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| author | David Vrabel <david.vrabel@citrix.com> | 2014-12-10 15:48:43 +0100 |
|---|---|---|
| committer | David Vrabel <david.vrabel@citrix.com> | 2014-12-10 15:58:35 +0100 |
| commit | 4ef8e3f3504808621e594f01852476a1d4e7ef93 (patch) | |
| tree | 8dde627fa2a6beb0ac7c338a9473bd6b6a11134f /drivers/xen/swiotlb-xen.c | |
| parent | xen/pci: Use APIC directly when APIC virtualization hardware is available (diff) | |
| download | linux-4ef8e3f3504808621e594f01852476a1d4e7ef93.tar.xz linux-4ef8e3f3504808621e594f01852476a1d4e7ef93.zip | |
Revert "swiotlb-xen: pass dev_addr to swiotlb_tbl_unmap_single"
This reverts commit 2c3fc8d26dd09b9d7069687eead849ee81c78e46.
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>
Diffstat (limited to 'drivers/xen/swiotlb-xen.c')
| -rw-r--r-- | drivers/xen/swiotlb-xen.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/xen/swiotlb-xen.c b/drivers/xen/swiotlb-xen.c index 5ea1e3c10907..810ad419e34c 100644 --- a/drivers/xen/swiotlb-xen.c +++ b/drivers/xen/swiotlb-xen.c @@ -451,7 +451,7 @@ static void xen_unmap_single(struct device *hwdev, dma_addr_t dev_addr, /* NOTE: We use dev_addr here, not paddr! */ if (is_xen_swiotlb_buffer(dev_addr)) { - swiotlb_tbl_unmap_single(hwdev, dev_addr, size, dir); + swiotlb_tbl_unmap_single(hwdev, paddr, size, dir); return; } |