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6beb34c3cb
Now, we use native gdt saved in boot context for guest and assume it could be put to same address of guest. But it may not be true after the pre-launched VM is introduced. The gdt for guest could be overwritten by guest images. This patch make 32bit protect mode boot not use saved boot context. Insteadly, we use predefined vcpu_regs value for protect guest to initialize the guest bsp registers and copy pre-defined gdt table to a safe place of guest memory to avoid gdt table overwritten by guest images. Tracked-On: #3532 Signed-off-by: Yin Fengwei <fengwei.yin@intel.com> Reviewed-by: Jason Chen CJ <jason.cj.chen@intel.com> Acked-by: Eddie Dong <eddie.dong@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/