WSL2-Linux-Kernel

The source for the Linux kernel used in Windows Subsystem for Linux 2 (WSL2)

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Paul Mackerras cf5f6f3125 KVM: PPC: Book3S HV: Hold kvm->lock around call to kvmppc_update_lpcr Commit `468808bd35` ("KVM: PPC: Book3S HV: Set process table for HPT guests on POWER9", 2017-01-30) added a call to kvmppc_update_lpcr() which doesn't hold the kvm->lock mutex around the call, as required. This adds the lock/unlock pair, and for good measure, includes the kvmppc_setup_partition_table() call in the locked region, since it is altering global state of the VM. This error appears not to have any fatal consequences for the host; the consequences would be that the VCPUs could end up running with different LPCR values, or an update to the LPCR value by userspace using the one_reg interface could get overwritten, or the update done by kvmhv_configure_mmu() could get overwritten. Cc: stable@vger.kernel.org # v4.10+ Fixes: `468808bd35` ("KVM: PPC: Book3S HV: Set process table for HPT guests on POWER9") Signed-off-by: Paul Mackerras <paulus@ozlabs.org>		2017-09-12 16:02:27 +10:00
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arch	KVM: PPC: Book3S HV: Hold kvm->lock around call to kvmppc_update_lpcr	2017-09-12 16:02:27 +10:00
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README

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.