search for: kvmi_vcpu_get_xcr

...ion/virt/kvm/kvmi.rst +++ b/Documentation/virt/kvm/kvmi.rst @@ -809,6 +809,39 @@ Provides the maximum GFN allocated to the VM by walking through all memory slots allocated by KVM. Stricly speaking, the returned value refers to the first inaccessible GFN, next to the maximum accessible GFN. +18. KVMI_VCPU_GET_XCR +--------------------- + +:Architecture: x86 +:Versions: >= 1 +:Parameters: + +:: + + struct kvmi_vcpu_hdr; + struct kvmi_vcpu_get_xcr { + __u8 xcr; + __u8 padding[7]; + }; + +:Returns: + +:: + + struct kvmi_error_code; + struct kvmi_vcpu_get_xcr_reply { + u64 value; + }; + +Returns th...

..._mtrr_get_guest_memory_type(vcpu, gpa_to_gfn(gpa)); + + return 0; +} diff --git a/include/uapi/linux/kvmi.h b/include/uapi/linux/kvmi.h index 441586cec238..207bcaeec05a 100644 --- a/include/uapi/linux/kvmi.h +++ b/include/uapi/linux/kvmi.h @@ -39,9 +39,10 @@ enum { KVMI_VM_GET_MAX_GFN = 17, - KVMI_VCPU_GET_XCR = 18, - KVMI_VCPU_GET_XSAVE = 19, - KVMI_VCPU_SET_XSAVE = 20, + KVMI_VCPU_GET_XCR = 18, + KVMI_VCPU_GET_XSAVE = 19, + KVMI_VCPU_SET_XSAVE = 20, + KVMI_VCPU_GET_MTRR_TYPE = 21, KVMI_NUM_MESSAGES }; diff --git a/tools/testing/selftests/kvm/x86_64/kvmi_test.c b/tools/testing/selftes...

...OMEM - there is not enough memory to allocate the reply + Events ====== diff --git a/arch/x86/include/uapi/asm/kvmi.h b/arch/x86/include/uapi/asm/kvmi.h index cc4cb85366c8..a165c259ba0e 100644 --- a/arch/x86/include/uapi/asm/kvmi.h +++ b/arch/x86/include/uapi/asm/kvmi.h @@ -99,4 +99,8 @@ struct kvmi_vcpu_get_xcr_reply { u64 value; }; +struct kvmi_vcpu_get_xsave_reply { + __u32 region[0]; +}; + #endif /* _UAPI_ASM_X86_KVMI_H */ diff --git a/arch/x86/kvm/kvmi.c b/arch/x86/kvm/kvmi.c index ff70c9a33ccf..7b7122784f0f 100644 --- a/arch/x86/kvm/kvmi.c +++ b/arch/x86/kvm/kvmi.c @@ -737,3 +737,27 @@ int kvmi...

...err = kvm_vcpu_ioctl_x86_set_xsave(vcpu, area); + kfree(area); + + return err ? -KVM_EINVAL : 0; +} diff --git a/include/uapi/linux/kvmi.h b/include/uapi/linux/kvmi.h index 6b5662f54ba1..441586cec238 100644 --- a/include/uapi/linux/kvmi.h +++ b/include/uapi/linux/kvmi.h @@ -41,6 +41,7 @@ enum { KVMI_VCPU_GET_XCR = 18, KVMI_VCPU_GET_XSAVE = 19, + KVMI_VCPU_SET_XSAVE = 20, KVMI_NUM_MESSAGES }; diff --git a/tools/testing/selftests/kvm/x86_64/kvmi_test.c b/tools/testing/selftests/kvm/x86_64/kvmi_test.c index 657684ec6ff5..30741983a3ab 100644 --- a/tools/testing/selftests/kvm/x86_64/kvmi_test.c +++ b/too...

...ing the UAPI headers from kvmi_host.h) - fix the clean-up for KVMI_VCPU_SINGLESTEP [Mathieu] - extend KVMI_VM_SET_PAGE_ACCESS with the 'visible' option - improve KVMI_VM_GET_MAX_GFN (skip read-only, invalid or non-user memslots) - add KVMI_VM_CONTROL_CLEANUP [Tamas, Mathieu] - add KVMI_VCPU_GET_XCR and KVMI_VCPU_SET_XSAVE (SSE emulation) - move KVM_REQ_INTROSPECTION in the range of arch-independent requests - better split of x86 vs arch-independent code - cover more error codes with tools/testing/selftests/kvm/x86_64/kvmi_test.c - remove more error messages and close the introspection...

This patch series is based on the VM introspection patches (https://lore.kernel.org/kvm/20200721210922.7646-1-alazar at bitdefender.com/), extending the introspection API with EPT Views and Virtualization Exceptions (#VE) support. The purpose of this series is to get an initial feedback and to see if we are on the right track, especially because the changes made to add the EPT views are not small