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| author | Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> | 2011-06-06 12:22:23 -0400 |
|---|---|---|
| committer | Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> | 2011-07-11 13:19:26 -0400 |
| commit | 996c34aee3525c0ef91052af0e425e87d83ba6e0 (patch) | |
| tree | 9b6d93309b8c7d45f4b18b01ccd9c737c6bda55c /arch/x86/pci/xen.c | |
| parent | fef6e26208879f76bada77c11c80d56ebacb32e4 (diff) | |
| download | linux-0-day-996c34aee3525c0ef91052af0e425e87d83ba6e0.tar.gz linux-0-day-996c34aee3525c0ef91052af0e425e87d83ba6e0.tar.xz | |
xen/pci: Update comments and fix empty spaces.
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@oracle.com>
Diffstat (limited to 'arch/x86/pci/xen.c')
| -rw-r--r-- | 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 ba4077b730473..76b39804413ce 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@epoch.ncsc.mil> + * Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> + * Stefano Stabellini <stefano.stabellini@eu.citrix.com> */ #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); |