From: Andrew Cooper <andrew.cooper3@citrix.com>
To: Xen-devel <xen-devel@lists.xenproject.org>
Cc: "Andrew Cooper" <andrew.cooper3@citrix.com>,
"Jan Beulich" <JBeulich@suse.com>,
"Roger Pau Monné" <roger.pau@citrix.com>, "Wei Liu" <wl@xen.org>
Subject: [PATCH 0/8] x86/spec-ctrl: AMD DIV fix, and VERW prerequisite bugfixes
Date: Wed, 13 Sep 2023 21:27:50 +0100 [thread overview]
Message-ID: <20230913202758.508225-1-andrew.cooper3@citrix.com> (raw)
Patch 8 is the XSA-439 fix for the AMD DIV issue, disclosed insufficiently
ahead of August 8th for us to prepare a fix for the embargo.
Patches 1 thru 7 are prerequisites, identified while trying to write patch 8.
All 8 patches are for all security trees.
Andrew Cooper (8):
x86/spec-ctrl: Fix confusion between SPEC_CTRL_EXIT_TO_XEN{,_IST}
x86/spec-ctrl: Fold DO_SPEC_CTRL_EXIT_TO_XEN into it's single user
x86/spec-ctrl: Turn the remaining SPEC_CTRL_{ENTRY,EXIT}_* into asm macros
x86/spec-ctrl: Extend all SPEC_CTRL_{ENTER,EXIT}_* comments
x86/entry: Adjust restore_all_xen to hold stack_end in %r14
x86/entry: Track the IST-ness of an entry for the exit paths
x86/spec-ctrl: Issue VERW during IST exit to Xen
x86/spec-ctrl: Mitigate the Zen1 DIV leakge
docs/misc/xen-command-line.pandoc | 6 +-
xen/arch/x86/hvm/svm/entry.S | 1 +
xen/arch/x86/include/asm/cpufeatures.h | 2 +-
xen/arch/x86/include/asm/spec_ctrl_asm.h | 150 ++++++++++++++++-------
xen/arch/x86/spec_ctrl.c | 45 ++++++-
xen/arch/x86/traps.c | 13 ++
xen/arch/x86/x86_64/compat/entry.S | 9 +-
xen/arch/x86/x86_64/entry.S | 31 +++--
8 files changed, 198 insertions(+), 59 deletions(-)
base-commit: 6aa25c32180ab59081c73bae4c568367d9133a1f
--
2.30.2
next reply other threads:[~2023-09-13 20:28 UTC|newest]
Thread overview: 32+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-09-13 20:27 Andrew Cooper [this message]
2023-09-13 20:27 ` [PATCH 1/8] x86/spec-ctrl: Fix confusion between SPEC_CTRL_EXIT_TO_XEN{,_IST} Andrew Cooper
2023-09-14 6:56 ` Jan Beulich
2023-09-14 9:54 ` Andrew Cooper
2023-09-13 20:27 ` [PATCH 2/8] x86/spec-ctrl: Fold DO_SPEC_CTRL_EXIT_TO_XEN into it's single user Andrew Cooper
2023-09-14 6:59 ` Jan Beulich
2023-09-13 20:27 ` [PATCH 3/8] x86/spec-ctrl: Turn the remaining SPEC_CTRL_{ENTRY,EXIT}_* into asm macros Andrew Cooper
2023-09-14 7:20 ` Jan Beulich
2023-09-13 20:27 ` [PATCH 4/8] x86/spec-ctrl: Extend all SPEC_CTRL_{ENTER,EXIT}_* comments Andrew Cooper
2023-09-14 7:58 ` Jan Beulich
2023-09-14 19:23 ` Andrew Cooper
2023-09-15 7:07 ` Jan Beulich
2023-09-15 9:27 ` Andrew Cooper
2023-09-13 20:27 ` [PATCH 5/8] x86/entry: Adjust restore_all_xen to hold stack_end in %r14 Andrew Cooper
2023-09-14 8:51 ` Jan Beulich
2023-09-14 19:28 ` Andrew Cooper
2023-09-13 20:27 ` [PATCH 6/8] x86/entry: Track the IST-ness of an entry for the exit paths Andrew Cooper
2023-09-14 9:32 ` Jan Beulich
2023-09-14 19:44 ` Andrew Cooper
2023-09-15 7:13 ` Jan Beulich
2023-09-15 9:30 ` Andrew Cooper
2023-09-13 20:27 ` [PATCH 7/8] x86/spec-ctrl: Issue VERW during IST exit to Xen Andrew Cooper
2023-09-14 10:01 ` Jan Beulich
2023-09-14 19:49 ` Andrew Cooper
2023-09-15 7:15 ` Jan Beulich
2023-09-13 20:27 ` [PATCH 8/8] x86/spec-ctrl: Mitigate the Zen1 DIV leakge Andrew Cooper
2023-09-13 20:43 ` Andrew Cooper
2023-09-13 21:12 ` Marek Marczykowski-Górecki
2023-09-14 10:52 ` Jan Beulich
2023-09-14 20:01 ` Andrew Cooper
2023-09-14 13:12 ` Jason Andryuk
2023-09-14 20:05 ` Andrew Cooper
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