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Re: [PATCH v2 11/23] xen/arm: vsmmuv3: Attach Stage-1 configuration to SMMUv3 hardware
- To: Milan Djokic <milan_djokic@xxxxxxxx>
- From: Jan Beulich <jbeulich@xxxxxxxx>
- Date: Tue, 24 Mar 2026 09:35:36 +0100
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- Cc: Rahul Singh <rahul.singh@xxxxxxx>, Stefano Stabellini <sstabellini@xxxxxxxxxx>, Julien Grall <julien@xxxxxxx>, Bertrand Marquis <bertrand.marquis@xxxxxxx>, Michal Orzel <michal.orzel@xxxxxxx>, Volodymyr Babchuk <Volodymyr_Babchuk@xxxxxxxx>, Roger Pau Monné <roger.pau@xxxxxxxxxx>, "xen-devel@xxxxxxxxxxxxxxxxxxxx" <xen-devel@xxxxxxxxxxxxxxxxxxxx>
- Delivery-date: Tue, 24 Mar 2026 08:35:45 +0000
- List-id: Xen developer discussion <xen-devel.lists.xenproject.org>
On 23.03.2026 23:51, Milan Djokic wrote:
> --- a/xen/include/xen/iommu.h
> +++ b/xen/include/xen/iommu.h
> @@ -311,6 +311,10 @@ static inline int iommu_add_dt_pci_sideband_ids(struct
> pci_dev *pdev)
>
> #endif /* HAS_DEVICE_TREE_DISCOVERY */
>
> +#if defined(CONFIG_HAS_PASSTHROUGH) || defined(CONFIG_ARM)
> +#include <asm/iommu.h>
> +#endif
> +
> struct page_info;
Why would this change be needed here?
> @@ -387,6 +391,11 @@ struct iommu_ops {
> #endif
> /* Inhibit all interrupt generation, to be used at shutdown. */
> void (*quiesce)(void);
> +
> +#ifdef CONFIG_ARM
> + int (*attach_guest_config)(struct domain *d, u32 sid,
> + struct iommu_guest_config *cfg);
> +#endif
> };
Nothing here requires anything to be pulled in, so ...
> @@ -407,10 +416,6 @@ extern int
> iommu_add_extra_reserved_device_memory(unsigned long start,
> extern int iommu_get_extra_reserved_device_memory(iommu_grdm_t *func,
> void *ctxt);
>
> -#ifdef CONFIG_HAS_PASSTHROUGH
> -#include <asm/iommu.h>
> -#endif
> -
> #ifndef iommu_call
> # define iommu_call(ops, fn, args...) ((ops)->fn(args))
> # define iommu_vcall iommu_call
... keeping the #include untouched looks entirely possible.
Jan
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