Displaying 18 results from an estimated 18 matches for "gdt_entry_pnpbios_base".
2007 Apr 18
0
[PATCH 1/21] i386 Pnp segments in segment h
...3:31.000000000 -0800
+++ linux-2.6.14-zach-work/include/asm-i386/segment.h 2005-11-05 00:28:13.000000000 -0800
@@ -91,6 +91,20 @@
#define GDT_ENTRY_BOOT_DS (GDT_ENTRY_BOOT_CS + 1)
#define __BOOT_DS (GDT_ENTRY_BOOT_DS * 8)
+/* The PnP BIOS entries in the GDT */
+#define GDT_ENTRY_PNPBIOS_CS32 (GDT_ENTRY_PNPBIOS_BASE + 0)
+#define GDT_ENTRY_PNPBIOS_CS16 (GDT_ENTRY_PNPBIOS_BASE + 1)
+#define GDT_ENTRY_PNPBIOS_DS (GDT_ENTRY_PNPBIOS_BASE + 2)
+#define GDT_ENTRY_PNPBIOS_TS1 (GDT_ENTRY_PNPBIOS_BASE + 3)
+#define GDT_ENTRY_PNPBIOS_TS2 (GDT_ENTRY_PNPBIOS_BASE + 4)
+
+/* The PnP BIOS selectors */
+#define PNP_CS32...
2007 Apr 18
0
[PATCH 1/21] i386 Pnp segments in segment h
...3:31.000000000 -0800
+++ linux-2.6.14-zach-work/include/asm-i386/segment.h 2005-11-05 00:28:13.000000000 -0800
@@ -91,6 +91,20 @@
#define GDT_ENTRY_BOOT_DS (GDT_ENTRY_BOOT_CS + 1)
#define __BOOT_DS (GDT_ENTRY_BOOT_DS * 8)
+/* The PnP BIOS entries in the GDT */
+#define GDT_ENTRY_PNPBIOS_CS32 (GDT_ENTRY_PNPBIOS_BASE + 0)
+#define GDT_ENTRY_PNPBIOS_CS16 (GDT_ENTRY_PNPBIOS_BASE + 1)
+#define GDT_ENTRY_PNPBIOS_DS (GDT_ENTRY_PNPBIOS_BASE + 2)
+#define GDT_ENTRY_PNPBIOS_TS1 (GDT_ENTRY_PNPBIOS_BASE + 3)
+#define GDT_ENTRY_PNPBIOS_TS2 (GDT_ENTRY_PNPBIOS_BASE + 4)
+
+/* The PnP BIOS selectors */
+#define PNP_CS32...
2007 Apr 18
1
[PATCH 2/3] Pnp bios gdt fix
...ause APs will not have allocated GDTs until later in
+ * the boot process.
+ */
+ Q2_SET_SEL(0, PNP_CS32, &pnp_bios_callfunc, 64 * 1024);
+ Q_SET_SEL(0, PNP_CS16, header->fields.pm16cseg, 64 * 1024);
+ Q_SET_SEL(0, PNP_DS, header->fields.pm16dseg, 64 * 1024);
+ memcpy(&cpu_gdt_table[GDT_ENTRY_PNPBIOS_BASE],
+ &get_cpu_gdt_table(0)[GDT_ENTRY_PNPBIOS_BASE],
+ 3 * sizeof(struct desc_struct));
}
2007 Apr 18
1
[PATCH 2/3] Pnp bios gdt fix
...ause APs will not have allocated GDTs until later in
+ * the boot process.
+ */
+ Q2_SET_SEL(0, PNP_CS32, &pnp_bios_callfunc, 64 * 1024);
+ Q_SET_SEL(0, PNP_CS16, header->fields.pm16cseg, 64 * 1024);
+ Q_SET_SEL(0, PNP_DS, header->fields.pm16dseg, 64 * 1024);
+ memcpy(&cpu_gdt_table[GDT_ENTRY_PNPBIOS_BASE],
+ &get_cpu_gdt_table(0)[GDT_ENTRY_PNPBIOS_BASE],
+ 3 * sizeof(struct desc_struct));
}
2007 Apr 18
2
[patch 3/8] Allow a kernel to not be in ring 0.
.../* Ok, create the new process.. */
--- 2.6.18-rc3-32.orig/arch/i386/mm/extable.c
+++ 2.6.18-rc3-32/arch/i386/mm/extable.c
@@ -11,7 +11,7 @@ int fixup_exception(struct pt_regs *regs
const struct exception_table_entry *fixup;
#ifdef CONFIG_PNPBIOS
- if (unlikely((regs->xcs & ~15) == (GDT_ENTRY_PNPBIOS_BASE << 3)))
+ if (unlikely(SEGMENT_IS_PNP_CODE(regs->xcs)))
{
extern u32 pnp_bios_fault_eip, pnp_bios_fault_esp;
extern u32 pnp_bios_is_utter_crap;
--- 2.6.18-rc3-32.orig/arch/i386/mm/fault.c
+++ 2.6.18-rc3-32/arch/i386/mm/fault.c
@@ -27,6 +27,7 @@
#include <asm/uaccess.h>
#inc...
2007 Apr 18
2
[patch 3/8] Allow a kernel to not be in ring 0.
.../* Ok, create the new process.. */
--- 2.6.18-rc3-32.orig/arch/i386/mm/extable.c
+++ 2.6.18-rc3-32/arch/i386/mm/extable.c
@@ -11,7 +11,7 @@ int fixup_exception(struct pt_regs *regs
const struct exception_table_entry *fixup;
#ifdef CONFIG_PNPBIOS
- if (unlikely((regs->xcs & ~15) == (GDT_ENTRY_PNPBIOS_BASE << 3)))
+ if (unlikely(SEGMENT_IS_PNP_CODE(regs->xcs)))
{
extern u32 pnp_bios_fault_eip, pnp_bios_fault_esp;
extern u32 pnp_bios_is_utter_crap;
--- 2.6.18-rc3-32.orig/arch/i386/mm/fault.c
+++ 2.6.18-rc3-32/arch/i386/mm/fault.c
@@ -27,6 +27,7 @@
#include <asm/uaccess.h>
#inc...
2007 Apr 18
2
[PATCH 4/21] i386 Broken bios common
...gus BIOS segment
+ * descriptor in a spare entry and fix it up at boot.
+ */
+#define GDT_ENTRY_BAD_BIOS_CACHE 4
+#define GDT_ENTRY_BAD_BIOS (0x40 >> 3)
+#define BAD_BIOS_AREA (0x400)
+
/* The PnP BIOS entries in the GDT */
#define GDT_ENTRY_PNPBIOS_CS32 (GDT_ENTRY_PNPBIOS_BASE + 0)
#define GDT_ENTRY_PNPBIOS_CS16 (GDT_ENTRY_PNPBIOS_BASE + 1)
Index: linux-2.6.14-zach-work/arch/i386/kernel/head.S
===================================================================
--- linux-2.6.14-zach-work.orig/arch/i386/kernel/head.S 2005-11-04 15:46:50.000000000 -0800
+++ linux-2.6.14-z...
2007 Apr 18
2
[PATCH 4/21] i386 Broken bios common
...gus BIOS segment
+ * descriptor in a spare entry and fix it up at boot.
+ */
+#define GDT_ENTRY_BAD_BIOS_CACHE 4
+#define GDT_ENTRY_BAD_BIOS (0x40 >> 3)
+#define BAD_BIOS_AREA (0x400)
+
/* The PnP BIOS entries in the GDT */
#define GDT_ENTRY_PNPBIOS_CS32 (GDT_ENTRY_PNPBIOS_BASE + 0)
#define GDT_ENTRY_PNPBIOS_CS16 (GDT_ENTRY_PNPBIOS_BASE + 1)
Index: linux-2.6.14-zach-work/arch/i386/kernel/head.S
===================================================================
--- linux-2.6.14-zach-work.orig/arch/i386/kernel/head.S 2005-11-04 15:46:50.000000000 -0800
+++ linux-2.6.14-z...
2007 Apr 18
1
[PATCH] Slight cleanups for x86 ring macros (against rc3-mm2)
...segments after a fault
- */
+/* Matches __KERNEL_CS and __USER_CS (they must be 2 entries apart) */
#define SEGMENT_IS_FLAT_CODE(x) (((x) & 0xec) == GDT_ENTRY_KERNEL_CS * 8)
+/* Matches PNP_CS32 and PNP_CS16 (they must be consecutive) */
#define SEGMENT_IS_PNP_CODE(x) (((x) & 0xf4) == GDT_ENTRY_PNPBIOS_BASE * 8)
/* Simple and small GDT entries for booting only */
@@ -118,8 +117,16 @@
*/
#define IDT_ENTRIES 256
-/* Bottom three bits of xcs give the ring privilege level */
-#define SEGMENT_RPL_MASK 0x3
+/* Bottom two bits of selector give the ring privilege level */
+#define SEGMENT_RPL_MASK 0x3...
2007 Apr 18
1
[PATCH] Slight cleanups for x86 ring macros (against rc3-mm2)
...segments after a fault
- */
+/* Matches __KERNEL_CS and __USER_CS (they must be 2 entries apart) */
#define SEGMENT_IS_FLAT_CODE(x) (((x) & 0xec) == GDT_ENTRY_KERNEL_CS * 8)
+/* Matches PNP_CS32 and PNP_CS16 (they must be consecutive) */
#define SEGMENT_IS_PNP_CODE(x) (((x) & 0xf4) == GDT_ENTRY_PNPBIOS_BASE * 8)
/* Simple and small GDT entries for booting only */
@@ -118,8 +117,16 @@
*/
#define IDT_ENTRIES 256
-/* Bottom three bits of xcs give the ring privilege level */
-#define SEGMENT_RPL_MASK 0x3
+/* Bottom two bits of selector give the ring privilege level */
+#define SEGMENT_RPL_MASK 0x3...
2007 Apr 18
1
[PATCH 0/7] Using %gs for per-cpu areas on x86
OK, here it is. Benchmarks still coming. This is against Andi's
2.6.18-rc7-git3 tree, and replaces the patches between (and not
including) i386-pda-asm-offsets and i386-early-fault.
One patch is identical, one is mildly modified, the rest are
re-implemented but inspired by Jeremy's PDA work.
Thanks,
Rusty.
--
Help! Save Australia from the worst of the DMCA: http://linux.org.au/law
2007 Apr 18
1
[PATCH 0/7] Using %gs for per-cpu areas on x86
OK, here it is. Benchmarks still coming. This is against Andi's
2.6.18-rc7-git3 tree, and replaces the patches between (and not
including) i386-pda-asm-offsets and i386-early-fault.
One patch is identical, one is mildly modified, the rest are
re-implemented but inspired by Jeremy's PDA work.
Thanks,
Rusty.
--
Help! Save Australia from the worst of the DMCA: http://linux.org.au/law
2007 Apr 18
8
[patch 0/8] Basic infrastructure patches for a paravirtualized kernel
Hi Andrew,
This series of patches lays the basic ground work for the
paravirtualized kernel patches coming later on. I think this lot is
ready for the rough-and-tumble world of the -mm tree.
The main change from the last posting is that all the page-table
related patches have been moved out, and will be posted separately.
Also, the off-by-one in reserving the top of address space has been
2007 Apr 18
8
[patch 0/8] Basic infrastructure patches for a paravirtualized kernel
Hi Andrew,
This series of patches lays the basic ground work for the
paravirtualized kernel patches coming later on. I think this lot is
ready for the rough-and-tumble world of the -mm tree.
The main change from the last posting is that all the page-table
related patches have been moved out, and will be posted separately.
Also, the off-by-one in reserving the top of address space has been
2007 Apr 18
15
[PATCH 0 of 13] Basic infrastructure patches for a paravirtualized kernel
[ REPOST: Apologies to anyone who has seen this before. It
didn't make it onto any of the lists it should have. -J ]
Hi Andrew,
This series of patches lays the basic ground work for the
paravirtualized kernel patches coming later on. I think this lot is
ready for the rough-and-tumble world of the -mm tree.
For the most part, these patches do nothing or very little. The
patches should
2007 Apr 18
15
[PATCH 0 of 13] Basic infrastructure patches for a paravirtualized kernel
[ REPOST: Apologies to anyone who has seen this before. It
didn't make it onto any of the lists it should have. -J ]
Hi Andrew,
This series of patches lays the basic ground work for the
paravirtualized kernel patches coming later on. I think this lot is
ready for the rough-and-tumble world of the -mm tree.
For the most part, these patches do nothing or very little. The
patches should
2007 Apr 18
3
Per-cpu patches on top of PDA stuff...
Hi Jeremy, all,
Sorry this took so long, spent last week in Japan at OSDL conf then
netconf. After several false starts, I ended up with a very simple
implementation, which clashes significantly with your work since then
8(. I've pushed the patches anyway, but it's going to be significant
work for me to re-merge them, so I wanted your feedback first.
The first patch simply changes
2007 Apr 18
3
Per-cpu patches on top of PDA stuff...
Hi Jeremy, all,
Sorry this took so long, spent last week in Japan at OSDL conf then
netconf. After several false starts, I ended up with a very simple
implementation, which clashes significantly with your work since then
8(. I've pushed the patches anyway, but it's going to be significant
work for me to re-merge them, so I wanted your feedback first.
The first patch simply changes