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Signed-off-by: Jon Doron Reviewed-by: Emanuele Giuseppe Esposito Message-Id: <20220216102500.692781-3-arilou@gmail.com> Signed-off-by: Paolo Bonzini --- include/hw/hyperv/hyperv-proto.h | 52 ++++++++++++++++++++++++++++++++ target/i386/kvm/hyperv-proto.h | 37 +++++++++++++++++++++++ 2 files changed, 89 insertions(+) diff --git a/include/hw/hyperv/hyperv-proto.h b/include/hw/hyperv/hyperv-pr= oto.h index 21dc28aee9..4a2297307b 100644 --- a/include/hw/hyperv/hyperv-proto.h +++ b/include/hw/hyperv/hyperv-proto.h @@ -24,12 +24,17 @@ #define HV_STATUS_INVALID_PORT_ID 17 #define HV_STATUS_INVALID_CONNECTION_ID 18 #define HV_STATUS_INSUFFICIENT_BUFFERS 19 +#define HV_STATUS_NOT_ACKNOWLEDGED 20 +#define HV_STATUS_NO_DATA 27 =20 /* * Hypercall numbers */ #define HV_POST_MESSAGE 0x005c #define HV_SIGNAL_EVENT 0x005d +#define HV_POST_DEBUG_DATA 0x0069 +#define HV_RETRIEVE_DEBUG_DATA 0x006a +#define HV_RESET_DEBUG_SESSION 0x006b #define HV_HYPERCALL_FAST (1u << 16) =20 /* @@ -127,4 +132,51 @@ struct hyperv_event_flags_page { struct hyperv_event_flags slot[HV_SINT_COUNT]; }; =20 +/* + * Kernel debugger structures + */ + +/* Options flags for hyperv_reset_debug_session */ +#define HV_DEBUG_PURGE_INCOMING_DATA 0x00000001 +#define HV_DEBUG_PURGE_OUTGOING_DATA 0x00000002 +struct hyperv_reset_debug_session_input { + uint32_t options; +} __attribute__ ((__packed__)); + +struct hyperv_reset_debug_session_output { + uint32_t host_ip; + uint32_t target_ip; + uint16_t host_port; + uint16_t target_port; + uint8_t host_mac[6]; + uint8_t target_mac[6]; +} __attribute__ ((__packed__)); + +/* Options for hyperv_post_debug_data */ +#define HV_DEBUG_POST_LOOP 0x00000001 + +struct hyperv_post_debug_data_input { + uint32_t count; + uint32_t options; + /*uint8_t data[HV_HYP_PAGE_SIZE - 2 * sizeof(uint32_t)];*/ +} __attribute__ ((__packed__)); + +struct hyperv_post_debug_data_output { + uint32_t pending_count; +} __attribute__ ((__packed__)); + +/* Options for hyperv_retrieve_debug_data */ +#define HV_DEBUG_RETRIEVE_LOOP 0x00000001 +#define HV_DEBUG_RETRIEVE_TEST_ACTIVITY 0x00000002 + +struct hyperv_retrieve_debug_data_input { + uint32_t count; + uint32_t options; + uint64_t timeout; +} __attribute__ ((__packed__)); + +struct hyperv_retrieve_debug_data_output { + uint32_t retrieved_count; + uint32_t remaining_count; +} __attribute__ ((__packed__)); #endif diff --git a/target/i386/kvm/hyperv-proto.h b/target/i386/kvm/hyperv-proto.h index 89f81afda7..e40e59411c 100644 --- a/target/i386/kvm/hyperv-proto.h +++ b/target/i386/kvm/hyperv-proto.h @@ -19,6 +19,9 @@ #define HV_CPUID_ENLIGHTMENT_INFO 0x40000004 #define HV_CPUID_IMPLEMENT_LIMITS 0x40000005 #define HV_CPUID_NESTED_FEATURES 0x4000000A +#define HV_CPUID_SYNDBG_VENDOR_AND_MAX_FUNCTIONS 0x40000080 +#define HV_CPUID_SYNDBG_INTERFACE 0x40000081 +#define HV_CPUID_SYNDBG_PLATFORM_CAPABILITIES 0x40000082 #define HV_CPUID_MIN 0x40000005 #define HV_CPUID_MAX 0x4000ffff #define HV_HYPERVISOR_PRESENT_BIT 0x80000000 @@ -55,8 +58,14 @@ #define HV_GUEST_IDLE_STATE_AVAILABLE (1u << 5) #define HV_FREQUENCY_MSRS_AVAILABLE (1u << 8) #define HV_GUEST_CRASH_MSR_AVAILABLE (1u << 10) +#define HV_FEATURE_DEBUG_MSRS_AVAILABLE (1u << 11) #define HV_STIMER_DIRECT_MODE_AVAILABLE (1u << 19) =20 +/* + * HV_CPUID_FEATURES.EBX bits + */ +#define HV_PARTITION_DEBUGGING_ALLOWED (1u << 12) + /* * HV_CPUID_ENLIGHTMENT_INFO.EAX bits */ @@ -72,6 +81,11 @@ #define HV_ENLIGHTENED_VMCS_RECOMMENDED (1u << 14) #define HV_NO_NONARCH_CORESHARING (1u << 18) =20 +/* + * HV_CPUID_SYNDBG_PLATFORM_CAPABILITIES.EAX bits + */ +#define HV_SYNDBG_CAP_ALLOW_KERNEL_DEBUGGING (1u << 1) + /* * Basic virtualized MSRs */ @@ -130,6 +144,18 @@ #define HV_X64_MSR_STIMER3_CONFIG 0x400000B6 #define HV_X64_MSR_STIMER3_COUNT 0x400000B7 =20 +/* + * Hyper-V Synthetic debug options MSR + */ +#define HV_X64_MSR_SYNDBG_CONTROL 0x400000F1 +#define HV_X64_MSR_SYNDBG_STATUS 0x400000F2 +#define HV_X64_MSR_SYNDBG_SEND_BUFFER 0x400000F3 +#define HV_X64_MSR_SYNDBG_RECV_BUFFER 0x400000F4 +#define HV_X64_MSR_SYNDBG_PENDING_BUFFER 0x400000F5 +#define HV_X64_MSR_SYNDBG_OPTIONS 0x400000FF + +#define HV_X64_SYNDBG_OPTION_USE_HCALLS BIT(2) + /* * Guest crash notification MSRs */ @@ -168,5 +194,16 @@ =20 #define HV_STIMER_COUNT 4 =20 +/* + * Synthetic debugger control definitions + */ +#define HV_SYNDBG_CONTROL_SEND (1u << 0) +#define HV_SYNDBG_CONTROL_RECV (1u << 1) +#define HV_SYNDBG_CONTROL_SEND_SIZE(ctl) ((ctl >> 16) & 0xffff) +#define HV_SYNDBG_STATUS_INVALID (0) +#define HV_SYNDBG_STATUS_SEND_SUCCESS (1u << 0) +#define HV_SYNDBG_STATUS_RECV_SUCCESS (1u << 2) +#define HV_SYNDBG_STATUS_RESET (1u << 3) +#define HV_SYNDBG_STATUS_SET_SIZE(st, sz) (st | (sz << 16)) =20 #endif --=20 2.35.1