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Re: [PATCH] xen/nospec: Include <xen/stdbool.h>
- To: Michal Orzel <michal.orzel@xxxxxxx>
- From: Jan Beulich <jbeulich@xxxxxxxx>
- Date: Tue, 19 Mar 2024 10:40:20 +0100
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- Cc: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>, George Dunlap <george.dunlap@xxxxxxxxxx>, Julien Grall <julien@xxxxxxx>, Stefano Stabellini <sstabellini@xxxxxxxxxx>, xen-devel@xxxxxxxxxxxxxxxxxxxx
- Delivery-date: Tue, 19 Mar 2024 09:40:40 +0000
- List-id: Xen developer discussion <xen-devel.lists.xenproject.org>
On 19.03.2024 09:50, Michal Orzel wrote:
> After introduction of lock_evaluate_nospec() using bool type, building
> Xen on Arm with UBSAN enabled fails:
>
> In file included from ./include/xen/spinlock.h:4,
> from common/ubsan/ubsan.c:13:
> ./include/xen/nospec.h:79:22: error: unknown type name ‘bool’
> 79 | static always_inline bool lock_evaluate_nospec(bool condition)
>
> There is no issue on x86, as xen/stdbool.h is included somewhere along
> the asm/nospec.h path, which is not the case for other architectures.
>
> Fixes: 7ef0084418e1 ("x86/spinlock: introduce support for blocking
> speculation into critical regions")
> Signed-off-by: Michal Orzel <michal.orzel@xxxxxxx>
Acked-by: Jan Beulich <jbeulich@xxxxxxxx>
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