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10 Commits

Author SHA1 Message Date
Justin C. Miller
1726d10554 Unify syscall/interrupt handling of rsp 2018-05-21 22:57:43 -07:00
Justin C. Miller
2597e2002b Get super basic ring3 task switching working 
* It looks like UEFI enables SSE, so we need to tell clang -mno-sse for
  now to not use XMM* until we're ready to save them.
* SYSCALL is working from ring3 tasks, calling console printf!
 2018-05-21 09:07:53 -07:00
Justin C. Miller
24ccf65aba WIP ring3 2018-05-21 09:07:52 -07:00
Justin C. Miller
bfaab294e6 Set up initial task switching (ring0 only) 2018-05-21 09:07:52 -07:00
Justin C. Miller
abaa007c54 Set TSS and load it 2018-05-21 09:07:52 -07:00
Justin C. Miller
0fc369789e Change GDT code to enforce correct CS 2018-05-14 22:52:28 -07:00
Justin C. Miller
9efb97c2a7 Increase to 64 IRQs 2018-05-06 18:24:12 -07:00
Justin C. Miller
8a00b9c77d Spend a few more bytes on 'push' instruction to clear warnings 2018-05-05 11:26:13 -07:00
Justin C. Miller
3b560c063a Move kernel to higher half. 
Return to having the bootloader re-map the kernel into the higher
half before jumping into the kernel entrypoint, so we don't have
to juggle pointers inside the kernel.
 2018-04-19 01:37:34 -07:00
Justin C. Miller
2050b89334 Move src/modules/main -> src/kernel 2018-04-17 09:45:05 -07:00