diff options
| author | Kenji Kaneshige <kaneshige.kenji@jp.fujitsu.com> | 2010-12-01 09:40:32 -0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2011-01-07 14:43:11 -0800 |
| commit | 38d63e89cdc06e5c8d3cca47932a9ada87ce48dd (patch) | |
| tree | 0f222f93226131ce2f2f53485419180be17614aa /arch/x86 | |
| parent | 15b118dd1202875aa8e08e0506d53f56eeed84c1 (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>
Diffstat (limited to 'arch/x86')
| -rw-r--r-- | 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 d850eeb19243..8928d9785eb4 100644 --- a/arch/x86/kernel/apic/io_apic.c +++ b/arch/x86/kernel/apic/io_apic.c @@ -3567,6 +3567,7 @@ 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); |