Displaying 20 results from an estimated 35 matches for "msr_data".
2020 Feb 07
0
[RFC PATCH v7 69/78] KVM: introspection: add KVMI_VCPU_CONTROL_MSR and KVMI_EVENT_MSR
...``new_val``.
diff --git a/arch/x86/include/asm/kvmi_host.h b/arch/x86/include/asm/kvmi_host.h
index 10b251856c0e..f9aaff45d082 100644
--- a/arch/x86/include/asm/kvmi_host.h
+++ b/arch/x86/include/asm/kvmi_host.h
@@ -2,7 +2,10 @@
#ifndef _ASM_X86_KVMI_HOST_H
#define _ASM_X86_KVMI_HOST_H
+struct msr_data;
+
#define KVMI_NUM_CR 5
+#define KVMI_NUM_MSR 0x2000
struct kvmi_monitor_interception {
bool kvmi_intercepted;
@@ -15,6 +18,12 @@ struct kvmi_interception {
struct kvmi_monitor_interception breakpoint;
struct kvmi_monitor_interception cr3w;
struct kvmi_monitor_interception descriptor;...
2020 Jul 21
0
[PATCH v9 75/84] KVM: introspection: add KVMI_VCPU_CONTROL_MSR and KVMI_EVENT_MSR
...CONTINUE* action will set the ``new_val``.
diff --git a/arch/x86/include/asm/kvmi_host.h b/arch/x86/include/asm/kvmi_host.h
index 0ed1879fd250..5f2967d86b72 100644
--- a/arch/x86/include/asm/kvmi_host.h
+++ b/arch/x86/include/asm/kvmi_host.h
@@ -4,7 +4,10 @@
#include <asm/kvmi.h>
+struct msr_data;
+
#define KVMI_NUM_CR 5
+#define KVMI_NUM_MSR 0x2000
struct kvmi_monitor_interception {
bool kvmi_intercepted;
@@ -18,6 +21,12 @@ struct kvmi_interception {
struct kvmi_monitor_interception breakpoint;
struct kvmi_monitor_interception cr3w;
struct kvmi_monitor_interception descriptor;...
2019 Aug 09
0
[RFC PATCH v6 55/92] kvm: introspection: add KVMI_CONTROL_MSR and KVMI_EVENT_MSR
...i_host.h b/arch/x86/include/asm/kvmi_host.h
index 83a098dc8939..8285d1eb0db6 100644
--- a/arch/x86/include/asm/kvmi_host.h
+++ b/arch/x86/include/asm/kvmi_host.h
@@ -11,11 +11,17 @@ struct kvmi_arch_mem_access {
#ifdef CONFIG_KVM_INTROSPECTION
+bool kvmi_msr_event(struct kvm_vcpu *vcpu, struct msr_data *msr);
bool kvmi_cr_event(struct kvm_vcpu *vcpu, unsigned int cr,
unsigned long old_value, unsigned long *new_value);
#else /* CONFIG_KVM_INTROSPECTION */
+static inline bool kvmi_msr_event(struct kvm_vcpu *vcpu, struct msr_data *msr)
+{
+ return true;
+}
+
static inline bool kvmi_cr_e...
2020 Feb 07
0
[RFC PATCH v7 15/78] KVM: x86: export .msr_write_intercepted()
...ost.h b/arch/x86/include/asm/kvm_host.h
index 4d43f5479c0c..8cdb6cece618 100644
--- a/arch/x86/include/asm/kvm_host.h
+++ b/arch/x86/include/asm/kvm_host.h
@@ -1056,6 +1056,7 @@ struct kvm_x86_ops {
void (*update_bp_intercept)(struct kvm_vcpu *vcpu);
int (*get_msr)(struct kvm_vcpu *vcpu, struct msr_data *msr);
int (*set_msr)(struct kvm_vcpu *vcpu, struct msr_data *msr);
+ bool (*msr_write_intercepted)(struct kvm_vcpu *vcpu, u32 msr);
u64 (*get_segment_base)(struct kvm_vcpu *vcpu, int seg);
void (*get_segment)(struct kvm_vcpu *vcpu,
struct kvm_segment *var, int seg);
diff --git a/arch...
2020 Feb 07
0
[RFC PATCH v7 17/78] KVM: svm: pass struct kvm_vcpu to set_msr_interception()
...svm->vcpu, msrpm, MSR_IA32_LASTINTFROMIP,
MSR_TYPE_RW, 0);
- set_msr_interception(msrpm, MSR_IA32_LASTINTTOIP,
+ set_msr_interception(&svm->vcpu, msrpm, MSR_IA32_LASTINTTOIP,
MSR_TYPE_RW, 0);
}
@@ -4327,7 +4328,7 @@ static int svm_set_msr(struct kvm_vcpu *vcpu, struct msr_data *msr)
* We update the L1 MSR bit as well since it will end up
* touching the MSR anyway now.
*/
- set_msr_interception(svm->msrpm, MSR_IA32_SPEC_CTRL,
+ set_msr_interception(vcpu, svm->msrpm, MSR_IA32_SPEC_CTRL,
MSR_TYPE_RW, 1);
break;
case MSR_IA32_PRED_CMD:
@@ -...
2020 Feb 07
0
[RFC PATCH v7 10/78] KVM: x86: add .bp_intercepted() to struct kvm_x86_ops
...m_host.h
@@ -1048,6 +1048,7 @@ struct kvm_x86_ops {
void (*vcpu_load)(struct kvm_vcpu *vcpu, int cpu);
void (*vcpu_put)(struct kvm_vcpu *vcpu);
+ bool (*bp_intercepted)(struct kvm_vcpu *vcpu);
void (*update_bp_intercept)(struct kvm_vcpu *vcpu);
int (*get_msr)(struct kvm_vcpu *vcpu, struct msr_data *msr);
int (*set_msr)(struct kvm_vcpu *vcpu, struct msr_data *msr);
diff --git a/arch/x86/kvm/svm.c b/arch/x86/kvm/svm.c
index 122d4ce3b1ab..df34ab0da4ff 100644
--- a/arch/x86/kvm/svm.c
+++ b/arch/x86/kvm/svm.c
@@ -607,6 +607,13 @@ static inline void clr_exception_intercept(struct vcpu_svm *svm,...
2020 Feb 07
0
[RFC PATCH v7 19/78] KVM: x86: add .control_msr_intercept()
...ost.h b/arch/x86/include/asm/kvm_host.h
index 2136f273645a..d8c61cc301fa 100644
--- a/arch/x86/include/asm/kvm_host.h
+++ b/arch/x86/include/asm/kvm_host.h
@@ -1060,6 +1060,8 @@ struct kvm_x86_ops {
void (*update_bp_intercept)(struct kvm_vcpu *vcpu);
int (*get_msr)(struct kvm_vcpu *vcpu, struct msr_data *msr);
int (*set_msr)(struct kvm_vcpu *vcpu, struct msr_data *msr);
+ void (*control_msr_intercept)(struct kvm_vcpu *vcpu, unsigned int msr,
+ int type, bool enable);
bool (*msr_write_intercepted)(struct kvm_vcpu *vcpu, u32 msr);
u64 (*get_segment_base)(struct kvm_vcpu *vcpu, int seg...
2020 Jul 21
0
[PATCH v9 20/84] KVM: x86: add .control_msr_intercept()
...ost.h b/arch/x86/include/asm/kvm_host.h
index a3230ab377db..f04a01dac423 100644
--- a/arch/x86/include/asm/kvm_host.h
+++ b/arch/x86/include/asm/kvm_host.h
@@ -1110,6 +1110,8 @@ struct kvm_x86_ops {
void (*update_bp_intercept)(struct kvm_vcpu *vcpu);
int (*get_msr)(struct kvm_vcpu *vcpu, struct msr_data *msr);
int (*set_msr)(struct kvm_vcpu *vcpu, struct msr_data *msr);
+ void (*control_msr_intercept)(struct kvm_vcpu *vcpu, unsigned int msr,
+ int type, bool enable);
bool (*msr_write_intercepted)(struct kvm_vcpu *vcpu, u32 msr);
u64 (*get_segment_base)(struct kvm_vcpu *vcpu, int seg...
2020 Feb 07
0
[RFC PATCH v7 70/78] KVM: introspection: restore the state of MSR interception on unhook
...bool enable);
} msrw;
};
@@ -44,6 +50,8 @@ void kvmi_xsetbv_event(struct kvm_vcpu *vcpu);
bool kvmi_monitor_desc_intercept(struct kvm_vcpu *vcpu, bool enable);
bool kvmi_descriptor_event(struct kvm_vcpu *vcpu, u8 descriptor, u8 write);
bool kvmi_msr_event(struct kvm_vcpu *vcpu, struct msr_data *msr);
+bool kvmi_monitor_msrw_intercept(struct kvm_vcpu *vcpu, u32 msr, bool enable);
+bool kvmi_msrw_intercept_originator(struct kvm_vcpu *vcpu);
#else /* CONFIG_KVM_INTROSPECTION */
@@ -62,6 +70,10 @@ static inline bool kvmi_descriptor_event(struct kvm_vcpu *vcpu, u8 descriptor,
u8 w...
2020 Jul 21
0
[PATCH v9 17/84] KVM: x86: use MSR_TYPE_R, MSR_TYPE_W and MSR_TYPE_RW with AMD
...PE_RW, 0);
+ set_msr_interception(msrpm, MSR_IA32_LASTINTFROMIP,
+ MSR_TYPE_RW, 0);
+ set_msr_interception(msrpm, MSR_IA32_LASTINTTOIP,
+ MSR_TYPE_RW, 0);
}
void disable_nmi_singlestep(struct vcpu_svm *svm)
@@ -2618,7 +2629,8 @@ static int svm_set_msr(struct kvm_vcpu *vcpu, struct msr_data *msr)
* We update the L1 MSR bit as well since it will end up
* touching the MSR anyway now.
*/
- set_msr_interception(svm->msrpm, MSR_IA32_SPEC_CTRL, 1, 1);
+ set_msr_interception(svm->msrpm, MSR_IA32_SPEC_CTRL,
+ MSR_TYPE_RW, 1);
break;
case MSR_IA32_PRED_CMD:...
2020 Feb 07
0
[RFC PATCH v7 16/78] KVM: x86: use MSR_TYPE_R, MSR_TYPE_W and MSR_TYPE_RW with AMD code too
...0);
+ set_msr_interception(msrpm, MSR_IA32_LASTINTFROMIP,
+ MSR_TYPE_RW, 0);
+ set_msr_interception(msrpm, MSR_IA32_LASTINTTOIP,
+ MSR_TYPE_RW, 0);
}
static void disable_nmi_singlestep(struct vcpu_svm *svm)
@@ -4315,7 +4327,8 @@ static int svm_set_msr(struct kvm_vcpu *vcpu, struct msr_data *msr)
* We update the L1 MSR bit as well since it will end up
* touching the MSR anyway now.
*/
- set_msr_interception(svm->msrpm, MSR_IA32_SPEC_CTRL, 1, 1);
+ set_msr_interception(svm->msrpm, MSR_IA32_SPEC_CTRL,
+ MSR_TYPE_RW, 1);
break;
case MSR_IA32_PRED_CMD:...
2020 Feb 07
0
[RFC PATCH v7 18/78] KVM: vmx: pass struct kvm_vcpu to the intercept msr related functions
...able_intercept_for_msr(unsigned long *msr_bitmap,
+static __always_inline void vmx_disable_intercept_for_msr(struct kvm_vcpu *vcpu,
+ unsigned long *msr_bitmap,
u32 msr, int type);
void vmx_vmexit(void);
@@ -2015,7 +2016,7 @@ static int vmx_set_msr(struct kvm_vcpu *vcpu, struct msr_data *msr_info)
* in the merging. We update the vmcs01 here for L1 as well
* since it will end up touching the MSR anyway now.
*/
- vmx_disable_intercept_for_msr(vmx->vmcs01.msr_bitmap,
+ vmx_disable_intercept_for_msr(vcpu, vmx->vmcs01.msr_bitmap,
MSR_IA32_SPEC_CTRL,...
2020 Jul 21
0
[PATCH v9 19/84] KVM: vmx: pass struct kvm_vcpu to the intercept msr related functions
...able_intercept_for_msr(unsigned long *msr_bitmap,
+static __always_inline void vmx_disable_intercept_for_msr(struct kvm_vcpu *vcpu,
+ unsigned long *msr_bitmap,
u32 msr, int type);
void vmx_vmexit(void);
@@ -2086,7 +2087,7 @@ static int vmx_set_msr(struct kvm_vcpu *vcpu, struct msr_data *msr_info)
* in the merging. We update the vmcs01 here for L1 as well
* since it will end up touching the MSR anyway now.
*/
- vmx_disable_intercept_for_msr(vmx->vmcs01.msr_bitmap,
+ vmx_disable_intercept_for_msr(vcpu, vmx->vmcs01.msr_bitmap,
MSR_IA32_SPEC_CTRL,...
2012 Feb 29
0
[PATCH] vpmu: cleanup structures
...nclude/asm-x86/hvm/vpmu.h Wed Feb 29 10:42:56 2012 +0100
@@ -34,16 +34,6 @@
#define MSR_TYPE_ARCH_COUNTER 3
#define MSR_TYPE_ARCH_CTRL 4
-struct pmumsr {
- unsigned int num;
- u32 *msr;
-};
-
-struct msr_load_store_entry {
- u32 msr_index;
- u32 msr_reserved;
- u64 msr_data;
-};
/* Arch specific operations shared by all vpmus */
struct arch_vpmu_ops {
--
Company details: http://ts.fujitsu.com/imprint.html
2020 Jul 21
0
[PATCH v9 77/84] KVM: introspection: add KVMI_VM_SET_PAGE_ACCESS
...6/include/asm/kvmi_host.h
index acc003403c95..98ea548c0b15 100644
--- a/arch/x86/include/asm/kvmi_host.h
+++ b/arch/x86/include/asm/kvmi_host.h
@@ -2,6 +2,7 @@
#ifndef _ASM_X86_KVMI_HOST_H
#define _ASM_X86_KVMI_HOST_H
+#include <asm/kvm_page_track.h>
#include <asm/kvmi.h>
struct msr_data;
@@ -42,6 +43,12 @@ struct kvm_vcpu_arch_introspection {
struct kvm_arch_introspection {
};
+#define SLOTS_SIZE BITS_TO_LONGS(KVM_MEM_SLOTS_NUM)
+
+struct kvmi_arch_mem_access {
+ unsigned long active[KVM_PAGE_TRACK_MAX][SLOTS_SIZE];
+};
+
#ifdef CONFIG_KVM_INTROSPECTION
bool kvmi_monitor_b...
2020 Jul 21
0
[PATCH v9 56/84] KVM: introspection: add KVMI_VCPU_GET_REGISTERS
...0;
+}
+
+static int kvmi_get_registers(struct kvm_vcpu *vcpu, u32 *mode,
+ struct kvm_regs *regs,
+ struct kvm_sregs *sregs,
+ struct kvm_msrs *msrs)
+{
+ struct kvm_msr_entry *msr = msrs->entries;
+ struct kvm_msr_entry *end = msrs->entries + msrs->nmsrs;
+ struct msr_data m = {.host_initiated = true};
+ int err = 0;
+
+ kvm_arch_vcpu_get_regs(vcpu, regs);
+ kvm_arch_vcpu_get_sregs(vcpu, sregs);
+ *mode = kvmi_vcpu_mode(vcpu, sregs);
+
+ for (; msr < end && !err; msr++) {
+ m.index = msr->index;
+
+ err = kvm_x86_ops.get_msr(vcpu, &m);
+
+ if (!e...
2016 Jul 07
5
[PATCH v2 0/4] implement vcpu preempted check
...();
- vcpu->arch.st.steal.version += 1;
+ st->version += 1;
kvm_write_guest_cached(vcpu->kvm, &vcpu->arch.st.stime,
- &vcpu->arch.st.steal, sizeof(struct kvm_steal_time));
+ st, sizeof(struct kvm_steal_time));
}
int kvm_set_msr_common(struct kvm_vcpu *vcpu, struct msr_data *msr_info)
@@ -6693,6 +6719,8 @@ static int vcpu_enter_guest(struct kvm_vcpu *vcpu)
preempt_enable();
+ update_steal_time_preempt(vcpu);
+
vcpu->srcu_idx = srcu_read_lock(&vcpu->kvm->srcu);
/*
2016 Jul 07
5
[PATCH v2 0/4] implement vcpu preempted check
...();
- vcpu->arch.st.steal.version += 1;
+ st->version += 1;
kvm_write_guest_cached(vcpu->kvm, &vcpu->arch.st.stime,
- &vcpu->arch.st.steal, sizeof(struct kvm_steal_time));
+ st, sizeof(struct kvm_steal_time));
}
int kvm_set_msr_common(struct kvm_vcpu *vcpu, struct msr_data *msr_info)
@@ -6693,6 +6719,8 @@ static int vcpu_enter_guest(struct kvm_vcpu *vcpu)
preempt_enable();
+ update_steal_time_preempt(vcpu);
+
vcpu->srcu_idx = srcu_read_lock(&vcpu->kvm->srcu);
/*
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
2016 Jul 06
3
[PATCH v2 0/4] implement vcpu preempted check
On 06/07/2016 14:08, Wanpeng Li wrote:
> 2016-07-06 18:44 GMT+08:00 Paolo Bonzini <pbonzini at redhat.com>:
>>
>>
>> On 06/07/2016 08:52, Peter Zijlstra wrote:
>>> On Tue, Jun 28, 2016 at 10:43:07AM -0400, Pan Xinhui wrote:
>>>> change fomr v1:
>>>> a simplier definition of default vcpu_is_preempted
>>>> skip mahcine