diff options
Diffstat (limited to 'hw')
| -rw-r--r-- | hw/net/ftgmac100.c | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/hw/net/ftgmac100.c b/hw/net/ftgmac100.c index 4ad2594d3a..2f92b65d4e 100644 --- a/hw/net/ftgmac100.c +++ b/hw/net/ftgmac100.c @@ -198,6 +198,8 @@ typedef struct { uint32_t des3; } FTGMAC100Desc; +#define FTGMAC100_DESC_ALIGNMENT 16 + /* * Specific RTL8211E MII Registers */ @@ -722,6 +724,12 @@ static void ftgmac100_write(void *opaque, hwaddr addr, s->itc = value; break; case FTGMAC100_RXR_BADR: /* Ring buffer address */ + if (!QEMU_IS_ALIGNED(value, FTGMAC100_DESC_ALIGNMENT)) { + qemu_log_mask(LOG_GUEST_ERROR, "%s: Bad RX buffer alignment 0x%" + HWADDR_PRIx "\n", __func__, value); + return; + } + s->rx_ring = value; s->rx_descriptor = s->rx_ring; break; @@ -731,6 +739,11 @@ static void ftgmac100_write(void *opaque, hwaddr addr, break; case FTGMAC100_NPTXR_BADR: /* Transmit buffer address */ + if (!QEMU_IS_ALIGNED(value, FTGMAC100_DESC_ALIGNMENT)) { + qemu_log_mask(LOG_GUEST_ERROR, "%s: Bad TX buffer alignment 0x%" + HWADDR_PRIx "\n", __func__, value); + return; + } s->tx_ring = value; s->tx_descriptor = s->tx_ring; break; |