Update the out-dated comment at the beginning of the file.
Also provide the copyrights of folks who have been contributing
to this code lately.
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@xxxxxxxxxx>
---
arch/x86/pci/xen.c | 15 ++++++++-------
1 files changed, 8 insertions(+), 7 deletions(-)
diff --git a/arch/x86/pci/xen.c b/arch/x86/pci/xen.c
index ba4077b..76b3980 100644
--- a/arch/x86/pci/xen.c
+++ b/arch/x86/pci/xen.c
@@ -1,8 +1,13 @@
/*
- * Xen PCI Frontend Stub - puts some "dummy" functions in to the Linux
- * x86 PCI core to support the Xen PCI Frontend
+ * Xen PCI - handle PCI (INTx) and MSI infrastructure calls for PV, HVM and
+ * initial domain support. We also handle the DSDT _PRT callbacks for GSI's
+ * used in HVM and initial domain mode (PV does not parse ACPI, so it has no
+ * concept of GSIs). Under PV we hook under the pnbbios API for IRQs and
+ * 0xcf8 PCI configuration read/write.
*
* Author: Ryan Wilson <hap9@xxxxxxxxxxxxxx>
+ * Konrad Rzeszutek Wilk <konrad.wilk@xxxxxxxxxx>
+ * Stefano Stabellini <stefano.stabellini@xxxxxxxxxxxxx>
*/
#include <linux/module.h>
#include <linux/init.h>
@@ -183,9 +188,6 @@ static int acpi_register_gsi_xen(struct device *dev, u32
gsi,
struct xen_pci_frontend_ops *xen_pci_frontend;
EXPORT_SYMBOL_GPL(xen_pci_frontend);
-/*
- * For MSI interrupts we have to use drivers/xen/event.s functions to
- * allocate an irq_desc and setup the right */
static int xen_setup_msi_irqs(struct pci_dev *dev, int nvec, int type)
{
int irq, ret, i;
@@ -361,7 +363,6 @@ static void xen_teardown_msi_irq(unsigned int irq)
#endif
-
int __init pci_xen_init(void)
{
if (!xen_pv_domain() || xen_initial_domain())
@@ -427,7 +428,7 @@ static __init void xen_setup_acpi_sci(void)
}
trigger = trigger ? ACPI_LEVEL_SENSITIVE : ACPI_EDGE_SENSITIVE;
polarity = polarity ? ACPI_ACTIVE_LOW : ACPI_ACTIVE_HIGH;
-
+
printk(KERN_INFO "xen: sci override: global_irq=%d trigger=%d "
"polarity=%d\n", gsi, trigger, polarity);
--
1.7.4.1
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