Thread (5 messages) 5 messages, 3 authors, 2024-02-15

Re: [PATCH] arm64: Subscribe Microsoft Azure Cobalt 100 to ARM Neoverse N2 errata

From: Easwar Hariharan <hidden>
Date: 2024-02-15 22:53:37
Also in: linux-doc, lkml, stable

On 2/13/2024 4:19 PM, Easwar Hariharan wrote:
On 2/12/2024 3:44 PM, Oliver Upton wrote:
quoted
Hi Easwar,

On Mon, Feb 12, 2024 at 11:29:06PM +0000, Easwar Hariharan wrote:
quoted
Add the MIDR value of Microsoft Azure Cobalt 100, which is a Microsoft
implemented CPU based on r0p0 of the ARM Neoverse N2 CPU, and therefore
suffers from all the same errata.
Can you comment at all on where one might find this MIDR? That is, does
your hypervisor report the native MIDR of the implementation or does it
repaint it as an Arm Neoverse N2 (0x410FD490)?
We will check on the Microsoft hypervisor's plans, and get back to you.

Notwithstanding that, we do have baremetal use cases for Microsoft Azure Cobalt 100
as well where this MIDR value will show through.
<snip>

We checked in with our Microsoft hypervisor colleagues, and they do repaint the
Azure Cobalt 100 as an Arm Neoverse N2, but again, we do have baremetal use cases. 

Thanks,
Easwar


_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
Keyboard shortcuts
hback out one level
jnext message in thread
kprevious message in thread
ldrill in
Escclose help / fold thread tree
?toggle this help