commit ba8929b19ec0ec0e89712b7b0cc76161550bc539
author Jaewan Kim <jaewan@google.com> Fri Jan 13 11:13:29 2023 +0900
committer Jaewan Kim <jaewan@google.com> Wed Feb 01 13:00:04 2023 +0900
tree e964244e030b350f22c4ede9aefa272e6b56ffe0
parent f27528641184f4805d9bd7705187d8d0f871baa6

Disable ramdump with debug policy

This CL disables ramdump if debug policy doesn't explicitly
enables ramdump via ramdump prop in the /avf/guest/common node.

The virtualization service always provides crashkernel=17M via
kernel command, so this CL removes crashkernel=17MB in the
microdroid's bootargs in the /chosen node.

Here's the test result on my machine with MicrodroidTestApp.

  - Before the CL (or this CL + ramdump is enabled)
    $ adb shell /proc/meminfo
    MemTotal:         212968 kB
    MemFree:          138336 kB
    MemAvailable:     171980 kB

  - With this CL + ramdump is disabled
    $ adb shell /proc/meminfo
    MemTotal:         230372 kB
    MemFree:          165240 kB
    MemAvailable:     192648 kB

Bug: 243630590
Test:  Boot microdroid with following AVF debug policies \
  - AVF debug policy exists, and ramdump=<1> \
  - AVF debug policy exists, and ramdump=<0> \
  - No AVF debug policy
Change-Id: Ia486448b5513c2d5662a4f16ddb3334b20913329