On 21 Dec 16 13:07, David Miller wrote: > From: Larry Bassel <larry.bassel@xxxxxxxxxx> > Date: Wed, 21 Dec 2016 09:12:13 -0800 > > > Orabug: 24789774 > > > > The command "shutdown -h -H now" should shut down the system to > > OBP, however the machine was incorrectly being powered off instead > > (on both LDOM and bare metal). > > > > The "exit" command to the OBP must be run and then a hard > > loop to prevent return to the kernel. > > > > Signed-off-by: Larry Bassel <larry.bassel@xxxxxxxxxx> > > On LDOM, once you boot past the early stages of the kernel, OBP is > considered volatile and thus unusable. My code does work on an 4.9.0 LDOM (we get to the ok prompt). So you're saying this was a "lucky accident" and there is no "clean" way of getting back to the OBP when we are in a LDOM (i.e. all we can do is power off which is what the current code does)? > > That's why I did a direct LDOM shutdown here. Unfortunately, the variable "ldom_domaining_enabled" is 1 even when we are not in an LDOM (I just double checked this by printing the value out as we shut down) and so the current code will power off in the bare metal case as well. Is there is a good way of determining that we are running on bare metal? Thanks. Larry > -- > To unsubscribe from this list: send the line "unsubscribe sparclinux" in > the body of a message to majordomo@xxxxxxxxxxxxxxx > More majordomo info at http://vger.kernel.org/majordomo-info.html -- To unsubscribe from this list: send the line "unsubscribe sparclinux" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
