Re: [PATCH v1 1/8] virtio: Force only split mode with protected guest

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

 




在 2021/6/3 下午9:55, Andi Kleen 写道:

Ok, but what I meant is this, if we don't read from the descriptor ring, and validate all the other metadata supplied by the device (used id and len). Then there should be no way for the device to suppress the dma flags to write to the indirect descriptor table.

Or do you have an example how it can do that?

I don't. If you can validate everything it's probably ok

The only drawback is even more code to audit and test.

-Andi



Ok, then I'm going to post a formal series, please have a look and we can start from there.

Thanks

_______________________________________________
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