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TLFS defined 2 vMSRs which can be used by Windows guest to get the TSC/APIC frequencies from hypervisor. This patch adds the support of HV_X64_MSR_TSC_FREQUENCY/HV_X64_MSR_APIC_FREQUENCY vMSRS whose availability is exposed by CPUID.0x40000003:EAX[bit11] and EDX[bit8]. v1->v2: - revise commit message to highlight that the changes are for WaaG Tracked-On: #7876 Signed-off-by: Jian Jun Chen <jian.jun.chen@intel.com> Reviewed-by: Zhao Yakui <yakui.zhao@intel.com> Reviewed-by: Fei Li <fei1.li@intel.com>
ACRN Hypervisor ############### The open source `Project ACRN`_ defines a device hypervisor reference stack and an architecture for running multiple software subsystems, managed securely, on a consolidated system by means of a virtual machine manager. It also defines a reference framework implementation for virtual device emulation, called the "ACRN Device Model". The ACRN Hypervisor is a Type 1 reference hypervisor stack, running directly on the bare-metal hardware, and is suitable for a variety of IoT and embedded device solutions. The ACRN hypervisor addresses the gap that currently exists between datacenter hypervisors, and hard partitioning hypervisors. The ACRN hypervisor architecture partitions the system into different functional domains, with carefully selected guest OS sharing optimizations for IoT and embedded devices. You can find out more about Project ACRN on the `Project ACRN documentation`_ website. .. _`Project ACRN`: https://projectacrn.org .. _`ACRN Hypervisor`: https://github.com/projectacrn/acrn-hypervisor .. _`Project ACRN documentation`: https://projectacrn.github.io/