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x86_64 syscall: remove unescessary mov from entry

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Matheus
2024-09-16 17:34:32 -03:00
parent 0a49ca75b5
commit 8a6b010a31
1 changed files with 1 additions and 2 deletions
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kernel-src/arch/x86-64/syscall.asm
+1 -2
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@@ -208,8 +208,7 @@ arch_syscall_entry:
; because it's still using the user stack ; because it's still using the user stack
mov cr2, rax mov cr2, rax
; rax can be used just fine now ; rax can be used just fine now
mov rax, [gs:0x8] ; cpu pointer mov rax, [gs:0] ; thread pointer
mov rax, [rax] ; thread pointer
mov rax, [rax] ; kernel stack top mov rax, [rax] ; kernel stack top
xchg rsp, rax ; switch stack pointers xchg rsp, rax ; switch stack pointers