mainlining shenanigans
21bd3467a5
Remove KVM's code to initialize IA32_FEAT_CTL MSR when KVM is loaded now that the MSR is initialized during boot on all CPUs that support VMX, i.e. on all CPUs that can possibly load kvm_intel. Note, don't WARN if IA32_FEAT_CTL is unlocked, even though the MSR is unconditionally locked by init_ia32_feat_ctl(). KVM isn't tied directly to a CPU vendor detection, whereas init_ia32_feat_ctl() is invoked if and only if the CPU vendor is recognized and known to support VMX. As a result, vmx_disabled_by_bios() may be reached without going through init_ia32_feat_ctl() and thus without locking IA32_FEAT_CTL. This quirk will be eliminated in a future patch. Signed-off-by: Sean Christopherson <sean.j.christopherson@intel.com> Signed-off-by: Borislav Petkov <bp@suse.de> Reviewed-by: Jim Mattson <jmattson@google.com> Link: https://lkml.kernel.org/r/20191221044513.21680-15-sean.j.christopherson@intel.com |
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| arch | ||
| block | ||
| certs | ||
| crypto | ||
| Documentation | ||
| drivers | ||
| fs | ||
| include | ||
| init | ||
| ipc | ||
| kernel | ||
| lib | ||
| LICENSES | ||
| mm | ||
| net | ||
| samples | ||
| scripts | ||
| security | ||
| sound | ||
| tools | ||
| usr | ||
| virt | ||
| .clang-format | ||
| .cocciconfig | ||
| .get_maintainer.ignore | ||
| .gitattributes | ||
| .gitignore | ||
| .mailmap | ||
| COPYING | ||
| CREDITS | ||
| Kbuild | ||
| Kconfig | ||
| MAINTAINERS | ||
| Makefile | ||
| 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.