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Re: [PATCH] arm/nospec: Make nospec helpers always_inline
- To: Alejandro Vallejo <alejandro.garciavallejo@xxxxxxx>
- From: Roger Pau Monné <roger.pau@xxxxxxx>
- Date: Tue, 6 Oct 2026 15:50:13 +0200
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- Cc: xen-devel@xxxxxxxxxxxxxxxxxxxx, Stefano Stabellini <sstabellini@xxxxxxxxxx>, Julien Grall <julien@xxxxxxx>, Bertrand Marquis <bertrand.marquis@xxxxxxx>, Volodymyr Babchuk <Volodymyr_Babchuk@xxxxxxxx>, Michal Orzel <michal.orzel@xxxxxxx>
- Delivery-date: Tue, 06 Oct 2026 13:50:39 +0000
- List-id: Xen developer discussion <xen-devel.lists.xenproject.org>
On Tue, Oct 06, 2026 at 12:31:40PM +0200, Alejandro Vallejo wrote:
> While today they don't implement fencing in a way that would block
> speculation, once/if they do they'll absolutely need to be inlined, even
> if -fno-inline or -fno-early-inlining are passed.
FWIW, it's my understanding that -fno-early-inlining is not really
relevant here; it disables the early inlining pass, but the late(r)
one(s) is/are still present, so inlining will happen, just later in
the compilation process. -fno-inline is indeed relevant here.
Thanks, Roger.
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