diff options
Diffstat (limited to 'vu_common.c')
| -rw-r--r-- | vu_common.c | 22 |
1 files changed, 12 insertions, 10 deletions
diff --git a/vu_common.c b/vu_common.c index b77b214..b716070 100644 --- a/vu_common.c +++ b/vu_common.c @@ -25,26 +25,28 @@ /** * vu_packet_check_range() - Check if a given memory zone is contained in * a mapped guest memory region - * @buf: Array of the available memory regions + * @memory: Array of the available memory regions * @ptr: Start of desired data range - * @size: Length of desired data range + * @len: Length of desired data range * * Return: 0 if the zone is in a mapped memory region, -1 otherwise */ -int vu_packet_check_range(void *buf, const char *ptr, size_t len) +int vu_packet_check_range(struct vdev_memory *memory, + const char *ptr, size_t len) { - struct vu_dev_region *dev_region; + struct vu_dev_region *dev_region = memory->regions; + unsigned int i; - for (dev_region = buf; dev_region->mmap_addr; dev_region++) { - uintptr_t base_addr = dev_region->mmap_addr + - dev_region->mmap_offset; + for (i = 0; i < memory->nregions; i++) { + uintptr_t base_addr = dev_region[i].mmap_addr + + dev_region[i].mmap_offset; /* NOLINTNEXTLINE(performance-no-int-to-ptr) */ const char *base = (const char *)base_addr; - ASSERT(base_addr >= dev_region->mmap_addr); + ASSERT(base_addr >= dev_region[i].mmap_addr); - if (len <= dev_region->size && base <= ptr && - (size_t)(ptr - base) <= dev_region->size - len) + if (len <= dev_region[i].size && base <= ptr && + (size_t)(ptr - base) <= dev_region[i].size - len) return 0; } |