lkml.org 
[lkml]   [2020]   [Apr]   [15]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
SubjectRe: [PATCH 3/8] arm64: cpufeature: Add CPU capability for AArch32 EL1 support
From
Date
On 04/14/2020 10:31 PM, Will Deacon wrote:
> Although we emit a "SANITY CHECK" warning and taint the kernel if we
> detect a CPU mismatch for AArch32 support at EL1, we still online the
> CPU with disastrous consequences for any running 32-bit VMs.
>
> Introduce a capability for AArch32 support at EL1 so that late onlining
> of incompatible CPUs is forbidden.
>
> Signed-off-by: Will Deacon <will@kernel.org>

One of the other important missing sanity check for KVM is the VMID
width check. I will code something up.

Reviewed-by: Suzuki K Poulose <suzuki.poulose@arm.com>

\
 
 \ /
  Last update: 2020-04-15 12:10    [W:0.192 / U:1.236 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site