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Re: [XEN][PATCH] x86/paging: replace !paging_mode_hap() with paging_mode_shadow()
- To: Grygorii Strashko <grygorii_strashko@xxxxxxxx>, "xen-devel@xxxxxxxxxxxxxxxxxxxx" <xen-devel@xxxxxxxxxxxxxxxxxxxx>
- From: Jason Andryuk <jason.andryuk@xxxxxxx>
- Date: Fri, 14 Nov 2025 18:21:16 -0500
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- Cc: Jan Beulich <jbeulich@xxxxxxxx>, Andrew Cooper <andrew.cooper3@xxxxxxxxxx>, Roger Pau Monné <roger.pau@xxxxxxxxxx>
- Delivery-date: Sat, 15 Nov 2025 00:39:29 +0000
- List-id: Xen developer discussion <xen-devel.lists.xenproject.org>
On 2025-11-14 09:44, Grygorii Strashko wrote:
From: Grygorii Strashko <grygorii_strashko@xxxxxxxx>
Now Xen supports only two paging modes: HAP and SHADOW, so
!paging_mode_hap() is actually means paging_mode_shadow().
For an abstract, future case of there being a 3rd paging mode it is also
better to explicitly mention checked paging mode (SHADOW) instead of using
negative check of another paging mode (HAP).
Hence, s/!paging_mode_hap()/paging_mode_shadow() which also allows DCE drop
unused code when SHADOW_PAGING=n.
The !paging_mode_hap() in hap.c not changed as HAP is checking for itself
to be enabled.
Inspired by [1].
[1]
https://patchwork.kernel.org/project/xen-devel/patch/20251111200958.3576341-3-grygorii_strashko@xxxxxxxx/
Signed-off-by: Grygorii Strashko <grygorii_strashko@xxxxxxxx>
Reviewed-by: Jason Andryuk <jason.andryuk@xxxxxxx>
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