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| author | Stefano Stabellini <stefano.stabellini@eu.citrix.com> | 2010-06-24 18:50:18 +0200 |
|---|---|---|
| committer | Stefano Stabellini <stefano.stabellini@eu.citrix.com> | 2010-10-22 22:25:42 +0200 |
| commit | 3942b740e5183caad47a4a3fcb37a4509ce7af83 (patch) | |
| tree | 7051ecaaca2eadbc68743b4697add53f64d9401d /drivers/xen | |
| parent | xen: add xen hvm acpi_register_gsi variant (diff) | |
| download | linux-3942b740e5183caad47a4a3fcb37a4509ce7af83.tar.xz 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 'drivers/xen')
| -rw-r--r-- | drivers/xen/events.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/drivers/xen/events.c b/drivers/xen/events.c index 239b011ef56f..32269bcbd88c 100644 --- a/drivers/xen/events.c +++ b/drivers/xen/events.c @@ -623,7 +623,8 @@ int xen_map_pirq_gsi(unsigned pirq, unsigned gsi, int shareable, char *name) /* If we are a PV guest, we don't have GSIs (no ACPI passed). Therefore * we are using the !xen_initial_domain() to drop in the function.*/ - if (identity_mapped_irq(gsi) || !xen_initial_domain()) { + if (identity_mapped_irq(gsi) || (!xen_initial_domain() && + xen_pv_domain())) { irq = gsi; irq_alloc_desc_at(irq, 0); } else @@ -1397,6 +1398,9 @@ void __init xen_init_IRQ(void) if (xen_hvm_domain()) { xen_callback_vector(); native_init_IRQ(); + /* pci_xen_hvm_init must be called after native_init_IRQ so that + * __acpi_register_gsi can point at the right function */ + pci_xen_hvm_init(); } else { irq_ctx_init(smp_processor_id()); } |