|author||David Brazdil <email@example.com>||Mon Sep 09 18:03:35 2019 +0100|
|committer||David Brazdil <firstname.lastname@example.org>||Wed Sep 11 13:24:43 2019 +0100|
Merge manifest into the board DT, add boot flow drivers Hafnium currently supports two kinds of boot flow: (a) Linux-like, where the board FDT is passed by the boot loader to the OS kernel in first kernel arg (this is used by QEMU, FVP, RPi, ...), (b) Android-like, where the FDT used by Hafnium is compiled into it and the VMs have their own. This used to be implemented using weak symbols and each board spec overriding it with its own implementation. This patch introduces the concept of boot-flow drivers in the main tree, and the corresponding driver selected using a config option in board spec. Drivers for the two boot-flows described above are implemented. Simultaneously, the manifest is now read from the FDT available at Hafnium init time. This required two notable changes: (1) all values are copied into the manifest struct because FDT is unmapped, modified and passed to the primary VM, (2) manifest is now written as an overlay; QEMU and FVP test drivers overlay it automatically. Bug: 117551352 Change-Id: Ieae7fe4ef5b3047174ec0ad057e487660ccd5a03
Hafnium is a hypervisor, initially supporting aarch64 (64-bit ARMv8 CPUs).
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