struct TaskStateSegment64

Defined at line 270 of file ../../zircon/kernel/lib/arch/include/lib/arch/x86/descriptor.h

x86-64 Task State Segment.

In 64-bit mode, the system needs at least one TSS. It is used to store

stack pointers for various privilege levels, stack pointers for various

interrupt handlers, and I/O port permissions.

[amd/vol2]: Figure 12-8. Long Mode TSS Format

[intel/vol3]: Figure 7-11. 64-Bit TSS Format

Public Members

uint32_t reserved0

uint64_t rsp0

uint64_t rsp1

uint64_t rsp2

uint32_t reserved1

uint32_t reserved2

uint64_t[7] ist

uint32_t reserved3

uint32_t reserved4

uint16_t reserved5

uint16_t io_port_bitmap_base

static const size_t kNumInterruptStackTables

static const uint32_t kIoMaxBitmapBits