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Incorporated some code from NewOS to set up a double fault handler.

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git-svn-id: file:///srv/svn/repos/haiku/trunk/current@10444 a95241bf-73f2-0310-859d-f6bbb57e9c96
This commit is contained in:
Axel Dörfler 2004-12-14 01:46:46 +00:00
parent 09eaf756d0
commit c2c20b7848
2 changed files with 7 additions and 1 deletions
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4
headers/private/kernel/arch/x86/arch_cpu.h
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@ -99,10 +99,14 @@ void i386_frstor(void *fpu_state);
void i386_fxrstor(void *fpu_state);
void i386_fsave_swap(void *old_fpu_state, void *new_fpu_state);
void i386_fxsave_swap(void *old_fpu_state, void *new_fpu_state);
void x86_set_task_gate(int32 n, int32 segment);
#define read_ebp(value) \
__asm__("movl %%ebp,%0" : "=r" (value))
#define read_cr3(value) \
__asm__("movl %%cr3,%0" : "=r" (value))
#define read_dr3(value) \
__asm__("movl %%dr3,%0" : "=r" (value))

4
headers/private/kernel/arch/x86/descriptors.h
View File

@ -17,7 +17,8 @@
// this file can also be included from assembler as well
// (and is in arch_interrupts.S)
#define TSS_BASE_SEGMENT 5
#define DOUBLE_FAULT_TSS_SEGMENT 5
#define TSS_BASE_SEGMENT 6
#define TLS_BASE_SEGMENT (TSS_BASE_SEGMENT + smp_get_num_cpus())
@ -56,6 +57,7 @@ enum descriptor_types {
DT_DATA_EXPANSION_DOWN = 0x4,
DT_TSS = 9,
/* non busy, 32 bit */
// descriptor types
DT_SYSTEM_SEGMENT = 0,