| Message ID | 20201026105504.4023620-13-philmd@redhat.com |
|---|---|
| State | New |
| Headers | show |
| Series | util/vfio-helpers: Allow using multiple MSIX IRQs | expand |
Hi Philippe, On 10/26/20 11:54 AM, Philippe Mathieu-Daudé wrote: > Pass qemu_vfio_do_mapping() an Error* argument so it can propagate > any error to callers. Replace error_report() which only report > to the monitor by the more generic error_setg_errno(). > > Reviewed-by: Fam Zheng <fam@euphon.net> > Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com> > Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com> > --- > util/vfio-helpers.c | 8 ++++---- > 1 file changed, 4 insertions(+), 4 deletions(-) > > diff --git a/util/vfio-helpers.c b/util/vfio-helpers.c > index c03fe0b7156..2c4598d7faa 100644 > --- a/util/vfio-helpers.c > +++ b/util/vfio-helpers.c > @@ -609,7 +609,7 @@ static IOVAMapping *qemu_vfio_add_mapping(QEMUVFIOState *s, > > /* Do the DMA mapping with VFIO. */ > static int qemu_vfio_do_mapping(QEMUVFIOState *s, void *host, size_t size, > - uint64_t iova) > + uint64_t iova, Error **errp) > { > struct vfio_iommu_type1_dma_map dma_map = { > .argsz = sizeof(dma_map), > @@ -621,7 +621,7 @@ static int qemu_vfio_do_mapping(QEMUVFIOState *s, void *host, size_t size, > trace_qemu_vfio_do_mapping(s, host, iova, size); > > if (ioctl(s->container, VFIO_IOMMU_MAP_DMA, &dma_map)) { > - error_report("VFIO_MAP_DMA failed: %s", strerror(errno)); > + error_setg_errno(errp, errno, "VFIO_MAP_DMA failed"); > return -errno; > } > return 0; > @@ -757,7 +757,7 @@ int qemu_vfio_dma_map(QEMUVFIOState *s, void *host, size_t size, There are other error cases in qemu_vfio_dma_map() where you must set errp. Otherwise the caller may, in the future test the returned value and incorrectly handle the errp. Thanks Eric > goto out; > } > assert(qemu_vfio_verify_mappings(s)); > - ret = qemu_vfio_do_mapping(s, host, size, iova0); > + ret = qemu_vfio_do_mapping(s, host, size, iova0, errp); > if (ret) { > qemu_vfio_undo_mapping(s, mapping, NULL); > goto out; > @@ -768,7 +768,7 @@ int qemu_vfio_dma_map(QEMUVFIOState *s, void *host, size_t size, > ret = -ENOMEM; > goto out; > } > - ret = qemu_vfio_do_mapping(s, host, size, iova0); > + ret = qemu_vfio_do_mapping(s, host, size, iova0, errp); > if (ret) { > goto out; > } >
diff --git a/util/vfio-helpers.c b/util/vfio-helpers.c index c03fe0b7156..2c4598d7faa 100644 --- a/util/vfio-helpers.c +++ b/util/vfio-helpers.c @@ -609,7 +609,7 @@ static IOVAMapping *qemu_vfio_add_mapping(QEMUVFIOState *s, /* Do the DMA mapping with VFIO. */ static int qemu_vfio_do_mapping(QEMUVFIOState *s, void *host, size_t size, - uint64_t iova) + uint64_t iova, Error **errp) { struct vfio_iommu_type1_dma_map dma_map = { .argsz = sizeof(dma_map), @@ -621,7 +621,7 @@ static int qemu_vfio_do_mapping(QEMUVFIOState *s, void *host, size_t size, trace_qemu_vfio_do_mapping(s, host, iova, size); if (ioctl(s->container, VFIO_IOMMU_MAP_DMA, &dma_map)) { - error_report("VFIO_MAP_DMA failed: %s", strerror(errno)); + error_setg_errno(errp, errno, "VFIO_MAP_DMA failed"); return -errno; } return 0; @@ -757,7 +757,7 @@ int qemu_vfio_dma_map(QEMUVFIOState *s, void *host, size_t size, goto out; } assert(qemu_vfio_verify_mappings(s)); - ret = qemu_vfio_do_mapping(s, host, size, iova0); + ret = qemu_vfio_do_mapping(s, host, size, iova0, errp); if (ret) { qemu_vfio_undo_mapping(s, mapping, NULL); goto out; @@ -768,7 +768,7 @@ int qemu_vfio_dma_map(QEMUVFIOState *s, void *host, size_t size, ret = -ENOMEM; goto out; } - ret = qemu_vfio_do_mapping(s, host, size, iova0); + ret = qemu_vfio_do_mapping(s, host, size, iova0, errp); if (ret) { goto out; }