[v2] Initialize only bootable virtio-blk/virtio-blk

[SeaBIOS] [PATCH v2 0/2] Initialize only bootable virtio-blk/virtio-blk

Alexey Kirillov posted 2 patches 4 years, 3 months ago

Diff against v1 v3
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git fetch https://github.com/patchew-project/seabios tags/patchew/20191230100738.6797-1-lekiravi@yandex-team.ru

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src/boot.c           |  5 +++++
src/hw/virtio-blk.c  | 11 ++++++++++-
src/hw/virtio-scsi.c | 11 ++++++++++-
src/util.h           |  1 +
4 files changed, 26 insertions(+), 2 deletions(-)

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[SeaBIOS] [PATCH v2 0/2] Initialize only bootable virtio-blk/virtio-blk

Posted by Alexey Kirillov 4 years, 3 months ago

This patch aimed to avoid problem with uninitialized virtio-blk and
virtio-scsi boot devices.
Currently, 12 KiB of memory is allocated for each virtio-blk/scsi, so
no more than about 10 devices can be initialized. If the device is not
initialized, we cannot boot from it. So, if we have more than 10 devices,
we can't boot from any of the following (11, 12, etc.).
We can initialize only bootable devices, i.e. listed in boot order list,
that this patch does.

Alexey Kirillov (2):
  boot: Detect strict boot order (HALT record) in function
  virtio: Do not init non-bootable devices

 src/boot.c           |  5 +++++
 src/hw/virtio-blk.c  | 11 ++++++++++-
 src/hw/virtio-scsi.c | 11 ++++++++++-
 src/util.h           |  1 +
 4 files changed, 26 insertions(+), 2 deletions(-)

-- 
2.17.1
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