Joe Damato wrote:
Add static initializer for LDT/GDT/TSS descriptors.
Signed-off-by: Joe Damato <ice799@xxxxxxxxx>
---
include/asm-x86/desc_defs.h | 14 ++++++++++++++
1 files changed, 14 insertions(+), 0 deletions(-)
diff --git a/include/asm-x86/desc_defs.h b/include/asm-x86/desc_defs.h
index a1c6516..5119051 100644
--- a/include/asm-x86/desc_defs.h
+++ b/include/asm-x86/desc_defs.h
@@ -91,6 +91,20 @@ typedef struct desc_struct tss_desc;
, .dpl = (hi >> 13) & 3 \
, .p = (hi >> 15) & 1 \
, .base1 = (hi >> 16) & 0xffff }
+#define __DESC_INITIALIZER(lo,hi) \
+ { .limit0 = lo & 0xffff \
+ , .base0 = (lo >> 16) & 0xffff \
+ , .base1 = hi & 0xff \
+ , .type = (hi >> 8) & 0xf \
+ , .s = (hi >> 12) & 1 \
+ , .dpl = (hi >> 13) & 3 \
+ , .p = (hi >> 15) & 1 \
+ , .limit = (hi >> 16) & 0xf \
+ , .avl = (hi >> 20) & 1 \
+ , .l = (hi >> 21) & 1 \
+ , .d = (hi >> 22) & 1 \
+ , .g = (hi >> 23) & 1 \
+ ,.base2 = (hi >> 24) & 0xf }
Reasonable as a transition, I guess, but it would be better to just make
the initializers pass in proper values. But I think it would be better
to implement this with a union rather than repacking the packed values.
J
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