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android_packages_modules_Virtualization
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Obtain pvmfw.img without rooting 

Bug: 237419686
Test: N/A
Change-Id: I31f504d111cfcb1e293f16220eb75a39562217c3
This commit is contained in:
Jiyong Park 2022-06-29 09:20:23 +09:00
parent 5b2a6e5fbe
commit e21a24bf17
1 changed files with 6 additions and 8 deletions
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14
docs/getting_started/index.md
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@ -46,24 +46,22 @@ fastboot reboot
Due to a bug in Android 13 for these devices, pKVM may stop working after an
[OTA update](https://source.android.com/devices/tech/ota). To prevent this, it
is necessary to manually replicate the `pvmfw` partition across A/B slots:
is necessary to manually replicate the `pvmfw` partition to the other slot:
```shell
adb root
SLOT=$(adb shell getprop ro.boot.slot_suffix)
adb pull /dev/block/by-name/pvmfw${SLOT} pvmfw.img
git -C <android_root>/packages/modules/Virtualization
show de6b0b2ecf6225a0a7b43241de27e74fc3e6ceb2:pvmfw/pvmfw.img > /tmp/pvmfw.img
adb reboot bootloader
fastboot --slot other flash pvmfw pvmfw.img
fastboot --slot other flash pvmfw /tmp/pvmfw.img
fastboot reboot
```
Otherwise, if an OTA has already made pKVM unusable, the working partition
should be copied over from the "other" slot:
should be copied to the "current" slot:
```shell
adb pull $(adb shell ls "/dev/block/by-name/pvmfw!(${SLOT})") pvmfw.img
adb reboot bootloader
fastboot flash pvmfw pvmfw.img
fastboot flash pvmfw /tmp/pvmfw.img
fastboot reboot
```