Messages in this thread | | | Date | Mon, 7 Sep 2009 18:59:40 +0400 | From | Cyrill Gorcunov <> | Subject | Re: Fix interrupt remapping hang if interrupt remapping disable in BIOS |
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[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
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