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Move the DTrace return IDT vector back up from 0x20 to 0x92. The 0x20

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vector is currently dedicated to servicing IRQ 0 from the 8259A's, so
it shouldn't be overloaded for DTrace.

Tested by:	rstone
MFC after:	1 week
This commit is contained in:
John Baldwin 2012-03-28 16:32:17 +00:00
parent fa18b0b2fa
commit 5dba6ec3b3
1 changed files with 1 additions and 1 deletions

2
sys/x86/include/segments.h

@ -215,8 +215,8 @@ union descriptor {
#define IDT_MC 18 /* #MC: Machine Check */
#define IDT_XF 19 /* #XF: SIMD Floating-Point Exception */
#define IDT_IO_INTS NRSVIDT /* Base of IDT entries for I/O interrupts. */
#define IDT_DTRACE_RET 0x20 /* DTrace pid provider Interrupt Vector */
#define IDT_SYSCALL 0x80 /* System Call Interrupt Vector */
#define IDT_DTRACE_RET 0x92 /* DTrace pid provider Interrupt Vector */
#if defined(__i386__) || defined(__ia64__)
/*