Messages in this thread | | | Date | Tue, 22 Nov 2005 18:14:56 +0200 | From | Avi Kivity <> | Subject | Re: [RFC] Small PCI core patch |
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Jeff Garzik wrote:
>On Tue, Nov 22, 2005 at 05:46:41PM +0200, Avi Kivity wrote: > > >>4) Write a translation layer (for xorg or the kernel) that can load >>Windows drivers. Use binary translation for non-x86. Hope the APIs are >>not patented. >> >> > >Give up all hope of ever diagnosing or fixing a crash. > >Welcome to Windows instability, circa 1995. > > > You exaggerate. Windows drivers work well enough in Windows (or so I presume). One just has to implement the environment these drivers expect, very carefully.
For the untrusting, options do remain:
- run the driver in userspace (if it's a xorg driver, in a separate process) so that all outputs can be validated - use binary translation even on x86 and validate all memory and I/O accesses (like valgrind, but hopefully faster)
It's still possible for the driver to dma stuff where it shouldn't. Maybe IOMMU games (where available) can help. But I seriously doubt it will be that bad.
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