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- Always use 256 IDT entries since it is now a runtime decison as to how

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many entries we use.
- Add a constant IDT_IO_INTS for the first IDT entry used for device
  interrupts.
This commit is contained in:
John Baldwin 2003-11-03 21:12:04 +00:00
parent e14243fac7
commit 5b02e68554
1 changed files with 2 additions and 5 deletions
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7
sys/i386/include/segments.h
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@ -173,11 +173,7 @@ struct region_descriptor {
* Size of IDT table * Size of IDT table
*/ */
#if defined(SMP) || defined(APIC_IO) #define NIDT 256 /* 32 reserved, 0x80 syscall, most are h/w */
#define NIDT 256 /* we use them all */
#else
#define NIDT 129 /* 32 reserved, 16 h/w, 0 s/w, linux's 0x80 */
#endif /* SMP || APIC_IO */
#define NRSVIDT 32 /* reserved entries for cpu exceptions */ #define NRSVIDT 32 /* reserved entries for cpu exceptions */
/* /*
@ -202,6 +198,7 @@ struct region_descriptor {
#define IDT_AC 17 /* #AC: Alignment Check */ #define IDT_AC 17 /* #AC: Alignment Check */
#define IDT_MC 18 /* #MC: Machine Check */ #define IDT_MC 18 /* #MC: Machine Check */
#define IDT_XF 19 /* #XF: SIMD Floating-Point Exception */ #define IDT_XF 19 /* #XF: SIMD Floating-Point Exception */
#define IDT_IO_INTS NRSVIDT /* Base of IDT entries for I/O interrupts. */
#define IDT_SYSCALL 0x80 /* System Call Interrupt Vector */ #define IDT_SYSCALL 0x80 /* System Call Interrupt Vector */
/* /*