From bf480d952bcf25e8ff7e95d2a23964107513ac51 Mon Sep 17 00:00:00 2001 From: Ian Campbell Date: Fri, 18 Feb 2011 16:43:32 +0000 Subject: xen: events: separate MSI PIRQ allocation from PIRQ binding to IRQ Split the binding aspect of xen_allocate_pirq_msi out into a new xen_bind_pirq_to_irq function. In xen_hvm_setup_msi_irq when allocating a pirq write the MSI message to signal the PIRQ as soon as the pirq is obtained. There is no way to free the pirq back so if the subsequent binding to an IRQ fails we want to ensure that we will reuse the PIRQ next time rather than leak it. Signed-off-by: Ian Campbell Signed-off-by: Konrad Rzeszutek Wilk --- include/xen/events.h | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) (limited to 'include') diff --git a/include/xen/events.h b/include/xen/events.h index f70536af921c..18bf825bac66 100644 --- a/include/xen/events.h +++ b/include/xen/events.h @@ -75,7 +75,9 @@ int xen_allocate_pirq(unsigned gsi, int shareable, char *name); int xen_map_pirq_gsi(unsigned pirq, unsigned gsi, int shareable, char *name); #ifdef CONFIG_PCI_MSI -int xen_allocate_pirq_msi(char *name, int *pirq, int alloc_pirq); +int xen_allocate_pirq_msi(struct pci_dev *dev, struct msi_desc *msidesc); +int xen_bind_pirq_msi_to_irq(struct pci_dev *dev, struct msi_desc *msidesc, + int pirq, const char *name); int xen_create_msi_irq(struct pci_dev *dev, struct msi_desc *msidesc, int type); #endif -- cgit v1.2.3