Re: [PATCH vfio 10/11] vfio/virtio: Expose admin commands over virtio device

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



On Wed, Oct 11, 2023 at 09:18:49AM -0300, Jason Gunthorpe wrote:
> The simple way to be sure is to never touch the PCI function that has
> DMA assigned to a VM from the hypervisor, except through config space.

What makes config space different that it's safe though?
Isn't this more of a "we can't avoid touching config space" than
that it's safe? The line doesn't look that bright to me -
if there's e.g. a memory area designed explicitly for
hypervisor to poke at, that seems fine.

-- 
MST

_______________________________________________
Virtualization mailing list
Virtualization@xxxxxxxxxxxxxxxxxxxxxxxxxx
https://lists.linuxfoundation.org/mailman/listinfo/virtualization



[Index of Archives]     [KVM Development]     [Libvirt Development]     [Libvirt Users]     [CentOS Virtualization]     [Netdev]     [Ethernet Bridging]     [Linux Wireless]     [Kernel Newbies]     [Security]     [Linux for Hams]     [Netfilter]     [Bugtraq]     [Yosemite Forum]     [MIPS Linux]     [ARM Linux]     [Linux RAID]     [Linux Admin]     [Samba]

  Powered by Linux