Introduce CONFIG_XEN_PVHVM compile option
This patch introduce a CONFIG_XEN_PVHVM compile time option to
enable/disable Xen PV on HVM support.
Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
diff --git a/drivers/xen/Kconfig b/drivers/xen/Kconfig
index 8f84b10..0a88269 100644
--- a/drivers/xen/Kconfig
+++ b/drivers/xen/Kconfig
@@ -64,7 +64,7 @@
config XEN_PLATFORM_PCI
tristate "xen platform pci device driver"
- depends on XEN
+ depends on XEN_PVHVM
default m
help
Driver for the Xen PCI Platform device: it is responsible for
diff --git a/drivers/xen/events.c b/drivers/xen/events.c
index b5a254e..5e1f348 100644
--- a/drivers/xen/events.c
+++ b/drivers/xen/events.c
@@ -973,6 +973,7 @@
}
EXPORT_SYMBOL_GPL(xen_set_callback_via);
+#ifdef CONFIG_XEN_PVHVM
/* Vector callbacks are better than PCI interrupts to receive event
* channel notifications because we can receive vector callbacks on any
* vcpu and we don't need PCI support or APIC interactions. */
@@ -996,6 +997,9 @@
alloc_intr_gate(XEN_HVM_EVTCHN_CALLBACK, xen_hvm_callback_vector);
}
}
+#else
+void xen_callback_vector(void) {}
+#endif
void __init xen_init_IRQ(void)
{