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Re: [PATCH] x86/shadow: don't leave trace record field uninitialized
- To: Jan Beulich <jbeulich@xxxxxxxx>, "xen-devel@xxxxxxxxxxxxxxxxxxxx" <xen-devel@xxxxxxxxxxxxxxxxxxxx>
- From: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
- Date: Wed, 22 May 2024 12:13:00 +0100
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- Cc: Roger Pau Monné <roger.pau@xxxxxxxxxx>, Tim Deegan <tim@xxxxxxx>, George Dunlap <george.dunlap@xxxxxxxxx>, Oleksii Kurochko <oleksii.kurochko@xxxxxxxxx>
- Delivery-date: Wed, 22 May 2024 11:13:08 +0000
- List-id: Xen developer discussion <xen-devel.lists.xenproject.org>
On 22/05/2024 11:17 am, Jan Beulich wrote:
> The emulation_count field is set only conditionally right now. Convert
> all field setting to an initializer, thus guaranteeing that field to be
> set to 0 (default initialized) when GUEST_PAGING_LEVELS != 3.
>
> While there also drop the "event" local variable, thus eliminating an
> instance of the being phased out u32 type.
>
> Coverity ID: 1598430
> Fixes: 9a86ac1aa3d2 ("xentrace 5/7: Additional tracing for the shadow code")
> Signed-off-by: Jan Beulich <jbeulich@xxxxxxxx>
This is an improvement, but there's a related mess right next to it.
I think this would be a whole lot better with a couple of tweaks, if
you're willing to wait a little for me to try.
~Andrew
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