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Knock a page off VM_MAX_KERNEL_ADDRESS

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There are places where checks are made against VM_MAX_KERNEL_ADDRESS, or
virtual_end (set to VM_MAX_KERNEL_ADDRESS).  With 32-bit checks, an address will
always be less than or equal to 0xffffffff.  Drop a page, so those checks can
terminate loops safely.
This commit is contained in:
Justin Hibbits 2017-01-08 21:12:46 +00:00
parent 26e6e3e65d
commit 009dedabb3
1 changed files with 1 additions and 1 deletions
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2
sys/powerpc/include/vmparam.h
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@ -111,7 +111,7 @@
#define KERNBASE 0xc0000000 /* start of kernel virtual */
#define VM_MIN_KERNEL_ADDRESS KERNBASE
#define VM_MAX_KERNEL_ADDRESS 0xffffffff
#define VM_MAX_KERNEL_ADDRESS 0xffffefff
#define VM_MAX_SAFE_KERNEL_ADDRESS VM_MAX_KERNEL_ADDRESS
#endif /* AIM/E500 */