Hi Linus,
I hope this is the last batch of x86/urgent updates for this round.
Pls pull,
thx.
---
The following changes since commit 6ee1d745b7c9fd573fba142a2efdad76a9f1cb04:
Linux 5.11-rc5 (2021-01-24 16:47:14 -0800)
are available in the Git repository at:
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git
tags/x86_urgent_for_v5.11_rc7
for you to fetch changes up to 816ef8d7a2c4182e19bc06ab65751cb9e3951e94:
x86/efi: Remove EFI PGD build time checks (2021-02-06 13:54:14 +0100)
----------------------------------------------------------------
- Remove superfluous EFI PGD range checks which lead to those assertions failing
with certain kernel configs and LLVM.
- Disable setting breakpoints on facilities involved in #DB exception handling
to avoid infinite loops.
- Add extra serialization to non-serializing MSRs (IA32_TSC_DEADLINE and
x2 APIC MSRs) to adhere to SDM's recommendation and avoid any theoretical
issues.
- Re-add the EPB MSR reading on turbostat so that it works on older
kernels which don't have the corresponding EPB sysfs file.
- Add Alder Lake to the list of CPUs which support split lock.
- Fix %dr6 register handling in order to be able to set watchpoints with gdb
again.
- Disable CET instrumentation in the kernel so that gcc doesn't add
ENDBR64 to kernel code and thus confuse tracing.
----------------------------------------------------------------
Borislav Petkov (2):
tools/power/turbostat: Fallback to an MSR read for EPB
x86/efi: Remove EFI PGD build time checks
Dave Hansen (1):
x86/apic: Add extra serialization for non-serializing MSRs
Fenghua Yu (1):
x86/split_lock: Enable the split lock feature on another Alder Lake CPU
Josh Poimboeuf (1):
x86/build: Disable CET instrumentation in the kernel
Lai Jiangshan (2):
x86/debug: Prevent data breakpoints on __per_cpu_offset
x86/debug: Prevent data breakpoints on cpu_dr7
Peter Zijlstra (1):
x86/debug: Fix DR6 handling
Makefile | 6 ----
arch/x86/Makefile | 3 ++
arch/x86/include/asm/apic.h | 10 ------
arch/x86/include/asm/barrier.h | 18 +++++++++++
arch/x86/kernel/apic/apic.c | 4 +++
arch/x86/kernel/apic/x2apic_cluster.c | 6 ++--
arch/x86/kernel/apic/x2apic_phys.c | 9 ++++--
arch/x86/kernel/cpu/intel.c | 1 +
arch/x86/kernel/hw_breakpoint.c | 61 +++++++++++++++++++++++------------
arch/x86/platform/efi/efi_64.c | 19 -----------
tools/power/x86/turbostat/turbostat.c | 10 +++++-
11 files changed, 85 insertions(+), 62 deletions(-)
--
Regards/Gruss,
Boris.
SUSE Software Solutions Germany GmbH, GF: Felix Imendörffer, HRB 36809, AG
Nürnberg
