From: Catalin Marinas <catalin.marinas@arm.com>
To: Pasha Tatashin <pasha.tatashin@soleen.com>
Cc: jmorris@namei.org, sashal@kernel.org, ebiederm@xmission.com,
kexec@lists.infradead.org, linux-kernel@vger.kernel.org,
corbet@lwn.net, will@kernel.org,
linux-arm-kernel@lists.infradead.org, maz@kernel.org,
james.morse@arm.com, vladimir.murzin@arm.com,
matthias.bgg@gmail.com, linux-mm@kvack.org, mark.rutland@arm.com,
steve.capper@arm.com, rfontana@redhat.com, tglx@linutronix.de,
selindag@gmail.com, tyhicks@linux.microsoft.com,
kernelfans@gmail.com, akpm@linux-foundation.org,
madvenka@linux.microsoft.com
Subject: Re: [PATCH v17 00/15] arm64: MMU enabled kexec relocation
Date: Wed, 29 Sep 2021 18:21:42 +0100 [thread overview]
Message-ID: <YVSgplQLvPg1490d@arm.com> (raw)
In-Reply-To: <20210916231325.125533-1-pasha.tatashin@soleen.com>
On Thu, Sep 16, 2021 at 07:13:10PM -0400, Pasha Tatashin wrote:
> Pasha Tatashin (15):
> arm64: kernel: add helper for booted at EL2 and not VHE
> arm64: trans_pgd: hibernate: Add trans_pgd_copy_el2_vectors
> arm64: hibernate: abstract ttrb0 setup function
> arm64: kexec: flush image and lists during kexec load time
> arm64: kexec: skip relocation code for inplace kexec
> arm64: kexec: Use dcache ops macros instead of open-coding
> arm64: kexec: pass kimage as the only argument to relocation function
> arm64: kexec: configure EL2 vectors for kexec
> arm64: kexec: relocate in EL1 mode
> arm64: kexec: use ld script for relocation function
> arm64: kexec: install a copy of the linear-map
> arm64: kexec: keep MMU enabled during kexec relocation
> arm64: kexec: remove the pre-kexec PoC maintenance
> arm64: kexec: remove cpu-reset.h
> arm64: trans_pgd: remove trans_pgd_map_page()
FWIW, I'm fine with this series. I think the only concern raised by
James and not addressed is the possibility of the failure of the memory
allocation for copying the page tables during kexec. If anyone will
complain in the future, we can look into adding a fallback mechanism to
do the relocation with the MMU off.
Acked-by: Catalin Marinas <catalin.marinas@arm.com>
WARNING: multiple messages have this Message-ID (diff)
From: Catalin Marinas <catalin.marinas@arm.com>
To: Pasha Tatashin <pasha.tatashin@soleen.com>
Cc: jmorris@namei.org, sashal@kernel.org, ebiederm@xmission.com,
kexec@lists.infradead.org, linux-kernel@vger.kernel.org,
corbet@lwn.net, will@kernel.org,
linux-arm-kernel@lists.infradead.org, maz@kernel.org,
james.morse@arm.com, vladimir.murzin@arm.com,
matthias.bgg@gmail.com, linux-mm@kvack.org, mark.rutland@arm.com,
steve.capper@arm.com, rfontana@redhat.com, tglx@linutronix.de,
selindag@gmail.com, tyhicks@linux.microsoft.com,
kernelfans@gmail.com, akpm@linux-foundation.org,
madvenka@linux.microsoft.com
Subject: Re: [PATCH v17 00/15] arm64: MMU enabled kexec relocation
Date: Wed, 29 Sep 2021 18:21:42 +0100 [thread overview]
Message-ID: <YVSgplQLvPg1490d@arm.com> (raw)
In-Reply-To: <20210916231325.125533-1-pasha.tatashin@soleen.com>
On Thu, Sep 16, 2021 at 07:13:10PM -0400, Pasha Tatashin wrote:
> Pasha Tatashin (15):
> arm64: kernel: add helper for booted at EL2 and not VHE
> arm64: trans_pgd: hibernate: Add trans_pgd_copy_el2_vectors
> arm64: hibernate: abstract ttrb0 setup function
> arm64: kexec: flush image and lists during kexec load time
> arm64: kexec: skip relocation code for inplace kexec
> arm64: kexec: Use dcache ops macros instead of open-coding
> arm64: kexec: pass kimage as the only argument to relocation function
> arm64: kexec: configure EL2 vectors for kexec
> arm64: kexec: relocate in EL1 mode
> arm64: kexec: use ld script for relocation function
> arm64: kexec: install a copy of the linear-map
> arm64: kexec: keep MMU enabled during kexec relocation
> arm64: kexec: remove the pre-kexec PoC maintenance
> arm64: kexec: remove cpu-reset.h
> arm64: trans_pgd: remove trans_pgd_map_page()
FWIW, I'm fine with this series. I think the only concern raised by
James and not addressed is the possibility of the failure of the memory
allocation for copying the page tables during kexec. If anyone will
complain in the future, we can look into adding a fallback mechanism to
do the relocation with the MMU off.
Acked-by: Catalin Marinas <catalin.marinas@arm.com>
_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
WARNING: multiple messages have this Message-ID (diff)
From: Catalin Marinas <catalin.marinas@arm.com>
To: Pasha Tatashin <pasha.tatashin@soleen.com>
Cc: jmorris@namei.org, sashal@kernel.org, ebiederm@xmission.com,
kexec@lists.infradead.org, linux-kernel@vger.kernel.org,
corbet@lwn.net, will@kernel.org,
linux-arm-kernel@lists.infradead.org, maz@kernel.org,
james.morse@arm.com, vladimir.murzin@arm.com,
matthias.bgg@gmail.com, linux-mm@kvack.org, mark.rutland@arm.com,
steve.capper@arm.com, rfontana@redhat.com, tglx@linutronix.de,
selindag@gmail.com, tyhicks@linux.microsoft.com,
kernelfans@gmail.com, akpm@linux-foundation.org,
madvenka@linux.microsoft.com
Subject: Re: [PATCH v17 00/15] arm64: MMU enabled kexec relocation
Date: Wed, 29 Sep 2021 18:21:42 +0100 [thread overview]
Message-ID: <YVSgplQLvPg1490d@arm.com> (raw)
In-Reply-To: <20210916231325.125533-1-pasha.tatashin@soleen.com>
On Thu, Sep 16, 2021 at 07:13:10PM -0400, Pasha Tatashin wrote:
> Pasha Tatashin (15):
> arm64: kernel: add helper for booted at EL2 and not VHE
> arm64: trans_pgd: hibernate: Add trans_pgd_copy_el2_vectors
> arm64: hibernate: abstract ttrb0 setup function
> arm64: kexec: flush image and lists during kexec load time
> arm64: kexec: skip relocation code for inplace kexec
> arm64: kexec: Use dcache ops macros instead of open-coding
> arm64: kexec: pass kimage as the only argument to relocation function
> arm64: kexec: configure EL2 vectors for kexec
> arm64: kexec: relocate in EL1 mode
> arm64: kexec: use ld script for relocation function
> arm64: kexec: install a copy of the linear-map
> arm64: kexec: keep MMU enabled during kexec relocation
> arm64: kexec: remove the pre-kexec PoC maintenance
> arm64: kexec: remove cpu-reset.h
> arm64: trans_pgd: remove trans_pgd_map_page()
FWIW, I'm fine with this series. I think the only concern raised by
James and not addressed is the possibility of the failure of the memory
allocation for copying the page tables during kexec. If anyone will
complain in the future, we can look into adding a fallback mechanism to
do the relocation with the MMU off.
Acked-by: Catalin Marinas <catalin.marinas@arm.com>
_______________________________________________
kexec mailing list
kexec@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/kexec
next prev parent reply other threads:[~2021-09-29 17:21 UTC|newest]
Thread overview: 101+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-09-16 23:13 [PATCH v17 00/15] arm64: MMU enabled kexec relocation Pasha Tatashin
2021-09-16 23:13 ` Pasha Tatashin
2021-09-16 23:13 ` Pasha Tatashin
2021-09-16 23:13 ` [PATCH v17 01/15] arm64: kernel: add helper for booted at EL2 and not VHE Pasha Tatashin
2021-09-16 23:13 ` Pasha Tatashin
2021-09-16 23:13 ` Pasha Tatashin
2021-09-16 23:13 ` [PATCH v17 02/15] arm64: trans_pgd: hibernate: Add trans_pgd_copy_el2_vectors Pasha Tatashin
2021-09-16 23:13 ` Pasha Tatashin
2021-09-16 23:13 ` Pasha Tatashin
2021-09-16 23:13 ` [PATCH v17 03/15] arm64: hibernate: abstract ttrb0 setup function Pasha Tatashin
2021-09-16 23:13 ` Pasha Tatashin
2021-09-16 23:13 ` Pasha Tatashin
2021-09-16 23:13 ` [PATCH v17 04/15] arm64: kexec: flush image and lists during kexec load time Pasha Tatashin
2021-09-16 23:13 ` Pasha Tatashin
2021-09-16 23:13 ` Pasha Tatashin
2021-09-16 23:13 ` [PATCH v17 05/15] arm64: kexec: skip relocation code for inplace kexec Pasha Tatashin
2021-09-16 23:13 ` Pasha Tatashin
2021-09-16 23:13 ` Pasha Tatashin
2021-09-29 12:13 ` Will Deacon
2021-09-29 12:13 ` Will Deacon
2021-09-29 12:13 ` Will Deacon
2021-09-30 2:44 ` Pasha Tatashin
2021-09-30 2:44 ` Pasha Tatashin
2021-09-30 2:44 ` Pasha Tatashin
2021-09-30 2:44 ` Pasha Tatashin
2021-09-16 23:13 ` [PATCH v17 06/15] arm64: kexec: Use dcache ops macros instead of open-coding Pasha Tatashin
2021-09-16 23:13 ` Pasha Tatashin
2021-09-16 23:13 ` Pasha Tatashin
2021-09-16 23:13 ` [PATCH v17 07/15] arm64: kexec: pass kimage as the only argument to relocation function Pasha Tatashin
2021-09-16 23:13 ` Pasha Tatashin
2021-09-16 23:13 ` Pasha Tatashin
2021-09-16 23:13 ` [PATCH v17 08/15] arm64: kexec: configure EL2 vectors for kexec Pasha Tatashin
2021-09-16 23:13 ` Pasha Tatashin
2021-09-16 23:13 ` Pasha Tatashin
2021-09-29 12:35 ` Will Deacon
2021-09-29 12:35 ` Will Deacon
2021-09-29 12:35 ` Will Deacon
2021-09-30 3:54 ` Pasha Tatashin
2021-09-30 3:54 ` Pasha Tatashin
2021-09-30 3:54 ` Pasha Tatashin
2021-09-30 3:54 ` Pasha Tatashin
2021-09-30 8:16 ` Will Deacon
2021-09-30 8:16 ` Will Deacon
2021-09-30 8:16 ` Will Deacon
2021-09-30 11:59 ` Pasha Tatashin
2021-09-30 11:59 ` Pasha Tatashin
2021-09-30 11:59 ` Pasha Tatashin
2021-09-30 11:59 ` Pasha Tatashin
2021-09-16 23:13 ` [PATCH v17 09/15] arm64: kexec: relocate in EL1 mode Pasha Tatashin
2021-09-16 23:13 ` Pasha Tatashin
2021-09-16 23:13 ` Pasha Tatashin
2021-09-16 23:13 ` [PATCH v17 10/15] arm64: kexec: use ld script for relocation function Pasha Tatashin
2021-09-16 23:13 ` Pasha Tatashin
2021-09-16 23:13 ` Pasha Tatashin
2021-09-29 12:45 ` Will Deacon
2021-09-29 12:45 ` Will Deacon
2021-09-29 12:45 ` Will Deacon
2021-09-30 3:57 ` Pasha Tatashin
2021-09-30 3:57 ` Pasha Tatashin
2021-09-30 3:57 ` Pasha Tatashin
2021-09-30 3:57 ` Pasha Tatashin
2021-09-30 4:08 ` Pasha Tatashin
2021-09-30 4:08 ` Pasha Tatashin
2021-09-30 4:08 ` Pasha Tatashin
2021-09-30 4:08 ` Pasha Tatashin
2021-09-16 23:13 ` [PATCH v17 11/15] arm64: kexec: install a copy of the linear-map Pasha Tatashin
2021-09-16 23:13 ` Pasha Tatashin
2021-09-16 23:13 ` Pasha Tatashin
2021-09-16 23:13 ` [PATCH v17 12/15] arm64: kexec: keep MMU enabled during kexec relocation Pasha Tatashin
2021-09-16 23:13 ` Pasha Tatashin
2021-09-16 23:13 ` Pasha Tatashin
2021-09-16 23:13 ` [PATCH v17 13/15] arm64: kexec: remove the pre-kexec PoC maintenance Pasha Tatashin
2021-09-16 23:13 ` Pasha Tatashin
2021-09-16 23:13 ` Pasha Tatashin
2021-09-16 23:13 ` [PATCH v17 14/15] arm64: kexec: remove cpu-reset.h Pasha Tatashin
2021-09-16 23:13 ` Pasha Tatashin
2021-09-16 23:13 ` Pasha Tatashin
2021-09-16 23:13 ` [PATCH v17 15/15] arm64: trans_pgd: remove trans_pgd_map_page() Pasha Tatashin
2021-09-16 23:13 ` Pasha Tatashin
2021-09-16 23:13 ` Pasha Tatashin
2021-09-29 16:43 ` Catalin Marinas
2021-09-29 16:43 ` Catalin Marinas
2021-09-29 16:43 ` Catalin Marinas
2021-09-30 4:12 ` Pasha Tatashin
2021-09-30 4:12 ` Pasha Tatashin
2021-09-30 4:12 ` Pasha Tatashin
2021-09-30 4:12 ` Pasha Tatashin
2021-09-29 12:49 ` [PATCH v17 00/15] arm64: MMU enabled kexec relocation Will Deacon
2021-09-29 12:49 ` Will Deacon
2021-09-29 12:49 ` Will Deacon
2021-09-30 4:13 ` Pasha Tatashin
2021-09-30 4:13 ` Pasha Tatashin
2021-09-30 4:13 ` Pasha Tatashin
2021-09-30 4:13 ` Pasha Tatashin
2021-09-29 17:21 ` Catalin Marinas [this message]
2021-09-29 17:21 ` Catalin Marinas
2021-09-29 17:21 ` Catalin Marinas
2021-09-30 4:13 ` Pasha Tatashin
2021-09-30 4:13 ` Pasha Tatashin
2021-09-30 4:13 ` Pasha Tatashin
2021-09-30 4:13 ` Pasha Tatashin
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