[Bugfix 0/3] Fix regressions in Xen IRQ management

Jiang Liu
2015-01-19T04:52:54Z

Hi all,
Sander reports an Xen pci-passthrough regression caused by
commit cffe0a2b5a34c95a4dadc9ec7132690a5b0f6687 ("x86, irq: Keep
balance of IOAPIC pin reference count"). This patch set tries to
fix it.

Patch 1 is a fix for another issue found during fixing the regression.
Patch 2 is a hotfix for the regression and should be targeted for v3.19.
Patch 3 is the foundamental fix for the regression and should be targeted
at v3.20.

Hi Sander,
Could you please help to test by:
1) only apply patch 1 and patch 2
2) and then apply patch 3 ontop of patch 1/2.
Thanks!
Gerry

Jiang Liu (3):
xen/irq, ACPI: Fix regression in xen PCI passthrough caused by
cffe0a2b5a34
xen/irq: Override ACPI IRQ management callback __acpi_unregister_gsi
x86/PCI: Refine the way to release PCI IRQ resources

arch/x86/include/asm/acpi.h | 1 +
arch/x86/include/asm/pci_x86.h | 2 --
arch/x86/pci/common.c | 30 ++++++++++++++++++++++++++++--
arch/x86/pci/intel_mid_pci.c | 4 ++--
arch/x86/pci/irq.c | 15 +--------------
arch/x86/pci/xen.c | 2 ++
drivers/acpi/pci_irq.c | 10 +---------
7 files changed, 35 insertions(+), 29 deletions(-)

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1.7.10.4