Re: [PATCH v23 4/8] crash: memory and CPU hotplug sysfs attributes

2023-06-16 Thread Eric DeVolder
On 6/13/23 03:03, Greg KH wrote: On Mon, Jun 12, 2023 at 05:07:08PM -0400, Eric DeVolder wrote: Introduce the crash_hotplug attribute for memory and CPUs for use by userspace. These attributes directly facilitate the udev rule for managing userspace re-loading of the crash kernel upon hot

Re: [PATCH v6 04/14] x86: Secure Launch Resource Table header file

2023-06-16 Thread Matthew Garrett
On Fri, Jun 16, 2023 at 04:01:09PM -0400, Daniel P. Smith wrote: > On 5/15/23 21:43, Matthew Garrett wrote: > > On Mon, May 15, 2023 at 08:41:00PM -0400, Daniel P. Smith wrote: > > > On 5/15/23 17:22, Matthew Garrett wrote: > > > > What if I don't use grub, but use something that behaves

Re: [PATCH v6 04/14] x86: Secure Launch Resource Table header file

2023-06-16 Thread Daniel P. Smith
On 5/15/23 21:43, Matthew Garrett wrote: On Mon, May 15, 2023 at 08:41:00PM -0400, Daniel P. Smith wrote: On 5/15/23 17:22, Matthew Garrett wrote: What if I don't use grub, but use something that behaves equivalently? Which value should be used here? Generally we would request that the

Re: [PATCH v6 02/14] Documentation/x86: Secure Launch kernel documentation

2023-06-16 Thread Daniel P. Smith
On 6/16/23 12:54, Matthew Garrett wrote: On Fri, Jun 16, 2023 at 12:44:27PM -0400, Daniel P. Smith wrote: On 5/12/23 06:47, Matthew Garrett wrote: On Thu, May 04, 2023 at 02:50:11PM +, Ross Philipson wrote: +Secure Launch does not interoperate with KASLR. If possible, the MLE should be

Re: [PATCH v6 02/14] Documentation/x86: Secure Launch kernel documentation

2023-06-16 Thread Matthew Garrett
On Fri, Jun 16, 2023 at 12:44:27PM -0400, Daniel P. Smith wrote: > > On 5/12/23 06:47, Matthew Garrett wrote: > > On Thu, May 04, 2023 at 02:50:11PM +, Ross Philipson wrote: > > > +Secure Launch does not interoperate with KASLR. If possible, the MLE > > > should be > > > +built with KASLR

Re: [PATCH v6 02/14] Documentation/x86: Secure Launch kernel documentation

2023-06-16 Thread Daniel P. Smith
On 5/12/23 06:47, Matthew Garrett wrote: On Thu, May 04, 2023 at 02:50:11PM +, Ross Philipson wrote: +Secure Launch does not interoperate with KASLR. If possible, the MLE should be +built with KASLR disabled:: Why does Secure Launch not interoperate with KASLR? Re: IOMMUs Until the

Re: [PATCH v2] x86/kexec: Add EFI config table identity mapping for kexec kernel

2023-06-16 Thread Baoquan He
Hi, On 06/01/23 at 03:20pm, Tao Liu wrote: > A kexec kernel bootup hang is observed on Intel Atom cpu due to unmapped > EFI config table. Ping! The issue is observed on Lenovo ThinkEdge mini PC owning 'Intel Atom(R) x6425RE' cpu, and reported by Lenovo engineer. On the machine, kdump kernel