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freebsd-skq/sys/i386
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Roger Pau Monné 44e06d158a msi: add Xen MSI implementation 
This patch adds support for MSI interrupts when running on Xen. Apart
from adding the Xen related code needed in order to register MSI
interrupts this patch also makes the msi_init function a hook in
init_ops, so different MSI implementations can have different
initialization functions.

Sponsored by: Citrix Systems R&D

xen/interface/physdev.h:
 - Add the MAP_PIRQ_TYPE_MULTI_MSI to map multi-vector MSI to the Xen
   public interface.

x86/include/init.h:
 - Add a hook for setting custom msi_init methods.

amd64/amd64/machdep.c:
i386/i386/machdep.c:
 - Set the default msi_init hook to point to the native MSI
   initialization method.

x86/xen/pv.c:
 - Set the Xen MSI init hook when running as a Xen guest.

x86/x86/local_apic.c:
 - Call the msi_init hook instead of directly calling msi_init.

xen/xen_intr.h:
x86/xen/xen_intr.c:
 - Introduce support for registering/releasing MSI interrupts with
   Xen.
 - The MSI interrupts will use the same PIC as the IO APIC interrupts.

xen/xen_msi.h:
x86/xen/xen_msi.c:
 - Introduce a Xen MSI implementation.

x86/xen/xen_nexus.c:
 - Overwrite the default MSI hooks in the Xen Nexus to use the Xen MSI
   implementation.

x86/xen/xen_pci.c:
 - Introduce a Xen specific PCI bus that inherits from the ACPI PCI
   bus and overwrites the native MSI methods.
 - This is needed because when running under Xen the MSI messages used
   to configure MSI interrupts on PCI devices are written by Xen
   itself.

dev/acpica/acpi_pci.c:
 - Lower the quality of the ACPI PCI bus so the newly introduced Xen
   PCI bus can take over when needed.

conf/files.i386:
conf/files.amd64:
 - Add the newly created files to the build process.
2014-09-30 16:46:45 +00:00
..
acpica Correct a comment brought over from amd64. i386 doesn't use long 2014-08-12 18:22:57 +00:00
bios Pull in r267961 and r267973 again. Fix for issues reported will follow. 2014-06-28 03:56:17 +00:00
conf Add mrsas(4) to GENERIC for i386 and amd64. 2014-09-04 21:06:33 +00:00
i386 msi: add Xen MSI implementation 2014-09-30 16:46:45 +00:00
ibcs2 Update kernel inclusions of capability.h to use capsicum.h instead; some 2014-03-16 10:55:57 +00:00
include MFamd64: Use initializecpu() to set various model-specific registers on 2014-09-10 21:37:47 +00:00
isa Save and restore FPU state across suspend and resume. In earlier revisions 2014-08-30 17:48:38 +00:00
linux Re-gen after r271743 implementing most of 2014-09-18 08:40:00 +00:00
pci Pull in r267961 and r267973 again. Fix for issues reported will follow. 2014-06-28 03:56:17 +00:00
svr4
xbox After r261980, the local ptr variable in xbox_init() is no longer used, 2014-02-16 22:48:36 +00:00
xen MFamd64: Use initializecpu() to set various model-specific registers on 2014-09-10 21:37:47 +00:00
Makefile Delete duplicate tags entry I introduced in -r223901. 2011-07-15 17:27:26 +00:00