On Mon, Apr 4, 2016 at 12:38 PM, Borislav Petkov <b...@alien8.de> wrote: > On Mon, Apr 04, 2016 at 06:00:42PM +0200, Peter Zijlstra wrote: >> On Mon, Apr 04, 2016 at 08:32:21AM -0700, Andy Lutomirski wrote: >> >> > Adding locking would be easy enough, wouldn't it? >> >> See patch in this thread.. >> >> > But do any platforms really boot a second CPU before switching to real >> > printk? >> >> I _only_ use early_printk() as printk() is a quagmire of fail :-) > > And since I'm the king of minimalistic changes... this below > works. However, the problem is that we need to pull up all that > early_param parsing in order to enable the early console, i.e. > "earlyprintk=ttyS0,115200" cmdline parsing. > > And we can do all that after having setup the IDT. So I'd need to do > some early dancing with cmdline_find_option_bool(boot_command_line, ... > in asm or so. Need to think about it more. >
I'd be nervous about moving early param parsing, especially as part of the same patch. Could you do it by moving just the earlyprintk stuff a la fpu__init_parse_early_param()? --Andy _______________________________________________ Xen-devel mailing list Xen-devel@lists.xen.org http://lists.xen.org/xen-devel
