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| author | Samuel Thibault <samuel.thibault@ens-lyon.org> | 2009-11-22 19:50:25 +0100 |
|---|---|---|
| committer | Samuel Thibault <samuel.thibault@ens-lyon.org> | 2009-11-22 19:50:25 +0100 |
| commit | 3f0ec95261c6723ae4ee930ce6299a7562f93906 (patch) | |
| tree | 9f9f4c2d422caaeb084468585e383913b269d229 /i386 | |
| parent | 567b9088f3d2ce24a5ab283b9a6828595a914895 (diff) | |
Do not assume that VM_MIN_KERNEL_ADDRESS is 0
* i386/i386/gdt.c (gdt_init): Subtract VM_MIN_KERNEL_ADDRESS
from LINEAR_MIN_KERNEL_ADDRESS to avoid assuming the former
being 0.
Diffstat (limited to 'i386')
| -rw-r--r-- | i386/i386/gdt.c | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/i386/i386/gdt.c b/i386/i386/gdt.c index 8484073..845e7c6 100644 --- a/i386/i386/gdt.c +++ b/i386/i386/gdt.c @@ -43,12 +43,12 @@ gdt_init() { /* Initialize the kernel code and data segment descriptors. */ fill_gdt_descriptor(KERNEL_CS, - LINEAR_MIN_KERNEL_ADDRESS, - LINEAR_MAX_KERNEL_ADDRESS - LINEAR_MIN_KERNEL_ADDRESS - 1, + LINEAR_MIN_KERNEL_ADDRESS - VM_MIN_KERNEL_ADDRESS, + LINEAR_MAX_KERNEL_ADDRESS - (LINEAR_MIN_KERNEL_ADDRESS - VM_MIN_KERNEL_ADDRESS) - 1, ACC_PL_K|ACC_CODE_R, SZ_32); fill_gdt_descriptor(KERNEL_DS, - LINEAR_MIN_KERNEL_ADDRESS, - LINEAR_MAX_KERNEL_ADDRESS - LINEAR_MIN_KERNEL_ADDRESS - 1, + LINEAR_MIN_KERNEL_ADDRESS - VM_MIN_KERNEL_ADDRESS, + LINEAR_MAX_KERNEL_ADDRESS - (LINEAR_MIN_KERNEL_ADDRESS - VM_MIN_KERNEL_ADDRESS) - 1, ACC_PL_K|ACC_DATA_W, SZ_32); fill_gdt_descriptor(LINEAR_DS, 0, |