# hv_vmx_get_msr_info(_:_:) Returns information about guest MSR configuration. ``` func hv_vmx_get_msr_info(_ field: hv_vmx_msr_info_t, _ value: UnsafeMutablePointer) -> hv_return_t ``` ## Parameters `field` The ID of the MSR to examine. `value` A pointer to the info field value written by Hypervisor on a successful operation. ## Return Value [`HV_SUCCESS`](/documentation/Hypervisor/HV_SUCCESS) if the operation was successful, otherwise an error code specified in [`hv_return_t`](/documentation/Hypervisor/hv_return_t). ## Discussion --- Copyright © 2026 Apple Inc. All rights reserved. | [Terms of Use](https://www.apple.com/legal/internet-services/terms/site.html) | [Privacy Policy](https://www.apple.com/privacy/privacy-policy)