On 19/03/20 17:18, Ashish Kalra wrote: >>> For the second case, we have been discussing this internally, >>> and one option is to extend the KVM capabilites/feature bits to check for this ? >> You could extend the hypercall to completely block live migration (e.g. >> a0=a1=~0, a2=0 to unblock or 1 to block). The KVM_GET_PAGE_ENC_BITMAP >> ioctl can also return the blocked/unblocked state. >> > Currently i have added a new KVM para feature > "KVM_FEATURE_SEV_LIVE_MIGRATION" to indicate host support for the SEV > live migration feature and a custom KVM MSR "MSR_KVM_SEV_LIVE_MIG_EN" > for the guest to enable SEV live migration. The MSR also has other > flags for future SEV live migration extensions. Ok, that would be fine too. Thanks! Paolo
