From: Balbir Singh <sblbir@amazon.com>
To: <tglx@linutronix.de>, <linux-kernel@vger.kernel.org>
Cc: <jpoimboe@redhat.com>, <tony.luck@intel.com>,
<keescook@chromium.org>, <benh@kernel.crashing.org>,
<x86@kernel.org>, <dave.hansen@intel.com>,
<thomas.lendacky@amd.com>, Balbir Singh <sblbir@amazon.com>
Subject: [PATCH v7 0/3] Optionally flush L1D cache on context switch
Date: Sat, 16 May 2020 20:34:27 +1000 [thread overview]
Message-ID: <20200516103430.26527-1-sblbir@amazon.com> (raw)
These are the remaining patches built on top of
https://git.kernel.org/pub/scm/linux/kernel/git/tglx/devel.git/log/?h=x86/mm
for the series posted at
https://lore.kernel.org/lkml/20200510014803.12190-1-sblbir@amazon.com/
Changelog v7
- Split patch 5 from the previous series into two patches
- Reuse the prctl PR_GET/SET_SPECULATION_CTRL with PR_SPEC_L1D_FLUSH_OUT
as the ctrl parameter
- Add the BUILD_BUG_ON that went missing that checks the placement of
TIF_SPEC_L1D_FLUSH
- Update the documentation to reflect the changes
Balbir Singh (3):
x86/mm: Optionally flush L1D on context switch
prctl: Hook L1D flushing in via prctl
Documentation: Add L1D flushing Documentation
Documentation/admin-guide/hw-vuln/index.rst | 1 +
.../admin-guide/hw-vuln/l1d_flush.rst | 51 +++++++++++++++++++
Documentation/userspace-api/spec_ctrl.rst | 7 +++
arch/x86/include/asm/thread_info.h | 9 +++-
arch/x86/kernel/cpu/bugs.c | 28 ++++++++++
arch/x86/mm/tlb.c | 39 ++++++++++++--
include/uapi/linux/prctl.h | 1 +
7 files changed, 131 insertions(+), 5 deletions(-)
create mode 100644 Documentation/admin-guide/hw-vuln/l1d_flush.rst
--
2.17.1
next reply other threads:[~2020-05-16 10:34 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-05-16 10:34 Balbir Singh [this message]
2020-05-16 10:34 ` [PATCH v7 1/3] x86/mm: Optionally flush L1D " Balbir Singh
2020-05-22 9:32 ` [tip: x86/mm] " tip-bot2 for Balbir Singh
2020-05-16 10:34 ` [PATCH v7 2/3] prctl: Hook L1D flushing in via prctl Balbir Singh
2020-05-22 9:32 ` [tip: x86/mm] " tip-bot2 for Balbir Singh
2020-05-16 10:34 ` [PATCH v7 3/3] Documentation: Add L1D flushing Documentation Balbir Singh
2020-05-22 9:32 ` [tip: x86/mm] " tip-bot2 for Balbir Singh
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