x86common.h File Reference

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Defines
#define	HEX(y)   0x##y
#define	PML4_ADDRESS   HEX(1000) /* One page PML4 page table */
#define	PDP_ADDRESS   HEX(2000) /* One page PDP page table */
#define	PD_ADDRESS   HEX(3000) /* One page PD page table */
#define	STACK16ADDR   HEX(6F00) /* The 16-bit stack top will be at 0000:6F00 */
#define	BSS_START   HEX(6F00)
#define	FREELDR_BASE   HEX(F800)
#define	FREELDR_PE_BASE   HEX(10000)
#define	FILESYSBUFFER   HEX(80000) /* Buffer to store file system data (e.g. cluster buffer for FAT) */
#define	DISKREADBUFFER   HEX(90000) /* Buffer to store data read in from the disk via the BIOS */
#define	STACK32ADDR   HEX(98000) /* The 32-bit stack top will be at 9000:8000, or 0xA8000 */
#define	STACK64ADDR   HEX(98000) /* The 64-bit stack top will be at 98000 */
#define	BIOSCALLBUFFER   HEX(98000) /* Buffer to store temporary data for any Int386() call */
#define	DISKREADBUFFER_SIZE   512
#define	BIOSCALLBUFSEGMENT   (BIOSCALLBUFFER/16) /* Buffer to store temporary data for any Int386() call */
#define	BIOSCALLBUFOFFSET   HEX(0000) /* Buffer to store temporary data for any Int386() call */
#define	BIOSCALLBUFSIZE   PAGE_SIZE /* max is sizeof(VESA_SVGA_INFO) = 512 */
#define	BSS_RealModeEntry   (BSS_START + 0)
#define	BSS_CallbackReturn   (BSS_START + 4)
#define	BSS_RegisterSet   (BSS_START + 8) /* size = 40 */
#define	BSS_IntVector   (BSS_START + 52)
#define	BSS_PxeEntryPoint   (BSS_START + 56)
#define	BSS_PxeBufferSegment   (BSS_START + 60)
#define	BSS_PxeBufferOffset   (BSS_START + 64)
#define	BSS_PxeFunction   (BSS_START + 68)
#define	BSS_PxeResult   (BSS_START + 72)
#define	BSS_PnpBiosEntryPoint   (BSS_START + 76)
#define	BSS_PnpBiosDataSegment   (BSS_START + 80)
#define	BSS_PnpBiosBufferSegment   (BSS_START + 84)
#define	BSS_PnpBiosBufferOffset   (BSS_START + 88)
#define	BSS_PnpNodeSize   (BSS_START + 92)
#define	BSS_PnpNodeCount   (BSS_START + 96)
#define	BSS_PnpNodeNumber   (BSS_START + 100)
#define	BSS_PnpResult   (BSS_START + 104)
#define	BSS_BootDrive   (BSS_START + 108)
#define	BSS_BootPartition   (BSS_START + 109)
#define	FNID_Int386   0
#define	FNID_SoftReboot   1
#define	FNID_ChainLoadBiosBootSectorCode   2
#define	FNID_PxeCallApi   3
#define	FNID_PnpBiosGetDeviceNodeCount   4
#define	FNID_PnpBiosGetDeviceNode   5
#define	FNID_BootLinuxKernel   6
#define	CR0_PE_SET   HEX(00000001) /* OR this value with CR0 to enable pmode */
#define	CR0_PE_CLR   HEX(FFFFFFFE) /* AND this value with CR0 to disable pmode */
#define	NULL_DESC   HEX(00) /* NULL descriptor */
#define	PMODE_CS   HEX(08) /* PMode code selector, base 0 limit 4g */
#define	PMODE_DS   HEX(10) /* PMode data selector, base 0 limit 4g */
#define	RMODE_CS   HEX(18) /* RMode code selector, base 0 limit 64k */
#define	RMODE_DS   HEX(20) /* RMode data selector, base 0 limit 64k */
#define	LMODE_CS   HEX(10)
#define	LMODE_DS   HEX(18)
#define	CMODE_CS   HEX(30)
#define	EXTERN(x)   .global x; x: