From: Marc Zyngier <marc.zyngier@arm.com>
To: Russell King <rmk+kernel@armlinux.org.uk>
Cc: Florian Fainelli <f.fainelli@gmail.com>,
linux-arm-kernel@lists.infradead.org,
kvmarm@lists.cs.columbia.edu
Subject: Re: [PATCH v5 04/15] ARM: bugs: add support for per-processor bug checking
Date: Tue, 29 May 2018 17:50:00 +0100 [thread overview]
Message-ID: <86wovm9zk7.wl-marc.zyngier@arm.com> (raw)
In-Reply-To: <E1fNg17-00055G-7W@rmk-PC.armlinux.org.uk>
On Tue, 29 May 2018 15:54:29 +0100,
Russell King wrote:
>
> Add support for per-processor bug checking - each processor function
> descriptor gains a function pointer for this check, which must not be
> an __init function. If non-NULL, this will be called whenever a CPU
> enters the kernel via which ever path (boot CPU, secondary CPU startup,
> CPU resuming, etc.)
>
> This allows processor specific bug checks to validate that workaround
> bits are properly enabled by firmware via all entry paths to the kernel.
>
> Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
> Boot-tested-by: Tony Lindgren <tony@atomide.com>
> Reviewed-by: Tony Lindgren <tony@atomide.com>
Acked-by: Marc Zyngier <marc.zyngier@arm.com>
M.
--
Jazz is not dead, it just smell funny.
WARNING: multiple messages have this Message-ID (diff)
From: marc.zyngier@arm.com (Marc Zyngier)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH v5 04/15] ARM: bugs: add support for per-processor bug checking
Date: Tue, 29 May 2018 17:50:00 +0100 [thread overview]
Message-ID: <86wovm9zk7.wl-marc.zyngier@arm.com> (raw)
In-Reply-To: <E1fNg17-00055G-7W@rmk-PC.armlinux.org.uk>
On Tue, 29 May 2018 15:54:29 +0100,
Russell King wrote:
>
> Add support for per-processor bug checking - each processor function
> descriptor gains a function pointer for this check, which must not be
> an __init function. If non-NULL, this will be called whenever a CPU
> enters the kernel via which ever path (boot CPU, secondary CPU startup,
> CPU resuming, etc.)
>
> This allows processor specific bug checks to validate that workaround
> bits are properly enabled by firmware via all entry paths to the kernel.
>
> Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
> Boot-tested-by: Tony Lindgren <tony@atomide.com>
> Reviewed-by: Tony Lindgren <tony@atomide.com>
Acked-by: Marc Zyngier <marc.zyngier@arm.com>
M.
--
Jazz is not dead, it just smell funny.
next prev parent reply other threads:[~2018-05-29 16:39 UTC|newest]
Thread overview: 62+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-05-29 14:53 [PATCH v5 00/15] ARM Spectre variant 2 fixes Russell King - ARM Linux
2018-05-29 14:53 ` Russell King - ARM Linux
2018-05-29 14:54 ` [PATCH v5 01/15] ARM: add more CPU part numbers for Cortex and Brahma B15 CPUs Russell King
2018-05-29 14:54 ` Russell King
2018-05-29 16:47 ` Marc Zyngier
2018-05-29 16:47 ` Marc Zyngier
2018-05-29 14:54 ` [PATCH v5 02/15] ARM: bugs: prepare processor bug infrastructure Russell King
2018-05-29 14:54 ` Russell King
2018-05-29 16:48 ` Marc Zyngier
2018-05-29 16:48 ` Marc Zyngier
2018-05-29 14:54 ` [PATCH v5 03/15] ARM: bugs: hook processor bug checking into SMP and suspend paths Russell King
2018-05-29 14:54 ` Russell King
2018-05-29 16:48 ` Marc Zyngier
2018-05-29 16:48 ` Marc Zyngier
2018-05-29 14:54 ` [PATCH v5 04/15] ARM: bugs: add support for per-processor bug checking Russell King
2018-05-29 14:54 ` Russell King
2018-05-29 16:50 ` Marc Zyngier [this message]
2018-05-29 16:50 ` Marc Zyngier
2018-05-29 14:54 ` [PATCH v5 05/15] ARM: spectre: add Kconfig symbol for CPUs vulnerable to Spectre Russell King
2018-05-29 14:54 ` Russell King
2018-05-29 16:50 ` Marc Zyngier
2018-05-29 16:50 ` Marc Zyngier
2018-05-29 14:54 ` [PATCH v5 06/15] ARM: spectre-v2: harden branch predictor on context switches Russell King
2018-05-29 14:54 ` Russell King
2018-05-29 16:52 ` Marc Zyngier
2018-05-29 16:52 ` Marc Zyngier
2018-05-29 14:54 ` [PATCH v5 07/15] ARM: spectre-v2: add Cortex A8 and A15 validation of the IBE bit Russell King
2018-05-29 14:54 ` Russell King
2018-05-29 14:54 ` [PATCH v5 08/15] ARM: spectre-v2: harden user aborts in kernel space Russell King
2018-05-29 14:54 ` Russell King
2018-05-29 14:54 ` [PATCH v5 09/15] ARM: spectre-v2: add firmware based hardening Russell King
2018-05-29 14:54 ` Russell King
2018-05-29 16:59 ` Marc Zyngier
2018-05-29 16:59 ` Marc Zyngier
2018-05-29 14:55 ` [PATCH v5 10/15] ARM: spectre-v2: warn about incorrect context switching functions Russell King
2018-05-29 14:55 ` Russell King
2018-05-29 17:02 ` Marc Zyngier
2018-05-29 17:02 ` Marc Zyngier
2018-05-31 9:49 ` Russell King - ARM Linux
2018-05-31 9:49 ` Russell King - ARM Linux
2018-05-31 10:07 ` Marc Zyngier
2018-05-31 10:07 ` Marc Zyngier
2018-05-31 10:11 ` Russell King - ARM Linux
2018-05-31 10:11 ` Russell King - ARM Linux
2018-05-29 14:55 ` [PATCH v5 11/15] ARM: KVM: invalidate BTB on guest exit for Cortex-A12/A17 Russell King
2018-05-29 14:55 ` Russell King
2018-05-29 14:55 ` [PATCH v5 12/15] ARM: KVM: invalidate icache on guest exit for Cortex-A15 Russell King
2018-05-29 14:55 ` Russell King
2018-05-29 14:55 ` [PATCH v5 13/15] ARM: spectre-v2: KVM: invalidate icache on guest exit for Brahma B15 Russell King
2018-05-29 14:55 ` Russell King
2018-05-29 17:03 ` Marc Zyngier
2018-05-29 17:03 ` Marc Zyngier
2018-05-29 14:55 ` [PATCH v5 14/15] ARM: KVM: Add SMCCC_ARCH_WORKAROUND_1 fast handling Russell King
2018-05-29 14:55 ` Russell King
2018-05-29 17:03 ` Marc Zyngier
2018-05-29 17:03 ` Marc Zyngier
2018-05-29 14:55 ` [PATCH v5 15/15] ARM: KVM: report support for SMCCC_ARCH_WORKAROUND_1 Russell King
2018-05-29 14:55 ` Russell King
2018-05-29 17:04 ` Marc Zyngier
2018-05-29 17:04 ` Marc Zyngier
2018-05-29 15:02 ` [PATCH v5 00/15] ARM Spectre variant 2 fixes Russell King - ARM Linux
2018-05-29 15:02 ` Russell King - ARM Linux
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