From: Josh Poimboeuf <jpoimboe@kernel.org>
To: x86@kernel.org
Cc: linux-kernel@vger.kernel.org, amit@kernel.org,
kvm@vger.kernel.org, amit.shah@amd.com, thomas.lendacky@amd.com,
bp@alien8.de, tglx@linutronix.de, peterz@infradead.org,
pawan.kumar.gupta@linux.intel.com, corbet@lwn.net,
mingo@redhat.com, dave.hansen@linux.intel.com, hpa@zytor.com,
seanjc@google.com, pbonzini@redhat.com,
daniel.sneddon@linux.intel.com, kai.huang@intel.com,
sandipan.das@amd.com, boris.ostrovsky@oracle.com,
Babu.Moger@amd.com, david.kaplan@amd.com, dwmw@amazon.co.uk,
andrew.cooper3@citrix.comm, nik.borisov@suse.com
Subject: [PATCH v4 0/6] x86/bugs: RSB mitigation fixes and documentation
Date: Tue, 8 Apr 2025 14:47:29 -0700 [thread overview]
Message-ID: <cover.1744148254.git.jpoimboe@kernel.org> (raw)
v4:
- improve document
- remove C++ comment
- "__write_ibpb" -> "write-ibpb"
- improve commit logs
v3: https://lore.kernel.org/cover.1743617897.git.jpoimboe@kernel.org
Josh Poimboeuf (6):
x86/bugs: Rename entry_ibpb() to write_ibpb()
x86/bugs: Use SBPB in write_ibpb() if applicable
x86/bugs: Fix RSB clearing in indirect_branch_prediction_barrier()
x86/bugs: Don't fill RSB on VMEXIT with eIBRS+retpoline
x86/bugs: Don't fill RSB on context switch with eIBRS
x86/bugs: Add RSB mitigation document
Documentation/admin-guide/hw-vuln/index.rst | 1 +
Documentation/admin-guide/hw-vuln/rsb.rst | 268 ++++++++++++++++++++
arch/x86/entry/entry.S | 9 +-
arch/x86/include/asm/nospec-branch.h | 12 +-
arch/x86/kernel/cpu/bugs.c | 107 +++-----
arch/x86/mm/tlb.c | 6 +-
6 files changed, 317 insertions(+), 86 deletions(-)
create mode 100644 Documentation/admin-guide/hw-vuln/rsb.rst
--
2.49.0
next reply other threads:[~2025-04-08 21:48 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-04-08 21:47 Josh Poimboeuf [this message]
2025-04-08 21:47 ` [PATCH v4 1/6] x86/bugs: Rename entry_ibpb() to write_ibpb() Josh Poimboeuf
2025-04-09 11:44 ` [tip: x86/urgent] " tip-bot2 for Josh Poimboeuf
2025-04-08 21:47 ` [PATCH v4 2/6] x86/bugs: Use SBPB in write_ibpb() if applicable Josh Poimboeuf
2025-04-09 11:44 ` [tip: x86/urgent] " tip-bot2 for Josh Poimboeuf
2025-04-08 21:47 ` [PATCH v4 3/6] x86/bugs: Fix RSB clearing in indirect_branch_prediction_barrier() Josh Poimboeuf
2025-04-09 11:44 ` [tip: x86/urgent] " tip-bot2 for Josh Poimboeuf
2025-04-08 21:47 ` [PATCH v4 4/6] x86/bugs: Don't fill RSB on VMEXIT with eIBRS+retpoline Josh Poimboeuf
2025-04-09 11:44 ` [tip: x86/urgent] " tip-bot2 for Josh Poimboeuf
2025-04-08 21:47 ` [PATCH v4 5/6] x86/bugs: Don't fill RSB on context switch with eIBRS Josh Poimboeuf
2025-04-09 11:44 ` [tip: x86/urgent] " tip-bot2 for Josh Poimboeuf
2025-04-08 21:47 ` [PATCH v4 6/6] x86/bugs: Add RSB mitigation document Josh Poimboeuf
2025-04-09 11:44 ` [tip: x86/urgent] " tip-bot2 for Josh Poimboeuf
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