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From: Thiago Jung Bauermann <bauerman@linux.ibm.com>
To: Hari Bathini <hbathini@linux.ibm.com>
Cc: Michael Ellerman <mpe@ellerman.id.au>,
	Andrew Morton <akpm@linux-foundation.org>,
	Pingfan Liu <piliu@redhat.com>,
	Kexec-ml <kexec@lists.infradead.org>,
	Mimi Zohar <zohar@linux.ibm.com>,
	Nayna Jain <nayna@linux.ibm.com>, Petr Tesarik <ptesarik@suse.cz>,
	Mahesh J Salgaonkar <mahesh@linux.ibm.com>,
	Sourabh Jain <sourabhjain@linux.ibm.com>,
	lkml <linux-kernel@vger.kernel.org>,
	linuxppc-dev <linuxppc-dev@ozlabs.org>,
	Eric Biederman <ebiederm@xmission.com>,
	Dave Young <dyoung@redhat.com>, Vivek Goyal <vgoyal@redhat.com>
Subject: Re: [PATCH v3 08/12] ppc64/kexec_file: setup the stack for purgatory
Date: Wed, 15 Jul 2020 21:35:07 -0300	[thread overview]
Message-ID: <87zh808fgk.fsf@morokweng.localdomain> (raw)
In-Reply-To: <159466095278.24747.9161591016931052627.stgit@hbathini.in.ibm.com>


Hari Bathini <hbathini@linux.ibm.com> writes:

> To avoid any weird errors, the purgatory should run with its own
> stack. Set one up by adding the stack buffer to .data section of
> the purgatory. Also, setup opal base & entry values in r8 & r9
> registers to help early OPAL debugging.
>
> Signed-off-by: Hari Bathini <hbathini@linux.ibm.com>
> Tested-by: Pingfan Liu <piliu@redhat.com>

Reviewed-by: Thiago Jung Bauermann <bauerman@linux.ibm.com>

> ---
>
> v2 -> v3:
> * Unchanged. Added Tested-by tag from Pingfan.
>
> v1 -> v2:
> * Setting up opal base & entry values in r8 & r9 for early OPAL debug.
>
>
>  arch/powerpc/include/asm/kexec.h       |    4 ++++
>  arch/powerpc/kexec/file_load_64.c      |   29 +++++++++++++++++++++++++++++
>  arch/powerpc/purgatory/trampoline_64.S |   32 ++++++++++++++++++++++++++++++++
>  3 files changed, 65 insertions(+)
>

-- 
Thiago Jung Bauermann
IBM Linux Technology Center

WARNING: multiple messages have this Message-ID (diff)
From: Thiago Jung Bauermann <bauerman@linux.ibm.com>
To: Hari Bathini <hbathini@linux.ibm.com>
Cc: Pingfan Liu <piliu@redhat.com>, Nayna Jain <nayna@linux.ibm.com>,
	Kexec-ml <kexec@lists.infradead.org>,
	Mahesh J Salgaonkar <mahesh@linux.ibm.com>,
	Mimi Zohar <zohar@linux.ibm.com>,
	lkml <linux-kernel@vger.kernel.org>,
	linuxppc-dev <linuxppc-dev@ozlabs.org>,
	Sourabh Jain <sourabhjain@linux.ibm.com>,
	Petr Tesarik <ptesarik@suse.cz>,
	Andrew Morton <akpm@linux-foundation.org>,
	Dave Young <dyoung@redhat.com>, Vivek Goyal <vgoyal@redhat.com>,
	Eric Biederman <ebiederm@xmission.com>
Subject: Re: [PATCH v3 08/12] ppc64/kexec_file: setup the stack for purgatory
Date: Wed, 15 Jul 2020 21:35:07 -0300	[thread overview]
Message-ID: <87zh808fgk.fsf@morokweng.localdomain> (raw)
In-Reply-To: <159466095278.24747.9161591016931052627.stgit@hbathini.in.ibm.com>


Hari Bathini <hbathini@linux.ibm.com> writes:

> To avoid any weird errors, the purgatory should run with its own
> stack. Set one up by adding the stack buffer to .data section of
> the purgatory. Also, setup opal base & entry values in r8 & r9
> registers to help early OPAL debugging.
>
> Signed-off-by: Hari Bathini <hbathini@linux.ibm.com>
> Tested-by: Pingfan Liu <piliu@redhat.com>

Reviewed-by: Thiago Jung Bauermann <bauerman@linux.ibm.com>

> ---
>
> v2 -> v3:
> * Unchanged. Added Tested-by tag from Pingfan.
>
> v1 -> v2:
> * Setting up opal base & entry values in r8 & r9 for early OPAL debug.
>
>
>  arch/powerpc/include/asm/kexec.h       |    4 ++++
>  arch/powerpc/kexec/file_load_64.c      |   29 +++++++++++++++++++++++++++++
>  arch/powerpc/purgatory/trampoline_64.S |   32 ++++++++++++++++++++++++++++++++
>  3 files changed, 65 insertions(+)
>

-- 
Thiago Jung Bauermann
IBM Linux Technology Center

WARNING: multiple messages have this Message-ID (diff)
From: Thiago Jung Bauermann <bauerman@linux.ibm.com>
To: Hari Bathini <hbathini@linux.ibm.com>
Cc: Pingfan Liu <piliu@redhat.com>,
	Michael Ellerman <mpe@ellerman.id.au>,
	Nayna Jain <nayna@linux.ibm.com>,
	Kexec-ml <kexec@lists.infradead.org>,
	Mahesh J Salgaonkar <mahesh@linux.ibm.com>,
	Mimi Zohar <zohar@linux.ibm.com>,
	lkml <linux-kernel@vger.kernel.org>,
	linuxppc-dev <linuxppc-dev@ozlabs.org>,
	Sourabh Jain <sourabhjain@linux.ibm.com>,
	Petr Tesarik <ptesarik@suse.cz>,
	Andrew Morton <akpm@linux-foundation.org>,
	Dave Young <dyoung@redhat.com>, Vivek Goyal <vgoyal@redhat.com>,
	Eric Biederman <ebiederm@xmission.com>
Subject: Re: [PATCH v3 08/12] ppc64/kexec_file: setup the stack for purgatory
Date: Wed, 15 Jul 2020 21:35:07 -0300	[thread overview]
Message-ID: <87zh808fgk.fsf@morokweng.localdomain> (raw)
In-Reply-To: <159466095278.24747.9161591016931052627.stgit@hbathini.in.ibm.com>


Hari Bathini <hbathini@linux.ibm.com> writes:

> To avoid any weird errors, the purgatory should run with its own
> stack. Set one up by adding the stack buffer to .data section of
> the purgatory. Also, setup opal base & entry values in r8 & r9
> registers to help early OPAL debugging.
>
> Signed-off-by: Hari Bathini <hbathini@linux.ibm.com>
> Tested-by: Pingfan Liu <piliu@redhat.com>

Reviewed-by: Thiago Jung Bauermann <bauerman@linux.ibm.com>

> ---
>
> v2 -> v3:
> * Unchanged. Added Tested-by tag from Pingfan.
>
> v1 -> v2:
> * Setting up opal base & entry values in r8 & r9 for early OPAL debug.
>
>
>  arch/powerpc/include/asm/kexec.h       |    4 ++++
>  arch/powerpc/kexec/file_load_64.c      |   29 +++++++++++++++++++++++++++++
>  arch/powerpc/purgatory/trampoline_64.S |   32 ++++++++++++++++++++++++++++++++
>  3 files changed, 65 insertions(+)
>

-- 
Thiago Jung Bauermann
IBM Linux Technology Center

_______________________________________________
kexec mailing list
kexec@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/kexec

  reply	other threads:[~2020-07-16  0:35 UTC|newest]

Thread overview: 125+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-07-13 17:20 [PATCH v3 00/12] ppc64: enable kdump support for kexec_file_load syscall Hari Bathini
2020-07-13 17:20 ` Hari Bathini
2020-07-13 17:20 ` Hari Bathini
2020-07-13 17:20 ` [PATCH v3 01/12] kexec_file: allow archs to handle special regions while locating memory hole Hari Bathini
2020-07-13 17:20   ` Hari Bathini
2020-07-13 17:20   ` Hari Bathini
2020-07-14 21:00   ` Thiago Jung Bauermann
2020-07-14 21:00     ` Thiago Jung Bauermann
2020-07-14 21:00     ` Thiago Jung Bauermann
2020-07-13 17:21 ` [PATCH v3 02/12] powerpc/kexec_file: mark PPC64 specific code Hari Bathini
2020-07-13 17:21   ` Hari Bathini
2020-07-13 17:21   ` Hari Bathini
2020-07-16  1:49   ` Thiago Jung Bauermann
2020-07-16  1:49     ` Thiago Jung Bauermann
2020-07-16  1:49     ` Thiago Jung Bauermann
2020-07-17  4:46     ` Hari Bathini
2020-07-17  4:46       ` Hari Bathini
2020-07-17  4:46       ` Hari Bathini
2020-07-17 18:34       ` Thiago Jung Bauermann
2020-07-17 18:34         ` Thiago Jung Bauermann
2020-07-13 17:21 ` [PATCH v3 03/12] powerpc/kexec_file: add helper functions for getting memory ranges Hari Bathini
2020-07-13 17:21   ` Hari Bathini
2020-07-13 17:21   ` Hari Bathini
2020-07-14 23:49   ` Thiago Jung Bauermann
2020-07-14 23:49     ` Thiago Jung Bauermann
2020-07-14 23:49     ` Thiago Jung Bauermann
2020-07-16 21:08     ` Hari Bathini
2020-07-16 21:08       ` Hari Bathini
2020-07-17  4:32     ` Hari Bathini
2020-07-17  4:32       ` Hari Bathini
2020-07-17  4:32       ` Hari Bathini
2020-07-17 20:00       ` Hari Bathini
2020-07-17 20:00         ` Hari Bathini
2020-07-13 17:21 ` [PATCH v3 04/12] ppc64/kexec_file: avoid stomping memory used by special regions Hari Bathini
2020-07-13 17:21   ` Hari Bathini
2020-07-13 17:21   ` Hari Bathini
2020-07-15  2:39   ` Thiago Jung Bauermann
2020-07-15  2:39     ` Thiago Jung Bauermann
2020-07-15  2:39     ` Thiago Jung Bauermann
2020-07-16  5:58     ` Thiago Jung Bauermann
2020-07-16  5:58       ` Thiago Jung Bauermann
2020-07-16  5:58       ` Thiago Jung Bauermann
2020-07-16 21:09     ` Hari Bathini
2020-07-16 21:09       ` Hari Bathini
2020-07-16 21:59       ` Thiago Jung Bauermann
2020-07-16 21:59         ` Thiago Jung Bauermann
2020-07-16 21:59         ` Thiago Jung Bauermann
2020-07-13 17:21 ` [PATCH v3 05/12] powerpc/drmem: make lmb walk a bit more flexible Hari Bathini
2020-07-13 17:21   ` Hari Bathini
2020-07-13 17:21   ` Hari Bathini
2020-07-15  3:50   ` Thiago Jung Bauermann
2020-07-15  3:50     ` Thiago Jung Bauermann
2020-07-15  3:50     ` Thiago Jung Bauermann
2020-07-16 21:09     ` Hari Bathini
2020-07-16 21:09       ` Hari Bathini
2020-07-16 22:01       ` Thiago Jung Bauermann
2020-07-16 22:01         ` Thiago Jung Bauermann
2020-07-16 22:01         ` Thiago Jung Bauermann
2020-07-13 17:22 ` [PATCH v3 06/12] ppc64/kexec_file: restrict memory usage of kdump kernel Hari Bathini
2020-07-13 17:22   ` Hari Bathini
2020-07-13 17:22   ` Hari Bathini
2020-07-15 22:52   ` Thiago Jung Bauermann
2020-07-15 22:52     ` Thiago Jung Bauermann
2020-07-15 22:52     ` Thiago Jung Bauermann
2020-07-16 21:10     ` Hari Bathini
2020-07-16 21:10       ` Hari Bathini
2020-07-16 22:03       ` Thiago Jung Bauermann
2020-07-16 22:03         ` Thiago Jung Bauermann
2020-07-16 22:03         ` Thiago Jung Bauermann
2020-07-17  4:17         ` Hari Bathini
2020-07-17  4:17           ` Hari Bathini
2020-07-13 17:22 ` [PATCH v3 07/12] ppc64/kexec_file: add support to relocate purgatory Hari Bathini
2020-07-13 17:22   ` Hari Bathini
2020-07-13 17:22   ` Hari Bathini
2020-07-16  0:20   ` Thiago Jung Bauermann
2020-07-16  0:20     ` Thiago Jung Bauermann
2020-07-16  0:20     ` Thiago Jung Bauermann
2020-07-16 21:11     ` Hari Bathini
2020-07-16 21:11       ` Hari Bathini
2020-07-16 22:12       ` Thiago Jung Bauermann
2020-07-16 22:12         ` Thiago Jung Bauermann
2020-07-16 22:12         ` Thiago Jung Bauermann
2020-07-13 17:22 ` [PATCH v3 08/12] ppc64/kexec_file: setup the stack for purgatory Hari Bathini
2020-07-13 17:22   ` Hari Bathini
2020-07-13 17:22   ` Hari Bathini
2020-07-16  0:35   ` Thiago Jung Bauermann [this message]
2020-07-16  0:35     ` Thiago Jung Bauermann
2020-07-16  0:35     ` Thiago Jung Bauermann
2020-07-16  1:40   ` Thiago Jung Bauermann
2020-07-16  1:40     ` Thiago Jung Bauermann
2020-07-16  1:40     ` Thiago Jung Bauermann
2020-07-13 17:22 ` [PATCH v3 09/12] ppc64/kexec_file: setup backup region for kdump kernel Hari Bathini
2020-07-13 17:22   ` Hari Bathini
2020-07-13 17:22   ` Hari Bathini
2020-07-16  1:38   ` Thiago Jung Bauermann
2020-07-16  1:38     ` Thiago Jung Bauermann
2020-07-16  1:38     ` Thiago Jung Bauermann
2020-07-16 21:10     ` Hari Bathini
2020-07-16 21:10       ` Hari Bathini
2020-07-16 22:06       ` Thiago Jung Bauermann
2020-07-16 22:06         ` Thiago Jung Bauermann
2020-07-16 22:06         ` Thiago Jung Bauermann
2020-07-13 17:23 ` [PATCH v3 10/12] ppc64/kexec_file: prepare elfcore header for crashing kernel Hari Bathini
2020-07-13 17:23   ` Hari Bathini
2020-07-13 17:23   ` Hari Bathini
2020-07-16  2:22   ` Thiago Jung Bauermann
2020-07-16  2:22     ` Thiago Jung Bauermann
2020-07-16  2:22     ` Thiago Jung Bauermann
2020-07-16 21:07     ` Hari Bathini
2020-07-16 21:07       ` Hari Bathini
2020-07-16 21:57       ` Thiago Jung Bauermann
2020-07-16 21:57         ` Thiago Jung Bauermann
2020-07-16 21:57         ` Thiago Jung Bauermann
2020-07-13 17:23 ` [PATCH v3 11/12] ppc64/kexec_file: add appropriate regions for memory reserve map Hari Bathini
2020-07-13 17:23   ` Hari Bathini
2020-07-13 17:23   ` Hari Bathini
2020-07-16  2:27   ` Thiago Jung Bauermann
2020-07-16  2:27     ` Thiago Jung Bauermann
2020-07-16  2:27     ` Thiago Jung Bauermann
2020-07-13 17:23 ` [PATCH v3 12/12] ppc64/kexec_file: fix kexec load failure with lack of memory hole Hari Bathini
2020-07-13 17:23   ` Hari Bathini
2020-07-13 17:23   ` Hari Bathini
2020-07-16  5:43   ` Thiago Jung Bauermann
2020-07-16  5:43     ` Thiago Jung Bauermann
2020-07-16  5:43     ` Thiago Jung Bauermann

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