER_TOP (USER_BASE + USER_SIZE)
#define USER_STACK_REGION 0x70000000
#define USER_STACK_REGION_SIZE (USER_BASE + (USER_SIZE - USER_STACK_REGION))