Author: jhb
Date: Wed Apr 11 20:19:29 2012
New Revision: 234146
URL: http://svn.freebsd.org/changeset/base/234146
Log:
MFC 232228,233613:
Move the DTrace return IDT vector back up from 0x20 to 0x92. The 0x20
vector is currently dedicated to servicing IRQ 0 from the 8259A's, so
it shouldn't be overloaded for DTrace.
Modified:
stable/8/sys/amd64/include/segments.h
stable/8/sys/i386/include/segments.h
Directory Properties:
stable/8/sys/ (props changed)
stable/8/sys/amd64/include/xen/ (props changed)
stable/8/sys/boot/ (props changed)
stable/8/sys/cddl/contrib/opensolaris/ (props changed)
stable/8/sys/contrib/dev/acpica/ (props changed)
stable/8/sys/contrib/pf/ (props changed)
stable/8/sys/dev/e1000/ (props changed)
stable/8/sys/i386/conf/XENHVM (props changed)
Modified: stable/8/sys/amd64/include/segments.h
==============================================================================
--- stable/8/sys/amd64/include/segments.h Wed Apr 11 20:19:07 2012
(r234145)
+++ stable/8/sys/amd64/include/segments.h Wed Apr 11 20:19:29 2012
(r234146)
@@ -214,7 +214,7 @@ struct region_descriptor {
#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_DTRACE_RET 0x20 /* DTrace pid provider Interrupt Vector
*/
+#define IDT_DTRACE_RET 0x92 /* DTrace pid provider Interrupt Vector
*/
/*
* Entries in the Global Descriptor Table (GDT)
Modified: stable/8/sys/i386/include/segments.h
==============================================================================
--- stable/8/sys/i386/include/segments.h Wed Apr 11 20:19:07 2012
(r234145)
+++ stable/8/sys/i386/include/segments.h Wed Apr 11 20:19:29 2012
(r234146)
@@ -207,7 +207,7 @@ struct region_descriptor {
#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_DTRACE_RET 0x20 /* DTrace pid provider Interrupt Vector
*/
+#define IDT_DTRACE_RET 0x92 /* DTrace pid provider Interrupt Vector
*/
/*
* Entries in the Global Descriptor Table (GDT)
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