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authorKenji Kaneshige <kaneshige.kenji@jp.fujitsu.com>2010-12-01 09:40:32 -0800
committerGreg Kroah-Hartman <gregkh@suse.de>2011-01-07 13:58:34 -0800
commitf6e0591560cf3add6ee845cbde0825177044ca63 (patch)
tree75130aa56588b841edac9ebad4b56fcd0418fe56
parent5d3283a41c7cc33304eb90756f6f927d212fe0bf (diff)
x86, vt-d: Fix the vt-d fault handling irq migration in the x2apic mode
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>
-rw-r--r--arch/x86/kernel/apic/io_apic.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/x86/kernel/apic/io_apic.c b/arch/x86/kernel/apic/io_apic.c
index ad1515dbc5ef..4d90327853b7 100644
--- a/arch/x86/kernel/apic/io_apic.c
+++ b/arch/x86/kernel/apic/io_apic.c
@@ -3626,6 +3626,7 @@ 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);