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c8f808231f
XEN/PV has a completely broken vCPU enumeration scheme, which just works by chance and provides zero topology information. Each vCPU ends up being a single core package. Dom0 provides MADT which can be used for topology information, but that table is the unmodified host table, which means that there can be more CPUs registered than the number of vCPUs XEN provides for the dom0 guest. DomU does not have ACPI and both rely on counting the possible vCPUs via an hypercall. To prepare for using CPUID topology information either via MADT or via fake APIC IDs count the number of possible CPUs during early boot and adjust nr_cpu_ids() accordingly. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Tested-by: Michael Kelley <mhklinux@outlook.com> Tested-by: Sohil Mehta <sohil.mehta@intel.com> Link: https://lore.kernel.org/r/20240213210252.571795063@linutronix.de |
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| io_uring | ||
| ipc | ||
| kernel | ||
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| .clang-format | ||
| .cocciconfig | ||
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| .get_maintainer.ignore | ||
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| .mailmap | ||
| .rustfmt.toml | ||
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| README | ||
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.