From: "Adalbert Lazăr" <alazar@bitdefender.com> To: kvm@vger.kernel.org Cc: virtualization@lists.linux-foundation.org, "Paolo Bonzini" <pbonzini@redhat.com>, "Adalbert Lazăr" <alazar@bitdefender.com>, "Edwin Zhai" <edwin.zhai@intel.com>, "Jan Kiszka" <jan.kiszka@siemens.com>, "Konrad Rzeszutek Wilk" <konrad.wilk@oracle.com>, "Mathieu Tarral" <mathieu.tarral@protonmail.com>, "Patrick Colp" <patrick.colp@oracle.com>, "Samuel Laurén" <samuel.lauren@iki.fi>, "Stefan Hajnoczi" <stefanha@redhat.com>, "Tamas K Lengyel" <tamas@tklengyel.com>, "Weijiang Yang" <weijiang.yang@intel.com>, "Yu C Zhang" <yu.c.zhang@intel.com>, "Sean Christopherson" <seanjc@google.com>, "Joerg Roedel" <joro@8bytes.org>, "Vitaly Kuznetsov" <vkuznets@redhat.com>, "Wanpeng Li" <wanpengli@tencent.com>, "Jim Mattson" <jmattson@google.com> Subject: [PATCH v10 00/81] VM introspection Date: Wed, 25 Nov 2020 11:34:39 +0200 [thread overview] Message-ID: <20201125093600.2766-1-alazar@bitdefender.com> (raw) 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 (shadow page table level faults, key MSR writes, hypercalls etc.). Some notifications can be responded to with an action (like preventing an MSR from being written), others are mere informative (like breakpoint events which can be used for execution tracing). With few exceptions, all events are optional. An application using this subsystem will explicitly register for them. The use case that gave way for the creation of this subsystem is to monitor the guest OS and as such the ABI/API is highly influenced by how the guest software (kernel, applications) sees the world. For example, some events provide information specific for the host CPU architecture (eg. MSR_IA32_SYSENTER_EIP) merely because its leveraged by guest software to implement a critical feature (fast system calls). At the moment, the target audience for KVMI are security software authors that wish to perform forensics on newly discovered threats (exploits) or to implement another layer of security like preventing a large set of kernel rootkits simply by "locking" the kernel image in the shadow page tables (ie. enforce .text r-x, .rodata rw- etc.). It's the latter case that made KVMI a separate subsystem, even though many of these features are available in the device manager. The ability to build a security application that does not interfere (in terms of performance) with the guest software asks for a specialized interface that is designed for minimum overhead. This patch series is based on kvm/next, commit dc924b062488 ("KVM: SVM: check CR4 changes against vcpu->arch"). The previous version (v9) can be read here: https://lore.kernel.org/kvm/20200721210922.7646-1-alazar@bitdefender.com/ Patches 1-31: make preparatory changes Patches 32-79: add basic introspection capabilities Patch 80: support introspection tools that write-protect guest page tables Patch 81: notify the introspection tool even on emulation failures (when the read/write callbacks used by the emulator, kvm_page_preread/kvm_page_prewrite, are not invoked) Changes since v9: - rebase on 5.10 from 5.8 - complete the split of x86 and arch-independent code - split the VM and vCPU events - clean up the interface headers (VM vs vCPU messages/events) - clean up the tests - add a new exit code (for the CRASH action) instead of killing the vCPU threads [Christoph] - other small changes (code refactoring, message validation, etc.). Adalbert Lazăr (24): KVM: UAPI: add error codes used by the VM introspection code KVM: add kvm_vcpu_kick_and_wait() KVM: doc: fix the hypercalls numbering KVM: x86: add kvm_x86_ops.control_cr3_intercept() KVM: x86: add kvm_x86_ops.desc_ctrl_supported() KVM: x86: add kvm_x86_ops.control_desc_intercept() KVM: x86: export kvm_vcpu_ioctl_x86_set_xsave() KVM: introspection: add hook/unhook ioctls KVM: introspection: add permission access ioctls KVM: introspection: add the read/dispatch message function KVM: introspection: add KVMI_GET_VERSION KVM: introspection: add KVMI_VM_CHECK_COMMAND and KVMI_VM_CHECK_EVENT KVM: introspection: add KVM_INTROSPECTION_PREUNHOOK KVM: introspection: add KVMI_VM_EVENT_UNHOOK KVM: introspection: add KVMI_VM_CONTROL_EVENTS KVM: introspection: add a jobs list to every introspected vCPU KVM: introspection: add KVMI_VM_PAUSE_VCPU KVM: introspection: add support for vCPU events KVM: introspection: add KVMI_VCPU_EVENT_PAUSE KVM: introspection: add KVMI_VM_CONTROL_CLEANUP KVM: introspection: add KVMI_VCPU_GET_XCR KVM: introspection: add KVMI_VCPU_SET_XSAVE KVM: introspection: extend KVMI_GET_VERSION with struct kvmi_features KVM: introspection: add KVMI_VCPU_TRANSLATE_GVA Marian Rotariu (1): KVM: introspection: add KVMI_VCPU_GET_CPUID Mihai Donțu (33): KVM: x86: add kvm_arch_vcpu_get_regs() and kvm_arch_vcpu_get_sregs() KVM: x86: avoid injecting #PF when emulate the VMCALL instruction KVM: x86: add kvm_x86_ops.control_msr_intercept() KVM: x86: vmx: use a symbolic constant when checking the exit qualifications KVM: x86: save the error code during EPT/NPF exits handling KVM: x86: add kvm_x86_ops.fault_gla() KVM: x86: extend kvm_mmu_gva_to_gpa_system() with the 'access' parameter KVM: x86: page track: provide all callbacks with the guest virtual address KVM: x86: page track: add track_create_slot() callback KVM: x86: page_track: add support for preread, prewrite and preexec KVM: x86: wire in the preread/prewrite/preexec page trackers KVM: introduce VM introspection KVM: introspection: add KVMI_VM_GET_INFO KVM: introspection: add KVMI_VM_READ_PHYSICAL/KVMI_VM_WRITE_PHYSICAL KVM: introspection: handle vCPU introspection requests KVM: introspection: handle vCPU commands KVM: introspection: add KVMI_VCPU_GET_INFO KVM: introspection: add the crash action handling on the event reply KVM: introspection: add KVMI_VCPU_CONTROL_EVENTS KVM: introspection: add KVMI_VCPU_GET_REGISTERS KVM: introspection: add KVMI_VCPU_SET_REGISTERS KVM: introspection: add KVMI_VCPU_EVENT_HYPERCALL KVM: introspection: add KVMI_VCPU_EVENT_BREAKPOINT KVM: introspection: add KVMI_VCPU_CONTROL_CR and KVMI_VCPU_EVENT_CR KVM: introspection: add KVMI_VCPU_INJECT_EXCEPTION + KVMI_VCPU_EVENT_TRAP KVM: introspection: add KVMI_VCPU_EVENT_XSETBV KVM: introspection: add KVMI_VCPU_GET_XSAVE KVM: introspection: add KVMI_VCPU_GET_MTRR_TYPE KVM: introspection: add KVMI_VCPU_CONTROL_MSR and KVMI_VCPU_EVENT_MSR KVM: introspection: add KVMI_VM_SET_PAGE_ACCESS KVM: introspection: add KVMI_VCPU_EVENT_PF KVM: introspection: emulate a guest page table walk on SPT violations due to A/D bit updates KVM: x86: call the page tracking code on emulation failure Mircea Cîrjaliu (2): KVM: x86: disable gpa_available optimization for fetch and page-walk SPT violations KVM: introspection: add vCPU related data Nicușor Cîțu (19): KVM: x86: add kvm_arch_vcpu_set_regs() KVM: x86: add kvm_x86_ops.bp_intercepted() KVM: x86: add kvm_x86_ops.cr3_write_intercepted() KVM: svm: add support for descriptor-table VM-exits KVM: x86: add kvm_x86_ops.desc_intercepted() KVM: x86: add kvm_x86_ops.msr_write_intercepted() KVM: x86: svm: use the vmx convention to control the MSR interception KVM: x86: add kvm_x86_ops.control_singlestep() KVM: x86: export kvm_arch_vcpu_set_guest_debug() KVM: x86: export kvm_inject_pending_exception() KVM: x86: export kvm_vcpu_ioctl_x86_get_xsave() KVM: introspection: add cleanup support for vCPUs KVM: introspection: restore the state of #BP interception on unhook KVM: introspection: restore the state of CR3 interception on unhook KVM: introspection: add KVMI_VCPU_EVENT_DESCRIPTOR KVM: introspection: restore the state of descriptor-table register interception on unhook KVM: introspection: restore the state of MSR interception on unhook KVM: introspection: add KVMI_VCPU_CONTROL_SINGLESTEP KVM: introspection: add KVMI_VCPU_EVENT_SINGLESTEP Ștefan Șicleru (2): KVM: add kvm_get_max_gfn() KVM: introspection: add KVMI_VM_GET_MAX_GFN Documentation/virt/kvm/api.rst | 159 ++ Documentation/virt/kvm/hypercalls.rst | 39 +- Documentation/virt/kvm/kvmi.rst | 1573 +++++++++++++ arch/x86/include/asm/kvm_host.h | 41 +- arch/x86/include/asm/kvm_page_track.h | 71 +- arch/x86/include/asm/kvmi_host.h | 110 + arch/x86/include/asm/vmx.h | 2 + arch/x86/include/uapi/asm/kvmi.h | 167 ++ arch/x86/kvm/Kconfig | 9 + arch/x86/kvm/Makefile | 2 + arch/x86/kvm/emulate.c | 4 + arch/x86/kvm/kvm_emulate.h | 1 + arch/x86/kvm/kvmi.c | 1131 ++++++++++ arch/x86/kvm/kvmi.h | 24 + arch/x86/kvm/kvmi_msg.c | 457 ++++ arch/x86/kvm/mmu/mmu.c | 140 +- arch/x86/kvm/mmu/mmu_internal.h | 4 + arch/x86/kvm/mmu/page_track.c | 146 +- arch/x86/kvm/mmu/spte.c | 17 + arch/x86/kvm/svm/svm.c | 288 ++- arch/x86/kvm/svm/svm.h | 7 + arch/x86/kvm/vmx/capabilities.h | 7 +- arch/x86/kvm/vmx/vmx.c | 168 +- arch/x86/kvm/vmx/vmx.h | 4 - arch/x86/kvm/x86.c | 305 ++- drivers/gpu/drm/i915/gvt/kvmgt.c | 2 +- include/linux/kvm_host.h | 20 + include/linux/kvmi_host.h | 110 + include/uapi/linux/kvm.h | 20 + include/uapi/linux/kvm_para.h | 5 + include/uapi/linux/kvmi.h | 245 ++ tools/testing/selftests/kvm/Makefile | 1 + .../testing/selftests/kvm/x86_64/kvmi_test.c | 2005 +++++++++++++++++ virt/kvm/introspection/kvmi.c | 1263 +++++++++++ virt/kvm/introspection/kvmi_int.h | 129 ++ virt/kvm/introspection/kvmi_msg.c | 910 ++++++++ virt/kvm/kvm_main.c | 95 + 37 files changed, 9519 insertions(+), 162 deletions(-) create mode 100644 Documentation/virt/kvm/kvmi.rst create mode 100644 arch/x86/include/asm/kvmi_host.h create mode 100644 arch/x86/include/uapi/asm/kvmi.h create mode 100644 arch/x86/kvm/kvmi.c create mode 100644 arch/x86/kvm/kvmi.h create mode 100644 arch/x86/kvm/kvmi_msg.c create mode 100644 include/linux/kvmi_host.h create mode 100644 include/uapi/linux/kvmi.h create mode 100644 tools/testing/selftests/kvm/x86_64/kvmi_test.c create mode 100644 virt/kvm/introspection/kvmi.c create mode 100644 virt/kvm/introspection/kvmi_int.h create mode 100644 virt/kvm/introspection/kvmi_msg.c base-commit: dc924b062488a0376aae41d3e0a27dc99f852a5e CC: Edwin Zhai <edwin.zhai@intel.com> CC: Jan Kiszka <jan.kiszka@siemens.com> CC: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> CC: Mathieu Tarral <mathieu.tarral@protonmail.com> CC: Patrick Colp <patrick.colp@oracle.com> CC: Samuel Laurén <samuel.lauren@iki.fi> CC: Stefan Hajnoczi <stefanha@redhat.com> CC: Tamas K Lengyel <tamas@tklengyel.com> CC: Weijiang Yang <weijiang.yang@intel.com> CC: Yu C Zhang <yu.c.zhang@intel.com> CC: Sean Christopherson <seanjc@google.com> CC: Joerg Roedel <joro@8bytes.org> CC: Vitaly Kuznetsov <vkuznets@redhat.com> CC: Wanpeng Li <wanpengli@tencent.com> CC: Jim Mattson <jmattson@google.com>
WARNING: multiple messages have this Message-ID (diff)
From: "Adalbert Lazăr" <alazar@bitdefender.com> To: kvm@vger.kernel.org Cc: "Tamas K Lengyel" <tamas@tklengyel.com>, "Wanpeng Li" <wanpengli@tencent.com>, "Yu C Zhang" <yu.c.zhang@intel.com>, "Edwin Zhai" <edwin.zhai@intel.com>, "Konrad Rzeszutek Wilk" <konrad.wilk@oracle.com>, "Jan Kiszka" <jan.kiszka@siemens.com>, "Samuel Laurén" <samuel.lauren@iki.fi>, virtualization@lists.linux-foundation.org, "Adalbert Lazăr" <alazar@bitdefender.com>, "Weijiang Yang" <weijiang.yang@intel.com>, "Patrick Colp" <patrick.colp@oracle.com>, "Mathieu Tarral" <mathieu.tarral@protonmail.com>, "Stefan Hajnoczi" <stefanha@redhat.com>, "Sean Christopherson" <seanjc@google.com>, "Paolo Bonzini" <pbonzini@redhat.com>, "Joerg Roedel" <joro@8bytes.org>, "Jim Mattson" <jmattson@google.com> Subject: [PATCH v10 00/81] VM introspection Date: Wed, 25 Nov 2020 11:34:39 +0200 [thread overview] Message-ID: <20201125093600.2766-1-alazar@bitdefender.com> (raw) 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 (shadow page table level faults, key MSR writes, hypercalls etc.). Some notifications can be responded to with an action (like preventing an MSR from being written), others are mere informative (like breakpoint events which can be used for execution tracing). With few exceptions, all events are optional. An application using this subsystem will explicitly register for them. The use case that gave way for the creation of this subsystem is to monitor the guest OS and as such the ABI/API is highly influenced by how the guest software (kernel, applications) sees the world. For example, some events provide information specific for the host CPU architecture (eg. MSR_IA32_SYSENTER_EIP) merely because its leveraged by guest software to implement a critical feature (fast system calls). At the moment, the target audience for KVMI are security software authors that wish to perform forensics on newly discovered threats (exploits) or to implement another layer of security like preventing a large set of kernel rootkits simply by "locking" the kernel image in the shadow page tables (ie. enforce .text r-x, .rodata rw- etc.). It's the latter case that made KVMI a separate subsystem, even though many of these features are available in the device manager. The ability to build a security application that does not interfere (in terms of performance) with the guest software asks for a specialized interface that is designed for minimum overhead. This patch series is based on kvm/next, commit dc924b062488 ("KVM: SVM: check CR4 changes against vcpu->arch"). The previous version (v9) can be read here: https://lore.kernel.org/kvm/20200721210922.7646-1-alazar@bitdefender.com/ Patches 1-31: make preparatory changes Patches 32-79: add basic introspection capabilities Patch 80: support introspection tools that write-protect guest page tables Patch 81: notify the introspection tool even on emulation failures (when the read/write callbacks used by the emulator, kvm_page_preread/kvm_page_prewrite, are not invoked) Changes since v9: - rebase on 5.10 from 5.8 - complete the split of x86 and arch-independent code - split the VM and vCPU events - clean up the interface headers (VM vs vCPU messages/events) - clean up the tests - add a new exit code (for the CRASH action) instead of killing the vCPU threads [Christoph] - other small changes (code refactoring, message validation, etc.). Adalbert Lazăr (24): KVM: UAPI: add error codes used by the VM introspection code KVM: add kvm_vcpu_kick_and_wait() KVM: doc: fix the hypercalls numbering KVM: x86: add kvm_x86_ops.control_cr3_intercept() KVM: x86: add kvm_x86_ops.desc_ctrl_supported() KVM: x86: add kvm_x86_ops.control_desc_intercept() KVM: x86: export kvm_vcpu_ioctl_x86_set_xsave() KVM: introspection: add hook/unhook ioctls KVM: introspection: add permission access ioctls KVM: introspection: add the read/dispatch message function KVM: introspection: add KVMI_GET_VERSION KVM: introspection: add KVMI_VM_CHECK_COMMAND and KVMI_VM_CHECK_EVENT KVM: introspection: add KVM_INTROSPECTION_PREUNHOOK KVM: introspection: add KVMI_VM_EVENT_UNHOOK KVM: introspection: add KVMI_VM_CONTROL_EVENTS KVM: introspection: add a jobs list to every introspected vCPU KVM: introspection: add KVMI_VM_PAUSE_VCPU KVM: introspection: add support for vCPU events KVM: introspection: add KVMI_VCPU_EVENT_PAUSE KVM: introspection: add KVMI_VM_CONTROL_CLEANUP KVM: introspection: add KVMI_VCPU_GET_XCR KVM: introspection: add KVMI_VCPU_SET_XSAVE KVM: introspection: extend KVMI_GET_VERSION with struct kvmi_features KVM: introspection: add KVMI_VCPU_TRANSLATE_GVA Marian Rotariu (1): KVM: introspection: add KVMI_VCPU_GET_CPUID Mihai Donțu (33): KVM: x86: add kvm_arch_vcpu_get_regs() and kvm_arch_vcpu_get_sregs() KVM: x86: avoid injecting #PF when emulate the VMCALL instruction KVM: x86: add kvm_x86_ops.control_msr_intercept() KVM: x86: vmx: use a symbolic constant when checking the exit qualifications KVM: x86: save the error code during EPT/NPF exits handling KVM: x86: add kvm_x86_ops.fault_gla() KVM: x86: extend kvm_mmu_gva_to_gpa_system() with the 'access' parameter KVM: x86: page track: provide all callbacks with the guest virtual address KVM: x86: page track: add track_create_slot() callback KVM: x86: page_track: add support for preread, prewrite and preexec KVM: x86: wire in the preread/prewrite/preexec page trackers KVM: introduce VM introspection KVM: introspection: add KVMI_VM_GET_INFO KVM: introspection: add KVMI_VM_READ_PHYSICAL/KVMI_VM_WRITE_PHYSICAL KVM: introspection: handle vCPU introspection requests KVM: introspection: handle vCPU commands KVM: introspection: add KVMI_VCPU_GET_INFO KVM: introspection: add the crash action handling on the event reply KVM: introspection: add KVMI_VCPU_CONTROL_EVENTS KVM: introspection: add KVMI_VCPU_GET_REGISTERS KVM: introspection: add KVMI_VCPU_SET_REGISTERS KVM: introspection: add KVMI_VCPU_EVENT_HYPERCALL KVM: introspection: add KVMI_VCPU_EVENT_BREAKPOINT KVM: introspection: add KVMI_VCPU_CONTROL_CR and KVMI_VCPU_EVENT_CR KVM: introspection: add KVMI_VCPU_INJECT_EXCEPTION + KVMI_VCPU_EVENT_TRAP KVM: introspection: add KVMI_VCPU_EVENT_XSETBV KVM: introspection: add KVMI_VCPU_GET_XSAVE KVM: introspection: add KVMI_VCPU_GET_MTRR_TYPE KVM: introspection: add KVMI_VCPU_CONTROL_MSR and KVMI_VCPU_EVENT_MSR KVM: introspection: add KVMI_VM_SET_PAGE_ACCESS KVM: introspection: add KVMI_VCPU_EVENT_PF KVM: introspection: emulate a guest page table walk on SPT violations due to A/D bit updates KVM: x86: call the page tracking code on emulation failure Mircea Cîrjaliu (2): KVM: x86: disable gpa_available optimization for fetch and page-walk SPT violations KVM: introspection: add vCPU related data Nicușor Cîțu (19): KVM: x86: add kvm_arch_vcpu_set_regs() KVM: x86: add kvm_x86_ops.bp_intercepted() KVM: x86: add kvm_x86_ops.cr3_write_intercepted() KVM: svm: add support for descriptor-table VM-exits KVM: x86: add kvm_x86_ops.desc_intercepted() KVM: x86: add kvm_x86_ops.msr_write_intercepted() KVM: x86: svm: use the vmx convention to control the MSR interception KVM: x86: add kvm_x86_ops.control_singlestep() KVM: x86: export kvm_arch_vcpu_set_guest_debug() KVM: x86: export kvm_inject_pending_exception() KVM: x86: export kvm_vcpu_ioctl_x86_get_xsave() KVM: introspection: add cleanup support for vCPUs KVM: introspection: restore the state of #BP interception on unhook KVM: introspection: restore the state of CR3 interception on unhook KVM: introspection: add KVMI_VCPU_EVENT_DESCRIPTOR KVM: introspection: restore the state of descriptor-table register interception on unhook KVM: introspection: restore the state of MSR interception on unhook KVM: introspection: add KVMI_VCPU_CONTROL_SINGLESTEP KVM: introspection: add KVMI_VCPU_EVENT_SINGLESTEP Ștefan Șicleru (2): KVM: add kvm_get_max_gfn() KVM: introspection: add KVMI_VM_GET_MAX_GFN Documentation/virt/kvm/api.rst | 159 ++ Documentation/virt/kvm/hypercalls.rst | 39 +- Documentation/virt/kvm/kvmi.rst | 1573 +++++++++++++ arch/x86/include/asm/kvm_host.h | 41 +- arch/x86/include/asm/kvm_page_track.h | 71 +- arch/x86/include/asm/kvmi_host.h | 110 + arch/x86/include/asm/vmx.h | 2 + arch/x86/include/uapi/asm/kvmi.h | 167 ++ arch/x86/kvm/Kconfig | 9 + arch/x86/kvm/Makefile | 2 + arch/x86/kvm/emulate.c | 4 + arch/x86/kvm/kvm_emulate.h | 1 + arch/x86/kvm/kvmi.c | 1131 ++++++++++ arch/x86/kvm/kvmi.h | 24 + arch/x86/kvm/kvmi_msg.c | 457 ++++ arch/x86/kvm/mmu/mmu.c | 140 +- arch/x86/kvm/mmu/mmu_internal.h | 4 + arch/x86/kvm/mmu/page_track.c | 146 +- arch/x86/kvm/mmu/spte.c | 17 + arch/x86/kvm/svm/svm.c | 288 ++- arch/x86/kvm/svm/svm.h | 7 + arch/x86/kvm/vmx/capabilities.h | 7 +- arch/x86/kvm/vmx/vmx.c | 168 +- arch/x86/kvm/vmx/vmx.h | 4 - arch/x86/kvm/x86.c | 305 ++- drivers/gpu/drm/i915/gvt/kvmgt.c | 2 +- include/linux/kvm_host.h | 20 + include/linux/kvmi_host.h | 110 + include/uapi/linux/kvm.h | 20 + include/uapi/linux/kvm_para.h | 5 + include/uapi/linux/kvmi.h | 245 ++ tools/testing/selftests/kvm/Makefile | 1 + .../testing/selftests/kvm/x86_64/kvmi_test.c | 2005 +++++++++++++++++ virt/kvm/introspection/kvmi.c | 1263 +++++++++++ virt/kvm/introspection/kvmi_int.h | 129 ++ virt/kvm/introspection/kvmi_msg.c | 910 ++++++++ virt/kvm/kvm_main.c | 95 + 37 files changed, 9519 insertions(+), 162 deletions(-) create mode 100644 Documentation/virt/kvm/kvmi.rst create mode 100644 arch/x86/include/asm/kvmi_host.h create mode 100644 arch/x86/include/uapi/asm/kvmi.h create mode 100644 arch/x86/kvm/kvmi.c create mode 100644 arch/x86/kvm/kvmi.h create mode 100644 arch/x86/kvm/kvmi_msg.c create mode 100644 include/linux/kvmi_host.h create mode 100644 include/uapi/linux/kvmi.h create mode 100644 tools/testing/selftests/kvm/x86_64/kvmi_test.c create mode 100644 virt/kvm/introspection/kvmi.c create mode 100644 virt/kvm/introspection/kvmi_int.h create mode 100644 virt/kvm/introspection/kvmi_msg.c base-commit: dc924b062488a0376aae41d3e0a27dc99f852a5e CC: Edwin Zhai <edwin.zhai@intel.com> CC: Jan Kiszka <jan.kiszka@siemens.com> CC: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> CC: Mathieu Tarral <mathieu.tarral@protonmail.com> CC: Patrick Colp <patrick.colp@oracle.com> CC: Samuel Laurén <samuel.lauren@iki.fi> CC: Stefan Hajnoczi <stefanha@redhat.com> CC: Tamas K Lengyel <tamas@tklengyel.com> CC: Weijiang Yang <weijiang.yang@intel.com> CC: Yu C Zhang <yu.c.zhang@intel.com> CC: Sean Christopherson <seanjc@google.com> CC: Joerg Roedel <joro@8bytes.org> CC: Vitaly Kuznetsov <vkuznets@redhat.com> CC: Wanpeng Li <wanpengli@tencent.com> CC: Jim Mattson <jmattson@google.com> _______________________________________________ Virtualization mailing list Virtualization@lists.linux-foundation.org https://lists.linuxfoundation.org/mailman/listinfo/virtualization
next reply other threads:[~2020-11-25 9:42 UTC|newest] Thread overview: 192+ messages / expand[flat|nested] mbox.gz Atom feed top 2020-11-25 9:34 Adalbert Lazăr [this message] 2020-11-25 9:34 ` [PATCH v10 00/81] VM introspection Adalbert Lazăr 2020-11-25 9:34 ` [PATCH v10 01/81] KVM: UAPI: add error codes used by the VM introspection code Adalbert Lazăr 2020-11-25 9:34 ` Adalbert Lazăr 2020-11-25 9:34 ` [PATCH v10 02/81] KVM: add kvm_vcpu_kick_and_wait() Adalbert Lazăr 2020-11-25 9:34 ` Adalbert Lazăr 2020-11-25 9:34 ` [PATCH v10 03/81] KVM: add kvm_get_max_gfn() Adalbert Lazăr 2020-11-25 9:34 ` Adalbert Lazăr 2020-11-25 9:34 ` [PATCH v10 04/81] KVM: doc: fix the hypercalls numbering Adalbert Lazăr 2020-11-25 9:34 ` Adalbert Lazăr 2020-11-25 9:34 ` [PATCH v10 05/81] KVM: x86: add kvm_arch_vcpu_get_regs() and kvm_arch_vcpu_get_sregs() Adalbert Lazăr 2020-11-25 9:34 ` Adalbert Lazăr 2020-11-25 9:34 ` [PATCH v10 06/81] KVM: x86: add kvm_arch_vcpu_set_regs() Adalbert Lazăr 2020-11-25 9:34 ` Adalbert Lazăr 2020-11-25 9:34 ` [PATCH v10 07/81] KVM: x86: avoid injecting #PF when emulate the VMCALL instruction Adalbert Lazăr 2020-11-25 9:34 ` Adalbert Lazăr 2020-11-25 9:34 ` [PATCH v10 08/81] KVM: x86: add kvm_x86_ops.bp_intercepted() Adalbert Lazăr 2020-11-25 9:34 ` Adalbert Lazăr 2020-11-25 9:34 ` [PATCH v10 09/81] KVM: x86: add kvm_x86_ops.control_cr3_intercept() Adalbert Lazăr 2020-11-25 9:34 ` Adalbert Lazăr 2020-11-25 9:34 ` [PATCH v10 10/81] KVM: x86: add kvm_x86_ops.cr3_write_intercepted() Adalbert Lazăr 2020-11-25 9:34 ` Adalbert Lazăr 2020-11-25 9:34 ` [PATCH v10 11/81] KVM: x86: add kvm_x86_ops.desc_ctrl_supported() Adalbert Lazăr 2020-11-25 9:34 ` Adalbert Lazăr 2020-11-25 9:34 ` [PATCH v10 12/81] KVM: svm: add support for descriptor-table VM-exits Adalbert Lazăr 2020-11-25 9:34 ` Adalbert Lazăr 2020-11-25 9:34 ` [PATCH v10 13/81] KVM: x86: add kvm_x86_ops.control_desc_intercept() Adalbert Lazăr 2020-11-25 9:34 ` Adalbert Lazăr 2020-11-25 9:34 ` [PATCH v10 14/81] KVM: x86: add kvm_x86_ops.desc_intercepted() Adalbert Lazăr 2020-11-25 9:34 ` Adalbert Lazăr 2020-11-25 9:34 ` [PATCH v10 15/81] KVM: x86: add kvm_x86_ops.msr_write_intercepted() Adalbert Lazăr 2020-11-25 9:34 ` Adalbert Lazăr 2020-11-25 9:34 ` [PATCH v10 16/81] KVM: x86: svm: use the vmx convention to control the MSR interception Adalbert Lazăr 2020-11-25 9:34 ` Adalbert Lazăr 2020-11-25 9:34 ` [PATCH v10 17/81] KVM: x86: add kvm_x86_ops.control_msr_intercept() Adalbert Lazăr 2020-11-25 9:34 ` Adalbert Lazăr 2020-11-25 9:34 ` [PATCH v10 18/81] KVM: x86: vmx: use a symbolic constant when checking the exit qualifications Adalbert Lazăr 2020-11-25 9:34 ` Adalbert Lazăr 2020-11-25 9:34 ` [PATCH v10 19/81] KVM: x86: save the error code during EPT/NPF exits handling Adalbert Lazăr 2020-11-25 9:34 ` Adalbert Lazăr 2020-11-25 9:34 ` [PATCH v10 20/81] KVM: x86: add kvm_x86_ops.fault_gla() Adalbert Lazăr 2020-11-25 9:34 ` Adalbert Lazăr 2020-11-25 9:35 ` [PATCH v10 21/81] KVM: x86: add kvm_x86_ops.control_singlestep() Adalbert Lazăr 2020-11-25 9:35 ` Adalbert Lazăr 2020-11-25 9:35 ` [PATCH v10 22/81] KVM: x86: export kvm_arch_vcpu_set_guest_debug() Adalbert Lazăr 2020-11-25 9:35 ` Adalbert Lazăr 2020-11-25 9:35 ` [PATCH v10 23/81] KVM: x86: extend kvm_mmu_gva_to_gpa_system() with the 'access' parameter Adalbert Lazăr 2020-11-25 9:35 ` Adalbert Lazăr 2020-11-25 9:35 ` [PATCH v10 24/81] KVM: x86: export kvm_inject_pending_exception() Adalbert Lazăr 2020-11-25 9:35 ` Adalbert Lazăr 2020-11-25 9:35 ` [PATCH v10 25/81] KVM: x86: export kvm_vcpu_ioctl_x86_get_xsave() Adalbert Lazăr 2020-11-25 9:35 ` Adalbert Lazăr 2020-11-25 12:19 ` kernel test robot 2020-11-25 12:19 ` kernel test robot 2020-11-25 12:19 ` kernel test robot 2020-11-25 12:24 ` kernel test robot 2020-11-25 12:24 ` kernel test robot 2020-11-25 12:24 ` kernel test robot 2020-11-25 9:35 ` [PATCH v10 26/81] KVM: x86: export kvm_vcpu_ioctl_x86_set_xsave() Adalbert Lazăr 2020-11-25 9:35 ` Adalbert Lazăr 2020-11-25 9:35 ` [PATCH v10 27/81] KVM: x86: page track: provide all callbacks with the guest virtual address Adalbert Lazăr 2020-11-25 9:35 ` Adalbert Lazăr 2020-11-25 9:35 ` [PATCH v10 28/81] KVM: x86: page track: add track_create_slot() callback Adalbert Lazăr 2020-11-25 9:35 ` Adalbert Lazăr 2020-11-25 9:35 ` [PATCH v10 29/81] KVM: x86: page_track: add support for preread, prewrite and preexec Adalbert Lazăr 2020-11-25 9:35 ` Adalbert Lazăr 2020-11-25 9:35 ` [PATCH v10 30/81] KVM: x86: wire in the preread/prewrite/preexec page trackers Adalbert Lazăr 2020-11-25 9:35 ` Adalbert Lazăr 2020-11-25 9:35 ` [PATCH v10 31/81] KVM: x86: disable gpa_available optimization for fetch and page-walk SPT violations Adalbert Lazăr 2020-11-25 9:35 ` Adalbert Lazăr 2020-11-25 9:35 ` [PATCH v10 32/81] KVM: introduce VM introspection Adalbert Lazăr 2020-11-25 9:35 ` Adalbert Lazăr 2020-11-25 12:45 ` kernel test robot 2020-11-25 12:45 ` kernel test robot 2020-11-25 12:45 ` kernel test robot 2020-11-25 13:41 ` kernel test robot 2020-11-25 13:41 ` kernel test robot 2020-11-25 13:41 ` kernel test robot 2020-11-25 16:24 ` kernel test robot 2020-11-25 16:24 ` kernel test robot 2020-11-25 16:24 ` kernel test robot 2020-11-25 9:35 ` [PATCH v10 33/81] KVM: introspection: add hook/unhook ioctls Adalbert Lazăr 2020-11-25 9:35 ` Adalbert Lazăr 2020-11-25 11:49 ` kernel test robot 2020-11-25 11:49 ` kernel test robot 2020-11-25 9:35 ` [PATCH v10 34/81] KVM: introspection: add permission access ioctls Adalbert Lazăr 2020-11-25 9:35 ` Adalbert Lazăr 2020-11-25 9:35 ` [PATCH v10 35/81] KVM: introspection: add the read/dispatch message function Adalbert Lazăr 2020-11-25 9:35 ` Adalbert Lazăr 2020-11-25 9:35 ` [PATCH v10 36/81] KVM: introspection: add KVMI_GET_VERSION Adalbert Lazăr 2020-11-25 9:35 ` Adalbert Lazăr 2020-11-25 9:35 ` [PATCH v10 37/81] KVM: introspection: add KVMI_VM_CHECK_COMMAND and KVMI_VM_CHECK_EVENT Adalbert Lazăr 2020-11-25 9:35 ` Adalbert Lazăr 2020-11-25 9:35 ` [PATCH v10 38/81] KVM: introspection: add KVMI_VM_GET_INFO Adalbert Lazăr 2020-11-25 9:35 ` Adalbert Lazăr 2020-11-25 9:35 ` [PATCH v10 39/81] KVM: introspection: add KVM_INTROSPECTION_PREUNHOOK Adalbert Lazăr 2020-11-25 9:35 ` Adalbert Lazăr 2020-11-25 9:35 ` [PATCH v10 40/81] KVM: introspection: add KVMI_VM_EVENT_UNHOOK Adalbert Lazăr 2020-11-25 9:35 ` Adalbert Lazăr 2020-11-25 9:35 ` [PATCH v10 41/81] KVM: introspection: add KVMI_VM_CONTROL_EVENTS Adalbert Lazăr 2020-11-25 9:35 ` Adalbert Lazăr 2020-11-25 9:35 ` [PATCH v10 42/81] KVM: introspection: add KVMI_VM_READ_PHYSICAL/KVMI_VM_WRITE_PHYSICAL Adalbert Lazăr 2020-11-25 9:35 ` Adalbert Lazăr 2020-11-25 9:35 ` [PATCH v10 43/81] KVM: introspection: add vCPU related data Adalbert Lazăr 2020-11-25 9:35 ` Adalbert Lazăr 2020-11-25 9:35 ` [PATCH v10 44/81] KVM: introspection: add a jobs list to every introspected vCPU Adalbert Lazăr 2020-11-25 9:35 ` Adalbert Lazăr 2020-11-25 9:35 ` [PATCH v10 45/81] KVM: introspection: handle vCPU introspection requests Adalbert Lazăr 2020-11-25 9:35 ` Adalbert Lazăr 2020-11-25 9:35 ` [PATCH v10 46/81] KVM: introspection: handle vCPU commands Adalbert Lazăr 2020-11-25 9:35 ` Adalbert Lazăr 2020-11-25 9:35 ` [PATCH v10 47/81] KVM: introspection: add KVMI_VCPU_GET_INFO Adalbert Lazăr 2020-11-25 9:35 ` Adalbert Lazăr 2020-11-25 9:35 ` [PATCH v10 48/81] KVM: introspection: add KVMI_VM_PAUSE_VCPU Adalbert Lazăr 2020-11-25 9:35 ` Adalbert Lazăr 2020-11-25 9:35 ` [PATCH v10 49/81] KVM: introspection: add support for vCPU events Adalbert Lazăr 2020-11-25 9:35 ` Adalbert Lazăr 2020-11-25 9:35 ` [PATCH v10 50/81] KVM: introspection: add KVMI_VCPU_EVENT_PAUSE Adalbert Lazăr 2020-11-25 9:35 ` Adalbert Lazăr 2020-11-25 9:35 ` [PATCH v10 51/81] KVM: introspection: add the crash action handling on the event reply Adalbert Lazăr 2020-11-25 9:35 ` Adalbert Lazăr 2020-11-25 9:35 ` [PATCH v10 52/81] KVM: introspection: add KVMI_VCPU_CONTROL_EVENTS Adalbert Lazăr 2020-11-25 9:35 ` Adalbert Lazăr 2020-11-25 9:35 ` [PATCH v10 53/81] KVM: introspection: add KVMI_VCPU_GET_REGISTERS Adalbert Lazăr 2020-11-25 9:35 ` Adalbert Lazăr 2020-11-25 9:35 ` [PATCH v10 54/81] KVM: introspection: add KVMI_VCPU_SET_REGISTERS Adalbert Lazăr 2020-11-25 9:35 ` Adalbert Lazăr 2020-11-25 9:35 ` [PATCH v10 55/81] KVM: introspection: add KVMI_VCPU_GET_CPUID Adalbert Lazăr 2020-11-25 9:35 ` Adalbert Lazăr 2020-11-25 9:35 ` [PATCH v10 56/81] KVM: introspection: add KVMI_VCPU_EVENT_HYPERCALL Adalbert Lazăr 2020-11-25 9:35 ` Adalbert Lazăr 2020-11-25 9:35 ` [PATCH v10 57/81] KVM: introspection: add KVMI_VCPU_EVENT_BREAKPOINT Adalbert Lazăr 2020-11-25 9:35 ` Adalbert Lazăr 2020-11-25 9:35 ` [PATCH v10 58/81] KVM: introspection: add cleanup support for vCPUs Adalbert Lazăr 2020-11-25 9:35 ` Adalbert Lazăr 2020-11-25 9:35 ` [PATCH v10 59/81] KVM: introspection: restore the state of #BP interception on unhook Adalbert Lazăr 2020-11-25 9:35 ` Adalbert Lazăr 2020-11-25 9:35 ` [PATCH v10 60/81] KVM: introspection: add KVMI_VM_CONTROL_CLEANUP Adalbert Lazăr 2020-11-25 9:35 ` Adalbert Lazăr 2020-11-25 9:35 ` [PATCH v10 61/81] KVM: introspection: add KVMI_VCPU_CONTROL_CR and KVMI_VCPU_EVENT_CR Adalbert Lazăr 2020-11-25 9:35 ` Adalbert Lazăr 2020-11-25 9:35 ` [PATCH v10 62/81] KVM: introspection: restore the state of CR3 interception on unhook Adalbert Lazăr 2020-11-25 9:35 ` Adalbert Lazăr 2020-11-25 9:35 ` [PATCH v10 63/81] KVM: introspection: add KVMI_VCPU_INJECT_EXCEPTION + KVMI_VCPU_EVENT_TRAP Adalbert Lazăr 2020-11-25 9:35 ` Adalbert Lazăr 2020-11-25 12:57 ` kernel test robot 2020-11-25 12:57 ` kernel test robot 2020-11-25 9:35 ` [PATCH v10 64/81] KVM: introspection: add KVMI_VM_GET_MAX_GFN Adalbert Lazăr 2020-11-25 9:35 ` Adalbert Lazăr 2020-11-25 9:35 ` [PATCH v10 65/81] KVM: introspection: add KVMI_VCPU_EVENT_XSETBV Adalbert Lazăr 2020-11-25 9:35 ` Adalbert Lazăr 2020-11-25 9:35 ` [PATCH v10 66/81] KVM: introspection: add KVMI_VCPU_GET_XCR Adalbert Lazăr 2020-11-25 9:35 ` Adalbert Lazăr 2020-11-25 15:22 ` kernel test robot 2020-11-25 15:22 ` kernel test robot 2020-11-25 15:22 ` kernel test robot 2020-11-25 9:35 ` [PATCH v10 67/81] KVM: introspection: add KVMI_VCPU_GET_XSAVE Adalbert Lazăr 2020-11-25 9:35 ` Adalbert Lazăr 2020-11-25 13:50 ` kernel test robot 2020-11-25 13:50 ` kernel test robot 2020-11-25 9:35 ` [PATCH v10 68/81] KVM: introspection: add KVMI_VCPU_SET_XSAVE Adalbert Lazăr 2020-11-25 9:35 ` Adalbert Lazăr 2020-11-25 9:35 ` [PATCH v10 69/81] KVM: introspection: add KVMI_VCPU_GET_MTRR_TYPE Adalbert Lazăr 2020-11-25 9:35 ` Adalbert Lazăr 2020-11-25 9:35 ` [PATCH v10 70/81] KVM: introspection: add KVMI_VCPU_EVENT_DESCRIPTOR Adalbert Lazăr 2020-11-25 9:35 ` Adalbert Lazăr 2020-11-25 9:35 ` [PATCH v10 71/81] KVM: introspection: restore the state of descriptor-table register interception on unhook Adalbert Lazăr 2020-11-25 9:35 ` Adalbert Lazăr 2020-11-25 9:35 ` [PATCH v10 72/81] KVM: introspection: add KVMI_VCPU_CONTROL_MSR and KVMI_VCPU_EVENT_MSR Adalbert Lazăr 2020-11-25 9:35 ` Adalbert Lazăr 2020-11-25 9:35 ` [PATCH v10 73/81] KVM: introspection: restore the state of MSR interception on unhook Adalbert Lazăr 2020-11-25 9:35 ` Adalbert Lazăr 2020-11-25 9:35 ` [PATCH v10 74/81] KVM: introspection: add KVMI_VM_SET_PAGE_ACCESS Adalbert Lazăr 2020-11-25 9:35 ` Adalbert Lazăr 2020-11-25 9:35 ` [PATCH v10 75/81] KVM: introspection: add KVMI_VCPU_EVENT_PF Adalbert Lazăr 2020-11-25 9:35 ` Adalbert Lazăr 2020-11-25 14:44 ` kernel test robot 2020-11-25 14:44 ` kernel test robot 2020-11-25 9:35 ` [PATCH v10 76/81] KVM: introspection: extend KVMI_GET_VERSION with struct kvmi_features Adalbert Lazăr 2020-11-25 9:35 ` Adalbert Lazăr 2020-11-25 9:35 ` [PATCH v10 77/81] KVM: introspection: add KVMI_VCPU_CONTROL_SINGLESTEP Adalbert Lazăr 2020-11-25 9:35 ` Adalbert Lazăr 2020-11-25 9:35 ` [PATCH v10 78/81] KVM: introspection: add KVMI_VCPU_EVENT_SINGLESTEP Adalbert Lazăr 2020-11-25 9:35 ` Adalbert Lazăr 2020-11-25 9:35 ` [PATCH v10 79/81] KVM: introspection: add KVMI_VCPU_TRANSLATE_GVA Adalbert Lazăr 2020-11-25 9:35 ` Adalbert Lazăr 2020-11-25 15:46 ` kernel test robot 2020-11-25 15:46 ` kernel test robot 2020-11-25 9:35 ` [PATCH v10 80/81] KVM: introspection: emulate a guest page table walk on SPT violations due to A/D bit updates Adalbert Lazăr 2020-11-25 9:35 ` Adalbert Lazăr 2020-11-25 9:36 ` [PATCH v10 81/81] KVM: x86: call the page tracking code on emulation failure Adalbert Lazăr 2020-11-25 9:36 ` Adalbert Lazăr
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