Re: arm64 crashkernel fails to boot on acpi-only machines due to ACPI regions being no longer mapped as NOMAP

2018-01-08 Thread AKASHI Takahiro
On Tue, Dec 26, 2017 at 02:58:45PM +0800, Dave Young wrote: > On 12/26/17 at 08:26am, Bhupesh Sharma wrote: > > On Tue, Dec 26, 2017 at 7:58 AM, AKASHI Takahiro > > wrote: > > > On Tue, Dec 26, 2017 at 09:35:17AM +0800, Dave Young wrote: > > >> [snip] > > >> > > >

Re: arm64 crashkernel fails to boot on acpi-only machines due to ACPI regions being no longer mapped as NOMAP

2018-01-08 Thread AKASHI Takahiro
On Tue, Dec 26, 2017 at 02:56:36PM +0800, Dave Young wrote: > On 12/26/17 at 11:28am, AKASHI Takahiro wrote: > > On Tue, Dec 26, 2017 at 09:35:17AM +0800, Dave Young wrote: > > > [snip] > > > > > > Well, we may be able to change pr_warn() to pr_warn_once() here, but > > > > > > I hope that adding

Re: arm64 crashkernel fails to boot on acpi-only machines due to ACPI regions being no longer mapped as NOMAP

2018-01-08 Thread AKASHI Takahiro
Bhupesh, On Tue, Jan 09, 2018 at 01:30:07AM +0530, Bhupesh Sharma wrote: > Hello Akashi, > > On Tue, Dec 26, 2017 at 8:26 AM, Bhupesh Sharma wrote: > > On Tue, Dec 26, 2017 at 7:58 AM, AKASHI Takahiro > > wrote: > >> On Tue, Dec 26, 2017 at

[PATCH] efi: Clarify that reset attack mitigation needs appropriate userspace

2018-01-08 Thread Matthew Garrett
Some distributions have turned on the reset attack mitigation feature, which is designed to force the platform to clear the contents of RAM if the machine is shut down uncleanly. However, in order for the platform to be able to determine whether the shutdown was clean or not, userspace has to be

Re: arm64 crashkernel fails to boot on acpi-only machines due to ACPI regions being no longer mapped as NOMAP

2018-01-08 Thread Bhupesh Sharma
Hello Akashi, On Tue, Dec 26, 2017 at 8:26 AM, Bhupesh Sharma wrote: > On Tue, Dec 26, 2017 at 7:58 AM, AKASHI Takahiro > wrote: >> On Tue, Dec 26, 2017 at 09:35:17AM +0800, Dave Young wrote: >>> [snip] >>> > > > Well, we may be able to change

[PATCH 4.14 13/38] efi/capsule-loader: Reinstate virtual capsule mapping

2018-01-08 Thread Greg Kroah-Hartman
4.14-stable review patch. If anyone has any objections, please let me know. -- From: Ard Biesheuvel commit f24c4d478013d82bd1b943df566fff3561d52864 upstream. Commit: 82c3768b8d68 ("efi/capsule-loader: Use a cached copy of the capsule header")