Re: [PATCH v6 04/13] arm64/kvm: hide ptrauth from guests

[PATCH v6 00/13] ARMv8.3 pointer authentication userspace support · Kristina Martsenko <hidden> · 2018-12-07
[PATCH v6 01/13] arm64: add comments about EC exception levels · Kristina Martsenko <hidden> · 2018-12-07
Re: [PATCH v6 01/13] arm64: add comments about EC exception levels · Richard Henderson <richard.henderson@linaro.org> · 2018-12-09
[PATCH v6 02/13] arm64: add pointer authentication register bits · Kristina Martsenko <hidden> · 2018-12-07
Re: [PATCH v6 02/13] arm64: add pointer authentication register bits · Richard Henderson <richard.henderson@linaro.org> · 2018-12-09
Re: [PATCH v6 02/13] arm64: add pointer authentication register bits · Kristina Martsenko <hidden> · 2018-12-10
Re: [PATCH v6 02/13] arm64: add pointer authentication register bits · Will Deacon <hidden> · 2018-12-11
[PATCH v6 03/13] arm64/kvm: consistently handle host HCR_EL2 flags · Kristina Martsenko <hidden> · 2018-12-07
Re: [PATCH v6 03/13] arm64/kvm: consistently handle host HCR_EL2 flags · Marc Zyngier <hidden> · 2018-12-08
Re: [PATCH v6 03/13] arm64/kvm: consistently handle host HCR_EL2 flags · Richard Henderson <richard.henderson@linaro.org> · 2018-12-09
[PATCH v6 04/13] arm64/kvm: hide ptrauth from guests · Kristina Martsenko <hidden> · 2018-12-07
Re: [PATCH v6 04/13] arm64/kvm: hide ptrauth from guests · Marc Zyngier <hidden> · 2018-12-08
Re: [PATCH v6 04/13] arm64/kvm: hide ptrauth from guests · Richard Henderson <richard.henderson@linaro.org> · 2018-12-09
Re: [PATCH v6 04/13] arm64/kvm: hide ptrauth from guests · Kristina Martsenko <hidden> · 2018-12-10
Re: [PATCH v6 04/13] arm64/kvm: hide ptrauth from guests · Richard Henderson <richard.henderson@linaro.org> · 2018-12-10
Re: [PATCH v6 04/13] arm64/kvm: hide ptrauth from guests · Kristina Martsenko <hidden> · 2018-12-10
Re: [PATCH v6 04/13] arm64/kvm: hide ptrauth from guests · Peter Maydell <hidden> · 2018-12-19
[PATCH v6 05/13] arm64: Don't trap host pointer auth use to EL2 · Kristina Martsenko <hidden> · 2018-12-07
Re: [PATCH v6 05/13] arm64: Don't trap host pointer auth use to EL2 · Richard Henderson <richard.henderson@linaro.org> · 2018-12-09
[PATCH v6 06/13] arm64/cpufeature: detect pointer authentication · Kristina Martsenko <hidden> · 2018-12-07
Re: [PATCH v6 06/13] arm64/cpufeature: detect pointer authentication · Richard Henderson <richard.henderson@linaro.org> · 2018-12-09
[PATCH v6 07/13] arm64: add basic pointer authentication support · Kristina Martsenko <hidden> · 2018-12-07
Re: [PATCH v6 07/13] arm64: add basic pointer authentication support · Richard Henderson <richard.henderson@linaro.org> · 2018-12-09
Re: [PATCH v6 07/13] arm64: add basic pointer authentication support · Pavel Machek <hidden> · 2019-01-03
Re: [PATCH v6 07/13] arm64: add basic pointer authentication support · Marc Zyngier <hidden> · 2019-01-04
Re: [PATCH v6 07/13] arm64: add basic pointer authentication support · Pavel Machek <hidden> · 2019-01-04
Re: [PATCH v6 07/13] arm64: add basic pointer authentication support · Mark Rutland <mark.rutland@arm.com> · 2019-01-04
[PATCH v6 08/13] arm64: expose user PAC bit positions via ptrace · Kristina Martsenko <hidden> · 2018-12-07
Re: [PATCH v6 08/13] arm64: expose user PAC bit positions via ptrace · Richard Henderson <richard.henderson@linaro.org> · 2018-12-09
Re: [PATCH v6 08/13] arm64: expose user PAC bit positions via ptrace · Richard Henderson <richard.henderson@linaro.org> · 2018-12-09
Re: [PATCH v6 08/13] arm64: expose user PAC bit positions via ptrace · Catalin Marinas <catalin.marinas@arm.com> · 2018-12-10
Re: [PATCH v6 08/13] arm64: expose user PAC bit positions via ptrace · Richard Henderson <richard.henderson@linaro.org> · 2018-12-10
Re: [PATCH v6 08/13] arm64: expose user PAC bit positions via ptrace · Will Deacon <hidden> · 2018-12-10
Re: [PATCH v6 08/13] arm64: expose user PAC bit positions via ptrace · Catalin Marinas <catalin.marinas@arm.com> · 2018-12-10
[PATCH v6 09/13] arm64: perf: strip PAC when unwinding userspace · Kristina Martsenko <hidden> · 2018-12-07
[PATCH v6 10/13] arm64: add prctl control for resetting ptrauth keys · Kristina Martsenko <hidden> · 2018-12-07
Re: [PATCH v6 10/13] arm64: add prctl control for resetting ptrauth keys · Dave Martin <Dave.Martin@arm.com> · 2018-12-12
[PATCH v6 11/13] arm64: add ptrace regsets for ptrauth key management · Kristina Martsenko <hidden> · 2018-12-07
Re: [PATCH v6 11/13] arm64: add ptrace regsets for ptrauth key management · Dave Martin <Dave.Martin@arm.com> · 2018-12-12
[PATCH v6 13/13] arm64: docs: document pointer authentication · Kristina Martsenko <hidden> · 2018-12-07
[PATCH v6 12/13] arm64: enable pointer authentication · Kristina Martsenko <hidden> · 2018-12-07
Re: [PATCH v6 00/13] ARMv8.3 pointer authentication userspace support · Will Deacon <hidden> · 2018-12-12
Re: [PATCH v6 00/13] ARMv8.3 pointer authentication userspace support · Will Deacon <hidden> · 2018-12-13

From: Richard Henderson <richard.henderson@linaro.org>
Date: 2018-12-10 20:22:08
Also in: kvmarm, lkml

On 12/10/18 2:12 PM, Kristina Martsenko wrote:

The plan was to disable trapping, yes. However, after that thread there
was a retrospective change applied to the architecture, such that the
XPACLRI (and XPACD/XPACI) instructions are no longer trapped by
HCR_EL2.API. (The public documentation on this has not been updated
yet.) This means that no HINT-space instructions should trap anymore.

Ah, thanks for the update.  I'll update my QEMU patch set.

quoted

It seems like the header comment here, and

Sorry, which header comment?

Sorry, the patch commit message.


r~

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