Re: [PATCH] xen/arm64: Hide FEAT_SME

2024-08-22 Thread Julien Grall
Hi, On 16/08/2024 08:15, Michal Orzel wrote: > On 14/08/2024 23:00, Julien Grall wrote: Newer hardware may support FEAT_SME. Xen doesn't have any knowledge but it will still expose the feature to the VM. If the OS is trying to use SME, then it will crash. Solve by hiding FEAT_SME. Signed-of

Re: [PATCH] xen/arm64: Hide FEAT_SME

2024-08-16 Thread Michal Orzel
Hi Julien, On 14/08/2024 23:00, Julien Grall wrote: > > > Newer hardware may support FEAT_SME. Xen doesn't have any knowledge but > it will still expose the feature to the VM. If the OS is trying to use > SME, then it will crash. > > Solve by hiding FEAT_SME. > > Signed-off-by: Julien Grall A

Re: [PATCH] xen/arm64: Hide FEAT_SME

2024-08-15 Thread Ayan Kumar Halder
On 15/08/2024 10:37, Julien Grall wrote: On 15/08/2024 09:58, Ayan Kumar Halder wrote: Hi Julien, Hi Ayan, Hi Julien, On 14/08/2024 22:00, Julien Grall wrote: CAUTION: This message has originated from an External Source. Please use proper judgment and caution when opening attachments,

Re: [PATCH] xen/arm64: Hide FEAT_SME

2024-08-15 Thread Julien Grall
On 15/08/2024 09:58, Ayan Kumar Halder wrote: Hi Julien, Hi Ayan, On 14/08/2024 22:00, Julien Grall wrote: CAUTION: This message has originated from an External Source. Please use proper judgment and caution when opening attachments, clicking links, or responding to this email. Newer

Re: [PATCH] xen/arm64: Hide FEAT_SME

2024-08-15 Thread Ayan Kumar Halder
Hi Julien, On 14/08/2024 22:00, Julien Grall wrote: CAUTION: This message has originated from an External Source. Please use proper judgment and caution when opening attachments, clicking links, or responding to this email. Newer hardware may support FEAT_SME. Xen doesn't have any knowledge

[PATCH] xen/arm64: Hide FEAT_SME

2024-08-14 Thread Julien Grall
Newer hardware may support FEAT_SME. Xen doesn't have any knowledge but it will still expose the feature to the VM. If the OS is trying to use SME, then it will crash. Solve by hiding FEAT_SME. Signed-off-by: Julien Grall --- The current approach used to create the domain cpuinfo is to hide (i