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[PATCH 0/3] retpoline: add clang support + Kconfig selectable
- To: <xen-devel@xxxxxxxxxxxxxxxxxxxx>
- From: Roger Pau Monne <roger.pau@xxxxxxxxxx>
- Date: Wed, 16 Feb 2022 10:02:57 +0100
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- Cc: Roger Pau Monne <roger.pau@xxxxxxxxxx>, Jan Beulich <jbeulich@xxxxxxxx>, Andrew Cooper <andrew.cooper3@xxxxxxxxxx>, Wei Liu <wl@xxxxxxx>, George Dunlap <george.dunlap@xxxxxxxxxx>, Julien Grall <julien@xxxxxxx>, Stefano Stabellini <sstabellini@xxxxxxxxxx>
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- List-id: Xen developer discussion <xen-devel.lists.xenproject.org>
Hello,
The following series adds retpoline support for clang builds, and also
allows the user to select whether to enable retpoline support at build
time via a new Kconfig option.
I've tried adding a suitable description to the Kconfig option, but I'm
sure there's room for improvement.
Thanks, Roger.
Roger Pau Monne (3):
x86/retpoline: rename retpoline Kconfig check to include GCC prefix
x86/clang: add retpoline support
x86/Kconfig: introduce option to select retpoline usage
xen/arch/x86/Kconfig | 5 ++++-
xen/arch/x86/arch.mk | 13 +++++++++----
xen/common/Kconfig | 16 ++++++++++++++++
3 files changed, 29 insertions(+), 5 deletions(-)
--
2.34.1
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