search for: invalid_list

...vm/mmu/mmu.c +++ b/arch/x86/kvm/mmu/mmu.c @@ -6166,7 +6166,7 @@ void kvm_mmu_slot_set_dirty(struct kvm *kvm, } EXPORT_SYMBOL_GPL(kvm_mmu_slot_set_dirty); -void kvm_mmu_zap_all(struct kvm *kvm) +void kvm_mmu_zap_all(struct kvm *kvm, u16 view_mask) { struct kvm_mmu_page *sp, *node; LIST_HEAD(invalid_list); @@ -6175,6 +6175,8 @@ void kvm_mmu_zap_all(struct kvm *kvm) spin_lock(&kvm->mmu_lock); restart: list_for_each_entry_safe(sp, node, &kvm->arch.active_mmu_pages, link) { + if (!test_bit(sp->view, (unsigned long *)&view_mask)) + continue; if (sp->role.invalid &...

...u_free_roots(struct kvm_vcpu *vcpu, struct kvm_mmu *mmu, if (free_active_root) { if (mmu->shadow_root_level >= PT64_ROOT_4LEVEL && (mmu->root_level >= PT64_ROOT_4LEVEL || mmu->direct_map)) { - mmu_free_root_page(vcpu->kvm, &mmu->root_hpa, - &invalid_list); + for (i = 0; i < KVM_MAX_EPT_VIEWS; i++) + mmu_free_root_page(vcpu->kvm, + mmu->root_hpa_altviews + i, + &invalid_list); + mmu->root_hpa = INVALID_PAGE; } else { for (i = 0; i < 4; ++i) if (mmu->pae_root[i] != 0) @@ -3821,9 +3824,10 @@ sta...

...--git a/arch/x86/kvm/mmu/mmu.c b/arch/x86/kvm/mmu/mmu.c index 97766f34910d..f3ba4d0452c9 100644 --- a/arch/x86/kvm/mmu/mmu.c +++ b/arch/x86/kvm/mmu/mmu.c @@ -2573,6 +2573,7 @@ static struct kvm_mmu_page *kvm_mmu_get_page(struct kvm_vcpu *vcpu, bool flush = false; int collisions = 0; LIST_HEAD(invalid_list); + unsigned int pg_hash; role = vcpu->arch.mmu->mmu_role.base; role.level = level; @@ -2623,8 +2624,9 @@ static struct kvm_mmu_page *kvm_mmu_get_page(struct kvm_vcpu *vcpu, sp->gfn = gfn; sp->role = role; + pg_hash = kvm_page_table_hashfn(gfn); hlist_add_head(&sp->...

This patch series is based on the VM introspection patches (https://lore.kernel.org/kvm/20200721210922.7646-1-alazar at bitdefender.com/), extending the introspection API with EPT Views and Virtualization Exceptions (#VE) support. The purpose of this series is to get an initial feedback and to see if we are on the right track, especially because the changes made to add the EPT views are not small

The KVM introspection subsystem provides a facility for applications running on the host or in a separate VM, to control the execution of other VM-s (pause, resume, shutdown), query the state of the vCPUs (GPRs, MSRs etc.), alter the page access bits in the shadow page tables (only for the hardware backed ones, eg. Intel's EPT) and receive notifications when events of interest have taken place

The KVM introspection subsystem provides a facility for applications running on the host or in a separate VM, to control the execution of other VM-s (pause, resume, shutdown), query the state of the vCPUs (GPRs, MSRs etc.), alter the page access bits in the shadow page tables (only for the hardware backed ones, eg. Intel's EPT) and receive notifications when events of interest have taken place