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From: Catalin Marinas <catalin.marinas@arm.com>
To: Steve Capper <steve.capper@arm.com>
Cc: crecklin@redhat.com, ard.biesheuvel@linaro.org, maz@kernel.org,
	bhsharma@redhat.com, will@kernel.org,
	linux-arm-kernel@lists.infradead.org
Subject: Re: [PATCH V5 06/12] arm64: mm: Introduce vabits_actual
Date: Wed, 7 Aug 2019 17:16:10 +0100	[thread overview]
Message-ID: <20190807161609.GD1766@arrakis.emea.arm.com> (raw)
In-Reply-To: <20190807155524.5112-7-steve.capper@arm.com>

On Wed, Aug 07, 2019 at 04:55:18PM +0100, Steve Capper wrote:
> In order to support 52-bit kernel addresses detectable at boot time, one
> needs to know the actual VA_BITS detected. A new variable vabits_actual
> is introduced in this commit and employed for the KVM hypervisor layout,
> KASAN, fault handling and phys-to/from-virt translation where there
> would normally be compile time constants.
> 
> In order to maintain performance in phys_to_virt, another variable
> physvirt_offset is introduced.
> 
> Signed-off-by: Steve Capper <steve.capper@arm.com>

Reviewed-by: Catalin Marinas <catalin.marinas@arm.com>

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  reply	other threads:[~2019-08-07 16:16 UTC|newest]

Thread overview: 38+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-08-07 15:55 [PATCH V5 00/12] 52-bit kernel + user VAs Steve Capper
2019-08-07 15:55 ` [PATCH V5 01/12] arm64: mm: Remove bit-masking optimisations for PAGE_OFFSET and VMEMMAP_START Steve Capper
2019-08-07 15:55 ` [PATCH V5 02/12] arm64: mm: Flip kernel VA space Steve Capper
2019-08-07 16:12   ` Catalin Marinas
2019-08-07 15:55 ` [PATCH V5 03/12] arm64: kasan: Switch to using KASAN_SHADOW_OFFSET Steve Capper
2019-08-07 16:12   ` Catalin Marinas
2019-08-14 15:20   ` [PATCH] arm64: fix CONFIG_KASAN_SW_TAGS && CONFIG_KASAN_INLINE (was: Re: [PATCH V5 03/12] arm64: kasan: Switch to using) KASAN_SHADOW_OFFSET Mark Rutland
2019-08-14 15:57     ` Will Deacon
2019-08-14 16:03       ` Mark Rutland
2019-08-14 17:53         ` Steve Capper
2019-08-15 12:09         ` Will Deacon
2019-08-15 12:21           ` [PATCH] arm64: fix CONFIG_KASAN_SW_TAGS && CONFIG_KASAN_INLINE Andrey Ryabinin
2019-08-15 12:22             ` Will Deacon
2019-08-20  6:02           ` [PATCH] arm64: fix CONFIG_KASAN_SW_TAGS && CONFIG_KASAN_INLINE (was: Re: [PATCH V5 03/12] arm64: kasan: Switch to using) KASAN_SHADOW_OFFSET Bhupesh Sharma
2019-08-14 16:07     ` Steve Capper
2019-08-14 16:14       ` Steve Capper
2019-08-07 15:55 ` [PATCH V5 04/12] arm64: dump: De-constify VA_START and KASAN_SHADOW_START Steve Capper
2019-08-07 15:55 ` [PATCH V5 05/12] arm64: mm: Introduce VA_BITS_MIN Steve Capper
2019-08-07 16:14   ` Catalin Marinas
2019-08-07 15:55 ` [PATCH V5 06/12] arm64: mm: Introduce vabits_actual Steve Capper
2019-08-07 16:16   ` Catalin Marinas [this message]
2019-08-07 15:55 ` [PATCH V5 07/12] arm64: mm: Logic to make offset_ttbr1 conditional Steve Capper
2019-08-07 15:55 ` [PATCH V5 08/12] arm64: mm: Separate out vmemmap Steve Capper
2019-08-07 15:55 ` [PATCH V5 09/12] arm64: mm: Modify calculation of VMEMMAP_SIZE Steve Capper
2019-08-07 15:55 ` [PATCH V5 10/12] arm64: mm: Introduce 52-bit Kernel VAs Steve Capper
2019-08-07 15:55 ` [PATCH V5 11/12] arm64: mm: Remove vabits_user Steve Capper
2019-08-07 16:17   ` Catalin Marinas
2019-08-07 15:55 ` [PATCH V5 12/12] docs: arm64: Add layout and 52-bit info to memory document Steve Capper
2019-08-09 16:47 ` [PATCH V5 00/12] 52-bit kernel + user VAs Will Deacon
2019-08-13 11:23   ` Steve Capper
2019-08-13 11:59     ` Will Deacon
2019-08-13 12:43   ` Geert Uytterhoeven
2019-08-13 13:10     ` Will Deacon
2019-08-13 13:36       ` Geert Uytterhoeven
2019-08-14  8:04         ` Bhupesh Sharma
2019-08-14  8:21           ` Will Deacon
2019-08-14 11:59             ` Bhupesh Sharma
2019-08-14 12:24               ` Will Deacon

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