Hi, On 10/24/2018 04:54 PM, Juergen Gross wrote: > This patch series adds support for booting Linux as PVH guest. > > Similar to i386/xen and x86_64/xen platforms the new i386/xenpvh > platform grub is booted as a standalone image directly by Xen. > > For booting Linux kernel it is using the standard linux kernel > loader. The only modification of the linux loader is to pass the > ACPI RSDP address via boot parameters to the kernel, as that table > might not be located at the usual physical address just below 1MB. > > The related Linux kernel patches have been accepted in the merge > window for post 4.19 (4.20 or 5.0, whatever it will be called). > > Changes in V3: > - addressed lots of comments, most by Daniel and some by Roger, > details are mentioned in the individual patches > > [...]
Thanks for the hard work. FWIW, a test report from an end user. I used the following for testing, which is derived from the instructions Juergen provided earlier this year. Maybe it's useful for someone else who wants to test. git clone https://git.savannah.gnu.org/git/grub.git git checkout -b xen_pvh [apply patches from emails] ./autogen.sh rm -rf knorrie/build mkdir -p knorrie/build cd knorrie/build ../../configure TARGET_LDFLAGS=-static --target=i386 --with-platform=xen_pvh make I just symlinked the test-kernel to vmlinuz-pvh here, so that I could easily boot back into the regular kernel with pvgrub2, which is hardcoded to look at /vmlinuz in my case (no grub with menu in the domU etc). cat <<EOF >grub.cfg root='(xen/xvda)' insmod xzio insmod gzio insmod btrfs insmod ext2 echo 'Loading Linux ...' linux /vmlinuz-pvh root=/dev/xvda ro elevator=noop console=hvc0 echo 'Loading initial ramdisk ...' initrd /initrd.img-pvh echo 'There we go! ...' boot EOF ./grub-mkstandalone --grub-mkimage=./grub-mkimage -o grub-i386-xen_pvh-fire-ze-missile -O i386-xen_pvh -d grub-core/ "/boot/grub/grub.cfg=./grub.cfg" On the dom0, I have a copy of the config file, changed with: type = 'pvh' kernel = "/test/grub-i386-xen_pvh-fire-ze-missile" [...] Now xl create -c, and it greets me with things like Welcome to GRUB! Loading Linux ... Loading initial ramdisk ... There we go! ... And in the startup-sequence of the domU kernel: [ 0.204361] Booting paravirtualized kernel on Xen PVH I can see all 4 configured cpus, and I can see 8GiB of memory inside, which was not possible with the first series of the patches. So, great success! Hans _______________________________________________ Xen-devel mailing list Xen-devel@lists.xenproject.org https://lists.xenproject.org/mailman/listinfo/xen-devel
