Re: [PATCH v3 3/4] arm64: mte: Enable async tag check fault

[PATCH v3 0/4] arm64: ARMv8.5-A: MTE: Add async mode support · Vincenzo Frascino <vincenzo.frascino@arm.com> · 2021-01-15
[PATCH v3 1/4] kasan, arm64: Add KASAN light mode · Vincenzo Frascino <vincenzo.frascino@arm.com> · 2021-01-15
Re: [PATCH v3 1/4] kasan, arm64: Add KASAN light mode · Mark Rutland <mark.rutland@arm.com> · 2021-01-15
Re: [PATCH v3 1/4] kasan, arm64: Add KASAN light mode · Vincenzo Frascino <vincenzo.frascino@arm.com> · 2021-01-16
Re: [PATCH v3 1/4] kasan, arm64: Add KASAN light mode · Andrey Konovalov <hidden> · 2021-01-16
Re: [PATCH v3 1/4] kasan, arm64: Add KASAN light mode · Mark Rutland <mark.rutland@arm.com> · 2021-01-18
Re: [PATCH v3 1/4] kasan, arm64: Add KASAN light mode · Andrey Konovalov <hidden> · 2021-01-15
Re: [PATCH v3 1/4] kasan, arm64: Add KASAN light mode · Vincenzo Frascino <vincenzo.frascino@arm.com> · 2021-01-16
Re: [PATCH v3 1/4] kasan, arm64: Add KASAN light mode · Andrey Konovalov <hidden> · 2021-01-16
Re: [PATCH v3 1/4] kasan, arm64: Add KASAN light mode · Vincenzo Frascino <vincenzo.frascino@arm.com> · 2021-01-16
[PATCH v3 2/4] arm64: mte: Add asynchronous mode support · Vincenzo Frascino <vincenzo.frascino@arm.com> · 2021-01-15
Re: [PATCH v3 2/4] arm64: mte: Add asynchronous mode support · Mark Rutland <mark.rutland@arm.com> · 2021-01-15
Re: [PATCH v3 2/4] arm64: mte: Add asynchronous mode support · Vincenzo Frascino <vincenzo.frascino@arm.com> · 2021-01-16
[PATCH v3 3/4] arm64: mte: Enable async tag check fault · Vincenzo Frascino <vincenzo.frascino@arm.com> · 2021-01-15
Re: [PATCH v3 3/4] arm64: mte: Enable async tag check fault · Mark Rutland <mark.rutland@arm.com> · 2021-01-15
Re: [PATCH v3 3/4] arm64: mte: Enable async tag check fault · Catalin Marinas <catalin.marinas@arm.com> · 2021-01-18
Re: [PATCH v3 3/4] arm64: mte: Enable async tag check fault · Vincenzo Frascino <vincenzo.frascino@arm.com> · 2021-01-18
Re: [PATCH v3 3/4] arm64: mte: Enable async tag check fault · Mark Rutland <mark.rutland@arm.com> · 2021-01-18
Re: [PATCH v3 3/4] arm64: mte: Enable async tag check fault · Vincenzo Frascino <vincenzo.frascino@arm.com> · 2021-01-18
Re: [PATCH v3 3/4] arm64: mte: Enable async tag check fault · Vincenzo Frascino <vincenzo.frascino@arm.com> · 2021-01-18
Re: [PATCH v3 3/4] arm64: mte: Enable async tag check fault · Vincenzo Frascino <vincenzo.frascino@arm.com> · 2021-01-18
[PATCH v3 4/4] arm64: mte: Optimize mte_assign_mem_tag_range() · Vincenzo Frascino <vincenzo.frascino@arm.com> · 2021-01-15
Re: [PATCH v3 4/4] arm64: mte: Optimize mte_assign_mem_tag_range() · Mark Rutland <mark.rutland@arm.com> · 2021-01-15
Re: [PATCH v3 4/4] arm64: mte: Optimize mte_assign_mem_tag_range() · Vincenzo Frascino <vincenzo.frascino@arm.com> · 2021-01-16
Re: [PATCH v3 4/4] arm64: mte: Optimize mte_assign_mem_tag_range() · Vincenzo Frascino <vincenzo.frascino@arm.com> · 2021-01-17
Re: [PATCH v3 4/4] arm64: mte: Optimize mte_assign_mem_tag_range() · Mark Rutland <mark.rutland@arm.com> · 2021-01-18
Re: [PATCH v3 4/4] arm64: mte: Optimize mte_assign_mem_tag_range() · Vincenzo Frascino <vincenzo.frascino@arm.com> · 2021-01-18

From: Vincenzo Frascino <vincenzo.frascino@arm.com>
Date: 2021-01-18 15:43:01
Also in: lkml

On 1/18/21 1:37 PM, Vincenzo Frascino wrote:

quoted

If a speculated load is allowed to update this reg, we'd probably need an
ISB+DSB (I don't think it does, something to check with the architects).

I will check this with the architects and let you know.

I spoke to the architects and no speculative load can update TFSR_EL1.

-- 
Regards,
Vincenzo

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