[Xen-devel] Questions about writing to GCMD_REG in iommu.c

To:	xen-devel@xxxxxxxxxxxxxxxxxxx
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
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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!

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[Xen-devel] Questions about writing to GCMD_REG in iommu.c