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authorAkinobu Mita <akinobu.mita@gmail.com>2009-08-09 17:03:52 +0900
committerIngo Molnar <mingo@elte.hu>2009-08-10 11:10:52 +0200
commitc7425314c755d5f94da7c978205c85a7c6201212 (patch)
treeef0e1152756a6e113a6d6b0cebc53b263eb78974 /drivers/pnp/pnpbios
parent4c711576b90cc36c13b94816a953a8de6a53d03c (diff)
x86: Introduce GDT_ENTRY_INIT(), initialize bad_bios_desc statically
Fully initialize bad_bios_desc statically instead of doing some fields statically and some dynamically. Suggested-by: "H. Peter Anvin" <hpa@zytor.com> Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com> LKML-Reference: <20090809080350.GA4765@localhost.localdomain> Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'drivers/pnp/pnpbios')
-rw-r--r--drivers/pnp/pnpbios/bioscalls.c5
1 files changed, 2 insertions, 3 deletions
diff --git a/drivers/pnp/pnpbios/bioscalls.c b/drivers/pnp/pnpbios/bioscalls.c
index bd035e3d3550..fc83783c3a96 100644
--- a/drivers/pnp/pnpbios/bioscalls.c
+++ b/drivers/pnp/pnpbios/bioscalls.c
@@ -60,7 +60,8 @@ do { \
set_desc_limit(&gdt[(selname) >> 3], (size) - 1); \
} while(0)
-static struct desc_struct bad_bios_desc = GDT_ENTRY_INIT(0x4092, 0, 0);
+static struct desc_struct bad_bios_desc = GDT_ENTRY_INIT(0x4092,
+ (unsigned long)__va(0x400UL), PAGE_SIZE - 0x400 - 1);
/*
* At some point we want to use this stack frame pointer to unwind
@@ -476,8 +477,6 @@ void pnpbios_calls_init(union pnp_bios_install_struct *header)
pnp_bios_callpoint.offset = header->fields.pm16offset;
pnp_bios_callpoint.segment = PNP_CS16;
- set_desc_base(&bad_bios_desc, (unsigned long)__va(0x40UL << 4));
- set_desc_limit(&bad_bios_desc, 4095 - (0x40 << 4));
for_each_possible_cpu(i) {
struct desc_struct *gdt = get_cpu_gdt_table(i);
if (!gdt)

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