linux-kernel - Re: [PATCH] x86: Allow MMCONFIG above 4GB on x86

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <4875BA19.3060101@jp.fujitsu.com>
Date:	Thu, 10 Jul 2008 16:28:25 +0900
From:	Kenji Kaneshige <kaneshige.kenji@...fujitsu.com>
To:	John Keller <jpk@....com>
CC:	linux-kernel@...r.kernel.org, linux-acpi@...r.kernel.org,
	takayoshi.kochi@...il.com
Subject: Re: [PATCH] x86: Allow MMCONFIG above 4GB on x86_64

John Keller wrote:
> SGI UV will have MMCFG base addresses that are greater than 4GB (32 bits).
> 
> Signed-off-by: John Keller <jpk@....com>

Fujitsu servers also will need this change.

Thanks,
Kenji Kaneshige


> ---
> 
> A similar patch was submitted over a year ago, but apparently was not
> merged in.
> 
>    http://marc.info/?l=linux-acpi&m=117283388212912&w=2
> 
> 
> Index: linux-2.6/arch/x86/kernel/acpi/boot.c
> ===================================================================
> --- linux-2.6.orig/arch/x86/kernel/acpi/boot.c	2008-07-09 13:02:54.000000000 -0500
> +++ linux-2.6/arch/x86/kernel/acpi/boot.c	2008-07-09 15:25:32.000000000 -0500
> @@ -200,6 +200,7 @@ int __init acpi_parse_mcfg(struct acpi_t
>  	}
>  
>  	memcpy(pci_mmcfg_config, &mcfg[1], config_size);
> +#ifndef CONFIG_X86_64
>  	for (i = 0; i < pci_mmcfg_config_num; ++i) {
>  		if (pci_mmcfg_config[i].address > 0xFFFFFFFF) {
>  			printk(KERN_ERR PREFIX
> @@ -209,6 +210,7 @@ int __init acpi_parse_mcfg(struct acpi_t
>  			return -ENODEV;
>  		}
>  	}
> +#endif
>  
>  	return 0;
>  }
> --
> To unsubscribe from this list: send the line "unsubscribe linux-acpi" in
> the body of a message to majordomo@...r.kernel.org
> More majordomo info at  http://vger.kernel.org/majordomo-info.html
> 
> 


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