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Re: [PATCH 8/8] Convert PDA into the percpu section

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From: Jeremy Fitzhardinge
Subject: Re: [PATCH 8/8] Convert PDA into the percpu section
Date: Tuesday, March 13, 2007 - 10:15 am

Rusty Russell wrote:

Why testing with qemu is not enough.

diff -r 8dcd1dc9b298 arch/i386/kernel/cpu/common.c
--- a/arch/i386/kernel/cpu/common.c	Tue Mar 13 00:33:37 2007 -0700
+++ b/arch/i386/kernel/cpu/common.c	Tue Mar 13 08:33:42 2007 -0700
@@ -627,7 +627,7 @@ __cpuinit void init_gdt(int cpu, struct 
 	pack_descriptor((u32 *)&gdt[GDT_ENTRY_PERCPU].a,
 			(u32 *)&gdt[GDT_ENTRY_PERCPU].b,
 			__per_cpu_offset[cpu], 0xFFFFF,
-			0x80 | DESCTYPE_S | 0x2, 0); /* present read-write data segment */
+			0x80 | DESCTYPE_S | 0x2, 0x8); /* present read-write data segment, G */
 	per_cpu(this_cpu_off, cpu) = __per_cpu_offset[cpu];
 	per_cpu(cpu_number, cpu) = cpu;
 #endif /* SMP*/

    J
-
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Messages in current thread:
[PATCH 0/8] x86 boot, pda and gdt cleanups, Rusty Russell, (Tue Mar 6, 5:39 am)
[PATCH 1/8] Remove cpu_gdt_table: use boot_gdt_table until ..., Rusty Russell, (Tue Mar 6, 5:53 am)
[PATCH 2/8] Remove NR_CPUS from asm-generic/percpu.h, Rusty Russell, (Tue Mar 6, 5:54 am)
[PATCH 3/8] Use per-cpu variables for GDT, PDA, Rusty Russell, (Tue Mar 6, 5:55 am)
[PATCH 4/8] Cleanup setup_pda, Rusty Russell, (Tue Mar 6, 5:57 am)
[PATCH 5/8] Cleanup GDT access, Rusty Russell, (Tue Mar 6, 5:58 am)
[PATCH 6/8] Allow per-cpu variables to be page-aligned, Rusty Russell, (Tue Mar 6, 6:00 am)
[PATCH 7/8] Page-align the GDT, Rusty Russell, (Tue Mar 6, 6:01 am)
[PATCH 8/8] Convert PDA into the percpu section, Rusty Russell, (Tue Mar 6, 6:03 am)
Re: [PATCH 8/8] Convert PDA into the percpu section, Ingo Molnar, (Tue Mar 6, 6:10 am)
Re: [PATCH 6/8] Allow per-cpu variables to be page-aligned, Ingo Molnar, (Tue Mar 6, 6:15 am)
Re: [PATCH 1/8] Remove cpu_gdt_table: use boot_gdt_table u ..., Ingo Molnar, (Tue Mar 6, 6:20 am)
Re: [PATCH 2/8] Remove NR_CPUS from asm-generic/percpu.h, Ingo Molnar, (Tue Mar 6, 6:21 am)
Re: [PATCH 1/8] Remove cpu_gdt_table: use boot_gdt_table u ..., Ingo Molnar, (Tue Mar 6, 6:26 am)
Re: [PATCH 3/8] Use per-cpu variables for GDT, PDA, Jeremy Fitzhardinge, (Tue Mar 6, 11:14 am)
Re: [PATCH 5/8] Cleanup GDT access, Jeremy Fitzhardinge, (Tue Mar 6, 11:16 am)
Re: [PATCH 6/8] Allow per-cpu variables to be page-aligned, Jeremy Fitzhardinge, (Tue Mar 6, 11:17 am)
Re: [PATCH 8/8] Convert PDA into the percpu section, Jeremy Fitzhardinge, (Tue Mar 6, 11:28 am)
Re: [PATCH 8/8] Convert PDA into the percpu section, Jeremy Fitzhardinge, (Tue Mar 6, 11:37 am)
Re: [PATCH 8/8] Convert PDA into the percpu section, Andi Kleen, (Tue Mar 6, 12:34 pm)
Re: [PATCH 8/8] Convert PDA into the percpu section, Rusty Russell, (Tue Mar 6, 5:12 pm)
Re: [PATCH 6/8] Allow per-cpu variables to be page-aligned, Rusty Russell, (Tue Mar 6, 5:16 pm)
Re: [PATCH 1/8] Remove cpu_gdt_table: use boot_gdt_table u ..., Rusty Russell, (Tue Mar 6, 5:22 pm)
Re: [PATCH 6/8] Allow per-cpu variables to be page-aligned, Rusty Russell, (Tue Mar 6, 5:29 pm)
Re: [PATCH 8/8] Convert PDA into the percpu section, Rusty Russell, (Tue Mar 6, 5:33 pm)
Re: [PATCH 8/8] Convert PDA into the percpu section, Jeremy Fitzhardinge, (Tue Mar 6, 5:35 pm)
Re: [PATCH 6/8] Allow per-cpu variables to be page-aligned, H. Peter Anvin, (Tue Mar 6, 5:44 pm)
Re: [PATCH 8/8] Convert PDA into the percpu section, Rusty Russell, (Wed Mar 7, 4:55 am)
Re: [PATCH 8/8] Convert PDA into the percpu section, Jeremy Fitzhardinge, (Tue Mar 13, 10:15 am)
Re: [PATCH 0/8] x86 boot, pda and gdt cleanups, Jeremy Fitzhardinge, (Tue Mar 13, 1:48 pm)
Re: [PATCH 0/8] x86 boot, pda and gdt cleanups, Rusty Russell, (Tue Mar 13, 7:25 pm)
Re: [PATCH 8/8] Convert PDA into the percpu section, Rusty Russell, (Tue Mar 13, 7:27 pm)
Re: [PATCH 0/8] x86 boot, pda and gdt cleanups, Jeremy Fitzhardinge, (Tue Mar 13, 9:39 pm)
Re: [PATCH 0/8] x86 boot, pda and gdt cleanups, Rusty Russell, (Tue Mar 13, 11:54 pm)
Re: [PATCH 0/8] x86 boot, pda and gdt cleanups, Rusty Russell, (Wed Mar 14, 4:55 pm)
Re: [PATCH 0/8] x86 boot, pda and gdt cleanups, Jeremy Fitzhardinge, (Wed Mar 14, 6:57 pm)