Displaying 6 results from an estimated 6 matches for "cr3_exec_control".
2020 Feb 07
0
[RFC PATCH v7 11/78] KVM: x86: add .control_cr3_intercept() to struct kvm_x86_ops
....c
+++ b/arch/x86/kvm/vmx/vmx.c
@@ -2900,24 +2900,37 @@ void ept_save_pdptrs(struct kvm_vcpu *vcpu)
kvm_register_mark_dirty(vcpu, VCPU_EXREG_PDPTR);
}
+static void vmx_control_cr3_intercept(struct kvm_vcpu *vcpu, int type,
+ bool enable)
+{
+ struct vcpu_vmx *vmx = to_vmx(vcpu);
+ u32 cr3_exec_control = 0;
+
+ if (type & CR_TYPE_R)
+ cr3_exec_control |= CPU_BASED_CR3_STORE_EXITING;
+ if (type & CR_TYPE_W)
+ cr3_exec_control |= CPU_BASED_CR3_LOAD_EXITING;
+
+ if (enable)
+ exec_controls_setbit(vmx, cr3_exec_control);
+ else
+ exec_controls_clearbit(vmx, cr3_exec_control);
+}
+
static...
2020 Jul 21
0
[PATCH v9 10/84] KVM: x86: add .control_cr3_intercept() to struct kvm_x86_ops
....c
+++ b/arch/x86/kvm/vmx/vmx.c
@@ -3003,24 +3003,37 @@ void ept_save_pdptrs(struct kvm_vcpu *vcpu)
kvm_register_mark_dirty(vcpu, VCPU_EXREG_PDPTR);
}
+static void vmx_control_cr3_intercept(struct kvm_vcpu *vcpu, int type,
+ bool enable)
+{
+ struct vcpu_vmx *vmx = to_vmx(vcpu);
+ u32 cr3_exec_control = 0;
+
+ if (type & CR_TYPE_R)
+ cr3_exec_control |= CPU_BASED_CR3_STORE_EXITING;
+ if (type & CR_TYPE_W)
+ cr3_exec_control |= CPU_BASED_CR3_LOAD_EXITING;
+
+ if (enable)
+ exec_controls_setbit(vmx, cr3_exec_control);
+ else
+ exec_controls_clearbit(vmx, cr3_exec_control);
+}
+
static...
2020 Feb 07
0
[RFC PATCH v7 61/78] KVM: introspection: restore the state of CR3 interception on unhook
...;
diff --git a/arch/x86/kvm/vmx/vmx.c b/arch/x86/kvm/vmx/vmx.c
index d3d7908995b5..157dfc3f756a 100644
--- a/arch/x86/kvm/vmx/vmx.c
+++ b/arch/x86/kvm/vmx/vmx.c
@@ -2907,6 +2907,11 @@ static void vmx_control_cr3_intercept(struct kvm_vcpu *vcpu, int type,
struct vcpu_vmx *vmx = to_vmx(vcpu);
u32 cr3_exec_control = 0;
+#ifdef CONFIG_KVM_INTROSPECTION
+ if ((type & CR_TYPE_W) && kvmi_monitor_cr3w_intercept(vcpu, enable))
+ type &= ~CR_TYPE_W;
+#endif /* CONFIG_KVM_INTROSPECTION */
+
if (type & CR_TYPE_R)
cr3_exec_control |= CPU_BASED_CR3_STORE_EXITING;
if (type & CR_TYPE_W)
2020 Jul 21
0
[PATCH v9 11/84] KVM: x86: add .cr3_write_intercepted()
...= svm_set_idt,
diff --git a/arch/x86/kvm/vmx/vmx.c b/arch/x86/kvm/vmx/vmx.c
index 6b9639703560..61eb64cf25c7 100644
--- a/arch/x86/kvm/vmx/vmx.c
+++ b/arch/x86/kvm/vmx/vmx.c
@@ -3020,6 +3020,13 @@ static void vmx_control_cr3_intercept(struct kvm_vcpu *vcpu, int type,
exec_controls_clearbit(vmx, cr3_exec_control);
}
+static bool vmx_cr3_write_intercepted(struct kvm_vcpu *vcpu)
+{
+ struct vcpu_vmx *vmx = to_vmx(vcpu);
+
+ return !!(exec_controls_get(vmx) & CPU_BASED_CR3_LOAD_EXITING);
+}
+
static void ept_update_paging_mode_cr0(unsigned long *hw_cr0,
unsigned long cr0,
struct kvm_vcpu *...
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
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