[PATCH 17/17] xen: disable MSI

Jeremy Fitzhardinge
2009-05-12T23:31:10Z

From: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>

Disable MSI until we support it properly.

[ Impact: prevent MSI subsystem from crashing ]

Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
---
arch/x86/xen/apic.c | 3 +++
drivers/pci/pci.h | 2 --
include/linux/pci.h | 6 ++++++
3 files changed, 9 insertions(+), 2 deletions(-)

diff --git a/arch/x86/xen/apic.c b/arch/x86/xen/apic.c
index 35a8af7..fece57a 100644
--- a/arch/x86/xen/apic.c
+++ b/arch/x86/xen/apic.c
@@ -1,6 +1,7 @@
#include <linux/kernel.h>
#include <linux/threads.h>
#include <linux/bitmap.h>
+#include <linux/pci.h>

#include <asm/io_apic.h>
#include <asm/acpi.h>
@@ -54,6 +55,8 @@ void xen_init_apic(void)
if (!xen_initial_domain())
return;

+ pci_no_msi();
+
set_io_apic_ops(&xen_ioapic_ops);

#ifdef CONFIG_ACPI
diff --git a/drivers/pci/pci.h b/drivers/pci/pci.h
index d03f6b9..79ada7b 100644
--- a/drivers/pci/pci.h
+++ b/drivers/pci/pci.h
@@ -111,10 +111,8 @@ extern struct rw_semaphore pci_bus_sem;
extern unsigned int pci_pm_d3_delay;

#ifdef CONFIG_PCI_MSI
-void pci_no_msi(void);
extern void pci_msi_init_pci_dev(struct pci_dev *dev);
#else
-static inline void pci_no_msi(void) { }
static inline void pci_msi_init_pci_dev(struct pci_dev *dev) { }
#endif

diff --git a/include/linux/pci.h b/include/linux/pci.h
index 72698d8..724d030 100644
--- a/include/linux/pci.h
+++ b/include/linux/pci.h
@@ -1253,5 +1253,11 @@ static inline irqreturn_t pci_sriov_migration(struct pci_dev *dev)
}
#endif

+#ifdef CONFIG_PCI_MSI
+void pci_no_msi(void);
+#else
+static inline void pci_no_msi(void) { }
+#endif
+
#endif /* __KERNEL__ */
#endif /* LINUX_PCI_H */
--
1.6.0.6