5 ms·
Doesn't this one need it as well? I see the shadow mmu
by tryauuum 1mo ago
Doesn't this one need it as well? I see the shadow mmu
- minimaltom 1mo agoRight, but what x86 KVM setup is there in practice that doesnt present a mmu to its guest and hence keep its own track (shadow) of memory mappings?
- Veserv 1mo agoShadow memory mappings are only needed when you do not have hardware virtualization or when doing nested virtualization. From the page: "it can threaten the guest-host isolation of KVM/x86 hosts that accept untrusted guests and expose nested virtualization" That is not to say that it is not a serious vulnerability though.