tree e297746b3abbe601ab7c3b0eaaf12e49fdaf6926
parent d81e1256f2be8181882191a4f6b92e1854cc8e72
author David Anderson <dvander@google.com> 1551303224 -0800
committer David Anderson <dvander@google.com> 1551910972 -0800

Allow gsi_tool to set whether GSI installs are single-boot or not.

Previously, init would always write "disabled" back to
/metadata/gsi/install_status, to effectively restore the host image
after the GSI reboots. This is not always desirable, so this patch
introduces a new "one_shot_boot" file. If present, the GSI will only
boot once, otherwise, it can persist until manually disabled.

This also adds a new getGsiBootStatus() method to IGsiService, so the UI
can determine whether the GSI is in single-boot mode or not.

Bug: 126148526
Test: install GSI, reboot twice - back to normal image
      gsi_tool enable --single-boot, reboot twice, back to normal image
      gsi_tool enable, reboot twice, still in GSI

Change-Id: I49bffea09bc9871502ce7bf3c27518a435357ecd