RDTSC(P) Exit

Context data for an exit caused by an rdtsc(p) instruction.

Note

This exit reason and its context structure apply to x64 partitions only.

Syntax

//
// Context data for an exit caused by a rdtsc(p) instruction (WHvRunVpExitReasonX64Rdtsc)
//
typedef union WHV_X64_RDTSC_INFO
{
    struct
    {
        UINT64 IsRdtscp:1;
        UINT64 Reserved:63;
    };

    UINT64 AsUINT64;
} WHV_X64_RDTSC_INFO;

typedef struct WHV_X64_RDTSC_CONTEXT
{
    UINT64 TscAux;
    UINT64 VirtualOffset;
    UINT64 Tsc;
    UINT64 ReferenceTime;
    WHV_X64_RDTSC_INFO RdtscInfo;
} WHV_X64_RDTSC_CONTEXT;

Remarks

Information about an RDTSC or RDTSCP instruction executed by the virtual processor is provided in the WHV_X64_RDTSC_CONTEXT structure.

Exits for the rdtsc and rdtscp instructions are only generated if they are enabled by setting the WHV_EXTENDED_VM_EXITS.X64RdtscExit property for the partition.

See also

• WHvRunVirtualProcessor
• Exit Contexts