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hyperv: Add definitions for syndbg 

Add all required definitions for hyperv synthetic debugger interface.

Signed-off-by: Jon Doron <arilou@gmail.com>
Reviewed-by: Emanuele Giuseppe Esposito <eesposit@redhat.com>
Message-Id: <20220216102500.692781-3-arilou@gmail.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
Jon Doron 2022-02-16 12:24:58 +02:00 committed by Paolo Bonzini
parent 64ddecc88b
commit ccbdf5e81b
2 changed files with 89 additions and 0 deletions
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52
include/hw/hyperv/hyperv-proto.h
View File

@ -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
/*
* 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)
/*
@ -127,4 +132,51 @@ struct hyperv_event_flags_page {
struct hyperv_event_flags slot[HV_SINT_COUNT];
};
/*
* 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

37
target/i386/kvm/hyperv-proto.h
View File

@ -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)
/*
* 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)
/*
* 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
/*
* 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 @@
#define HV_STIMER_COUNT 4
/*
* 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))
#endif