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46a860bf04
In HV, cpuid uses the lower 32 bits of rax\rbx\rcx\rdx registers to pass parameters, But the software does not clear the upper 32-bit registers, if the guest uses 64-bit variables to pass parameters to cpuid，guest will use rax\rbx\rcx\rdx, not eax\ebx\ecx\edx, the previous value of the high 32 registers will affect the guest. Tracked-On: #8605 Reviewed-by: Junjie Mao <junjie.mao@intel.com> Signed-off-by: andi6 <andi6@xiaomi.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/