Msr Safe Versions Save

This release includes a major overhaul of the docs, adds our first AMD allowlist, and addresses cleanup throughout the code.

New Features

• Adds our first AMD allowlist
• Adds ENOMEM check to zalloc_cpumask_var call
• Adds /dev/cpu/msr_safe_version device
• Disambiguates multiple error states
• Replaces existing README.md with more complete documentation
• Migrate CI from travis to github-actions

Code Cleanup

• Removes the directory upstream_patch_proposals.
• Removes ioctl() interface from msr_entry
• Removes loops from read and write interfaces
• Removes CAP_SYS_RAWIO checks
• Removes open and close fileops from msr_batch
• Removes X86_FEATURE_MSR check

• fixes stack size warning
• use ALLOWLIST sysconfig override if set
• automatically set version when building rpm
• update copyright year and license info

• Rename whitelist to allowlist throughout to match linux kernel terminology
• Use same version for both msrsave and msr-safe
• Update turbo and uncore frequency monitoring MSRs in allowlists

SC19 msr-safe release

Fixing security issues.

Standardizing whitelist enumeration to subsequent input.

• Support for newer kernels (4.10+)
• Adding support for Broadwell, Sky Lake
• Removing support for PP0 domain
• Including msrsave utility to save and restore MSR values