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86d709ce30
The ACRN Hypervisor did not support x2APIC and thus x2APIC support was disabled by always returning false when VM checked for x2APIC support. ACRN received full support of x2APIC and exports the capability through CPUID feature bits. Let VM decide if it needs to switch to x2APIC mode according to CPUID features. Originally-by: Yakui Zhao <yakui.zhao@intel.com> Signed-off-by: Shuo Liu <shuo.a.liu@intel.com> Signed-off-by: Ingo Molnar <mingo@kernel.org> Reviewed-by: Reinette Chatre <reinette.chatre@intel.com> Link: https://lore.kernel.org/r/20200806113802.9325-1-shuo.a.liu@intel.com
Linux kernel
============
There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.
In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``. The formatted documentation can also be read online at:
https://www.kernel.org/doc/html/latest/
There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.
Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.