[GIT PULL] x86/cpu changes for v5.9

From: Ingo Molnar
Date: Mon Aug 03 2020 - 14:03:42 EST


Linus,

Please pull the latest x86/cpu git tree from:

git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git x86-cpu-2020-08-03

# HEAD: f69ca629d89d65737537e05308ac531f7bb07d5c x86/cpu: Refactor sync_core() for readability

Misc changes:

- Prepare for Intel's new SERIALIZE instruction
- Enable split-lock debugging on more CPUs
- Add more Intel CPU models
- Optimize stack canary initialization a bit
- Simplify the Spectre logic a bit

out-of-topic modifications in x86-cpu-2020-08-03:
---------------------------------------------------
drivers/misc/sgi-gru/grufault.c # 9998a9832c40: x86/cpu: Relocate sync_core(
drivers/misc/sgi-gru/gruhandles.c # 9998a9832c40: x86/cpu: Relocate sync_core(
drivers/misc/sgi-gru/grukservices.c# 9998a9832c40: x86/cpu: Relocate sync_core(

Thanks,

Ingo

------------------>
Borislav Petkov (1):
x86/speculation: Merge one test in spectre_v2_user_select_mitigation()

Brian Gerst (1):
x86/stackprotector: Pre-initialize canary for secondary CPUs

Fenghua Yu (1):
x86/split_lock: Enable the split lock feature on Sapphire Rapids and Alder Lake CPUs

Ricardo Neri (3):
x86/cpufeatures: Add enumeration for SERIALIZE instruction
x86/cpu: Relocate sync_core() to sync_core.h
x86/cpu: Refactor sync_core() for readability

Tony Luck (1):
x86/cpu: Add Lakefield, Alder Lake and Rocket Lake models to the to Intel CPU family


arch/x86/include/asm/cpufeatures.h | 1 +
arch/x86/include/asm/intel-family.h | 7 ++++
arch/x86/include/asm/processor.h | 64 -------------------------------
arch/x86/include/asm/special_insns.h | 1 -
arch/x86/include/asm/stackprotector.h | 12 ++++++
arch/x86/include/asm/sync_core.h | 72 +++++++++++++++++++++++++++++++++++
arch/x86/kernel/alternative.c | 1 +
arch/x86/kernel/cpu/bugs.c | 13 ++-----
arch/x86/kernel/cpu/intel.c | 2 +
arch/x86/kernel/cpu/mce/core.c | 1 +
arch/x86/kernel/smpboot.c | 14 +------
arch/x86/xen/smp_pv.c | 2 -
drivers/misc/sgi-gru/grufault.c | 1 +
drivers/misc/sgi-gru/gruhandles.c | 1 +
drivers/misc/sgi-gru/grukservices.c | 1 +
15 files changed, 105 insertions(+), 88 deletions(-)