On Wed Oct 22 at 14:38:10 EST in 2008, Michael Ellerman wrote:
This adds relocatable kernel support for kdump. With this one can
use the same regular kernel to capture the kdump. A signature
(0xfeed1234)
is passed in r6 from panic code to the next kernel through
kexec_sequence
and purgatory co
From: Mohan Kumar M <[EMAIL PROTECTED]>
This adds relocatable kernel support for kdump. With this one can
use the same regular kernel to capture the kdump. A signature (0xfeed1234)
is passed in r6 from panic code to the next kernel through kexec_sequence
and purgatory code. The signature is used t
Michael Ellerman wrote:
Does it? I see CONFIG_CRASH_DUMP depending on PPC64, so there is no
32-bit kdump possible. Or is someone working on it out-of-tree?
IIUC Anton Vorontsov is working on the 32-bit kdump kernel support.
Do you expect a function to do the checking in iommu.c?
You'd use
On Mon, 2008-10-20 at 15:04 +0530, Mohan Kumar M wrote:
> Michael Ellerman wrote:
> >>> #ifdef CONFIG_CRASH_DUMP
> >>> +#ifdef CONFIG_RELOCATABLE
> >>> +
> >>> +static inline void reserve_kdump_trampoline(void) { ; }
> >>> +static inline void setup_kdump_trampoline(void) { ; }
> >>> +
> >>> +#else
Michael Ellerman wrote:
Forwarded Message
The purgatory code compares the signature and sets the __kdump_flag in
head_64.S. During the boot up, kernel code checks __kdump_flag and if it
is set, the kernel will behave as relocatable kdump kernel. This kernel
will boot at the add
> > Forwarded Message
> > From: Mohan Kumar M <[EMAIL PROTECTED]>
> > To: [EMAIL PROTECTED]
> > Cc: linuxppc-dev@ozlabs.org, [EMAIL PROTECTED]
> > Subject: [PATCH] Support for relocatable kdump kernel
> > Date: Mon, 13 Oct 2008 05:04
Paul Mackerras wrote:
Mohan Kumar M writes:
Support for relocatable kdump kernel
@@ -1401,9 +1414,21 @@ _STATIC(__after_prom_start)
beq 9f /* have already put us at zero */
li r6,0x100/* Start offset, the first 0x100 */
Mohan Kumar M writes:
> Support for relocatable kdump kernel
> @@ -1401,9 +1414,21 @@ _STATIC(__after_prom_start)
> beq 9f /* have already put us at zero */
> li r6,0x100/* Start offset, the first 0x100 */
>
Support for relocatable kdump kernel
This patch adds relocatable kernel support for kdump. With this one can
use the same regular kernel to capture the kdump. A signature (0xfeed1234)
is passed in r8 from panic code to the next kernel through kexec_sequence
and purgatory code. The signature is use
Hi Paul,
Thank you for the review. I will implement the changes you suggested and
send the patches.
Regards,
Mohan.
Mohan Kumar M writes:
Support for relocatable kdump kernel
[snip]
@@ -1384,7 +1392,15 @@ _STATIC(__after_prom_start)
/* process relocations for the final address
Mohan Kumar M writes:
> Support for relocatable kdump kernel
[snip]
> @@ -1384,7 +1392,15 @@ _STATIC(__after_prom_start)
> /* process relocations for the final address of the kernel */
> lis r25,[EMAIL PROTECTED] /* compute virtual base of kernel */
> sldir25,r25,32
>
Support for relocatable kdump kernel
This patch adds relocatable kernel support for kdump. With this one can
use the same regular kernel to capture the kdump. A signature (0xfeed1234)
is passed in r8 from panic code to the next kernel through kexec_sequence
and purgatory code. The signature is use
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