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RDTSC(P)

  • [アーティクル]

Syntax

//
// Context data for an exit caused by an 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 Reserved[2];
    WHV_X64_RDTSC_INFO RdtscInfo;
} WHV_X64_RDTSC_CONTEXT;

Return Value

Information about a rdtsc(p) instruction from the virtual processor is provided in the WHV_VP_EXCEPTION_CONTEXT structure. 

Exits for exceptions are only generated if they are enabled by setting the WHV_EXTENDED_VM_EXITS.X64RdtscExit property for the partition.

Requirements

Minimum supported build: Insider Preview Builds (19H2) Experimental