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Arm64 Reset Exit

Context data for an Arm64 exit caused by a virtual processor reset request.

Note

This exit reason and its context structure apply to Arm64 partitions only.

Syntax

//
// Context data for an exit caused by a reset request
// (WHvRunVpExitReasonArm64Reset)
//
typedef enum WHV_ARM64_RESET_TYPE
{
    WHvArm64ResetTypePowerOff = 0,
    WHvArm64ResetTypeReboot
} WHV_ARM64_RESET_TYPE;

typedef struct WHV_ARM64_RESET_CONTEXT
{
    WHV_INTERCEPT_MESSAGE_HEADER Header;
    WHV_ARM64_RESET_TYPE ResetType;
    UINT32 Reserved;
} WHV_ARM64_RESET_CONTEXT;

Remarks

Information about an exit caused by the guest requesting a reset is provided in the WHV_ARM64_RESET_CONTEXT structure. The exit is reported with the WHvRunVpExitReasonArm64Reset exit reason (0x8001000c).

The Header member is a WHV_INTERCEPT_MESSAGE_HEADER, which reports the program counter (Pc) and saved processor state (Cpsr) at the time of the request.

The ResetType member is a WHV_ARM64_RESET_TYPE value that indicates the kind of reset the guest requested:

  • WHvArm64ResetTypePowerOff — the guest requested a power off.
  • WHvArm64ResetTypeReboot — the guest requested a reboot.

The virtualization stack is responsible for carrying out the requested action, for example by tearing down or reinitializing the partition.

See also

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