File 0001-ieee1275-Further-increase-initially-alloca... of Package grub2.30710

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File 0001-ieee1275-Further-increase-initially-allocated-heap-f.patch of Package grub2.30710

From d44e0a892621a744e9a64e17ed5676470ef4f023 Mon Sep 17 00:00:00 2001
From: Wen Xiong <wenxiong@linux.ibm.com>
Date: Mon, 20 Feb 2023 15:58:14 -0500
Subject: [PATCH 1/2] ieee1275: Further increase initially allocated heap from
 1/3 to 1/2

The memory increase to 1/3 of 391MB (~127MB) was still insufficient
to boot the kernel and initrd of the SuSE distribution:

initrd        2023-Jan-18 04:27    114.9M
linux         2023-Jan-17 05:23     45.9M

Therefore, further increase the initially allocated heap to 1/2
of 391MB to ~191MB, which now allows to boot the system from an
ISO.

Signed-off-by: Stefan Berger <stefanb@linux.ibm.com>
---
 grub-core/kern/ieee1275/init.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/grub-core/kern/ieee1275/init.c b/grub-core/kern/ieee1275/init.c
index 2a2409d45..e1dbff86a 100644
--- a/grub-core/kern/ieee1275/init.c
+++ b/grub-core/kern/ieee1275/init.c
@@ -47,7 +47,7 @@
 #include <grub/lockdown.h>
 
 /* The maximum heap size we're going to claim. Not used by sparc.
-   We allocate 1/3 of the available memory under 4G, up to this limit. */
+   We allocate 1/2 of the available memory under 4G, up to this limit. */
 #ifdef __i386__
 #define HEAP_MAX_SIZE		(unsigned long) (64 * 1024 * 1024)
 #else // __powerpc__
@@ -417,7 +417,7 @@ grub_claim_heap (void)
 
   grub_machine_mmap_iterate (heap_size, &total);
 
-  total = total / 3;
+  total = total / 2;
   if (total > HEAP_MAX_SIZE)
     total = HEAP_MAX_SIZE;
 
-- 
2.39.1

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