xen: add xen hvm acpi_register_gsi variant

Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Reviewed-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Acked-by: Rafael J. Wysocki <rjw@sisk.pl>

diff --git a/arch/x86/include/asm/acpi.h b/arch/x86/include/asm/acpi.h
index 92091de11113367894501e82c9d3363f05c5232e..55d106b5e31b2ff68f4738cf458a4c9c09eafc7e 100644 (file)
--- a/arch/x86/include/asm/acpi.h
+++ b/arch/x86/include/asm/acpi.h
@@ -93,6 +93,9 @@ extern u8 acpi_sci_flags;
 extern int acpi_sci_override_gsi;
 void acpi_pic_sci_set_trigger(unsigned int, u16);
 
+extern int (*__acpi_register_gsi)(struct device *dev, u32 gsi,
+                                 int trigger, int polarity);
+
 static inline void disable_acpi(void)
 {
        acpi_disabled = 1;

diff --git a/arch/x86/kernel/acpi/boot.c b/arch/x86/kernel/acpi/boot.c
index 031f0c23891646880135166c8dc051e07ae5f08a..71232b941b6c9c6409fd14e9479f3d1625eeaeb0 100644 (file)
--- a/arch/x86/kernel/acpi/boot.c
+++ b/arch/x86/kernel/acpi/boot.c
@@ -537,7 +537,8 @@ static int acpi_register_gsi_ioapic(struct device *dev, u32 gsi,
        return gsi;
 }
 
-static int (*__acpi_register_gsi)(struct device *dev, u32 gsi, int trigger, int polarity) = acpi_register_gsi_pic;
+int (*__acpi_register_gsi)(struct device *dev, u32 gsi,
+                          int trigger, int polarity) = acpi_register_gsi_pic;
 
 /*
  * success: return IRQ number (>=0)

diff --git a/arch/x86/pci/xen.c b/arch/x86/pci/xen.c
index 08e3cdccdfa840fa959756564e2595316865ac5e..3a4ab0b4dcca8bb3464c37fd7021ba22034b966d 100644 (file)
--- a/arch/x86/pci/xen.c
+++ b/arch/x86/pci/xen.c
@@ -53,6 +53,12 @@ static int xen_hvm_register_pirq(u32 gsi, int triggering)
 
        return irq;
 }
+
+static int acpi_register_gsi_xen_hvm(struct device *dev, u32 gsi,
+                                int trigger, int polarity)
+{
+       return xen_hvm_register_pirq(gsi, trigger);
+}
 #endif
 
 #if defined(CONFIG_PCI_MSI)