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[Xen-devel] Questions about writing to GCMD_REG in iommu.c
| To: | xen-devel@xxxxxxxxxxxxxxxxxxx |
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| Subject: | [Xen-devel] Questions about writing to GCMD_REG in iommu.c |
| From: | "Neo Jia" <neojia@xxxxxxxxx> |
| Date: | Sun, 13 Jul 2008 02:07:28 -0700 |
| Delivery-date: | Sun, 13 Jul 2008 02:07:50 -0700 |
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hi, I am reading through the code of writing GCMD_REG in iommu.c for VT-d on xen-unstable tip. According to the Intel VT-d spec. it looks that we have to make sure that only one bit of this register is modified at one time with one register write. But the current code doesn't do that kind of checking, right? Thanks, Neo -- I would remember that if researchers were not ambitious probably today we haven't the technology we are using! _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-devel |
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