Displaying 4 results from an estimated 4 matches for "kvmi_always_allowed_commands".
2020 Jul 21
0
[PATCH v9 42/84] KVM: introspection: add KVMI_VM_CHECK_COMMAND and KVMI_VM_CHECK_EVENT
...--git a/virt/kvm/introspection/kvmi.c b/virt/kvm/introspection/kvmi.c
index c44aa49dc6b5..f5ca49167f70 100644
--- a/virt/kvm/introspection/kvmi.c
+++ b/virt/kvm/introspection/kvmi.c
@@ -12,6 +12,7 @@
#define KVMI_MSG_SIZE_ALLOC (sizeof(struct kvmi_msg_hdr) + KVMI_MSG_SIZE)
static DECLARE_BITMAP(Kvmi_always_allowed_commands, KVMI_NUM_COMMANDS);
+static DECLARE_BITMAP(Kvmi_known_events, KVMI_NUM_EVENTS);
static struct kmem_cache *msg_cache;
@@ -51,15 +52,28 @@ bool kvmi_is_command_allowed(struct kvm_introspection *kvmi, u16 id)
return id < KVMI_NUM_COMMANDS && test_bit(id, kvmi->cmd_allow_mask);
}...
2020 Jul 21
0
[PATCH v9 44/84] KVM: introspection: add KVMI_EVENT_UNHOOK
...get_info();
+ test_event_unhook(vm);
unhook_introspection(vm);
}
diff --git a/virt/kvm/introspection/kvmi.c b/virt/kvm/introspection/kvmi.c
index f5ca49167f70..f128b1407c84 100644
--- a/virt/kvm/introspection/kvmi.c
+++ b/virt/kvm/introspection/kvmi.c
@@ -13,6 +13,8 @@
static DECLARE_BITMAP(Kvmi_always_allowed_commands, KVMI_NUM_COMMANDS);
static DECLARE_BITMAP(Kvmi_known_events, KVMI_NUM_EVENTS);
+static DECLARE_BITMAP(Kvmi_known_vm_events, KVMI_NUM_EVENTS);
+static DECLARE_BITMAP(Kvmi_known_vcpu_events, KVMI_NUM_EVENTS);
static struct kmem_cache *msg_cache;
@@ -67,7 +69,13 @@ static void setup_always_allo...
2020 Jul 21
0
[PATCH v9 45/84] KVM: introspection: add KVMI_VM_CONTROL_EVENTS
...id)
+{
+ return id < KVMI_NUM_EVENTS && test_bit(id, Kvmi_known_vm_events);
+}
+
+static bool is_vm_event_enabled(struct kvm_introspection *kvmi, int event)
+{
+ return test_bit(event, kvmi->vm_event_enable_mask);
+}
+
static void setup_always_allowed_commands(void)
{
bitmap_zero(Kvmi_always_allowed_commands, KVMI_NUM_COMMANDS);
@@ -100,6 +110,7 @@ static void free_kvmi(struct kvm *kvm)
{
bitmap_free(kvm->kvmi->cmd_allow_mask);
bitmap_free(kvm->kvmi->event_allow_mask);
+ bitmap_free(kvm->kvmi->vm_event_enable_mask);
kfree(kvm->kvmi);
kvm->kvmi = NULL;
@@ -116,9 +127,1...
2020 Jul 21
87
[PATCH v9 00/84] VM introspection
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