Displaying 6 results from an estimated 6 matches for "intercept_cr3_write".
2020 Jul 21
0
[PATCH v9 11/84] KVM: x86: add .cr3_write_intercepted()
...ruct desc_ptr *dt);
diff --git a/arch/x86/kvm/svm/svm.c b/arch/x86/kvm/svm/svm.c
index f14fc940538b..7a4ec6fbffb9 100644
--- a/arch/x86/kvm/svm/svm.c
+++ b/arch/x86/kvm/svm/svm.c
@@ -1609,6 +1609,13 @@ static void svm_control_cr3_intercept(struct kvm_vcpu *vcpu, int type,
clr_cr_intercept(svm, INTERCEPT_CR3_WRITE);
}
+static bool svm_cr3_write_intercepted(struct kvm_vcpu *vcpu)
+{
+ struct vcpu_svm *svm = to_svm(vcpu);
+
+ return is_cr_intercept(svm, INTERCEPT_CR3_WRITE);
+}
+
static void svm_set_segment(struct kvm_vcpu *vcpu,
struct kvm_segment *var, int seg)
{
@@ -4022,6 +4029,7 @@ static str...
2020 Feb 07
0
[RFC PATCH v7 11/78] KVM: x86: add .control_cr3_intercept() to struct kvm_x86_ops
...cept(struct kvm_vcpu *vcpu, int type,
+ bool enable)
+{
+ struct vcpu_svm *svm = to_svm(vcpu);
+
+ if (type & CR_TYPE_R)
+ enable ? set_cr_intercept(svm, INTERCEPT_CR3_READ) :
+ clr_cr_intercept(svm, INTERCEPT_CR3_READ);
+ if (type & CR_TYPE_W)
+ enable ? set_cr_intercept(svm, INTERCEPT_CR3_WRITE) :
+ clr_cr_intercept(svm, INTERCEPT_CR3_WRITE);
+}
+
static struct kvm_x86_ops svm_x86_ops __ro_after_init = {
.cpu_has_kvm_support = has_svm,
.disabled_by_bios = is_disabled,
@@ -7297,6 +7310,7 @@ static struct kvm_x86_ops svm_x86_ops __ro_after_init = {
.set_cr0 = svm_set_cr0,
.set_c...
2020 Jul 21
0
[PATCH v9 10/84] KVM: x86: add .control_cr3_intercept() to struct kvm_x86_ops
...cept(struct kvm_vcpu *vcpu, int type,
+ bool enable)
+{
+ struct vcpu_svm *svm = to_svm(vcpu);
+
+ if (type & CR_TYPE_R)
+ enable ? set_cr_intercept(svm, INTERCEPT_CR3_READ) :
+ clr_cr_intercept(svm, INTERCEPT_CR3_READ);
+ if (type & CR_TYPE_W)
+ enable ? set_cr_intercept(svm, INTERCEPT_CR3_WRITE) :
+ clr_cr_intercept(svm, INTERCEPT_CR3_WRITE);
+}
+
static void svm_set_segment(struct kvm_vcpu *vcpu,
struct kvm_segment *var, int seg)
{
@@ -4008,6 +4021,7 @@ static struct kvm_x86_ops svm_x86_ops __initdata = {
.get_cs_db_l_bits = kvm_get_cs_db_l_bits,
.set_cr0 = svm_set_cr0,...
2020 Feb 07
0
[RFC PATCH v7 12/78] KVM: x86: add .cr3_write_intercepted()
...rch/x86/kvm/svm.c
@@ -7256,6 +7256,13 @@ static inline bool svm_bp_intercepted(struct kvm_vcpu *vcpu)
return get_exception_intercept(svm, BP_VECTOR);
}
+static inline bool svm_cr3_write_intercepted(struct kvm_vcpu *vcpu)
+{
+ struct vcpu_svm *svm = to_svm(vcpu);
+
+ return is_cr_intercept(svm, INTERCEPT_CR3_WRITE);
+}
+
static void svm_control_cr3_intercept(struct kvm_vcpu *vcpu, int type,
bool enable)
{
@@ -7311,6 +7318,7 @@ static struct kvm_x86_ops svm_x86_ops __ro_after_init = {
.set_cr3 = svm_set_cr3,
.set_cr4 = svm_set_cr4,
.control_cr3_intercept = svm_control_cr3_intercept,
+ .cr3_...
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