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.com
Subject: [PATCH v3 0/6] x86/bugs: RSB mitigation fixes and documentation
Date: Wed, 2 Apr 2025 11:19:17 -0700 [thread overview]
Message-ID: <cover.1743617897.git.jpoimboe@kernel.org> (raw)
v3:
- fancy new doc
- more fixes
v2: https://lore.kernel.org/cover.1732219175.git.jpoimboe@kernel.org
Josh Poimboeuf (6):
x86/bugs: Rename entry_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 | 241 ++++++++++++++++++++
arch/x86/entry/entry.S | 9 +-
arch/x86/include/asm/nospec-branch.h | 12 +-
arch/x86/kernel/cpu/bugs.c | 109 +++------
arch/x86/mm/tlb.c | 6 +-
6 files changed, 291 insertions(+), 87 deletions(-)
create mode 100644 Documentation/admin-guide/hw-vuln/rsb.rst
--
2.48.1
next reply other threads:[~2025-04-02 18:19 UTC|newest]
Thread overview: 32+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-04-02 18:19 Josh Poimboeuf [this message]
2025-04-02 18:19 ` [PATCH v3 1/6] x86/bugs: Rename entry_ibpb() Josh Poimboeuf
2025-04-02 18:29 ` Borislav Petkov
2025-04-02 18:44 ` Josh Poimboeuf
2025-04-02 18:48 ` Borislav Petkov
2025-04-02 19:37 ` Ingo Molnar
2025-04-03 0:34 ` Josh Poimboeuf
2025-04-02 18:19 ` [PATCH v3 2/6] x86/bugs: Use SBPB in __write_ibpb() if applicable Josh Poimboeuf
2025-04-02 20:41 ` Tom Lendacky
2025-04-03 2:12 ` Josh Poimboeuf
2025-04-02 21:04 ` Jim Mattson
2025-04-03 2:17 ` Josh Poimboeuf
2025-04-09 18:07 ` Jim Mattson
2025-04-09 18:29 ` Kaplan, David
2025-04-09 18:46 ` Jim Mattson
2025-04-02 18:19 ` [PATCH v3 3/6] x86/bugs: Fix RSB clearing in indirect_branch_prediction_barrier() Josh Poimboeuf
2025-04-04 14:45 ` Nikolay Borisov
2025-04-04 15:17 ` Josh Poimboeuf
2025-04-04 22:56 ` Nikolay Borisov
2025-04-05 0:56 ` Josh Poimboeuf
2025-04-08 7:15 ` Nikolay Borisov
2025-04-02 18:19 ` [PATCH v3 4/6] x86/bugs: Don't fill RSB on VMEXIT with eIBRS+retpoline Josh Poimboeuf
2025-04-08 13:50 ` Nikolay Borisov
2025-04-02 18:19 ` [PATCH v3 5/6] x86/bugs: Don't fill RSB on context switch with eIBRS Josh Poimboeuf
2025-04-08 13:51 ` Nikolay Borisov
2025-04-02 18:19 ` [PATCH v3 6/6] x86/bugs: Add RSB mitigation document Josh Poimboeuf
2025-04-02 19:58 ` Ingo Molnar
2025-04-03 0:38 ` Josh Poimboeuf
2025-04-03 2:57 ` Bagas Sanjaya
2025-04-03 7:48 ` Josh Poimboeuf
2025-04-04 2:39 ` Andrew Cooper
2025-04-04 19:30 ` Josh Poimboeuf
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