[Qemu-devel] [RFC PATCH v5 0/4] reload images from host rootfs once reset to save footprint

[Olivia Yin]

The current model of loader copy "rom blobs" and kept in memory until 
a reset occurs and waste host memory.

This serial of patches uses private reset handlers to load from hard 
disk on reset, which could make loader framework more dynamic and 
reduce the memory consumption of QEMU process.

Olivia Yin (4):
  use image_file_reset to reload initrd image
  use uimage_reset to reload uimage
  use elf_reset to reload elf image
  free the memory malloced by load_at()

 elf.h        |   10 +++++
 hw/elf_ops.h |   42 +++++++++++++++++++--
 hw/loader.c  |  114 +++++++++++++++++++++++++++++++++++++++++++++++++---------
 hw/loader.h  |   13 +++++++
 4 files changed, 158 insertions(+), 21 deletions(-)

v5: 
patch 2/4: remove global variables is_linux and kernel_loaded.
patch 3/4: register reset handlers in loader.c for elf images.
           extract the duplicated source code into function elf_phy_loader().
patch 4/4: fix the issue of memory increasing (about 1.4MB) once reload elf 
image.