On Tue, Dec 20, 2022 at 09:42:46AM +0100, Gerd Hoffmann wrote: > From: Xiang Zheng <zhengxia...@huawei.com> > > Currently we fill the VIRT_FLASH memory space with two 64MB NOR images > when using persistent UEFI variables on virt board. Actually we only use > a very small(non-zero) part of the memory while the rest significant > large(zero) part of memory is wasted. > > So this patch checks the block status and only writes the non-zero part > into memory. This requires pflash devices to use sparse files for > backends. > > Signed-off-by: Xiang Zheng <zhengxia...@huawei.com> > > [ kraxel: rebased to latest master ] > > Signed-off-by: Gerd Hoffmann <kra...@redhat.com> > --- > hw/block/block.c | 36 +++++++++++++++++++++++++++++++++++- > 1 file changed, 35 insertions(+), 1 deletion(-)
Reviewed-by: Daniel P. Berrangé <berra...@redhat.com> With regards, Daniel -- |: https://berrange.com -o- https://www.flickr.com/photos/dberrange :| |: https://libvirt.org -o- https://fstop138.berrange.com :| |: https://entangle-photo.org -o- https://www.instagram.com/dberrange :|
