d338d8789e
Enable and advertise PERFCTR_CORE if and only if the minimum number of required counters are available, i.e. if perf says there are less than six general purpose counters. Opportunistically, use kvm_cpu_cap_check_and_set() instead of open coding the check for host support. Suggested-by: Sean Christopherson <seanjc@google.com> Signed-off-by: Like Xu <likexu@tencent.com> [sean: massage shortlog and changelog] Link: https://lore.kernel.org/r/20230603011058.1038821-9-seanjc@google.com Signed-off-by: Sean Christopherson <seanjc@google.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.