> -----Original Message----- > From: Paolo Bonzini [mailto:paolo.bonz...@gmail.com] On Behalf Of Paolo > Bonzini > Sent: Tuesday, November 19, 2013 1:14 AM > To: Jiang, Yunhong > Cc: qemu-devel@nongnu.org; da...@gibson.dropbear.id.au; > eduard.munte...@linux360.ro > Subject: Re: Are there any IOMMU emulation in QEMU for x86 platform > > Il 19/11/2013 07:34, Jiang, Yunhong ha scritto: > > Hi, all > > I noticed there are several patchset has been sent out about IOMMU > emulation like > > http://lists.gnu.org/archive/html/qemu-devel/2011-10/msg03764.html, > > http://lists.gnu.org/archive/html/qemu-devel/2011-01/msg03196.html . > > Also I noticed that PPC platform has IOMMU emulation support in QEMU > > already. Are there any plan to support IOMMU emulation in QEMU for > x86 now? > > Not that I know of. Of course, patches are welcome.
Paolo, thanks for reply. --jyh > > > And also, does it requires the real host platform have the IOMMU to > support the QEMU IOMMU emulation? Or it will be a purely software > emulation? > > For emulated devices it could be purely software. Nested device > assignment would require a host IOMMU, and would require the host > IOMMU > driver to do some kind of shadow-paging. > > Paolo
