On 15/04/2018 23:53, KarimAllah Ahmed wrote: > Guest memory can either be directly managed by the kernel (i.e. have a "struct > page") or they can simply live outside kernel control (i.e. do not have a > "struct page"). KVM mostly support these two modes, except in a few places > where the code seems to assume that guest memory must have a "struct page". > > This patchset introduces a new mapping interface to map guest memory into host > kernel memory which also supports PFN-based memory (i.e. memory without 'struct > page'). It also converts all offending code to this interface or simply > read/write directly from guest memory. > > As far as I can see all offending code is now fixed except the APIC-access page > which I will handle in a seperate patch. I assume the caching will also be a separate patch. It looks good except that I'd squash patches 4 and 9 together. But I'd like a second set of eyes to look at it. Thanks, Paolo