On 2016/1/5 5:42, Benjamin Herrenschmidt wrote:
On Mon, 2016-01-04 at 14:07 -0700, Alex Williamson wrote:
On Thu, 2015-12-31 at 16:50 +0800, Yongji Xie wrote:
Current vfio-pci implementation disallows to mmap MSI-X
table in case that user get to touch this directly.
However, EEH mechanism can
On Thu, 2015-12-31 at 16:50 +0800, Yongji Xie wrote:
> Current vfio-pci implementation disallows to mmap MSI-X
> table in case that user get to touch this directly.
>
> However, EEH mechanism can ensure that a given pci device
> can only shoot the MSIs assigned for its PE. So we think
> it's safe
On Mon, 2016-01-04 at 14:07 -0700, Alex Williamson wrote:
> On Thu, 2015-12-31 at 16:50 +0800, Yongji Xie wrote:
> > Current vfio-pci implementation disallows to mmap MSI-X
> > table in case that user get to touch this directly.
> >
> > However, EEH mechanism can ensure that a given pci device
>
Current vfio-pci implementation disallows to mmap MSI-X
table in case that user get to touch this directly.
However, EEH mechanism can ensure that a given pci device
can only shoot the MSIs assigned for its PE. So we think
it's safe to expose the MSI-X table to userspace because
the exposed MSI-X
