linux/arch/x86/power
Linus Torvalds 3ef3ace4e2 - Split MTRR and PAT init code to accomodate at least Xen PV and TDX
guests which do not get MTRRs exposed but only PAT. (TDX guests do not
 support the cache disabling dance when setting up MTRRs so they fall
 under the same category.) This is a cleanup work to remove all the ugly
 workarounds for such guests and init things separately (Juergen Gross)
 
 - Add two new Intel CPUs to the list of CPUs with "normal" Energy
 Performance Bias, leading to power savings
 
 - Do not do bus master arbitration in C3 (ARB_DISABLE) on modern Centaur
 CPUs
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Merge tag 'x86_cpu_for_v6.2' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull x86 cpu updates from Borislav Petkov:

 - Split MTRR and PAT init code to accomodate at least Xen PV and TDX
   guests which do not get MTRRs exposed but only PAT. (TDX guests do
   not support the cache disabling dance when setting up MTRRs so they
   fall under the same category)

   This is a cleanup work to remove all the ugly workarounds for such
   guests and init things separately (Juergen Gross)

 - Add two new Intel CPUs to the list of CPUs with "normal" Energy
   Performance Bias, leading to power savings

 - Do not do bus master arbitration in C3 (ARB_DISABLE) on modern
   Centaur CPUs

* tag 'x86_cpu_for_v6.2' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (26 commits)
  x86/mtrr: Make message for disabled MTRRs more descriptive
  x86/pat: Handle TDX guest PAT initialization
  x86/cpuid: Carve out all CPUID functionality
  x86/cpu: Switch to cpu_feature_enabled() for X86_FEATURE_XENPV
  x86/cpu: Remove X86_FEATURE_XENPV usage in setup_cpu_entry_area()
  x86/cpu: Drop 32-bit Xen PV guest code in update_task_stack()
  x86/cpu: Remove unneeded 64-bit dependency in arch_enter_from_user_mode()
  x86/cpufeatures: Add X86_FEATURE_XENPV to disabled-features.h
  x86/acpi/cstate: Optimize ARB_DISABLE on Centaur CPUs
  x86/mtrr: Simplify mtrr_ops initialization
  x86/cacheinfo: Switch cache_ap_init() to hotplug callback
  x86: Decouple PAT and MTRR handling
  x86/mtrr: Add a stop_machine() handler calling only cache_cpu_init()
  x86/mtrr: Let cache_aps_delayed_init replace mtrr_aps_delayed_init
  x86/mtrr: Get rid of __mtrr_enabled bool
  x86/mtrr: Simplify mtrr_bp_init()
  x86/mtrr: Remove set_all callback from struct mtrr_ops
  x86/mtrr: Disentangle MTRR init from PAT init
  x86/mtrr: Move cache control code to cacheinfo.c
  x86/mtrr: Split MTRR-specific handling from cache dis/enabling
  ...
2022-12-13 14:56:56 -08:00
..
cpu.c - Split MTRR and PAT init code to accomodate at least Xen PV and TDX 2022-12-13 14:56:56 -08:00
hibernate_32.c mm: reorder includes after introduction of linux/pgtable.h 2020-06-09 09:39:13 -07:00
hibernate_64.c mm: reorder includes after introduction of linux/pgtable.h 2020-06-09 09:39:13 -07:00
hibernate_asm_32.S x86: Prepare asm files for straight-line-speculation 2021-12-08 12:25:37 +01:00
hibernate_asm_64.S x86: Prepare asm files for straight-line-speculation 2021-12-08 12:25:37 +01:00
hibernate.c PM: hibernate: x86: Use crc32 instead of md5 for hibernation e820 integrity check 2021-04-21 19:03:37 +02:00
Makefile clang-lto for v5.12-rc1 (part2) 2021-02-23 15:13:45 -08:00