Re: [PATCH v2 15/19] arm64: entry: split bad stack entry

[PATCH v2 00/19] arm64: entry: migrate more code to C · Mark Rutland <mark.rutland@arm.com> · 2021-05-19
[PATCH v2 01/19] arm64: remove redundant local_daif_mask() in bad_mode() · Mark Rutland <mark.rutland@arm.com> · 2021-05-19
Re: [PATCH v2 01/19] arm64: remove redundant local_daif_mask() in bad_mode() · Joey Gouly <joey.gouly@arm.com> · 2021-05-21
[PATCH v2 02/19] arm64: entry: unmask IRQ+FIQ after EL0 handling · Mark Rutland <mark.rutland@arm.com> · 2021-05-19
Re: [PATCH v2 02/19] arm64: entry: unmask IRQ+FIQ after EL0 handling · Joey Gouly <joey.gouly@arm.com> · 2021-05-25
[PATCH v2 03/19] arm64: entry: convert SError handlers to C · Mark Rutland <mark.rutland@arm.com> · 2021-05-19
Re: [PATCH v2 03/19] arm64: entry: convert SError handlers to C · Joey Gouly <joey.gouly@arm.com> · 2021-05-25
[PATCH v2 04/19] arm64: entry: move arm64_preempt_schedule_irq to entry-common.c · Mark Rutland <mark.rutland@arm.com> · 2021-05-19
Re: [PATCH v2 04/19] arm64: entry: move arm64_preempt_schedule_irq to entry-common.c · Joey Gouly <joey.gouly@arm.com> · 2021-05-21
[PATCH v2 05/19] arm64: entry: move preempt logic to C · Mark Rutland <mark.rutland@arm.com> · 2021-05-19
Re: [PATCH v2 05/19] arm64: entry: move preempt logic to C · Joey Gouly <joey.gouly@arm.com> · 2021-05-25
[PATCH v2 06/19] arm64: entry: add a call_on_irq_stack helper · Mark Rutland <mark.rutland@arm.com> · 2021-05-19
Re: [PATCH v2 06/19] arm64: entry: add a call_on_irq_stack helper · Mark Rutland <mark.rutland@arm.com> · 2021-05-19
[PATCH v2 07/19] arm64: entry: convert IRQ+FIQ handlers to C · Mark Rutland <mark.rutland@arm.com> · 2021-05-19
Re: [PATCH v2 07/19] arm64: entry: convert IRQ+FIQ handlers to C · Joey Gouly <joey.gouly@arm.com> · 2021-05-21
Re: [PATCH v2 07/19] arm64: entry: convert IRQ+FIQ handlers to C · Mark Rutland <mark.rutland@arm.com> · 2021-05-21
[PATCH v2 09/19] arm64: entry: organise entry vectors consistently · Mark Rutland <mark.rutland@arm.com> · 2021-05-19
Re: [PATCH v2 09/19] arm64: entry: organise entry vectors consistently · Joey Gouly <joey.gouly@arm.com> · 2021-05-21
[PATCH v2 08/19] arm64: entry: organise entry handlers consistently · Mark Rutland <mark.rutland@arm.com> · 2021-05-19
Re: [PATCH v2 08/19] arm64: entry: organise entry handlers consistently · Joey Gouly <joey.gouly@arm.com> · 2021-05-21
[PATCH v2 10/19] arm64: entry: consolidate EL1 exception returns · Mark Rutland <mark.rutland@arm.com> · 2021-05-19
Re: [PATCH v2 10/19] arm64: entry: consolidate EL1 exception returns · Joey Gouly <joey.gouly@arm.com> · 2021-05-21
[PATCH v2 12/19] arm64: entry: improve bad_mode() · Mark Rutland <mark.rutland@arm.com> · 2021-05-19
Re: [PATCH v2 12/19] arm64: entry: improve bad_mode() · Joey Gouly <joey.gouly@arm.com> · 2021-05-21
Re: [PATCH v2 12/19] arm64: entry: improve bad_mode() · Mark Rutland <mark.rutland@arm.com> · 2021-05-21
[PATCH v2 11/19] arm64: entry: move bad_mode() to entry-common.c · Mark Rutland <mark.rutland@arm.com> · 2021-05-19
Re: [PATCH v2 11/19] arm64: entry: move bad_mode() to entry-common.c · Joey Gouly <joey.gouly@arm.com> · 2021-05-21
[PATCH v2 13/19] arm64: entry: template the entry asm functions · Mark Rutland <mark.rutland@arm.com> · 2021-05-19
Re: [PATCH v2 13/19] arm64: entry: template the entry asm functions · Joey Gouly <joey.gouly@arm.com> · 2021-05-21
[PATCH v2 14/19] arm64: entry: handle all vectors with C · Mark Rutland <mark.rutland@arm.com> · 2021-05-19
Re: [PATCH v2 14/19] arm64: entry: handle all vectors with C · Joey Gouly <joey.gouly@arm.com> · 2021-05-21
Re: [PATCH v2 14/19] arm64: entry: handle all vectors with C · Mark Rutland <mark.rutland@arm.com> · 2021-05-21
[PATCH v2 15/19] arm64: entry: split bad stack entry · Mark Rutland <mark.rutland@arm.com> · 2021-05-19
Re: [PATCH v2 15/19] arm64: entry: split bad stack entry · Joey Gouly <joey.gouly@arm.com> · 2021-05-25
[PATCH v2 16/19] arm64: entry: split SDEI entry · Mark Rutland <mark.rutland@arm.com> · 2021-05-19
Re: [PATCH v2 16/19] arm64: entry: split SDEI entry · Joey Gouly <joey.gouly@arm.com> · 2021-05-25
[PATCH v2 17/19] arm64: entry: make NMI entry/exit functions static · Mark Rutland <mark.rutland@arm.com> · 2021-05-19
Re: [PATCH v2 17/19] arm64: entry: make NMI entry/exit functions static · Joey Gouly <joey.gouly@arm.com> · 2021-05-21
[PATCH v2 18/19] arm64: entry: don't instrument entry code with KCOV · Mark Rutland <mark.rutland@arm.com> · 2021-05-19
[PATCH v2 19/19] arm64: idle: don't instrument idle code with KCOV · Mark Rutland <mark.rutland@arm.com> · 2021-05-19

From: Joey Gouly <joey.gouly@arm.com>
Date: 2021-05-25 11:27:59

On Wed, May 19, 2021 at 01:38:58PM +0100, Mark Rutland wrote:

We'd like to keep all the entry sequencing in entry-common.c, as this
will allow us to ensure this is all consistent, and free from any
unsound instrumentation.

Currently handle_bad_stack() performs the NMI entry sequence in traps.c.
Let's split the low-level entry sequence from the reporting, moving the
former to entry-common.c and keeping the latter in traps.c. To make it
clear that reporting function never returns, it is renamed to
panic_bad_stack().

Reviewed-by: Joey Gouly <joey.gouly@arm.com>

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