[PATCH] ppc64: remove rma_top limit

[Coiby Xu]

Hi,

I'm curious to ask which bug this patch is going to fix. I tested it
yesterday and it doesn't fix
https://bugzilla.redhat.com/show_bug.cgi?id=2126409.

On Thu, Sep 15, 2022 at 02:12:40PM +0530, Sourabh Jain wrote:
>Restricting kexec tool to allocate hole for kexec segments below 768MB
>may not be relavent now since first memory block size can be 1024MB and
>more.
>
>Removing rma_top restriction will give more space to find holes for
>kexec segments and existing in-place checks make sure that kexec segment
>allocation doesn't cross the first memory block because every kexec segment
>has to be within first memory block for kdump kernel to boot properly.
>
>Signed-off-by: Sourabh Jain <sourabhjain at linux.ibm.com>
>---
> kexec/arch/ppc64/kexec-ppc64.c | 2 --
> 1 file changed, 2 deletions(-)
>
>diff --git a/kexec/arch/ppc64/kexec-ppc64.c b/kexec/arch/ppc64/kexec-ppc64.c
>index 5b17740..611809f 100644
>--- a/kexec/arch/ppc64/kexec-ppc64.c
>+++ b/kexec/arch/ppc64/kexec-ppc64.c
>@@ -717,8 +717,6 @@ static int get_devtree_details(unsigned long kexec_flags)
> 			if (base < rma_base) {
> 				rma_base = base;
> 				rma_top = base + be64_to_cpu(((uint64_t *)buf)[1]);
>-				if (rma_top > 0x30000000UL)
>-					rma_top = 0x30000000UL;
> 			}
>
> 			fclose(file);
>-- 
>2.37.3
>
>
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>

-- 
Best regards,
Coiby