refactor: striped more arch-related code from the kernel code base

[lunaix-os.git] / lunaix-os / arch / i386 / includes / sys / x86_isa.h

diff --git a/lunaix-os/arch/i386/includes/sys/x86_isa.h b/lunaix-os/arch/i386/includes/sys/x86_isa.h
new file mode 100644 (file)
index 0000000..0c53d9d
--- /dev/null
+++ b/lunaix-os/arch/i386/includes/sys/x86_isa.h
@@ -0,0 +1,25 @@
+#ifndef __LUNAIX_I386_ASM_H
+#define __LUNAIX_I386_ASM_H
+
+#define KCODE_SEG 0x08
+#define KDATA_SEG 0x10
+#define UCODE_SEG 0x1B
+#define UDATA_SEG 0x23
+#define TSS_SEG 0x28
+
+#define tss_esp0_off 4
+
+#ifndef __ASM__
+#include <lunaix/types.h>
+struct x86_tss
+{
+  u32_t link;
+  u32_t esp0;
+  u16_t ss0;
+  u8_t __padding[94];
+} __attribute__((packed));
+
+void tss_update_esp(u32_t esp0);
+#endif
+
+#endif /* __LUNAIX_I386_ASM_H */