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9e1909b9da
Pull x86/pti updates from Thomas Gleixner:
"Another set of melted spectrum updates:
- Iron out the last late microcode loading issues by actually
checking whether new microcode is present and preventing the CPU
synchronization to run into a timeout induced hang.
- Remove Skylake C2 from the microcode blacklist according to the
latest Intel documentation
- Fix the VM86 POPF emulation which traps if VIP is set, but VIF is
not. Enhance the selftests to catch that kind of issue
- Annotate indirect calls/jumps for objtool on 32bit. This is not a
functional issue, but for consistency sake its the right thing to
do.
- Fix a jump label build warning observed on SPARC64 which uses 32bit
storage for the code location which is casted to 64 bit pointer w/o
extending it to 64bit first.
- Add two new cpufeature bits. Not really an urgent issue, but
provides them for both x86 and x86/kvm work. No impact on the
current kernel"
* 'x86-pti-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/microcode: Fix CPU synchronization routine
x86/microcode: Attempt late loading only when new microcode is present
x86/speculation: Remove Skylake C2 from Speculation Control microcode blacklist
jump_label: Fix sparc64 warning
x86/speculation, objtool: Annotate indirect calls/jumps for objtool on 32-bit kernels
x86/vm86/32: Fix POPF emulation
selftests/x86/entry_from_vm86: Add test cases for POPF
selftests/x86/entry_from_vm86: Exit with 1 if we fail
x86/cpufeatures: Add Intel PCONFIG cpufeature
x86/cpufeatures: Add Intel Total Memory Encryption cpufeature
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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.