Re: [RFC V2 PATCH 8/12] UIO/Hyper-V: Not load UIO HV driver in the isolation VM.

2021-04-14 Thread Greg KH
On Wed, Apr 14, 2021 at 11:20:19PM +0800, Tianyu Lan wrote: > Hi Greg: > Thanks for your review. > > On 4/14/2021 12:00 AM, Greg KH wrote: > > On Tue, Apr 13, 2021 at 11:22:13AM -0400, Tianyu Lan wrote: > > > From: Tianyu Lan > > > > > > UIO HV driver should not load in the isolation VM fo

Re: [RFC V2 PATCH 8/12] UIO/Hyper-V: Not load UIO HV driver in the isolation VM.

2021-04-14 Thread Tianyu Lan
Hi Greg: Thanks for your review. On 4/14/2021 12:00 AM, Greg KH wrote: On Tue, Apr 13, 2021 at 11:22:13AM -0400, Tianyu Lan wrote: From: Tianyu Lan UIO HV driver should not load in the isolation VM for security reason. Why? I need a lot more excuse than that. The reason is that r

Re: [RFC V2 PATCH 8/12] UIO/Hyper-V: Not load UIO HV driver in the isolation VM.

2021-04-13 Thread Greg KH
On Tue, Apr 13, 2021 at 11:22:13AM -0400, Tianyu Lan wrote: > From: Tianyu Lan > > UIO HV driver should not load in the isolation VM for security reason. Why? I need a lot more excuse than that. Why would the vm allow UIO devices to bind to it if it was not possible? Shouldn't the VM be handli

Re: [RFC V2 PATCH 8/12] UIO/Hyper-V: Not load UIO HV driver in the isolation VM.

2021-04-13 Thread Greg KH
On Tue, Apr 13, 2021 at 11:22:13AM -0400, Tianyu Lan wrote: > From: Tianyu Lan > > UIO HV driver should not load in the isolation VM for security reason. > Return ENOTSUPP in the hv_uio_probe() in the isolation VM. > > Signed-off-by: Tianyu Lan > --- > drivers/uio/uio_hv_generic.c | 5 + >

[RFC V2 PATCH 8/12] UIO/Hyper-V: Not load UIO HV driver in the isolation VM.

2021-04-13 Thread Tianyu Lan
From: Tianyu Lan UIO HV driver should not load in the isolation VM for security reason. Return ENOTSUPP in the hv_uio_probe() in the isolation VM. Signed-off-by: Tianyu Lan --- drivers/uio/uio_hv_generic.c | 5 + 1 file changed, 5 insertions(+) diff --git a/drivers/uio/uio_hv_generic.c b/