diff options
Diffstat (limited to 'hw')
| -rw-r--r-- | hw/audio/es1370.c | 9 | ||||
| -rw-r--r-- | hw/s390x/s390-pci-vfio.c | 6 |
2 files changed, 12 insertions, 3 deletions
diff --git a/hw/audio/es1370.c b/hw/audio/es1370.c index 91c47330ad..fad5541211 100644 --- a/hw/audio/es1370.c +++ b/hw/audio/es1370.c @@ -670,8 +670,13 @@ static void es1370_transfer_audio (ES1370State *s, struct chan *d, int loop_sel, cnt += (transferred + d->leftover) >> 2; if (s->sctl & loop_sel) { - /* Bah, how stupid is that having a 0 represent true value? - i just spent few hours on this shit */ + /* + * loop_sel tells us which bit in the SCTL register to look at + * (either P1_LOOP_SEL, P2_LOOP_SEL or R1_LOOP_SEL). The sense + * of these bits is 0 for loop mode (set interrupt and keep recording + * when the sample count reaches zero) or 1 for stop mode (set + * interrupt and stop recording). + */ AUD_log ("es1370: warning", "non looping mode\n"); } else { d->frame_cnt = size; diff --git a/hw/s390x/s390-pci-vfio.c b/hw/s390x/s390-pci-vfio.c index 59a2e03873..7dbbc76823 100644 --- a/hw/s390x/s390-pci-vfio.c +++ b/hw/s390x/s390-pci-vfio.c @@ -66,6 +66,10 @@ S390PCIDMACount *s390_pci_start_dma_count(S390pciState *s, assert(vpdev); + if (!vpdev->vbasedev.group) { + return NULL; + } + id = vpdev->vbasedev.group->container->fd; if (!s390_pci_update_dma_avail(id, &avail)) { @@ -132,7 +136,7 @@ static void s390_pci_read_base(S390PCIBusDevice *pbdev, * to the guest based upon the vfio DMA limit. */ vfio_size = pbdev->iommu->max_dma_limit << TARGET_PAGE_BITS; - if (vfio_size < (cap->end_dma - cap->start_dma + 1)) { + if (vfio_size > 0 && vfio_size < cap->end_dma - cap->start_dma + 1) { pbdev->zpci_fn.edma = cap->start_dma + vfio_size - 1; } } |