]> git.karo-electronics.de Git - karo-tx-linux.git/commitdiff
x86, vt-d: Fix the vt-d fault handling irq migration in the x2apic mode
authorKenji Kaneshige <kaneshige.kenji@jp.fujitsu.com>
Wed, 1 Dec 2010 17:40:32 +0000 (09:40 -0800)
committerGreg Kroah-Hartman <gregkh@suse.de>
Mon, 21 Mar 2011 19:44:28 +0000 (12:44 -0700)
commit 086e8ced65d9bcc4a8e8f1cd39b09640f2883f90 upstream.

In x2apic mode, we need to set the upper address register of the fault
handling interrupt register of the vt-d hardware. Without this
irq migration of the vt-d fault handling interrupt is broken.

Signed-off-by: Kenji Kaneshige <kaneshige.kenji@jp.fujitsu.com>
LKML-Reference: <1291225233.2648.39.camel@sbsiddha-MOBL3>
Signed-off-by: Suresh Siddha <suresh.b.siddha@intel.com>
Acked-by: Chris Wright <chrisw@sous-sol.org>
Tested-by: Takao Indoh <indou.takao@jp.fujitsu.com>
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
arch/x86/kernel/apic/io_apic.c

index aa2909b077fd060d992d5013dda2600cf04a60bf..974faf96026d4f6093f64c937432ae07c3c84de3 100644 (file)
@@ -3636,6 +3636,7 @@ static int dmar_msi_set_affinity(unsigned int irq, const struct cpumask *mask)
        msg.data |= MSI_DATA_VECTOR(cfg->vector);
        msg.address_lo &= ~MSI_ADDR_DEST_ID_MASK;
        msg.address_lo |= MSI_ADDR_DEST_ID(dest);
+       msg.address_hi = MSI_ADDR_BASE_HI | MSI_ADDR_EXT_DEST_ID(dest);
 
        dmar_msi_write(irq, &msg);