On Thu, Dec 08, 2022 at 04:37:03PM +0800, Xiaoyao Li wrote: > On 12/2/2022 2:13 PM, Chao Peng wrote: > > .. > > > Together with the change, a new config HAVE_KVM_RESTRICTED_MEM is added > > and right now it is selected on X86_64 only. > > > > From the patch implementation, I have no idea why HAVE_KVM_RESTRICTED_MEM is > needed. The reason is we want KVM further controls the feature enabling. An opt-in CONFIG_RESTRICTEDMEM can cause problem if user sets that for unsupported architectures. Here is the original discussion: https://lore.kernel.org/all/YkJLFu98hZOvTSrL@xxxxxxxxxx/ Thanks, Chao
