Messages in this thread Patch in this message | | | From | Jeremy Fitzhardinge <> | Subject | [PATCH 09/10] xen: pre-initialize legacy irqs early | Date | Fri, 27 Feb 2009 18:14:07 -0800 |
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From: Ian Campbell <ian.campbell@citrix.com>
Various legacy devices, such as IDE, assume their legacy interrupts are already initialized and are immediately usable. Pre-initialize all the legacy interrupts.
Signed-off-by: Ian Campbell <ian.campbell@citrix.com> Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com> --- arch/x86/xen/pci.c | 6 +++++- 1 files changed, 5 insertions(+), 1 deletions(-)
diff --git a/arch/x86/xen/pci.c b/arch/x86/xen/pci.c index 61f070c..d661c74 100644 --- a/arch/x86/xen/pci.c +++ b/arch/x86/xen/pci.c @@ -60,9 +60,9 @@ int xen_register_gsi(u32 gsi, int triggering, int polarity) void __init xen_setup_pirqs(void) { -#ifdef CONFIG_ACPI int irq; +#ifdef CONFIG_ACPI /* * Set up acpi interrupt in acpi_gbl_FADT.sci_interrupt. */ @@ -74,4 +74,8 @@ void __init xen_setup_pirqs(void) /* Blerk. */ acpi_gbl_FADT.sci_interrupt = irq; #endif + + /* Pre-allocate legacy irqs */ + for (irq=0; irq < NR_IRQS_LEGACY; irq++) + xen_allocate_pirq(irq); } -- 1.6.0.6
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