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Xiaoyao Li
1896409282
Current implementation keeps userspace input of CPUID configuration and cpuid->nent even if kvm_update_cpuid() fails. Reset vcpu->arch.cpuid_nent to 0 for the case of failure as a simple fix. Besides, update the doc to explicitly state that if IOCTL SET_CPUID* fail KVM gives no gurantee that previous valid CPUID configuration is kept. Signed-off-by: Xiaoyao Li <xiaoyao.li@intel.com> Message-Id: <20200708065054.19713-2-xiaoyao.li@intel.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.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.