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In case we are booted via the default boot entry by a generic loader like grub or OVMF it is necessary to distinguish between a HVM guest with a device model supporting legacy devices and a PVH guest without device model. PVH guests will always have x86_platform.legacy.no_vga set and x86_platform.legacy.rtc cleared, while both won't be true for HVM guests. Test for both conditions in the guest_late_init hook and set xen_pvh to true if they are met. Move some of the early PVH initializations to the new hook in order to avoid duplicated code. Signed-off-by: Juergen Gross <jgross@suse.com> Acked-by: Thomas Gleixner <tglx@linutronix.de> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: boris.ostrovsky@oracle.com Cc: xen-devel@lists.xenproject.org Link: http://lkml.kernel.org/r/20171109132739.23465-6-jgross@suse.com Signed-off-by: Ingo Molnar <mingo@kernel.org>
Linux kernel ============ This file was moved to Documentation/admin-guide/README.rst Please notice that there are several guides for kernel developers and users. These guides can be rendered in a number of formats, like HTML and PDF. In order to build the documentation, use ``make htmldocs`` or ``make pdfdocs``. There are various text files in the Documentation/ subdirectory, several of them using the Restructured Text markup notation. See Documentation/00-INDEX for a list of what is contained in each file. 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.