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fcce7c1e7d
KVM PV clock changes for 6.15: - Don't take kvm->lock when iterating over vCPUs in the suspend notifier to fix a largely theoretical deadlock. - Use the vCPU's actual Xen PV clock information when starting the Xen timer, as the cached state in arch.hv_clock can be stale/bogus. - Fix a bug where KVM could bleed PVCLOCK_GUEST_STOPPED across different PV clocks. - Restrict PVCLOCK_GUEST_STOPPED to kvmclock, as KVM's suspend notifier only accounts for kvmclock, and there's no evidence that the flag is actually supported by Xen guests. - Clean up the per-vCPU "cache" of its reference pvclock, and instead only track the vCPU's TSC scaling (multipler+shift) metadata (which is moderately expensive to compute, and rarely changes for modern setups).
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 reStructuredText 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.