On Tue, Dec 02, 2014 at 05:51:48PM +0800, Wang, Yalin wrote: > > -----Original Message----- > > From: Richard W.M. Jones [mailto:rjones@xxxxxxxxxx] > > Sent: Tuesday, December 02, 2014 5:47 PM > > To: Wang, Yalin > > Cc: kvmarm@xxxxxxxxxxxxxxxxxxxxx; Wei Huang > > Subject: Re: arm64: virtio broken in upstream kernel > > > > On Tue, Dec 02, 2014 at 05:45:08PM +0800, Wang, Yalin wrote: > > > > -----Original Message----- > > > > From: Richard W.M. Jones [mailto:rjones@xxxxxxxxxx] > > > > Sent: Monday, December 01, 2014 10:02 PM > > > > To: kvmarm@xxxxxxxxxxxxxxxxxxxxx > > > > Cc: Wang, Yalin; Wei Huang > > > > Subject: Re: arm64: virtio broken in upstream kernel > > > > > > > > OK I fixed it ... > > > > > > > > This patch to qemu fixes the problem for me. I will post it to > > > > qemu-devel shortly. > > > > > > > > Rich. > > > Oh , I see the BUG , > > > It load dtb in the same page with initrd, This patch can fix, I think > > > more better solution is that You can get page size from kernel by > > > sysinfo() system call, Then align most data into PAGE_SIZE, This is > > > good for both 32 / 64 arch . > > > > I guess the problem is that the host might be using 4K pages and the guest > > might be using 64K pages. (Is that possible?) > > > No , I don't think so, > I think you just need align address to the page size of guest kernel, > Then it will work. > > So this is a problem, sysinfo() can't work, > How to get CONFIG_PAGE_SIZE from guest kernel image before > Boot it? Sounds horrible :-( Did you see also my kernel patch? https://lists.cs.columbia.edu/pipermail/kvmarm/2014-December/012567.html This is what I ended up using. Rich. -- Richard Jones, Virtualization Group, Red Hat http://people.redhat.com/~rjones Read my programming and virtualization blog: http://rwmj.wordpress.com virt-p2v converts physical machines to virtual machines. Boot with a live CD or over the network (PXE) and turn machines into KVM guests. http://libguestfs.org/virt-v2v _______________________________________________ kvmarm mailing list kvmarm@xxxxxxxxxxxxxxxxxxxxx https://lists.cs.columbia.edu/mailman/listinfo/kvmarm
