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Re: [PATCH v4 02/14] xen/arm64: flushtlb: Implement the TLBI repeat workaround for TLB flush by VA
- To: Julien Grall <julien@xxxxxxx>
- From: Luca Fancellu <Luca.Fancellu@xxxxxxx>
- Date: Fri, 13 Jan 2023 17:56:14 +0000
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- Cc: Xen-devel <xen-devel@xxxxxxxxxxxxxxxxxxxx>, Julien Grall <jgrall@xxxxxxxxxx>, Stefano Stabellini <sstabellini@xxxxxxxxxx>, Bertrand Marquis <Bertrand.Marquis@xxxxxxx>, Volodymyr Babchuk <Volodymyr_Babchuk@xxxxxxxx>, Michal Orzel <michal.orzel@xxxxxxx>
- Delivery-date: Fri, 13 Jan 2023 17:56:35 +0000
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- Thread-topic: [PATCH v4 02/14] xen/arm64: flushtlb: Implement the TLBI repeat workaround for TLB flush by VA
> On 13 Jan 2023, at 10:11, Julien Grall <julien@xxxxxxx> wrote:
>
> From: Julien Grall <jgrall@xxxxxxxxxx>
>
> Looking at the Neoverse N1 errata document, it is not clear to me
> why the TLBI repeat workaround is not applied for TLB flush by VA.
>
> The TBL flush by VA helpers are used in flush_xen_tlb_range_va_local()
> and flush_xen_tlb_range_va(). So if the range size if a fixed size smaller
NIT: is a fixed size
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