On Wed, 2017-10-11 at 00:21 +1100, David Gibson wrote: > In order to prevent the guest from forcing the allocation of large amounts > of qemu memory (or host kernel memory, in the case of KVM HV), we limit > the size of Hashed Page Table (HPT) it is allowed to allocated, based on > its RAM size. > > However, the current calculation is not correct: it only adds up the size > of plugged memory, ignoring the base memory size. This patch corrects it. > > While we're there, use get_plugged_memory_size() instead of directly > calling pc_existing_dimms_capacity(). The only difference is that it > will abort on failure, which is right: a failure here indicates something > wrong within qemu.
Does this change invalidate in any way the calculation performed by libvirt to figure out the memory locking limit for guests? -- Andrea Bolognani / Red Hat / Virtualization
