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); -- To unsubscribe from this list: send the line "unsubscribe linux-tip-commits" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
|