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00f6ebbd0177a4cb15b353bbd4eaee6372fdbbc2
linux
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arch
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arm
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include
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asm
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xen
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swiotlb-xen.h
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xen/arm: introduce XENFEAT_direct_mapped and XENFEAT_not_direct_mapped Newer Xen versions expose two Xen feature flags to tell us if the domain is directly mapped or not. Only when a domain is directly mapped it makes sense to enable swiotlb-xen on ARM. Introduce a function on ARM to check the new Xen feature flags and also to deal with the legacy case. Call the function xen_swiotlb_detect. Signed-off-by: Stefano Stabellini <stefano.stabellini@xilinx.com> Reviewed-by: Boris Ostrovsky <boris.ostrovsky@oracle.com> Link: https://lore.kernel.org/r/20210319200140.12512-1-sstabellini@kernel.org Signed-off-by: Juergen Gross <jgross@suse.com>
2021-03-19 13:01:40 -07:00
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