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authorAkinobu Mita <akinobu.mita@gmail.com>2009-07-19 00:12:20 +0900
committerIngo Molnar <mingo@elte.hu>2009-08-08 17:44:11 +0200
commit1e5de18278e6862f4198412b5059a03770fa816a (patch)
tree23ca6dfed95bd5f53d69d4b94ada59358765ad79 /arch/x86/include/asm/desc_defs.h
parent57594742a2b545f8f114cda34f15650be8ae976d (diff)
downloadop-kernel-dev-1e5de18278e6862f4198412b5059a03770fa816a.zip
op-kernel-dev-1e5de18278e6862f4198412b5059a03770fa816a.tar.gz
x86: Introduce GDT_ENTRY_INIT()
GDT_ENTRY_INIT is static initializer of desc_struct. We already have similar macro GDT_ENTRY() but it's static initializer for u64 and it cannot be used for desc_struct. Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com> LKML-Reference: <20090718151219.GD11294@localhost.localdomain> Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'arch/x86/include/asm/desc_defs.h')
-rw-r--r--arch/x86/include/asm/desc_defs.h6
1 files changed, 6 insertions, 0 deletions
diff --git a/arch/x86/include/asm/desc_defs.h b/arch/x86/include/asm/desc_defs.h
index a6adefa..9d66848 100644
--- a/arch/x86/include/asm/desc_defs.h
+++ b/arch/x86/include/asm/desc_defs.h
@@ -34,6 +34,12 @@ struct desc_struct {
};
} __attribute__((packed));
+#define GDT_ENTRY_INIT(flags, base, limit) { { { \
+ .a = ((limit) & 0xffff) | (((base) & 0xffff) << 16), \
+ .b = (((base) & 0xff0000) >> 16) | (((flags) & 0xf0ff) << 8) | \
+ ((limit) & 0xf0000) | ((base) & 0xff000000), \
+ } } }
+
enum {
GATE_INTERRUPT = 0xE,
GATE_TRAP = 0xF,
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