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pci: Add a memory attribute for pre-translated DMA operations

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The address_type bit will be set to PCI_AT_TRANSLATED by devices that
use cached addresses obtained via ATS.

Signed-off-by: Clement Mathieu--Drif <clement.mathieu--drif@eviden.com>
Message-Id: <20250628180226.133285-2-clement.mathieu--drif@eviden.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
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CLEMENT MATHIEU--DRIF 2025-06-28 18:03:58 +00:00 • committed by Michael S. Tsirkin
parent 4bf06bcf07
commit 06895f7948
2 changed files with 12 additions and 0 deletions
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3
include/exec/memattrs.h
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@ -54,6 +54,9 @@ typedef struct MemTxAttrs {
*/
unsigned int pid:8;
/* PCI - IOMMU operations, see PCIAddressType */
unsigned int address_type:1;
/*
* Bus masters which don't specify any attributes will get this
* (via the MEMTXATTRS_UNSPECIFIED constant), so that we can