search for: kvm_page_track_is_act

...rch/x86/kvm/mmu.c > @@ -2660,6 +2660,9 @@ static void clear_sp_write_flooding_count(u64 *spte) > static unsigned int kvm_mmu_page_track_acc(struct kvm_vcpu *vcpu, gfn_t gfn, > unsigned int acc) > { > + if (!kvmi_tracked_gfn(vcpu, gfn)) > + return acc; > + > if (kvm_page_track_is_active(vcpu, gfn, KVM_PAGE_TRACK_PREREAD)) > acc &= ~ACC_USER_MASK; > if (kvm_page_track_is_active(vcpu, gfn, KVM_PAGE_TRACK_PREWRITE) || > If this patch is always needed, then the function should be named something like kvm_mmu_apply_introspection_access and kvmi_tracked_gfn should...

...100644 --- a/arch/x86/kvm/mmu.c +++ b/arch/x86/kvm/mmu.c @@ -2660,6 +2660,9 @@ static void clear_sp_write_flooding_count(u64 *spte) static unsigned int kvm_mmu_page_track_acc(struct kvm_vcpu *vcpu, gfn_t gfn, unsigned int acc) { + if (!kvmi_tracked_gfn(vcpu, gfn)) + return acc; + if (kvm_page_track_is_active(vcpu, gfn, KVM_PAGE_TRACK_PREREAD)) acc &= ~ACC_USER_MASK; if (kvm_page_track_is_active(vcpu, gfn, KVM_PAGE_TRACK_PREWRITE) ||

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 VMs (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

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 VMs (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