forked from luck/tmp_suning_uos_patched
Revert "swiotlb-xen: pass dev_addr to swiotlb_tbl_unmap_single"
This reverts commit 2c3fc8d26d
.
This commit broke on x86 PV because entries in the generic SWIOTLB are
indexed using (pseudo-)physical address not DMA address and these are
not the same in a x86 PV guest.
Signed-off-by: David Vrabel <david.vrabel@citrix.com>
Reviewed-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
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@ -451,7 +451,7 @@ static void xen_unmap_single(struct device *hwdev, dma_addr_t dev_addr,
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/* NOTE: We use dev_addr here, not paddr! */
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if (is_xen_swiotlb_buffer(dev_addr)) {
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swiotlb_tbl_unmap_single(hwdev, dev_addr, size, dir);
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swiotlb_tbl_unmap_single(hwdev, paddr, size, dir);
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return;
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}
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