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From: Yinghai Lu <yinghai@kernel.org>
To: Suresh Siddha <suresh.b.siddha@intel.com>,
	Ananth N Mavinakayanahalli <ananth@in.ibm.com>
Cc: Ingo Molnar <mingo@elte.hu>,
	Linus Torvalds <torvalds@linux-foundation.org>,
	lkml <linux-kernel@vger.kernel.org>,
	"stable@kernel.org" <stable@kernel.org>,
	"H. Peter Anvin" <hpa@zytor.com>,
	Thomas Gleixner <tglx@linutronix.de>,
	"Pallipadi, Venkatesh" <venkatesh.pallipadi@intel.com>
Subject: Re: [PATCH] Make Intel 8-way Xeons boot again
Date: Tue, 12 Jan 2010 11:10:19 -0800	[thread overview]
Message-ID: <86802c441001121110u2f3dcfbpafb0d9c4bb6a4e4d@mail.gmail.com> (raw)
In-Reply-To: <1263246829.2859.537.camel@sbs-t61.sc.intel.com>

if the system can not use logical flat.

should have some bit set in FADT...

static int physflat_acpi_madt_oem_check(char *oem_id, char *oem_table_id)
{
#ifdef CONFIG_ACPI
        /*
         * Quirk: some x86_64 machines can only use physical APIC mode
         * regardless of how many processors are present (x86_64 ES7000
         * is an example).
         */
        if (acpi_gbl_FADT.header.revision >= FADT2_REVISION_ID &&
                (acpi_gbl_FADT.flags & ACPI_FADT_APIC_PHYSICAL)) {
                printk(KERN_DEBUG "system APIC only can use physical flat");
                return 1;
        }
#endif

        return 0;
}

  reply	other threads:[~2010-01-12 19:10 UTC|newest]

Thread overview: 25+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2010-01-09 10:10 Ananth N Mavinakayanahalli
2010-01-09 18:11 ` Linus Torvalds
2010-01-09 22:51   ` Yinghai Lu
2010-01-11 17:38   ` Suresh Siddha
2010-01-09 21:13 ` Yinghai Lu
2010-01-10  2:30   ` Ananth N Mavinakayanahalli
2010-01-10  6:35     ` Yinghai Lu
2010-01-10 10:26       ` Ingo Molnar
2010-01-11  4:53         ` [PATCH] Revert 2fbd07a5f so machines with BSPs phsyical apic id != 0 can boot Ananth N Mavinakayanahalli
2010-01-11 21:39           ` Suresh Siddha
2010-01-11 22:55             ` Linus Torvalds
2010-01-11 23:45               ` Suresh Siddha
2010-01-11 23:51                 ` Suresh Siddha
2010-01-12  0:46                 ` Linus Torvalds
2010-01-12  0:50                   ` Linus Torvalds
2010-01-12  2:27                   ` Suresh Siddha
2010-01-14  0:03           ` Yuhong Bao
2010-01-11 21:43         ` [PATCH] Make Intel 8-way Xeons boot again Yinghai Lu
2010-01-11 21:53           ` Suresh Siddha
2010-01-12 19:10             ` Yinghai Lu [this message]
2010-01-12 20:20               ` Suresh Siddha
2010-01-12 21:02                 ` H. Peter Anvin
2010-01-12 21:07                   ` Suresh Siddha
2010-01-12 22:46     ` Suresh Siddha
2010-01-13  4:42       ` Ananth N Mavinakayanahalli

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