On 12/5/18 9:18 AM, Razvan Cojocaru wrote: > When an new altp2m view is created very early on guest boot, the > display will freeze (although the guest will run normally). This > may also happen on resizing the display. The reason is the way > Xen currently (mis)handles logdirty VGA: it intentionally > misconfigures VGA pages so that they will fault. > > The problem is that it only does this in the host p2m. Once we > switch to a new altp2m, the misconfigured entries will no longer > fault, so the display will not be updated. > > This patch: > * updates ept_handle_misconfig() to use the active altp2m instead > of the hostp2m; > * modifies p2m_change_entry_type_global(), > p2m_memory_type_changed(), p2m_change_type_range() and > p2m_finish_type_change() to propagate their changes to all > valid altp2ms. > > With the introduction of altp2m fields in p2m_memory_type_changed() > the whole function has been put under CONFIG_HVM. > > Suggested-by: George Dunlap <george.dun...@citrix.com> > Signed-off-by: Razvan Cojocaru <rcojoc...@bitdefender.com> > Tested-by: Tamas K Lengyel <ta...@tklengyel.com>
Acked-by: George Dunlap <george.dun...@citrix.com> _______________________________________________ Xen-devel mailing list Xen-devel@lists.xenproject.org https://lists.xenproject.org/mailman/listinfo/xen-devel
