diff options
| author | David Gibson <david@gibson.dropbear.id.au> | 2012-06-27 14:50:40 +1000 |
|---|---|---|
| committer | Anthony Liguori <aliguori@us.ibm.com> | 2012-06-27 16:33:25 -0500 |
| commit | c65bcef30659442a45ed0842de80d246d0162fd7 (patch) | |
| tree | 618cbb6e19627aef4627b15ba6380306530dd3f9 /hw/ide | |
| parent | 9ac6a217f26d2044929ac4261826d24cc8c3dda5 (diff) | |
iommu: Make sglists and dma_bdrv helpers use new universal DMA helpers
dma-helpers.c contains a number of helper functions for doing
scatter/gather DMA, and various block device related DMA. Currently,
these directly access guest memory using cpu_physical_memory_*(),
assuming no IOMMU translation.
This patch updates this code to use the new universal DMA helper
functions. qemu_sglist_init() now takes a DMAContext * to describe
the DMA address space in which the scatter/gather will take place.
We minimally update the callers qemu_sglist_init() to pass NULL
(i.e. no translation, same as current behaviour). Some of those
callers should pass something else in some cases to allow proper IOMMU
translation in future, but that will be fixed in later patches.
Cc: Kevin Wolf <kwolf@redhat.com>
Cc: Michael S. Tsirkin <mst@redhat.com>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Diffstat (limited to 'hw/ide')
| -rw-r--r-- | hw/ide/ahci.c | 3 | ||||
| -rw-r--r-- | hw/ide/macio.c | 4 |
2 files changed, 4 insertions, 3 deletions
diff --git a/hw/ide/ahci.c b/hw/ide/ahci.c index e275e68934..6c4226da82 100644 --- a/hw/ide/ahci.c +++ b/hw/ide/ahci.c @@ -667,7 +667,8 @@ static int ahci_populate_sglist(AHCIDevice *ad, QEMUSGList *sglist) if (sglist_alloc_hint > 0) { AHCI_SG *tbl = (AHCI_SG *)prdt; - qemu_sglist_init(sglist, sglist_alloc_hint); + /* FIXME: pass the correct DMAContext */ + qemu_sglist_init(sglist, sglist_alloc_hint, NULL); for (i = 0; i < sglist_alloc_hint; i++) { /* flags_size is zero-based */ qemu_sglist_add(sglist, le64_to_cpu(tbl[i].addr), diff --git a/hw/ide/macio.c b/hw/ide/macio.c index 7b38d9e683..848cb31429 100644 --- a/hw/ide/macio.c +++ b/hw/ide/macio.c @@ -76,7 +76,7 @@ static void pmac_ide_atapi_transfer_cb(void *opaque, int ret) s->io_buffer_size = io->len; - qemu_sglist_init(&s->sg, io->len / MACIO_PAGE_SIZE + 1); + qemu_sglist_init(&s->sg, io->len / MACIO_PAGE_SIZE + 1, NULL); qemu_sglist_add(&s->sg, io->addr, io->len); io->addr += io->len; io->len = 0; @@ -133,7 +133,7 @@ static void pmac_ide_transfer_cb(void *opaque, int ret) s->io_buffer_index = 0; s->io_buffer_size = io->len; - qemu_sglist_init(&s->sg, io->len / MACIO_PAGE_SIZE + 1); + qemu_sglist_init(&s->sg, io->len / MACIO_PAGE_SIZE + 1, NULL); qemu_sglist_add(&s->sg, io->addr, io->len); io->addr += io->len; io->len = 0; |