Re: [PATCH v3 01/18] xen/arm64: flushtlb: Reduce scope of barrier for local TLB flush

2023-01-23 Thread Ayan Kumar Halder
On 12/12/2022 09:55, 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. From: Julien Grall Per D5-4929 in ARM DDI 0487H.a: "A DSB NSH is sufficient

Re: [PATCH v3 01/18] xen/arm64: flushtlb: Reduce scope of barrier for local TLB flush

2022-12-13 Thread Michal Orzel
Hi Julien, On 13/12/2022 10:45, Julien Grall wrote: > > > On 13/12/2022 09:11, Michal Orzel wrote: >> Hi Julien, > > Hi Michal, > >> On 12/12/2022 10:55, Julien Grall wrote: >>> >>> >>> From: Julien Grall >>> >>> Per D5-4929 in ARM DDI 0487H.a: >>> "A DSB NSH is sufficient to ensure completio

Re: [PATCH v3 01/18] xen/arm64: flushtlb: Reduce scope of barrier for local TLB flush

2022-12-13 Thread Julien Grall
On 13/12/2022 09:11, Michal Orzel wrote: Hi Julien, Hi Michal, On 12/12/2022 10:55, Julien Grall wrote: From: Julien Grall Per D5-4929 in ARM DDI 0487H.a: "A DSB NSH is sufficient to ensure completion of TLB maintenance instructions that apply to a single PE. A DSB ISH is sufficient

Re: [PATCH v3 01/18] xen/arm64: flushtlb: Reduce scope of barrier for local TLB flush

2022-12-13 Thread Michal Orzel
Hi Julien, On 12/12/2022 10:55, Julien Grall wrote: > > > From: Julien Grall > > Per D5-4929 in ARM DDI 0487H.a: > "A DSB NSH is sufficient to ensure completion of TLB maintenance > instructions that apply to a single PE. A DSB ISH is sufficient to > ensure completion of TLB maintenance inst

[PATCH v3 01/18] xen/arm64: flushtlb: Reduce scope of barrier for local TLB flush

2022-12-12 Thread Julien Grall
From: Julien Grall Per D5-4929 in ARM DDI 0487H.a: "A DSB NSH is sufficient to ensure completion of TLB maintenance instructions that apply to a single PE. A DSB ISH is sufficient to ensure completion of TLB maintenance instructions that apply to PEs in the same Inner Shareable domain. " This