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Diffstat (limited to 'docs/plat/qemu.rst')
| -rw-r--r-- | docs/plat/qemu.rst | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/docs/plat/qemu.rst b/docs/plat/qemu.rst index 4ebe64b85..a4c5bec71 100644 --- a/docs/plat/qemu.rst +++ b/docs/plat/qemu.rst @@ -10,6 +10,10 @@ loop to be released by normal world via PSCI. BL2 edits the Flattened Device Tree, FDT, generated by QEMU at run-time to add a node describing PSCI and also enable methods for the CPUs. +If ``ARM_LINUX_KERNEL_AS_BL33`` is set to 1 then this FDT will be passed to BL33 +via register x0, as expected by a Linux kernel. This allows a Linux kernel image +to be booted directly as BL33 rather than using a bootloader. + An ARM64 defconfig v4.5 Linux kernel is known to boot, FDT doesn't need to be provided as it's generated by QEMU. |