From 6b6187f546f0ddad8ea84d22c3f7ad72133dcfe3 Mon Sep 17 00:00:00 2001

From: Sourabh Jain <sourabhjain@linux.ibm.com>

Date: Thu, 15 Sep 2022 14:12:40 +0530

Subject: [PATCH] ppc64: remove rma_top limit

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@linux.ibm.com>

Acked-by: Hari Bathini <hbathini@linux.ibm.com>

Signed-off-by: Simon Horman <horms@kernel.org>

---

 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);

-- 

2.38.1