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5e3d4a68e2
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Pawan Gupta 5e3d4a68e2 x86/tsx: Add a feature bit for TSX control MSR support 
commit aaa65d17ee upstream.

Support for the TSX control MSR is enumerated in MSR_IA32_ARCH_CAPABILITIES.
This is different from how other CPU features are enumerated i.e. via
CPUID. Currently, a call to tsx_ctrl_is_supported() is required for
enumerating the feature. In the absence of a feature bit for TSX control,
any code that relies on checking feature bits directly will not work.

In preparation for adding a feature bit check in MSR save/restore
during suspend/resume, set a new feature bit X86_FEATURE_TSX_CTRL when
MSR_IA32_TSX_CTRL is present.

  [ bp: Remove tsx_ctrl_is_supported()]

  [Pawan: Resolved conflicts in backport; Removed parts of commit message
          referring to removed function tsx_ctrl_is_supported()]

Suggested-by: Andrew Cooper <andrew.cooper3@citrix.com>
Signed-off-by: Pawan Gupta <pawan.kumar.gupta@linux.intel.com>
Signed-off-by: Borislav Petkov <bp@suse.de>
Reviewed-by: Dave Hansen <dave.hansen@linux.intel.com>
Cc: <stable@kernel.org>
Link: https://lore.kernel.org/r/de619764e1d98afbb7a5fa58424f1278ede37b45.1668539735.git.pawan.kumar.gupta@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2022-12-08 11:23:59 +01:00
arch x86/tsx: Add a feature bit for TSX control MSR support 2022-12-08 11:23:59 +01:00
block block, bfq: fix null pointer dereference in bfq_bio_bfqg() 2022-12-02 17:39:58 +01:00
certs certs/blacklist_hashes.c: fix const confusion in certs blacklist 2022-06-22 14:13:17 +02:00
crypto crypto: akcipher - default implementation for setting a private key 2022-10-26 13:25:42 +02:00
Documentation docs: update mediator contact information in CoC doc 2022-11-25 17:45:53 +01:00
drivers Revert "tty: n_gsm: avoid call of sleeping functions from atomic context" 2022-12-08 11:23:59 +01:00
fs io_uring: don't hold uring_lock when calling io_run_task_work* 2022-12-08 11:23:58 +01:00
include mmc: core: Fix ambiguous TRIM and DISCARD arg 2022-12-08 11:23:57 +01:00
init init/Kconfig: fix CC_HAS_ASM_GOTO_TIED_OUTPUT test with dash 2022-12-02 17:40:03 +01:00
ipc ipc: remove memcg accounting for sops objects in do_semtimedop() 2022-11-10 18:14:29 +01:00
kernel tracing: Free buffers when a used dynamic event is removed 2022-12-08 11:23:58 +01:00
lib Kconfig.debug: provide a little extra FRAME_WARN leeway when KASAN is enabled 2022-12-08 11:23:58 +01:00
LICENSES
mm mm: vmscan: fix extreme overreclaim and swap floods 2022-12-02 17:40:04 +01:00
net ipv4: Fix route deletion when nexthop info is not specified 2022-12-08 11:23:59 +01:00
samples x86: Prepare inline-asm for straight-line-speculation 2022-07-25 11:26:29 +02:00
scripts scripts/faddr2line: Fix regression in name resolution on ppc64le 2022-12-08 11:23:54 +01:00
security capabilities: fix potential memleak on error path from vfs_getxattr_alloc() 2022-11-10 18:14:26 +01:00
sound ASoC: ops: Fix bounds check for _sx controls 2022-12-08 11:23:58 +01:00
tools ipv4: Fix route deletion when nexthop info is not specified 2022-12-08 11:23:59 +01:00
usr
virt kvm: Add support for arch compat vm ioctls 2022-10-30 09:41:15 +01:00
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MAINTAINERS MAINTAINERS: add Amir as xfs maintainer for 5.10.y 2022-07-02 16:39:22 +02:00
Makefile Linux 5.10.157 2022-12-02 17:40:07 +01:00
README

README 

Linux kernel
============

There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.

In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``.  The formatted documentation can also be read online at:

    https://www.kernel.org/doc/html/latest/

There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.

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.