Imbus/xv6-riscv-kernel
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add DPL_USER constant

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rsc 2007-08-08 09:02:42 +00:00
parent f83f7ce2f6
commit b6dc6187f7
4 changed files with 8 additions and 6 deletions
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2
mmu.h
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@ -55,6 +55,8 @@ struct segdesc {
type, 1, dpl, 1, (uint) (lim) >> 16, 0, 0, 1, 0, \
(uint) (base) >> 24 }
#define DPL_USER 0x3 // User DPL
// Application segment type bits
#define STA_X 0x8 // Executable segment
#define STA_E 0x4 // Expand down (non-executable segments)