[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] Re: [Xen-devel] [RFC PATCH 0/2] xen/arm: fix "xen_add_mach_to_phys_entry: cannot add" problem
Hi Stefano,(Drop Linux ARM as my comment is only Xen specific and avoid spamming the Linux ML) On 07/07/14 21:24, Stefano Stabellini wrote: diff --git a/xen/include/asm-arm/grant_table.h b/xen/include/asm-arm/grant_table.h index eac8a70..95519c5 100644 --- a/xen/include/asm-arm/grant_table.h +++ b/xen/include/asm-arm/grant_table.h @@ -34,7 +34,7 @@ static inline int replace_grant_supported(void) (i < max_nr_grant_frames)) ? 0 : (d->arch.grant_table_gpfn[i])) #define gnttab_need_iommu_mapping(d) \ - (is_domain_direct_mapped(d) && need_iommu(d)) + (is_domain_direct_mapped(d)) I suspect you tried this series on Midway with SMMU enabled, right?This patch won't work on platform with iommu disabled (see check in iommu_{,un}map_page) and if we are using an other driver than the SMMU. This is because the mapping is drivers specific. #endif /* __ASM_GRANT_TABLE_H__ */ /* -- Julien Grall _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxx http://lists.xen.org/xen-devel
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