--- /dev/null
+#ifndef _ASM_X86_HYPERV_H
+#define _ASM_X86_HYPERV_H
+
+#include "standard-headers/linux/types.h"
+
+/*
+ * The below CPUID leaves are present if VersionAndFeatures.HypervisorPresent
+ * is set by CPUID(HvCpuIdFunctionVersionAndFeatures).
+ */
+#define HYPERV_CPUID_VENDOR_AND_MAX_FUNCTIONS 0x40000000
+#define HYPERV_CPUID_INTERFACE 0x40000001
+#define HYPERV_CPUID_VERSION 0x40000002
+#define HYPERV_CPUID_FEATURES 0x40000003
+#define HYPERV_CPUID_ENLIGHTMENT_INFO 0x40000004
+#define HYPERV_CPUID_IMPLEMENT_LIMITS 0x40000005
+
+#define HYPERV_HYPERVISOR_PRESENT_BIT 0x80000000
+#define HYPERV_CPUID_MIN 0x40000005
+#define HYPERV_CPUID_MAX 0x4000ffff
+
+/*
+ * Feature identification. EAX indicates which features are available
+ * to the partition based upon the current partition privileges.
+ */
+
+/* VP Runtime (HV_X64_MSR_VP_RUNTIME) available */
+#define HV_X64_MSR_VP_RUNTIME_AVAILABLE (1 << 0)
+/* Partition Reference Counter (HV_X64_MSR_TIME_REF_COUNT) available*/
+#define HV_X64_MSR_TIME_REF_COUNT_AVAILABLE (1 << 1)
+/* Partition reference TSC MSR is available */
+#define HV_X64_MSR_REFERENCE_TSC_AVAILABLE (1 << 9)
+
+/* A partition's reference time stamp counter (TSC) page */
+#define HV_X64_MSR_REFERENCE_TSC 0x40000021
+
+/*
+ * There is a single feature flag that signifies the presence of the MSR
+ * that can be used to retrieve both the local APIC Timer frequency as
+ * well as the TSC frequency.
+ */
+
+/* Local APIC timer frequency MSR (HV_X64_MSR_APIC_FREQUENCY) is available */
+#define HV_X64_MSR_APIC_FREQUENCY_AVAILABLE (1 << 11)
+
+/* TSC frequency MSR (HV_X64_MSR_TSC_FREQUENCY) is available */
+#define HV_X64_MSR_TSC_FREQUENCY_AVAILABLE (1 << 11)
+
+/*
+ * Basic SynIC MSRs (HV_X64_MSR_SCONTROL through HV_X64_MSR_EOM
+ * and HV_X64_MSR_SINT0 through HV_X64_MSR_SINT15) available
+ */
+#define HV_X64_MSR_SYNIC_AVAILABLE (1 << 2)
+/*
+ * Synthetic Timer MSRs (HV_X64_MSR_STIMER0_CONFIG through
+ * HV_X64_MSR_STIMER3_COUNT) available
+ */
+#define HV_X64_MSR_SYNTIMER_AVAILABLE (1 << 3)
+/*
+ * APIC access MSRs (HV_X64_MSR_EOI, HV_X64_MSR_ICR and HV_X64_MSR_TPR)
+ * are available
+ */
+#define HV_X64_MSR_APIC_ACCESS_AVAILABLE (1 << 4)
+/* Hypercall MSRs (HV_X64_MSR_GUEST_OS_ID and HV_X64_MSR_HYPERCALL) available*/
+#define HV_X64_MSR_HYPERCALL_AVAILABLE (1 << 5)
+/* Access virtual processor index MSR (HV_X64_MSR_VP_INDEX) available*/
+#define HV_X64_MSR_VP_INDEX_AVAILABLE (1 << 6)
+/* Virtual system reset MSR (HV_X64_MSR_RESET) is available*/
+#define HV_X64_MSR_RESET_AVAILABLE (1 << 7)
+ /*
+ * Access statistics pages MSRs (HV_X64_MSR_STATS_PARTITION_RETAIL_PAGE,
+ * HV_X64_MSR_STATS_PARTITION_INTERNAL_PAGE, HV_X64_MSR_STATS_VP_RETAIL_PAGE,
+ * HV_X64_MSR_STATS_VP_INTERNAL_PAGE) available
+ */
+#define HV_X64_MSR_STAT_PAGES_AVAILABLE (1 << 8)
+
+/*
+ * Feature identification: EBX indicates which flags were specified at
+ * partition creation. The format is the same as the partition creation
+ * flag structure defined in section Partition Creation Flags.
+ */
+#define HV_X64_CREATE_PARTITIONS (1 << 0)
+#define HV_X64_ACCESS_PARTITION_ID (1 << 1)
+#define HV_X64_ACCESS_MEMORY_POOL (1 << 2)
+#define HV_X64_ADJUST_MESSAGE_BUFFERS (1 << 3)
+#define HV_X64_POST_MESSAGES (1 << 4)
+#define HV_X64_SIGNAL_EVENTS (1 << 5)
+#define HV_X64_CREATE_PORT (1 << 6)
+#define HV_X64_CONNECT_PORT (1 << 7)
+#define HV_X64_ACCESS_STATS (1 << 8)
+#define HV_X64_DEBUGGING (1 << 11)
+#define HV_X64_CPU_POWER_MANAGEMENT (1 << 12)
+#define HV_X64_CONFIGURE_PROFILER (1 << 13)
+
+/*
+ * Feature identification. EDX indicates which miscellaneous features
+ * are available to the partition.
+ */
+/* The MWAIT instruction is available (per section MONITOR / MWAIT) */
+#define HV_X64_MWAIT_AVAILABLE (1 << 0)
+/* Guest debugging support is available */
+#define HV_X64_GUEST_DEBUGGING_AVAILABLE (1 << 1)
+/* Performance Monitor support is available*/
+#define HV_X64_PERF_MONITOR_AVAILABLE (1 << 2)
+/* Support for physical CPU dynamic partitioning events is available*/
+#define HV_X64_CPU_DYNAMIC_PARTITIONING_AVAILABLE (1 << 3)
+/*
+ * Support for passing hypercall input parameter block via XMM
+ * registers is available
+ */
+#define HV_X64_HYPERCALL_PARAMS_XMM_AVAILABLE (1 << 4)
+/* Support for a virtual guest idle state is available */
+#define HV_X64_GUEST_IDLE_STATE_AVAILABLE (1 << 5)
+/* Guest crash data handler available */
+#define HV_X64_GUEST_CRASH_MSR_AVAILABLE (1 << 10)
+
+/*
+ * Implementation recommendations. Indicates which behaviors the hypervisor
+ * recommends the OS implement for optimal performance.
+ */
+ /*
+ * Recommend using hypercall for address space switches rather
+ * than MOV to CR3 instruction
+ */
+#define HV_X64_MWAIT_RECOMMENDED (1 << 0)
+/* Recommend using hypercall for local TLB flushes rather
+ * than INVLPG or MOV to CR3 instructions */
+#define HV_X64_LOCAL_TLB_FLUSH_RECOMMENDED (1 << 1)
+/*
+ * Recommend using hypercall for remote TLB flushes rather
+ * than inter-processor interrupts
+ */
+#define HV_X64_REMOTE_TLB_FLUSH_RECOMMENDED (1 << 2)
+/*
+ * Recommend using MSRs for accessing APIC registers
+ * EOI, ICR and TPR rather than their memory-mapped counterparts
+ */
+#define HV_X64_APIC_ACCESS_RECOMMENDED (1 << 3)
+/* Recommend using the hypervisor-provided MSR to initiate a system RESET */
+#define HV_X64_SYSTEM_RESET_RECOMMENDED (1 << 4)
+/*
+ * Recommend using relaxed timing for this partition. If used,
+ * the VM should disable any watchdog timeouts that rely on the
+ * timely delivery of external interrupts
+ */
+#define HV_X64_RELAXED_TIMING_RECOMMENDED (1 << 5)
+
+/* MSR used to identify the guest OS. */
+#define HV_X64_MSR_GUEST_OS_ID 0x40000000
+
+/* MSR used to setup pages used to communicate with the hypervisor. */
+#define HV_X64_MSR_HYPERCALL 0x40000001
+
+/* MSR used to provide vcpu index */
+#define HV_X64_MSR_VP_INDEX 0x40000002
+
+/* MSR used to reset the guest OS. */
+#define HV_X64_MSR_RESET 0x40000003
+
+/* MSR used to provide vcpu runtime in 100ns units */
+#define HV_X64_MSR_VP_RUNTIME 0x40000010
+
+/* MSR used to read the per-partition time reference counter */
+#define HV_X64_MSR_TIME_REF_COUNT 0x40000020
+
+/* MSR used to retrieve the TSC frequency */
+#define HV_X64_MSR_TSC_FREQUENCY 0x40000022
+
+/* MSR used to retrieve the local APIC timer frequency */
+#define HV_X64_MSR_APIC_FREQUENCY 0x40000023
+
+/* Define the virtual APIC registers */
+#define HV_X64_MSR_EOI 0x40000070
+#define HV_X64_MSR_ICR 0x40000071
+#define HV_X64_MSR_TPR 0x40000072
+#define HV_X64_MSR_APIC_ASSIST_PAGE 0x40000073
+
+/* Define synthetic interrupt controller model specific registers. */
+#define HV_X64_MSR_SCONTROL 0x40000080
+#define HV_X64_MSR_SVERSION 0x40000081
+#define HV_X64_MSR_SIEFP 0x40000082
+#define HV_X64_MSR_SIMP 0x40000083
+#define HV_X64_MSR_EOM 0x40000084
+#define HV_X64_MSR_SINT0 0x40000090
+#define HV_X64_MSR_SINT1 0x40000091
+#define HV_X64_MSR_SINT2 0x40000092
+#define HV_X64_MSR_SINT3 0x40000093
+#define HV_X64_MSR_SINT4 0x40000094
+#define HV_X64_MSR_SINT5 0x40000095
+#define HV_X64_MSR_SINT6 0x40000096
+#define HV_X64_MSR_SINT7 0x40000097
+#define HV_X64_MSR_SINT8 0x40000098
+#define HV_X64_MSR_SINT9 0x40000099
+#define HV_X64_MSR_SINT10 0x4000009A
+#define HV_X64_MSR_SINT11 0x4000009B
+#define HV_X64_MSR_SINT12 0x4000009C
+#define HV_X64_MSR_SINT13 0x4000009D
+#define HV_X64_MSR_SINT14 0x4000009E
+#define HV_X64_MSR_SINT15 0x4000009F
+
+/*
+ * Synthetic Timer MSRs. Four timers per vcpu.
+ */
+#define HV_X64_MSR_STIMER0_CONFIG 0x400000B0
+#define HV_X64_MSR_STIMER0_COUNT 0x400000B1
+#define HV_X64_MSR_STIMER1_CONFIG 0x400000B2
+#define HV_X64_MSR_STIMER1_COUNT 0x400000B3
+#define HV_X64_MSR_STIMER2_CONFIG 0x400000B4
+#define HV_X64_MSR_STIMER2_COUNT 0x400000B5
+#define HV_X64_MSR_STIMER3_CONFIG 0x400000B6
+#define HV_X64_MSR_STIMER3_COUNT 0x400000B7
+
+/* Hyper-V guest crash notification MSR's */
+#define HV_X64_MSR_CRASH_P0 0x40000100
+#define HV_X64_MSR_CRASH_P1 0x40000101
+#define HV_X64_MSR_CRASH_P2 0x40000102
+#define HV_X64_MSR_CRASH_P3 0x40000103
+#define HV_X64_MSR_CRASH_P4 0x40000104
+#define HV_X64_MSR_CRASH_CTL 0x40000105
+#define HV_X64_MSR_CRASH_CTL_NOTIFY (1ULL << 63)
+#define HV_X64_MSR_CRASH_PARAMS \
+ (1 + (HV_X64_MSR_CRASH_P4 - HV_X64_MSR_CRASH_P0))
+
+#define HV_X64_MSR_HYPERCALL_ENABLE 0x00000001
+#define HV_X64_MSR_HYPERCALL_PAGE_ADDRESS_SHIFT 12
+#define HV_X64_MSR_HYPERCALL_PAGE_ADDRESS_MASK \
+ (~((1ull << HV_X64_MSR_HYPERCALL_PAGE_ADDRESS_SHIFT) - 1))
+
+/* Declare the various hypercall operations. */
+#define HVCALL_NOTIFY_LONG_SPIN_WAIT 0x0008
+#define HVCALL_POST_MESSAGE 0x005c
+#define HVCALL_SIGNAL_EVENT 0x005d
+
+#define HV_X64_MSR_APIC_ASSIST_PAGE_ENABLE 0x00000001
+#define HV_X64_MSR_APIC_ASSIST_PAGE_ADDRESS_SHIFT 12
+#define HV_X64_MSR_APIC_ASSIST_PAGE_ADDRESS_MASK \
+ (~((1ull << HV_X64_MSR_APIC_ASSIST_PAGE_ADDRESS_SHIFT) - 1))
+
+#define HV_X64_MSR_TSC_REFERENCE_ENABLE 0x00000001
+#define HV_X64_MSR_TSC_REFERENCE_ADDRESS_SHIFT 12
+
+#define HV_PROCESSOR_POWER_STATE_C0 0
+#define HV_PROCESSOR_POWER_STATE_C1 1
+#define HV_PROCESSOR_POWER_STATE_C2 2
+#define HV_PROCESSOR_POWER_STATE_C3 3
+
+/* hypercall status code */
+#define HV_STATUS_SUCCESS 0
+#define HV_STATUS_INVALID_HYPERCALL_CODE 2
+#define HV_STATUS_INVALID_HYPERCALL_INPUT 3
+#define HV_STATUS_INVALID_ALIGNMENT 4
+#define HV_STATUS_INSUFFICIENT_MEMORY 11
+#define HV_STATUS_INVALID_CONNECTION_ID 18
+#define HV_STATUS_INSUFFICIENT_BUFFERS 19
+
+typedef struct _HV_REFERENCE_TSC_PAGE {
+ uint32_t tsc_sequence;
+ uint32_t res1;
+ uint64_t tsc_scale;
+ int64_t tsc_offset;
+} HV_REFERENCE_TSC_PAGE, *PHV_REFERENCE_TSC_PAGE;
+
+/* Define the number of synthetic interrupt sources. */
+#define HV_SYNIC_SINT_COUNT (16)
+/* Define the expected SynIC version. */
+#define HV_SYNIC_VERSION_1 (0x1)
+
+#define HV_SYNIC_CONTROL_ENABLE (1ULL << 0)
+#define HV_SYNIC_SIMP_ENABLE (1ULL << 0)
+#define HV_SYNIC_SIEFP_ENABLE (1ULL << 0)
+#define HV_SYNIC_SINT_MASKED (1ULL << 16)
+#define HV_SYNIC_SINT_AUTO_EOI (1ULL << 17)
+#define HV_SYNIC_SINT_VECTOR_MASK (0xFF)
+
+#define HV_SYNIC_STIMER_COUNT (4)
+
+/* Define synthetic interrupt controller message constants. */
+#define HV_MESSAGE_SIZE (256)
+#define HV_MESSAGE_PAYLOAD_BYTE_COUNT (240)
+#define HV_MESSAGE_PAYLOAD_QWORD_COUNT (30)
+
+/* Define hypervisor message types. */
+enum hv_message_type {
+ HVMSG_NONE = 0x00000000,
+
+ /* Memory access messages. */
+ HVMSG_UNMAPPED_GPA = 0x80000000,
+ HVMSG_GPA_INTERCEPT = 0x80000001,
+
+ /* Timer notification messages. */
+ HVMSG_TIMER_EXPIRED = 0x80000010,
+
+ /* Error messages. */
+ HVMSG_INVALID_VP_REGISTER_VALUE = 0x80000020,
+ HVMSG_UNRECOVERABLE_EXCEPTION = 0x80000021,
+ HVMSG_UNSUPPORTED_FEATURE = 0x80000022,
+
+ /* Trace buffer complete messages. */
+ HVMSG_EVENTLOG_BUFFERCOMPLETE = 0x80000040,
+
+ /* Platform-specific processor intercept messages. */
+ HVMSG_X64_IOPORT_INTERCEPT = 0x80010000,
+ HVMSG_X64_MSR_INTERCEPT = 0x80010001,
+ HVMSG_X64_CPUID_INTERCEPT = 0x80010002,
+ HVMSG_X64_EXCEPTION_INTERCEPT = 0x80010003,
+ HVMSG_X64_APIC_EOI = 0x80010004,
+ HVMSG_X64_LEGACY_FP_ERROR = 0x80010005
+};
+
+/* Define synthetic interrupt controller message flags. */
+union hv_message_flags {
+ uint8_t asu8;
+ struct {
+ uint8_t msg_pending:1;
+ uint8_t reserved:7;
+ };
+};
+
+/* Define port identifier type. */
+union hv_port_id {
+ uint32_t asu32;
+ struct {
+ uint32_t id:24;
+ uint32_t reserved:8;
+ } u;
+};
+
+/* Define synthetic interrupt controller message header. */
+struct hv_message_header {
+ uint32_t message_type;
+ uint8_t payload_size;
+ union hv_message_flags message_flags;
+ uint8_t reserved[2];
+ union {
+ uint64_t sender;
+ union hv_port_id port;
+ };
+};
+
+/* Define synthetic interrupt controller message format. */
+struct hv_message {
+ struct hv_message_header header;
+ union {
+ uint64_t payload[HV_MESSAGE_PAYLOAD_QWORD_COUNT];
+ } u;
+};
+
+/* Define the synthetic interrupt message page layout. */
+struct hv_message_page {
+ struct hv_message sint_message[HV_SYNIC_SINT_COUNT];
+};
+
+/* Define timer message payload structure. */
+struct hv_timer_message_payload {
+ uint32_t timer_index;
+ uint32_t reserved;
+ uint64_t expiration_time; /* When the timer expired */
+ uint64_t delivery_time; /* When the message was delivered */
+};
+
+#define HV_STIMER_ENABLE (1ULL << 0)
+#define HV_STIMER_PERIODIC (1ULL << 1)
+#define HV_STIMER_LAZY (1ULL << 2)
+#define HV_STIMER_AUTOENABLE (1ULL << 3)
+#define HV_STIMER_SINT(config) (uint8_t)(((config) >> 16) & 0x0F)
+
+#endif
Code Review / kvmfornfv.git / blobdiff