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Re: [PATCH v5 05/11] xen/device-tree: use p2m_gpa_bits in common code
- To: Oleksii Kurochko <oleksii.kurochko@xxxxxxxxx>, <xen-devel@xxxxxxxxxxxxxxxxxxxx>
- From: "Orzel, Michal" <michal.orzel@xxxxxxx>
- Date: Wed, 13 May 2026 13:14:47 +0200
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- Cc: Romain Caritey <Romain.Caritey@xxxxxxxxxxxxx>, Stefano Stabellini <sstabellini@xxxxxxxxxx>, Julien Grall <julien@xxxxxxx>, Bertrand Marquis <bertrand.marquis@xxxxxxx>, Volodymyr Babchuk <Volodymyr_Babchuk@xxxxxxxx>, Luca Fancellu <luca.fancellu@xxxxxxx>, Jan Beulich <jbeulich@xxxxxxxx>
- Delivery-date: Wed, 13 May 2026 11:15:04 +0000
- List-id: Xen developer discussion <xen-devel.lists.xenproject.org>
On 07-May-26 10:58, Oleksii Kurochko wrote:
> The IPA terminology is Arm-specific, so rename p2m_ipa_bits to
> p2m_gpa_bits to use architecture-neutral naming in
> xen/common/device-tree/ code.
>
> No functional changes.
>
> Reported-by: Jan Beulich <jbeulich@xxxxxxxx>
> Signed-off-by: Oleksii Kurochko <oleksii.kurochko@xxxxxxxxx>
> Reviewed-by: Luca Fancellu <luca.fancellu@xxxxxxx>
> ---
> Changes in v5:
> - Rephraze commit subject.
> - Reviewed-by: Luca Fancellu <luca.fancellu@xxxxxxx>.
> ---
> Changes in v4:
> - Nothing changed only rebase.
> ---
> Changes in v3:
> - Introduce #define p2m_gpa_bits p2m_ipa_bits for Arm instead of
> renaming of p2m_ipa_bits to p2m_gpa_bits to keep Arm part of
> changes clearer and keep using Arm-specific terminolgy inside
> Arm code.
> ---
> Changes in v2:
> - New patch.
> ---
> ---
> xen/arch/arm/include/asm/p2m.h | 2 ++
> xen/common/device-tree/domain-build.c | 2 +-
> 2 files changed, 3 insertions(+), 1 deletion(-)
>
> diff --git a/xen/arch/arm/include/asm/p2m.h b/xen/arch/arm/include/asm/p2m.h
> index 010ce8c9ebbd..7957dbd96e57 100644
> --- a/xen/arch/arm/include/asm/p2m.h
> +++ b/xen/arch/arm/include/asm/p2m.h
> @@ -14,6 +14,8 @@
> /* Holds the bit size of IPAs in p2m tables. */
> extern unsigned int p2m_ipa_bits;
>
> +#define p2m_gpa_bits p2m_ipa_bits
This deserves the comment e.g.:
/* Common-code alias; ARM keeps the IPA spelling internally */
With that:
Acked-by: Michal Orzel <michal.orzel@xxxxxxx>
~Michal
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