diff options
| author | Stefano Stabellini | 2010-06-24 18:50:18 +0200 |
|---|---|---|
| committer | Stefano Stabellini | 2010-10-22 22:25:42 +0200 |
| commit | 3942b740e5183caad47a4a3fcb37a4509ce7af83 (patch) | |
| tree | 7051ecaaca2eadbc68743b4697add53f64d9401d /arch/x86/pci | |
| parent | xen: add xen hvm acpi_register_gsi variant (diff) | |
| download | kernel-qcow2-linux-3942b740e5183caad47a4a3fcb37a4509ce7af83.tar.gz kernel-qcow2-linux-3942b740e5183caad47a4a3fcb37a4509ce7af83.tar.xz kernel-qcow2-linux-3942b740e5183caad47a4a3fcb37a4509ce7af83.zip | |
xen: support GSI -> pirq remapping in PV on HVM guests
Disable pcifront when running on HVM: it is meant to be used with pv
guests that don't have PCI bus.
Use acpi_register_gsi_xen_hvm to remap GSIs into pirqs.
Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Reviewed-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Diffstat (limited to 'arch/x86/pci')
| -rw-r--r-- | arch/x86/pci/xen.c | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/arch/x86/pci/xen.c b/arch/x86/pci/xen.c index 3a4ab0b4dcca..d5284c491aef 100644 --- a/arch/x86/pci/xen.c +++ b/arch/x86/pci/xen.c @@ -14,6 +14,7 @@ #include <asm/xen/hypervisor.h> +#include <xen/features.h> #include <xen/events.h> #include <asm/xen/pci.h> @@ -184,3 +185,18 @@ int __init pci_xen_init(void) #endif return 0; } + +int __init pci_xen_hvm_init(void) +{ + if (!xen_feature(XENFEAT_hvm_pirqs)) + return 0; + +#ifdef CONFIG_ACPI + /* + * We don't want to change the actual ACPI delivery model, + * just how GSIs get registered. + */ + __acpi_register_gsi = acpi_register_gsi_xen_hvm; +#endif + return 0; +} |