From: Cyrill Gorcunov <gorcunov@gmail.com>
To: Youquan Song <youquan.song@intel.com>
Cc: mingo@elte.hu, hpa@zytor.com, tglx@linutronix.de,
linux-kernel@vger.kernel.org, dwmw2@infradead.org,
Suresh Siddha <suresh.b.siddha@intel.com>,
youqun.song@intel.com
Subject: Re: Fix interrupt remapping hang if interrupt remapping disable in BIOS
Date: Mon, 7 Sep 2009 18:59:40 +0400 [thread overview]
Message-ID: <20090907145940.GD5294@lenovo> (raw)
In-Reply-To: <20090907141313.GA26091@youquan-linux.bj.intel.com>
[Youquan Song - Mon, Sep 07, 2009 at 10:13:13AM -0400]
...
| static int disable_intremap;
| static __init int setup_nointremap(char *str)
| @@ -607,9 +608,14 @@ end:
| int __init intr_remapping_supported(void)
| {
| struct dmar_drhd_unit *drhd;
| -
| + struct acpi_table_dmar *dmar;
| +
| if (disable_intremap)
| return 0;
| +
| + dmar = (struct acpi_table_dmar *)dmar_tbl;
| + if (!(dmar->flags & 0x1))
| + return 0;
|
| for_each_drhd_unit(drhd) {
| struct intel_iommu *iommu = drhd->iommu;
Hi Youquan,
perhaps we could move this test to helper function
in dmar.c instead of plain external variable test?
-- Cyrill
next prev parent reply other threads:[~2009-09-07 14:59 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-09-07 14:13 Fix interrupt remapping hang if interrupt remapping disable in BIOS Youquan Song
2009-09-07 14:59 ` Cyrill Gorcunov [this message]
2009-09-09 10:46 ` Youquan,Song
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