i2p/haiku-beta6
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

kernel/x86_64: rework of IDT handling code

Browse Source 
Similarly to previous patch regarding GDT this is mostly a rewrite of
IDT handling code from C to C++. Thanks to constexpr IDT is now entirely
generated at compile-time.
This commit is contained in:
Pawel Dziepak
2014-05-06 14:59:54 +02:00
parent 2b6d4bc657
commit 9db5b975f9
2 changed files with 116 additions and 71 deletions
Download Patch File Download Diff File Expand all files Collapse all files
headers/private/kernel/arch/x86/64/descriptors.h
-33
View File
@@ -39,21 +39,6 @@ struct segment_descriptor {
uint32 base1 : 8;
} _PACKED;
// Structure of an interrupt descriptor.
struct interrupt_descriptor {
uint32 base0 : 16;
uint32 sel : 16;
uint32 ist : 3;
uint32 unused1 : 5;
uint32 type : 4;
uint32 unused2 : 1;
uint32 dpl : 2;
uint32 present : 1;
uint32 base1 : 16;
uint32 base2 : 32;
uint32 reserved : 32;
} _PACKED;
struct tss {
uint32 _reserved1;
uint64 sp0;
@@ -103,24 +88,6 @@ set_segment_descriptor(segment_descriptor* desc, uint8 type, uint8 dpl)
}
static inline void
set_interrupt_descriptor(interrupt_descriptor* desc, uint64 addr, uint32 type,
uint16 seg, uint32 dpl, uint32 ist)
{
desc->base0 = addr & 0xffff;
desc->base1 = (addr >> 16) & 0xffff;
desc->base2 = (addr >> 32) & 0xffffffff;
desc->sel = seg;
desc->ist = ist;
desc->type = type;
desc->dpl = dpl;
desc->present = 1;
desc->unused1 = 0;
desc->unused2 = 0;
desc->reserved = 0;
}
#endif /* _ASSEMBLER */
#endif /* _KERNEL_ARCH_X86_64_DESCRIPTORS_H */