LoongArch: Add LBT extensions support

Open specialpointcentral opened this issue 3 years ago • 1 comments

Loongson Binary Translation (LBT) is used to accelerate binary translation, which contains 4 sketch registers (scr0 to scr3), x86/ARM eflags (eflags) and x87 fpu stack pointer (ftop).

This patch support kernel to save/restore these registers, handle the LBT exception and maintain sigcontext.

Signed-off-by: Qi Hu [email protected]

Jul 29 '22 08:07 specialpointcentral