*: use a generic UserRegs type everywhere I'm storing registers

mostly inspired by Plan 9's Ureg, probably obvious from the name

1 files changed, 8 insertions, 3 deletions

diff --git a/src/kernel/arch/amd64/sysenter.h b/src/kernel/arch/amd64/sysenter.h
index 03a9f45..65c46f8 100644
--- a/src/kernel/arch/amd64/sysenter.h
+++ b/src/kernel/arch/amd64/sysenter.h
@@ -1,9 +1,14 @@
 #pragma once
 #include <kernel/types.h>
 
-// sysenter.c
-extern CpuRegs _sysexit_regs;
+typedef struct SysexitRegs SysexitRegs;
+struct SysexitRegs {
+	UserRegs u;
+	char sse[512];
+};
+_Static_assert(sizeof(SysexitRegs) == 18 * 8 + 512);
+
+extern SysexitRegs _sysexit_regs;
 _Noreturn void sysenter_stage2(void);
 
-// sysenter.s
 _Noreturn void _sysexit_real(void);