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3b7c27e678
Declare and define the static calls for the hotpath APIC callbacks. Note this deliberately uses STATIC_CALL_NULL() because otherwise it would be required to have the definitions in the 32bit and the 64bit default APIC implementations and it's hard to keep the calls in sync. The other option would be to have stub functions for each callback type. Not pretty either So the NULL capable calls are used and filled in during early boot after the static key infrastructure has been initialized. The calls will be static_call() except for the wait_irc_idle() callback which is valid to be NULL for X2APIC systems. Update the calls when a new APIC driver is installed and when a callback override is invoked. Export the trampolines for the two calls which are used in KVM and MCE error inject modules. Test the setup and let the next step convert the inline wrappers to make it effective. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Dave Hansen <dave.hansen@linux.intel.com> Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org> Tested-by: Michael Kelley <mikelley@microsoft.com> Tested-by: Sohil Mehta <sohil.mehta@intel.com> Tested-by: Juergen Gross <jgross@suse.com> # Xen PV (dom0 and unpriv. guest) |
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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.