Signed-off-by: Arbel Moshe <arbel.moshe@xxxxxxxxxx>
Reviewed-by: Liran Alon <liran.alon@xxxxxxxxxx>
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@xxxxxxxxxx>
---
lib/x86/desc.h | 25 +++++++++++++++++++++++++
1 file changed, 25 insertions(+)
diff --git a/lib/x86/desc.h b/lib/x86/desc.h
index 3bf8fbe..181b59e 100644
--- a/lib/x86/desc.h
+++ b/lib/x86/desc.h
@@ -167,6 +167,31 @@ typedef struct {
u8 base_high;
} gdt_entry_t;
+struct segment_desc64 {
+ uint16_t limit1;
+ uint16_t base1;
+ uint8_t base2;
+ union {
+ uint16_t type_limit_flags; /* Type and limit flags */
+ struct {
+ uint16_t type:4;
+ uint16_t s:1;
+ uint16_t dpl:2;
+ uint16_t p:1;
+ uint16_t limit:4;
+ uint16_t avl:1;
+ uint16_t l:1;
+ uint16_t db:1;
+ uint16_t g:1;
+ } __attribute__((__packed__));
+ } __attribute__((__packed__));
+ uint8_t base3;
+ uint32_t base4;
+ uint32_t zero;
+} __attribute__((__packed__));
+
+#define DESC_BUSY ((uint64_t) 1 << 41)
+
extern idt_entry_t boot_idt[256];
#ifndef __x86_64__
--
2.14.1
