Displaying 7 results from an estimated 7 matches for "track_srcu".
2020 Jul 21
0
[PATCH v9 34/84] KVM: x86: page_track: add support for preread, prewrite and preexec
...int bytes)
+{
+ struct kvm_page_track_notifier_head *head;
+ struct kvm_page_track_notifier_node *n;
+ int idx;
+ bool ret = true;
+
+ head = &vcpu->kvm->arch.track_notifier_head;
+
+ if (hlist_empty(&head->track_notifier_list))
+ return ret;
+
+ idx = srcu_read_lock(&head->track_srcu);
+ hlist_for_each_entry_rcu(n, &head->track_notifier_list, node)
+ if (n->track_preread)
+ if (!n->track_preread(vcpu, gpa, gva, bytes, n))
+ ret = false;
+ srcu_read_unlock(&head->track_srcu, idx);
+ return ret;
+}
+
+/*
+ * Notify the node that a write access is about t...
2020 Feb 07
0
[RFC PATCH v7 31/78] KVM: x86: page track: add track_create_slot() callback
...i < KVM_PAGE_TRACK_MAX; i++) {
@@ -45,6 +48,17 @@ int kvm_page_track_create_memslot(struct kvm_memory_slot *slot,
goto track_free;
}
+ head = &kvm->arch.track_notifier_head;
+
+ if (hlist_empty(&head->track_notifier_list))
+ return 0;
+
+ idx = srcu_read_lock(&head->track_srcu);
+ hlist_for_each_entry_rcu(n, &head->track_notifier_list, node)
+ if (n->track_create_slot)
+ n->track_create_slot(kvm, slot, npages, n);
+ srcu_read_unlock(&head->track_srcu, idx);
+
return 0;
track_free:
diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
index 0dd4...
2020 Feb 07
0
[RFC PATCH v7 30/78] KVM: x86: page track: provide all page tracking hooks with the guest virtual address
...(struct kvm_vcpu *vcpu, gpa_t gpa, gva_t gva,
+ const u8 *new, int bytes)
{
struct kvm_page_track_notifier_head *head;
struct kvm_page_track_notifier_node *n;
@@ -235,7 +235,7 @@ void kvm_page_track_write(struct kvm_vcpu *vcpu, gpa_t gpa, const u8 *new,
idx = srcu_read_lock(&head->track_srcu);
hlist_for_each_entry_rcu(n, &head->track_notifier_list, node)
if (n->track_write)
- n->track_write(vcpu, gpa, new, bytes, n);
+ n->track_write(vcpu, gpa, gva, new, bytes, n);
srcu_read_unlock(&head->track_srcu, idx);
}
diff --git a/arch/x86/kvm/x86.c b/arch/x8...
2020 Feb 07
78
[RFC PATCH v7 00/78] 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
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
2019 Aug 09
117
[RFC PATCH v6 00/92] 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 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
2019 Aug 09
117
[RFC PATCH v6 00/92] 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 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