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From: "Adalbert Lazăr" <alazar@bitdefender.com>
To: kvm@vger.kernel.org
Cc: linux-mm@kvack.org, virtualization@lists.linux-foundation.org,
	"Paolo Bonzini" <pbonzini@redhat.com>,
	"Radim Krčmář" <rkrcmar@redhat.com>,
	"Konrad Rzeszutek Wilk" <konrad.wilk@oracle.com>,
	"Tamas K Lengyel" <tamas@tklengyel.com>,
	"Mathieu Tarral" <mathieu.tarral@protonmail.com>,
	"Samuel Laurén" <samuel.lauren@iki.fi>,
	"Patrick Colp" <patrick.colp@oracle.com>,
	"Jan Kiszka" <jan.kiszka@siemens.com>,
	"Stefan Hajnoczi" <stefanha@redhat.com>,
	"Weijiang Yang" <weijiang.yang@intel.com>,
	Zhang@kvack.org, "Yu C" <yu.c.zhang@intel.com>,
	"Mihai Donțu" <mdontu@bitdefender.com>,
	"Adalbert Lazăr" <alazar@bitdefender.com>,
	"Joerg Roedel" <joro@8bytes.org>,
	"Nicușor Cîțu" <ncitu@bitdefender.com>
Subject: [RFC PATCH v6 53/92] kvm: introspection: add KVMI_INJECT_EXCEPTION + KVMI_EVENT_TRAP
Date: Fri,  9 Aug 2019 19:00:08 +0300
Message-ID: <20190809160047.8319-54-alazar@bitdefender.com> (raw)
In-Reply-To: <20190809160047.8319-1-alazar@bitdefender.com>

From: Mihai Donțu <mdontu@bitdefender.com>

The KVMI_INJECT_EXCEPTION command is used by the introspection tool to
inject exceptions (eg. get a page from swap). The exception is queued
right before entering the guest. If there is already an event pending
(exception, interrupt or NMI) we notify the introspection tool with the
KVMI_EVENT_TRAP event and abort the injection. The introspecion tool is
expected to try again at a later time.

CC: Joerg Roedel <joro@8bytes.org>
Signed-off-by: Mihai Donțu <mdontu@bitdefender.com>
Co-developed-by: Nicușor Cîțu <ncitu@bitdefender.com>
Signed-off-by: Nicușor Cîțu <ncitu@bitdefender.com>
Signed-off-by: Adalbert Lazăr <alazar@bitdefender.com>
---
 Documentation/virtual/kvm/kvmi.rst |  71 +++++++++++++++++++
 arch/x86/include/uapi/asm/kvmi.h   |   8 +++
 arch/x86/kvm/kvmi.c                | 108 +++++++++++++++++++++++++++++
 arch/x86/kvm/x86.c                 |  11 +++
 include/linux/kvmi.h               |   4 ++
 include/uapi/linux/kvmi.h          |   8 +++
 virt/kvm/kvmi.c                    |  40 +++++++++++
 virt/kvm/kvmi_int.h                |  16 +++++
 virt/kvm/kvmi_msg.c                |  21 ++++++
 9 files changed, 287 insertions(+)

diff --git a/Documentation/virtual/kvm/kvmi.rst b/Documentation/virtual/kvm/kvmi.rst
index 9e15132ed976..1eaed7c61148 100644
--- a/Documentation/virtual/kvm/kvmi.rst
+++ b/Documentation/virtual/kvm/kvmi.rst
@@ -969,6 +969,44 @@ Returns a CPUID leaf (as seen by the guest OS).
 * -KVM_EAGAIN - the selected vCPU can't be introspected yet
 * -KVM_ENOENT - the selected leaf is not present or is invalid
 
+20. KVMI_INJECT_EXCEPTION
+-------------------------
+
+:Architectures: x86
+:Versions: >= 1
+:Parameters:
+
+::
+
+	struct kvmi_vcpu_hdr;
+	struct kvmi_inject_exception {
+		__u8 nr;
+		__u8 has_error;
+		__u16 padding;
+		__u32 error_code;
+		__u64 address;
+	};
+
+:Returns:
+
+::
+
+	struct kvmi_error_code
+
+Injects a vCPU exception with or without an error code. In case of page fault
+exception, the guest virtual address has to be specified.
+
+The introspection tool should enable the *KVMI_EVENT_TRAP* event in
+order to be notified if the expection was not delivered.
+
+:Errors:
+
+* -KVM_EINVAL - the selected vCPU is invalid
+* -KVM_EINVAL - the specified exception number is invalid
+* -KVM_EINVAL - the specified address is invalid
+* -KVM_EINVAL - padding is not zero
+* -KVM_EAGAIN - the selected vCPU can't be introspected yet
+
 Events
 ======
 
@@ -1167,3 +1205,36 @@ cannot be disabled via *KVMI_CONTROL_EVENTS*.
 This event has a low priority. It will be sent after any other vCPU
 introspection event and when no vCPU introspection command is queued.
 
+5. KVMI_EVENT_TRAP
+------------------
+
+:Architectures: x86
+:Versions: >= 1
+:Actions: CONTINUE, CRASH
+:Parameters:
+
+::
+
+	struct kvmi_event;
+	struct kvmi_event_trap {
+		__u32 vector;
+		__u32 type;
+		__u32 error_code;
+		__u32 padding;
+		__u64 cr2;
+	};
+
+:Returns:
+
+::
+
+	struct kvmi_vcpu_hdr;
+	struct kvmi_event_reply;
+
+This event is sent if a previous *KVMI_INJECT_EXCEPTION* command has
+been overwritten by an interrupt picked up during guest reentry and the
+introspection has been enabled for this event (see *KVMI_CONTROL_EVENTS*).
+
+``kvmi_event``, exception/interrupt number (vector), exception/interrupt
+type, exception code (``error_code``) and CR2 are sent to the introspector.
+
diff --git a/arch/x86/include/uapi/asm/kvmi.h b/arch/x86/include/uapi/asm/kvmi.h
index fa2719226198..b074ad735e84 100644
--- a/arch/x86/include/uapi/asm/kvmi.h
+++ b/arch/x86/include/uapi/asm/kvmi.h
@@ -26,6 +26,14 @@ struct kvmi_event_arch {
 	} msrs;
 };
 
+struct kvmi_event_trap {
+	__u32 vector;
+	__u32 type;
+	__u32 error_code;
+	__u32 padding;
+	__u64 cr2;
+};
+
 struct kvmi_get_registers {
 	__u16 nmsrs;
 	__u16 padding1;
diff --git a/arch/x86/kvm/kvmi.c b/arch/x86/kvm/kvmi.c
index 4615bbe9c0db..8c18030d12f4 100644
--- a/arch/x86/kvm/kvmi.c
+++ b/arch/x86/kvm/kvmi.c
@@ -6,6 +6,7 @@
  */
 #include "x86.h"
 #include "cpuid.h"
+#include <asm/vmx.h>
 #include "../../../virt/kvm/kvmi_int.h"
 
 static void *alloc_get_registers_reply(const struct kvmi_msg_hdr *msg,
@@ -212,6 +213,87 @@ bool kvmi_arch_pf_event(struct kvm_vcpu *vcpu, gpa_t gpa, gva_t gva,
 	return ret;
 }
 
+bool kvmi_arch_queue_exception(struct kvm_vcpu *vcpu)
+{
+	if (!vcpu->arch.exception.injected &&
+	    !vcpu->arch.interrupt.injected &&
+	    !vcpu->arch.nmi_injected) {
+		struct kvmi_vcpu *ivcpu = IVCPU(vcpu);
+		struct x86_exception e = {
+			.vector = ivcpu->exception.nr,
+			.error_code_valid = ivcpu->exception.error_code_valid,
+			.error_code = ivcpu->exception.error_code,
+			.address = ivcpu->exception.address,
+		};
+
+		if (e.vector == PF_VECTOR)
+			kvm_inject_page_fault(vcpu, &e);
+		else if (e.error_code_valid)
+			kvm_queue_exception_e(vcpu, e.vector, e.error_code);
+		else
+			kvm_queue_exception(vcpu, e.vector);
+
+		return true;
+	}
+
+	return false;
+}
+
+static u32 kvmi_send_trap(struct kvm_vcpu *vcpu, u32 vector, u32 type,
+			  u32 error_code, u64 cr2)
+{
+	struct kvmi_event_trap e = {
+		.error_code = error_code,
+		.vector = vector,
+		.type = type,
+		.cr2 = cr2
+	};
+	int err, action;
+
+	err = kvmi_send_event(vcpu, KVMI_EVENT_TRAP, &e, sizeof(e),
+			      NULL, 0, &action);
+	if (err)
+		return KVMI_EVENT_ACTION_CONTINUE;
+
+	return action;
+}
+
+void kvmi_arch_trap_event(struct kvm_vcpu *vcpu)
+{
+	u32 vector, type, err;
+	u32 action;
+
+	if (vcpu->arch.exception.injected) {
+		vector = vcpu->arch.exception.nr;
+		err = vcpu->arch.exception.error_code;
+
+		if (kvm_exception_is_soft(vector))
+			type = INTR_TYPE_SOFT_EXCEPTION;
+		else
+			type = INTR_TYPE_HARD_EXCEPTION;
+	} else if (vcpu->arch.interrupt.injected) {
+		vector = vcpu->arch.interrupt.nr;
+		err = 0;
+
+		if (vcpu->arch.interrupt.soft)
+			type = INTR_TYPE_SOFT_INTR;
+		else
+			type = INTR_TYPE_EXT_INTR;
+	} else {
+		vector = 0;
+		type = 0;
+		err = 0;
+	}
+
+	action = kvmi_send_trap(vcpu, vector, type, err, vcpu->arch.cr2);
+	switch (action) {
+	case KVMI_EVENT_ACTION_CONTINUE:
+		break;
+	default:
+		kvmi_handle_common_event_actions(vcpu, action, "TRAP");
+	}
+}
+
 int kvmi_arch_cmd_get_cpuid(struct kvm_vcpu *vcpu,
 			    const struct kvmi_get_cpuid *req,
 			    struct kvmi_get_cpuid_reply *rpl)
@@ -241,6 +323,32 @@ int kvmi_arch_cmd_get_vcpu_info(struct kvm_vcpu *vcpu,
 	return 0;
 }
 
+static bool is_vector_valid(u8 vector)
+{
+	return true;
+}
+
+static bool is_gva_valid(struct kvm_vcpu *vcpu, u64 gva)
+{
+	return true;
+}
+
+int kvmi_arch_cmd_inject_exception(struct kvm_vcpu *vcpu, u8 vector,
+				   bool error_code_valid,
+				   u32 error_code, u64 address)
+{
+	if (!(is_vector_valid(vector) && is_gva_valid(vcpu, address)))
+		return -KVM_EINVAL;
+
+	IVCPU(vcpu)->exception.pending = true;
+	IVCPU(vcpu)->exception.nr = vector;
+	IVCPU(vcpu)->exception.error_code = error_code_valid ? error_code : 0;
+	IVCPU(vcpu)->exception.error_code_valid = error_code_valid;
+	IVCPU(vcpu)->exception.address = address;
+
+	return 0;
+}
+
 static const struct {
 	unsigned int allow_bit;
 	enum kvm_page_track_mode track_mode;
diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
index 62d15bbb2332..e38c0b95a0e7 100644
--- a/arch/x86/kvm/x86.c
+++ b/arch/x86/kvm/x86.c
@@ -7930,6 +7930,17 @@ static int vcpu_enter_guest(struct kvm_vcpu *vcpu)
 		}
 	}
 
+	if (!kvmi_queue_exception(vcpu))
+		kvmi_trap_event(vcpu);
+	else if (vcpu->arch.exception.pending) {
+		kvm_x86_ops->queue_exception(vcpu);
+		if (exception_type(vcpu->arch.exception.nr) == EXCPT_FAULT)
+			__kvm_set_rflags(vcpu, kvm_get_rflags(vcpu) |
+						X86_EFLAGS_RF);
+		vcpu->arch.exception.pending = false;
+		vcpu->arch.exception.injected = true;
+	}
+
 	r = kvm_mmu_reload(vcpu);
 	if (unlikely(r)) {
 		goto cancel_injection;
diff --git a/include/linux/kvmi.h b/include/linux/kvmi.h
index 80c15b9195e4..5ae02c64fb33 100644
--- a/include/linux/kvmi.h
+++ b/include/linux/kvmi.h
@@ -16,6 +16,8 @@ int kvmi_ioctl_event(struct kvm *kvm, void __user *argp);
 int kvmi_ioctl_unhook(struct kvm *kvm, bool force_reset);
 int kvmi_vcpu_init(struct kvm_vcpu *vcpu);
 void kvmi_vcpu_uninit(struct kvm_vcpu *vcpu);
+bool kvmi_queue_exception(struct kvm_vcpu *vcpu);
+void kvmi_trap_event(struct kvm_vcpu *vcpu);
 void kvmi_handle_requests(struct kvm_vcpu *vcpu);
 void kvmi_init_emulate(struct kvm_vcpu *vcpu);
 void kvmi_activate_rep_complete(struct kvm_vcpu *vcpu);
@@ -29,6 +31,8 @@ static inline void kvmi_destroy_vm(struct kvm *kvm) { }
 static inline int kvmi_vcpu_init(struct kvm_vcpu *vcpu) { return 0; }
 static inline void kvmi_vcpu_uninit(struct kvm_vcpu *vcpu) { }
 static inline void kvmi_handle_requests(struct kvm_vcpu *vcpu) { }
+static inline bool kvmi_queue_exception(struct kvm_vcpu *vcpu) { return true; }
+static inline void kvmi_trap_event(struct kvm_vcpu *vcpu) { }
 static inline void kvmi_init_emulate(struct kvm_vcpu *vcpu) { }
 static inline void kvmi_activate_rep_complete(struct kvm_vcpu *vcpu) { }
 
diff --git a/include/uapi/linux/kvmi.h b/include/uapi/linux/kvmi.h
index ca9c6b6aeed5..a4583de5c2f6 100644
--- a/include/uapi/linux/kvmi.h
+++ b/include/uapi/linux/kvmi.h
@@ -215,6 +215,14 @@ struct kvmi_vcpu_hdr {
 	__u32 padding2;
 };
 
+struct kvmi_inject_exception {
+	__u8 nr;
+	__u8 has_error;
+	__u16 padding;
+	__u32 error_code;
+	__u64 address;
+};
+
 struct kvmi_event {
 	__u16 size;
 	__u16 vcpu;
diff --git a/virt/kvm/kvmi.c b/virt/kvm/kvmi.c
index a20891d3a2ce..e3f308898a60 100644
--- a/virt/kvm/kvmi.c
+++ b/virt/kvm/kvmi.c
@@ -1058,6 +1058,46 @@ void kvmi_activate_rep_complete(struct kvm_vcpu *vcpu)
 }
 EXPORT_SYMBOL(kvmi_activate_rep_complete);
 
+/*
+ * This function returns false if there is an exception or interrupt pending.
+ * It returns true in all other cases including KVMI not being initialized.
+ */
+bool kvmi_queue_exception(struct kvm_vcpu *vcpu)
+{
+	struct kvmi *ikvm;
+	bool ret = true;
+
+	ikvm = kvmi_get(vcpu->kvm);
+	if (!ikvm)
+		return true;
+
+	if (!IVCPU(vcpu)->exception.pending)
+		goto out;
+
+	ret = kvmi_arch_queue_exception(vcpu);
+
+	memset(&IVCPU(vcpu)->exception, 0, sizeof(IVCPU(vcpu)->exception));
+
+out:
+	kvmi_put(vcpu->kvm);
+
+	return ret;
+}
+
+void kvmi_trap_event(struct kvm_vcpu *vcpu)
+{
+	struct kvmi *ikvm;
+
+	ikvm = kvmi_get(vcpu->kvm);
+	if (!ikvm)
+		return;
+
+	if (is_event_enabled(vcpu, KVMI_EVENT_TRAP))
+		kvmi_arch_trap_event(vcpu);
+
+	kvmi_put(vcpu->kvm);
+}
+
 static bool __kvmi_create_vcpu_event(struct kvm_vcpu *vcpu)
 {
 	u32 action;
diff --git a/virt/kvm/kvmi_int.h b/virt/kvm/kvmi_int.h
index 22508d147495..2eadeb6efde8 100644
--- a/virt/kvm/kvmi_int.h
+++ b/virt/kvm/kvmi_int.h
@@ -105,6 +105,14 @@ struct kvmi_vcpu {
 	bool reply_waiting;
 	struct kvmi_vcpu_reply reply;
 
+	struct {
+		u8 nr;
+		u32 error_code;
+		bool error_code_valid;
+		u64 address;
+		bool pending;
+	} exception;
+
 	bool have_delayed_regs;
 	struct kvm_regs delayed_regs;
 
@@ -165,6 +173,9 @@ bool kvmi_sock_get(struct kvmi *ikvm, int fd);
 void kvmi_sock_shutdown(struct kvmi *ikvm);
 void kvmi_sock_put(struct kvmi *ikvm);
 bool kvmi_msg_process(struct kvmi *ikvm);
+int kvmi_send_event(struct kvm_vcpu *vcpu, u32 ev_id,
+		    void *ev, size_t ev_size,
+		    void *rpl, size_t rpl_size, int *action);
 u32 kvmi_msg_send_pf(struct kvm_vcpu *vcpu, u64 gpa, u64 gva, u8 access,
 		     bool *singlestep, bool *rep_complete,
 		     u64 *ctx_addr, u8 *ctx, u32 *ctx_size);
@@ -230,10 +241,15 @@ int kvmi_arch_cmd_set_page_write_bitmap(struct kvmi *ikvm,
 void kvmi_arch_setup_event(struct kvm_vcpu *vcpu, struct kvmi_event *ev);
 bool kvmi_arch_pf_event(struct kvm_vcpu *vcpu, gpa_t gpa, gva_t gva,
 			u8 access);
+bool kvmi_arch_queue_exception(struct kvm_vcpu *vcpu);
+void kvmi_arch_trap_event(struct kvm_vcpu *vcpu);
 int kvmi_arch_cmd_get_cpuid(struct kvm_vcpu *vcpu,
 			    const struct kvmi_get_cpuid *req,
 			    struct kvmi_get_cpuid_reply *rpl);
 int kvmi_arch_cmd_get_vcpu_info(struct kvm_vcpu *vcpu,
 				struct kvmi_get_vcpu_info_reply *rpl);
+int kvmi_arch_cmd_inject_exception(struct kvm_vcpu *vcpu, u8 vector,
+				   bool error_code_valid, u32 error_code,
+				   u64 address);
 
 #endif
diff --git a/virt/kvm/kvmi_msg.c b/virt/kvm/kvmi_msg.c
index 9548042de618..e80d28dbb061 100644
--- a/virt/kvm/kvmi_msg.c
+++ b/virt/kvm/kvmi_msg.c
@@ -36,6 +36,7 @@ static const char *const msg_IDs[] = {
 	[KVMI_GET_REGISTERS]         = "KVMI_GET_REGISTERS",
 	[KVMI_GET_VCPU_INFO]         = "KVMI_GET_VCPU_INFO",
 	[KVMI_GET_VERSION]           = "KVMI_GET_VERSION",
+	[KVMI_INJECT_EXCEPTION]      = "KVMI_INJECT_EXCEPTION",
 	[KVMI_PAUSE_VCPU]            = "KVMI_PAUSE_VCPU",
 	[KVMI_READ_PHYSICAL]         = "KVMI_READ_PHYSICAL",
 	[KVMI_SET_PAGE_ACCESS]       = "KVMI_SET_PAGE_ACCESS",
@@ -620,6 +621,25 @@ static int handle_set_registers(struct kvm_vcpu *vcpu,
 	return reply_cb(vcpu, msg, err, NULL, 0);
 }
 
+static int handle_inject_exception(struct kvm_vcpu *vcpu,
+				   const struct kvmi_msg_hdr *msg,
+				   const void *_req,
+				   vcpu_reply_fct reply_cb)
+{
+	const struct kvmi_inject_exception *req = _req;
+	int ec;
+
+	if (req->padding)
+		ec = -KVM_EINVAL;
+	else
+		ec = kvmi_arch_cmd_inject_exception(vcpu, req->nr,
+						    req->has_error,
+						    req->error_code,
+						    req->address);
+
+	return reply_cb(vcpu, msg, ec, NULL, 0);
+}
+
 static int handle_control_events(struct kvm_vcpu *vcpu,
 				 const struct kvmi_msg_hdr *msg,
 				 const void *_req,
@@ -670,6 +690,7 @@ static int(*const msg_vcpu[])(struct kvm_vcpu *,
 	[KVMI_GET_CPUID]        = handle_get_cpuid,
 	[KVMI_GET_REGISTERS]    = handle_get_registers,
 	[KVMI_GET_VCPU_INFO]    = handle_get_vcpu_info,
+	[KVMI_INJECT_EXCEPTION] = handle_inject_exception,
 	[KVMI_SET_REGISTERS]    = handle_set_registers,
 };
 


  parent reply index

Thread overview: 168+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-08-09 15:59 [RFC PATCH v6 00/92] VM introspection Adalbert Lazăr
2019-08-09 15:59 ` [RFC PATCH v6 01/92] kvm: introduce KVMI (VM introspection subsystem) Adalbert Lazăr
2019-08-12 20:20   ` Sean Christopherson
2019-08-13  9:11     ` Paolo Bonzini
2019-08-13 11:57     ` Adalbert Lazăr
     [not found]     ` <5d52a5ae.1c69fb81.5c260.1573SMTPIN_ADDED_BROKEN@mx.google.com>
2019-08-13 12:09       ` Paolo Bonzini
2019-08-13 15:01         ` Sean Christopherson
2019-08-13 21:03           ` Paolo Bonzini
2019-08-14  9:48           ` Adalbert Lazăr
     [not found]           ` <5d53d8d1.1c69fb81.7d32.0bedSMTPIN_ADDED_BROKEN@mx.google.com>
2019-08-14 10:37             ` Paolo Bonzini
2019-08-09 15:59 ` [RFC PATCH v6 02/92] kvm: introspection: add basic ioctls (hook/unhook) Adalbert Lazăr
2019-08-13  8:44   ` Paolo Bonzini
2019-08-13 14:24     ` Adalbert Lazăr
2019-08-09 15:59 ` [RFC PATCH v6 03/92] kvm: introspection: add permission access ioctls Adalbert Lazăr
2019-08-09 15:59 ` [RFC PATCH v6 04/92] kvm: introspection: add the read/dispatch message function Adalbert Lazăr
2019-08-09 15:59 ` [RFC PATCH v6 05/92] kvm: introspection: add KVMI_GET_VERSION Adalbert Lazăr
2019-08-09 15:59 ` [RFC PATCH v6 06/92] kvm: introspection: add KVMI_CONTROL_CMD_RESPONSE Adalbert Lazăr
2019-08-13  9:15   ` Paolo Bonzini
2019-08-13 17:08     ` Adalbert Lazăr
2019-08-09 15:59 ` [RFC PATCH v6 07/92] kvm: introspection: honor the reply option when handling the KVMI_GET_VERSION command Adalbert Lazăr
2019-08-13  9:16   ` Paolo Bonzini
2019-08-09 15:59 ` [RFC PATCH v6 08/92] kvm: introspection: add KVMI_CHECK_COMMAND and KVMI_CHECK_EVENT Adalbert Lazăr
2019-08-09 15:59 ` [RFC PATCH v6 09/92] kvm: introspection: add KVMI_GET_GUEST_INFO Adalbert Lazăr
2019-08-09 15:59 ` [RFC PATCH v6 10/92] kvm: introspection: add KVMI_CONTROL_VM_EVENTS Adalbert Lazăr
2019-08-09 15:59 ` [RFC PATCH v6 11/92] kvm: introspection: add vCPU related data Adalbert Lazăr
2019-08-09 15:59 ` [RFC PATCH v6 12/92] kvm: introspection: add a jobs list to every introspected vCPU Adalbert Lazăr
2019-08-09 15:59 ` [RFC PATCH v6 13/92] kvm: introspection: make the vCPU wait even when its jobs list is empty Adalbert Lazăr
2019-08-13  8:43   ` Paolo Bonzini
2019-08-13 14:19     ` Adalbert Lazăr
2019-08-09 15:59 ` [RFC PATCH v6 14/92] kvm: introspection: handle introspection commands before returning to guest Adalbert Lazăr
2019-08-13  8:26   ` Paolo Bonzini
2019-08-13 13:54     ` Adalbert Lazăr
     [not found]     ` <5d52c10e.1c69fb81.26904.fd34SMTPIN_ADDED_BROKEN@mx.google.com>
2019-08-13 14:45       ` Paolo Bonzini
2019-08-14  9:39         ` Adalbert Lazăr
2019-08-09 15:59 ` [RFC PATCH v6 15/92] kvm: introspection: handle vCPU related introspection commands Adalbert Lazăr
2019-08-09 15:59 ` [RFC PATCH v6 16/92] kvm: introspection: handle events and event replies Adalbert Lazăr
2019-08-13  8:55   ` Paolo Bonzini
2019-08-13 15:25     ` Adalbert Lazăr
2019-08-09 15:59 ` [RFC PATCH v6 17/92] kvm: introspection: introduce event actions Adalbert Lazăr
2019-08-09 15:59 ` [RFC PATCH v6 18/92] kvm: introspection: add KVMI_EVENT_UNHOOK Adalbert Lazăr
2019-08-09 15:59 ` [RFC PATCH v6 19/92] kvm: introspection: add KVMI_EVENT_CREATE_VCPU Adalbert Lazăr
2019-08-09 15:59 ` [RFC PATCH v6 20/92] kvm: introspection: add KVMI_GET_VCPU_INFO Adalbert Lazăr
2019-08-09 15:59 ` [RFC PATCH v6 21/92] kvm: page track: add track_create_slot() callback Adalbert Lazăr
2019-08-09 15:59 ` [RFC PATCH v6 22/92] kvm: x86: provide all page tracking hooks with the guest virtual address Adalbert Lazăr
2019-08-09 15:59 ` [RFC PATCH v6 23/92] kvm: page track: add support for preread, prewrite and preexec Adalbert Lazăr
2019-08-09 15:59 ` [RFC PATCH v6 24/92] kvm: x86: wire in the preread/prewrite/preexec page trackers Adalbert Lazăr
2019-08-09 15:59 ` [RFC PATCH v6 25/92] kvm: x86: intercept the write access on sidt and other emulated instructions Adalbert Lazăr
2019-08-09 15:59 ` [RFC PATCH v6 26/92] kvm: x86: add kvm_mmu_nested_pagefault() Adalbert Lazăr
2019-08-13  8:12   ` Paolo Bonzini
2019-08-09 15:59 ` [RFC PATCH v6 27/92] kvm: introspection: use page track Adalbert Lazăr
2019-08-13  9:06   ` Paolo Bonzini
2019-08-09 15:59 ` [RFC PATCH v6 28/92] kvm: x86: consult the page tracking from kvm_mmu_get_page() and __direct_map() Adalbert Lazăr
2019-08-09 15:59 ` [RFC PATCH v6 29/92] kvm: introspection: add KVMI_CONTROL_EVENTS Adalbert Lazăr
2019-08-09 15:59 ` [RFC PATCH v6 30/92] kvm: x86: add kvm_spt_fault() Adalbert Lazăr
2019-08-09 15:59 ` [RFC PATCH v6 31/92] kvm: introspection: add KVMI_EVENT_PF Adalbert Lazăr
2019-08-09 15:59 ` [RFC PATCH v6 32/92] kvm: introspection: add KVMI_GET_PAGE_ACCESS Adalbert Lazăr
2019-08-09 15:59 ` [RFC PATCH v6 33/92] kvm: introspection: add KVMI_SET_PAGE_ACCESS Adalbert Lazăr
2019-08-09 15:59 ` [RFC PATCH v6 34/92] Documentation: Introduce EPT based Subpage Protection Adalbert Lazăr
2019-08-09 15:59 ` [RFC PATCH v6 35/92] KVM: VMX: Add control flags for SPP enabling Adalbert Lazăr
2019-08-09 15:59 ` [RFC PATCH v6 36/92] KVM: VMX: Implement functions for SPPT paging setup Adalbert Lazăr
2019-08-09 15:59 ` [RFC PATCH v6 37/92] KVM: VMX: Introduce SPP access bitmap and operation functions Adalbert Lazăr
2019-08-09 15:59 ` [RFC PATCH v6 38/92] KVM: VMX: Add init/set/get functions for SPP Adalbert Lazăr
2019-08-09 15:59 ` [RFC PATCH v6 39/92] KVM: VMX: Introduce SPP user-space IOCTLs Adalbert Lazăr
2019-08-09 15:59 ` [RFC PATCH v6 40/92] KVM: VMX: Handle SPP induced vmexit and page fault Adalbert Lazăr
2019-08-09 15:59 ` [RFC PATCH v6 41/92] KVM: MMU: Enable Lazy mode SPPT setup Adalbert Lazăr
2019-08-09 15:59 ` [RFC PATCH v6 42/92] KVM: MMU: Handle host memory remapping and reclaim Adalbert Lazăr
2019-08-09 15:59 ` [RFC PATCH v6 43/92] kvm: introspection: add KVMI_CONTROL_SPP Adalbert Lazăr
2019-08-09 15:59 ` [RFC PATCH v6 44/92] kvm: introspection: extend the internal database of tracked pages with write_bitmap info Adalbert Lazăr
2019-08-09 16:00 ` [RFC PATCH v6 45/92] kvm: introspection: add KVMI_GET_PAGE_WRITE_BITMAP Adalbert Lazăr
2019-08-09 16:00 ` [RFC PATCH v6 46/92] kvm: introspection: add KVMI_SET_PAGE_WRITE_BITMAP Adalbert Lazăr
2019-08-09 16:00 ` [RFC PATCH v6 47/92] kvm: introspection: add KVMI_READ_PHYSICAL and KVMI_WRITE_PHYSICAL Adalbert Lazăr
2019-08-09 16:00 ` [RFC PATCH v6 48/92] kvm: add kvm_vcpu_kick_and_wait() Adalbert Lazăr
2019-08-09 16:00 ` [RFC PATCH v6 49/92] kvm: introspection: add KVMI_PAUSE_VCPU and KVMI_EVENT_PAUSE_VCPU Adalbert Lazăr
2019-08-09 16:00 ` [RFC PATCH v6 50/92] kvm: introspection: add KVMI_GET_REGISTERS Adalbert Lazăr
2019-08-09 16:00 ` [RFC PATCH v6 51/92] kvm: introspection: add KVMI_SET_REGISTERS Adalbert Lazăr
2019-08-09 16:00 ` [RFC PATCH v6 52/92] kvm: introspection: add KVMI_GET_CPUID Adalbert Lazăr
2019-08-09 16:00 ` Adalbert Lazăr [this message]
2019-08-09 16:00 ` [RFC PATCH v6 54/92] kvm: introspection: add KVMI_CONTROL_CR and KVMI_EVENT_CR Adalbert Lazăr
2019-08-09 16:00 ` [RFC PATCH v6 55/92] kvm: introspection: add KVMI_CONTROL_MSR and KVMI_EVENT_MSR Adalbert Lazăr
2019-08-12 21:05   ` Sean Christopherson
2019-08-15  6:36     ` Nicusor CITU
2019-08-19 18:36       ` Sean Christopherson
2019-08-20  8:44         ` Nicusor CITU
2019-08-20 11:43           ` Mihai Donțu
2019-08-21 15:18             ` Sean Christopherson
2019-08-19 18:52   ` Sean Christopherson
2019-08-09 16:00 ` [RFC PATCH v6 56/92] kvm: x86: block any attempt to disable MSR interception if tracked by introspection Adalbert Lazăr
2019-08-09 16:00 ` [RFC PATCH v6 57/92] kvm: introspection: add KVMI_GET_XSAVE Adalbert Lazăr
2019-08-09 16:00 ` [RFC PATCH v6 58/92] kvm: introspection: add KVMI_GET_MTRR_TYPE Adalbert Lazăr
2019-08-09 16:00 ` [RFC PATCH v6 59/92] kvm: introspection: add KVMI_EVENT_XSETBV Adalbert Lazăr
2019-08-09 16:00 ` [RFC PATCH v6 60/92] kvm: x86: add kvm_arch_vcpu_set_guest_debug() Adalbert Lazăr
2019-08-09 16:00 ` [RFC PATCH v6 61/92] kvm: introspection: add KVMI_EVENT_BREAKPOINT Adalbert Lazăr
2019-08-09 16:00 ` [RFC PATCH v6 62/92] kvm: introspection: add KVMI_EVENT_HYPERCALL Adalbert Lazăr
2019-08-09 16:00 ` [RFC PATCH v6 63/92] kvm: introspection: add KVMI_EVENT_DESCRIPTOR Adalbert Lazăr
2019-08-09 16:00 ` [RFC PATCH v6 64/92] kvm: introspection: add single-stepping Adalbert Lazăr
2019-08-12 20:50   ` Sean Christopherson
2019-08-13 12:51     ` Adalbert Lazăr
2019-08-14 12:36     ` Nicusor CITU
2019-08-14 12:53       ` Paolo Bonzini
2019-08-09 16:00 ` [RFC PATCH v6 65/92] kvm: introspection: add KVMI_EVENT_SINGLESTEP Adalbert Lazăr
2019-08-09 16:00 ` [RFC PATCH v6 66/92] kvm: introspection: add custom input when single-stepping a vCPU Adalbert Lazăr
2019-08-09 16:00 ` [RFC PATCH v6 67/92] kvm: introspection: use single stepping on unimplemented instructions Adalbert Lazăr
2019-08-09 16:00 ` [RFC PATCH v6 68/92] kvm: x86: emulate a guest page table walk on SPT violations due to A/D bit updates Adalbert Lazăr
2019-08-09 16:00 ` [RFC PATCH v6 69/92] kvm: x86: keep the page protected if tracked by the introspection tool Adalbert Lazăr
2019-09-10 14:26   ` Konrad Rzeszutek Wilk
2019-09-10 16:28     ` Adalbert Lazăr
2019-08-09 16:00 ` [RFC PATCH v6 70/92] kvm: x86: filter out access rights only when " Adalbert Lazăr
2019-08-13  9:08   ` Paolo Bonzini
2019-08-13 16:06     ` Adalbert Lazăr
2019-08-09 16:00 ` [RFC PATCH v6 71/92] mm: add support for remote mapping Adalbert Lazăr
2019-08-09 16:24   ` DANGER WILL ROBINSON, DANGER Matthew Wilcox
2019-08-13  9:29     ` Paolo Bonzini
2019-08-13 11:24       ` Matthew Wilcox
2019-08-13 12:02         ` Paolo Bonzini
2019-08-13 11:01     ` Adalbert Lazăr
2019-08-15 19:19       ` Jerome Glisse
2019-08-15 20:16         ` Jerome Glisse
2019-08-16 17:45           ` Jason Gunthorpe
2019-08-23 12:39           ` Mircea CIRJALIU - MELIU
2019-09-05 18:09             ` Jerome Glisse
2019-09-09 17:00               ` Paolo Bonzini
2019-09-10  7:49                 ` Mircea CIRJALIU - MELIU
2019-10-02 19:27                   ` Jerome Glisse
2019-10-02 13:46                     ` Paolo Bonzini
2019-10-02 14:15                       ` Jerome Glisse
2019-10-02 16:18                         ` Paolo Bonzini
2019-10-02 17:04                           ` Jerome Glisse
2019-10-02 20:10                             ` Paolo Bonzini
2019-10-03 15:42                               ` Jerome Glisse
2019-10-03 15:50                                 ` Paolo Bonzini
2019-10-03 16:42                                   ` Mircea CIRJALIU - MELIU
2019-10-03 18:31                                     ` Jerome Glisse
2019-10-03 19:38                                       ` Paolo Bonzini
2019-10-04  9:41                                         ` Mircea CIRJALIU - MELIU
2019-10-04 11:46                                           ` Paolo Bonzini
2019-10-03 16:36                               ` Mircea CIRJALIU - MELIU
2019-08-09 16:00 ` [RFC PATCH v6 72/92] kvm: introspection: add memory map/unmap support on the guest side Adalbert Lazăr
2019-08-09 16:00 ` [RFC PATCH v6 73/92] kvm: introspection: use remote mapping Adalbert Lazăr
2019-08-09 16:00 ` [RFC PATCH v6 74/92] kvm: x86: do not unconditionally patch the hypercall instruction during emulation Adalbert Lazăr
2019-08-13  9:20   ` Paolo Bonzini
2019-08-14 12:07     ` Adalbert Lazăr
     [not found]     ` <5d53f965.1c69fb81.cd952.035bSMTPIN_ADDED_BROKEN@mx.google.com>
2019-08-14 12:33       ` Paolo Bonzini
2019-08-09 16:00 ` [RFC PATCH v6 75/92] kvm: x86: disable gpa_available optimization in emulator_read_write_onepage() Adalbert Lazăr
2019-08-13  8:47   ` Paolo Bonzini
2019-08-13 14:33     ` Adalbert Lazăr
     [not found]     ` <5d52ca22.1c69fb81.4ceb8.e90bSMTPIN_ADDED_BROKEN@mx.google.com>
2019-08-13 14:35       ` Paolo Bonzini
2019-08-09 16:00 ` [RFC PATCH v6 76/92] kvm: x86: disable EPT A/D bits if introspection is present Adalbert Lazăr
2019-08-13  9:18   ` Paolo Bonzini
2019-08-09 16:00 ` [RFC PATCH v6 77/92] kvm: introspection: add trace functions Adalbert Lazăr
2019-08-09 16:00 ` [RFC PATCH v6 78/92] kvm: x86: add tracepoints for interrupt and exception injections Adalbert Lazăr
2019-08-09 16:00 ` [RFC PATCH v6 79/92] kvm: x86: emulate movsd xmm, m64 Adalbert Lazăr
2019-08-13  9:17   ` Paolo Bonzini
2019-08-09 16:00 ` [RFC PATCH v6 80/92] kvm: x86: emulate movss xmm, m32 Adalbert Lazăr
2019-08-09 16:00 ` [RFC PATCH v6 81/92] kvm: x86: emulate movq xmm, m64 Adalbert Lazăr
2019-08-09 16:00 ` [RFC PATCH v6 82/92] kvm: x86: emulate movq r, xmm Adalbert Lazăr
2019-08-09 16:00 ` [RFC PATCH v6 83/92] kvm: x86: emulate movd xmm, m32 Adalbert Lazăr
2019-08-09 16:00 ` [RFC PATCH v6 84/92] kvm: x86: enable the half part of movss, movsd, movups Adalbert Lazăr
2019-08-09 16:00 ` [RFC PATCH v6 85/92] kvm: x86: emulate lfence Adalbert Lazăr
2019-08-09 16:00 ` [RFC PATCH v6 86/92] kvm: x86: emulate xorpd xmm2/m128, xmm1 Adalbert Lazăr
2019-08-09 16:00 ` [RFC PATCH v6 87/92] kvm: x86: emulate xorps xmm/m128, xmm Adalbert Lazăr
2019-08-09 16:00 ` [RFC PATCH v6 88/92] kvm: x86: emulate fst/fstp m64fp Adalbert Lazăr
2019-08-09 16:00 ` [RFC PATCH v6 89/92] kvm: x86: make lock cmpxchg r, r/m atomic Adalbert Lazăr
2019-08-09 16:00 ` [RFC PATCH v6 90/92] kvm: x86: emulate lock cmpxchg8b atomically Adalbert Lazăr
2019-08-09 16:00 ` [RFC PATCH v6 91/92] kvm: x86: emulate lock cmpxchg16b m128 Adalbert Lazăr
2019-08-09 16:00 ` [RFC PATCH v6 92/92] kvm: x86: fallback to the single-step on multipage CMPXCHG emulation Adalbert Lazăr
2019-08-12 18:23 ` [RFC PATCH v6 00/92] VM introspection Sean Christopherson
2019-08-12 21:40 ` Sean Christopherson
2019-08-13  9:34 ` Paolo Bonzini

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