[tip:x86/urgent] x86, vt-d: Fix the vt-d fault handling irq migration in the x2apic mode

[tip-bot for Kenji Kaneshige]

Commit-ID:  086e8ced65d9bcc4a8e8f1cd39b09640f2883f90
Gitweb:     http://git.kernel.org/tip/086e8ced65d9bcc4a8e8f1cd39b09640f2883f90
Author:     Kenji Kaneshige <kaneshige.kenji@xxxxxxxxxxxxxx>
AuthorDate: Wed, 1 Dec 2010 09:40:32 -0800
Committer:  H. Peter Anvin <hpa@xxxxxxxxxxxxxxx>
CommitDate: Mon, 13 Dec 2010 16:52:52 -0800

x86, vt-d: Fix the vt-d fault handling irq migration in the x2apic mode

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@xxxxxxxxxxxxxx>
LKML-Reference: <1291225233.2648.39.camel@sbsiddha-MOBL3>
Signed-off-by: Suresh Siddha <suresh.b.siddha@xxxxxxxxx>
Cc: stable@xxxxxxxxxx [v2.6.32+]
Acked-by: Chris Wright <chrisw@xxxxxxxxxxxx>
Tested-by: Takao Indoh <indou.takao@xxxxxxxxxxxxxx>
Signed-off-by: H. Peter Anvin <hpa@xxxxxxxxxxxxxxx>
---
 arch/x86/kernel/apic/io_apic.c |    1 +
 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 226060e..fadcd74 100644
--- a/arch/x86/kernel/apic/io_apic.c
+++ b/arch/x86/kernel/apic/io_apic.c
@@ -3412,6 +3412,7 @@ dmar_msi_set_affinity(struct irq_data *data, 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);
 
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