On 23/03/2016 22:32, Dominik Dingel wrote:
> - page_size = qemu_fd_getpagesize(fd);
> - block->mr->align = page_size;
> + alignment = MAX(qemu_fd_getpagesize(fd), QEMU_VMALLOC_ALIGN);
> + block->mr->align = alignment;
>
> - if (memory < page_size) {
> + if (memory < alignment) {
> error_setg(errp, "memory size 0x" RAM_ADDR_FMT " must be equal to "
> - "or larger than page size 0x%" PRIx64,
> - memory, page_size);
> + "or larger than needed alignment 0x%" PRIx64,
> + memory, alignment);
> goto error;
> }
Why is this part necessary? On x86 you can have 1 megabyte of RAM,
but QEMU_VMALLOC_ALIGN is 2MB.
Paolo
> - memory = ROUND_UP(memory, page_size);
> + memory = ROUND_UP(memory, alignment);
>
