On Tue, Jun 30, 2020 at 10:17:36AM +, Wei Liu wrote:
[...]
> > >
> > > If the allocation of the requestor fails during runtime, vmbus_open()
> > > fails too and therefore,
> > > the channel and the requestor will not be created. So, the 2 functions
> > > (next_id, requestor_addr)
> > > will ne
On Tue, Jun 30, 2020 at 10:09:45AM +, Wei Liu wrote:
> On Mon, Jun 29, 2020 at 07:45:00PM -0400, Andres Beltran wrote:
> > On Mon, Jun 29, 2020 at 6:20 PM Wei Liu wrote:
> > >
> > > On Mon, Jun 29, 2020 at 05:51:05PM -0400, Andres Beltran wrote:
> > > > On Mon, Jun 29, 2020 at 4:46 PM Wei Liu
On Mon, Jun 29, 2020 at 07:45:00PM -0400, Andres Beltran wrote:
> On Mon, Jun 29, 2020 at 6:20 PM Wei Liu wrote:
> >
> > On Mon, Jun 29, 2020 at 05:51:05PM -0400, Andres Beltran wrote:
> > > On Mon, Jun 29, 2020 at 4:46 PM Wei Liu wrote:
> > > >
> > > > On Mon, Jun 29, 2020 at 04:02:25PM -0400, A
On Mon, Jun 29, 2020 at 6:20 PM Wei Liu wrote:
>
> On Mon, Jun 29, 2020 at 05:51:05PM -0400, Andres Beltran wrote:
> > On Mon, Jun 29, 2020 at 4:46 PM Wei Liu wrote:
> > >
> > > On Mon, Jun 29, 2020 at 04:02:25PM -0400, Andres Beltran wrote:
> > > > Currently, VMbus drivers use pointers into gues
On Mon, Jun 29, 2020 at 05:51:05PM -0400, Andres Beltran wrote:
> On Mon, Jun 29, 2020 at 4:46 PM Wei Liu wrote:
> >
> > On Mon, Jun 29, 2020 at 04:02:25PM -0400, Andres Beltran wrote:
> > > Currently, VMbus drivers use pointers into guest memory as request IDs
> > > for interactions with Hyper-V.
On Mon, Jun 29, 2020 at 09:56:08PM +, Michael Kelley wrote:
> From: Andres Beltran Sent: Monday, June 29, 2020 2:51 PM
> >
> > On Mon, Jun 29, 2020 at 4:46 PM Wei Liu wrote:
> > >
> > > On Mon, Jun 29, 2020 at 04:02:25PM -0400, Andres Beltran wrote:
> > > > Currently, VMbus drivers use point
On Mon, Jun 29, 2020 at 5:56 PM Michael Kelley wrote:
> I'm not understanding the problem here. Any VMbus driver that uses
> this requestID allocation mechanism must set newchannel->rqstor_size
> to a non-zero value. But if a VMbus driver doesn't use the mechanism,
> then newchannel->rqstor_size
From: Andres Beltran Sent: Monday, June 29, 2020 2:51 PM
>
> On Mon, Jun 29, 2020 at 4:46 PM Wei Liu wrote:
> >
> > On Mon, Jun 29, 2020 at 04:02:25PM -0400, Andres Beltran wrote:
> > > Currently, VMbus drivers use pointers into guest memory as request IDs
> > > for interactions with Hyper-V. To
On Mon, Jun 29, 2020 at 4:46 PM Wei Liu wrote:
>
> On Mon, Jun 29, 2020 at 04:02:25PM -0400, Andres Beltran wrote:
> > Currently, VMbus drivers use pointers into guest memory as request IDs
> > for interactions with Hyper-V. To be more robust in the face of errors
> > or malicious behavior from a
On Mon, Jun 29, 2020 at 04:02:25PM -0400, Andres Beltran wrote:
> Currently, VMbus drivers use pointers into guest memory as request IDs
> for interactions with Hyper-V. To be more robust in the face of errors
> or malicious behavior from a compromised Hyper-V, avoid exposing
> guest memory address
Currently, VMbus drivers use pointers into guest memory as request IDs
for interactions with Hyper-V. To be more robust in the face of errors
or malicious behavior from a compromised Hyper-V, avoid exposing
guest memory addresses to Hyper-V. Also avoid Hyper-V giving back a
bad request ID that is t
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