Zhai, Edwin
2009-Sep-25 07:11 UTC
[Xen-devel] [PATCH] [IOMMU] enlarge intr remapping table
This patch enlarges interrupt remapping table to fix the out-of range table access when using many multiple-function PCI devices. Signed-Off-By: Zhai Edwin <edwin.zhai@intel.com> -- best rgds, edwin _______________________________________________ Xen-devel mailing list Xen-devel@lists.xensource.com http://lists.xensource.com/xen-devel
Jan Beulich
2009-Sep-25 08:04 UTC
Re: [Xen-devel] [PATCH] [IOMMU] enlarge intr remapping table
>>> "Zhai, Edwin" <edwin.zhai@intel.com> 25.09.09 09:11 >>> >This patch enlarges interrupt remapping table to fix the out-of range >table access when using many multiple-function PCI devices. > >Signed-Off-By: Zhai Edwin <edwin.zhai@intel.com>This can''t be working: Wherever iremap_maddr gets mapped, only a single page is being mapped. Jan _______________________________________________ Xen-devel mailing list Xen-devel@lists.xensource.com http://lists.xensource.com/xen-devel
Zhai, Edwin
2009-Sep-25 08:36 UTC
Re: [Xen-devel] [PATCH] [IOMMU] enlarge intr remapping table
Jan Beulich wrote:>>>> "Zhai, Edwin" <edwin.zhai@intel.com> 25.09.09 09:11 >>> >>>> >> This patch enlarges interrupt remapping table to fix the out-of range >> table access when using many multiple-function PCI devices. >> >> Signed-Off-By: Zhai Edwin <edwin.zhai@intel.com> >> > > This can''t be working: Wherever iremap_maddr gets mapped, only a single > page is being mapped. >Is there any API can be used to map a series of continuous pages?> Jan > >-- best rgds, edwin _______________________________________________ Xen-devel mailing list Xen-devel@lists.xensource.com http://lists.xensource.com/xen-devel
Jan Beulich
2009-Sep-25 08:43 UTC
Re: [Xen-devel] [PATCH] [IOMMU] enlarge intr remapping table
>>> "Zhai, Edwin" <edwin.zhai@intel.com> 25.09.09 10:36 >>> >Is there any API can be used to map a series of continuous pages?No, you''ll have to figure which one you really need. And even if there was, you surely wouldn''t want to map all 256 at one time. Jan _______________________________________________ Xen-devel mailing list Xen-devel@lists.xensource.com http://lists.xensource.com/xen-devel
Zhai, Edwin
2009-Sep-25 08:52 UTC
Re: [Xen-devel] [PATCH] [IOMMU] enlarge intr remapping table
Thanks, I''ll modify my patch. Jan Beulich wrote:>>>> "Zhai, Edwin" <edwin.zhai@intel.com> 25.09.09 10:36 >>> >>>> >> Is there any API can be used to map a series of continuous pages? >> > > No, you''ll have to figure which one you really need. And even if there > was, you surely wouldn''t want to map all 256 at one time. > > Jan > >-- best rgds, edwin _______________________________________________ Xen-devel mailing list Xen-devel@lists.xensource.com http://lists.xensource.com/xen-devel