arm64: early_printk: add support for FastModel console output
authorMarc Zyngier <Marc.Zyngier@arm.com>
Wed, 27 Feb 2013 18:06:00 +0000 (18:06 +0000)
committerCatalin Marinas <catalin.marinas@arm.com>
Wed, 20 Mar 2013 16:46:42 +0000 (16:46 +0000)
commit0492f72508184d451101564e235b0c32edf9acd3
treeb14e17c7985fdf92bfb31092fa2c28cbcde8d20a
parentd9c1951f400942bbdb41e75a73d151e4a9d5469e
arm64: early_printk: add support for FastModel console output

Enable early_printk to use the FastModel semihosting to output
the early kernel messages. Works both for host and guest kernels.

To use this feature, pass "early_printk=smh" to the kernel.

Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
arch/arm64/kernel/early_printk.c