On 11/03/2015 12:23, Ian Campbell wrote:
On Wed, 2015-03-11 at 12:15 +0000, Julien Grall wrote:
Hi Jan,
On 11/03/2015 08:53, Jan Beulich wrote:
On 10.03.15 at 23:45, <dgde...@tycho.nsa.gov> wrote:
In order to do static labeling for device passthrough, the nodes in a
device tree need a 32-bit numeric identifier. IO memory uses the MFN,
PCI devices use SBDF, and IRQs and x86 legacy IOs just use the number.
A 32-bit number can't uniquely identify an MMIO MFN.
Isn't 32-bit enough to describe an MFN?
Up to 32+12== 44 bits, yes, but we know there are ARM systems with 48
bit PA out there.
Hmmm... checkpolicy and flask will have to be fixed then.
Regards,
--
Julien Grall
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