From e02cda008591317b1625707ff8e115a4841aa889 Mon Sep 17 00:00:00 2001 From: Timos Ampelikiotis <t.ampelikiotis@virtualopensystems.com> Date: Tue, 10 Oct 2023 11:40:56 +0000 Subject: Introduce Virtio-loopback epsilon release: Epsilon release introduces a new compatibility layer which make virtio-loopback design to work with QEMU and rust-vmm vhost-user backend without require any changes. Signed-off-by: Timos Ampelikiotis <t.ampelikiotis@virtualopensystems.com> Change-Id: I52e57563e08a7d0bdc002f8e928ee61ba0c53dd9 --- util/block-helpers.h | 19 +++++++++++++++++++ 1 file changed, 19 insertions(+) create mode 100644 util/block-helpers.h (limited to 'util/block-helpers.h') diff --git a/util/block-helpers.h b/util/block-helpers.h new file mode 100644 index 000000000..b53295a52 --- /dev/null +++ b/util/block-helpers.h @@ -0,0 +1,19 @@ +#ifndef BLOCK_HELPERS_H +#define BLOCK_HELPERS_H + +#include "qemu/units.h" + +/* lower limit is sector size */ +#define MIN_BLOCK_SIZE INT64_C(512) +#define MIN_BLOCK_SIZE_STR "512 B" +/* + * upper limit is arbitrary, 2 MiB looks sufficient for all sensible uses, and + * matches qcow2 cluster size limit + */ +#define MAX_BLOCK_SIZE (2 * MiB) +#define MAX_BLOCK_SIZE_STR "2 MiB" + +void check_block_size(const char *id, const char *name, int64_t value, + Error **errp); + +#endif /* BLOCK_HELPERS_H */ -- cgit