51 lines
649 B
C++
51 lines
649 B
C++
#ifndef _TSS_H_
|
|
#define _TSS_H_
|
|
|
|
#include <base/stdint.h>
|
|
|
|
namespace Genode
|
|
{
|
|
/**
|
|
* Task State Segment (TSS)
|
|
*
|
|
* See Intel SDM Vol. 3A, section 7.7
|
|
*/
|
|
class Tss;
|
|
}
|
|
|
|
class Genode::Tss
|
|
{
|
|
private:
|
|
|
|
enum {
|
|
TSS_SELECTOR = 0x28,
|
|
};
|
|
|
|
uint32_t : 32;
|
|
addr_t rsp0;
|
|
addr_t rsp1;
|
|
addr_t rsp2;
|
|
uint64_t : 64;
|
|
addr_t ist[7];
|
|
uint64_t : 64;
|
|
uint16_t : 16;
|
|
uint16_t iomap_base;
|
|
|
|
public:
|
|
|
|
/**
|
|
* Setup TSS.
|
|
*
|
|
* \param virt_base virtual base address of mode transition pages
|
|
*/
|
|
void setup(addr_t const virt_base);
|
|
|
|
/**
|
|
* Load TSS into TR.
|
|
*/
|
|
void load();
|
|
|
|
}__attribute__((packed));
|
|
|
|
#endif /* _TSS_H_ */
|