Re: [PATCH] x86: update mptable v7 - fix

From: Ingo Molnar
Date: Mon Jun 09 2008 - 06:13:56 EST



* Yinghai Lu <yhlu.kernel@xxxxxxxxx> wrote:

> [PATCH] x86: update mptable v7 - fix
>
> need to call early_reserve_e820 to prelocate mptable for 32bit
>
> Signed-off-by: Yinghai Lu <yhlu.kernel@xxxxxxxxx>
>
> Index: linux-2.6/arch/x86/kernel/setup_32.c
> ===================================================================
> --- linux-2.6.orig/arch/x86/kernel/setup_32.c
> +++ linux-2.6/arch/x86/kernel/setup_32.c
> @@ -761,6 +761,8 @@ void __init setup_arch(char **cmdline_p)
> */
> max_pfn = e820_end_of_ram();
>
> + /* pre allocte 4k for mptable mpc */
> + early_reserve_e820_mpc_new();

applied, thanks. It needed the small build fix below as well, for UP
32-bit.

Ingo

--------------->
commit 3c803fb3e1972566f7a1613f53f7e5a70fbde83f
Author: Ingo Molnar <mingo@xxxxxxx>
Date: Sun May 25 21:16:06 2008 +0200

x86, mpparse: build fix

fix:

LD .tmp_vmlinux1
arch/x86/kernel/built-in.o: In function `setup_arch':
: undefined reference to `early_reserve_e820_mpc_new'

Signed-off-by: Ingo Molnar <mingo@xxxxxxx>

diff --git a/include/asm-x86/mpspec.h b/include/asm-x86/mpspec.h
index 6e9c958..b8ba374 100644
--- a/include/asm-x86/mpspec.h
+++ b/include/asm-x86/mpspec.h
@@ -46,7 +46,11 @@ extern unsigned long mp_lapic_addr;

extern void find_smp_config(void);
extern void get_smp_config(void);
+#ifdef CONFIG_X86_MPPARSE
extern void early_reserve_e820_mpc_new(void);
+#else
+static inline void early_reserve_e820_mpc_new(void) { }
+#endif

void __cpuinit generic_processor_info(int apicid, int version);
#ifdef CONFIG_ACPI

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/