This is a note to let you know that I've just added the patch titled
x86, vt-d: Fix the vt-d fault handling irq migration in the x2apic mode
to the 2.6.36-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
x86-vt-d-fix-the-vt-d-fault-handling-irq-migration-in-the-x2apic-mode.patch
and it can be found in the queue-2.6.36 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <[email protected]> know about it.
>From 086e8ced65d9bcc4a8e8f1cd39b09640f2883f90 Mon Sep 17 00:00:00 2001
From: Kenji Kaneshige <[email protected]>
Date: Wed, 1 Dec 2010 09:40:32 -0800
Subject: x86, vt-d: Fix the vt-d fault handling irq migration in the x2apic mode
From: Kenji Kaneshige <[email protected]>
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 <[email protected]>
LKML-Reference: <1291225233.2648.39.ca...@sbsiddha-mobl3>
Signed-off-by: Suresh Siddha <[email protected]>
Acked-by: Chris Wright <[email protected]>
Tested-by: Takao Indoh <[email protected]>
Signed-off-by: H. Peter Anvin <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
---
arch/x86/kernel/apic/io_apic.c | 1 +
1 file changed, 1 insertion(+)
--- 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(unsigne
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);
Patches currently in stable-queue which might be from
[email protected] are
queue-2.6.36/x86-vt-d-fix-the-vt-d-fault-handling-irq-migration-in-the-x2apic-mode.patch
queue-2.6.36/x86-enable-the-intr-remap-fault-handling-after-local-apic-setup.patch
queue-2.6.36/x86-vt-d-quirk-for-masking-vtd-spec-errors-to-platform-error-handling-logic.patch
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