Re: [PATCH v2 3/3] ppc64: Add a flag to tell the kernel it's booting from kexec

2015-12-07 Thread Simon Horman
On Tue, Dec 08, 2015 at 02:46:17PM +1100, Michael Ellerman wrote: > On Mon, 2015-12-07 at 14:42 -0600, Scott Wood wrote: > > On Tue, 2015-10-06 at 17:55 -0500, Scott Wood wrote: > > > It needs to know this because the SMP release mechanism for Freescale > > > book3e is different from when booting w

Re: [PATCH v2 3/3] ppc64: Add a flag to tell the kernel it's booting from kexec

2015-12-07 Thread Michael Ellerman
On Mon, 2015-12-07 at 14:42 -0600, Scott Wood wrote: > On Tue, 2015-10-06 at 17:55 -0500, Scott Wood wrote: > > It needs to know this because the SMP release mechanism for Freescale > > book3e is different from when booting with normal hardware. In theory > > we could simulate the normal spin tabl

Re: [PATCH v2 3/3] ppc64: Add a flag to tell the kernel it's booting from kexec

2015-12-07 Thread Scott Wood
On Tue, 2015-10-06 at 17:55 -0500, Scott Wood wrote: > It needs to know this because the SMP release mechanism for Freescale > book3e is different from when booting with normal hardware. In theory > we could simulate the normal spin table mechanism, but not (easily) at > the addresses U-Boot put i

Re: [PATCH v2 3/3] ppc64: Add a flag to tell the kernel it's booting from kexec

2015-10-15 Thread Simon Horman
On Tue, Oct 06, 2015 at 05:55:50PM -0500, Scott Wood wrote: > It needs to know this because the SMP release mechanism for Freescale > book3e is different from when booting with normal hardware. In theory > we could simulate the normal spin table mechanism, but not (easily) at > the addresses U-Boo

[PATCH v2 3/3] ppc64: Add a flag to tell the kernel it's booting from kexec

2015-10-06 Thread Scott Wood
It needs to know this because the SMP release mechanism for Freescale book3e is different from when booting with normal hardware. In theory we could simulate the normal spin table mechanism, but not (easily) at the addresses U-Boot put in the device tree -- so there'd need to be even more communic