[PATCH RESEND v3 00/10] hw: Let DMA/PCI API propagate MemTxResult

[Philippe Mathieu-Daudé]

Currently the MemTxResult return value is not propagated,
so lost. The motivation behind this series is to make the
API more robust to enforce correct use by the consumers.

All series reviewed.

Since v2:
- Rebased
- Removed patches adding MemTxAttrs argument to DMA/PCI API
  (we will discuss them later).

v2:
https://www.mail-archive.com/qemu-devel@nongnu.org/msg746761.html

The DMA API propagates MemTxResult:
- MEMTX_OK,
- MEMTX_device_ERROR,
- MEMTX_DECODE_ERROR.

Let the PCI DMA API propagate them, as they are
clearer than an undocumented 'int'.

Supersedes: <20201001172519.1620782-1-philmd@redhat.com>

Klaus Jensen (1):
  pci: pass along the return value of dma_memory_rw

Philippe Mathieu-Daudé (9):
  docs/devel/loads-stores: Add regexp for DMA functions
  dma: Document address_space_map/address_space_unmap() prototypes
  dma: Let dma_memory_set() propagate MemTxResult
  dma: Let dma_memory_rw() propagate MemTxResult
  dma: Let dma_memory_read() propagate MemTxResult
  dma: Let dma_memory_write() propagate MemTxResult
  pci: Let pci_dma_rw() propagate MemTxResult
  pci: Let pci_dma_read() propagate MemTxResult
  pci: Let pci_dma_write() propagate MemTxResult

 docs/devel/loads-stores.rst |   2 +
 include/hw/pci/pci.h        |  53 +++++++++++++---
 include/sysemu/dma.h        | 117 ++++++++++++++++++++++++++++++------
 softmmu/dma-helpers.c       |   7 ++-
 4 files changed, 150 insertions(+), 29 deletions(-)

-- 
2.26.2