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kexec-tools: ppc64: remove rma_top limit

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Resolves: bz2145087
Conflict: None

commit 6b6187f546f0ddad8ea84d22c3f7ad72133dcfe3
Author: Sourabh Jain <sourabhjain@linux.ibm.com>
Date:   Thu Sep 15 14:12:40 2022 +0530

    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>

Signed-off-by: Coiby Xu <coxu@redhat.com>
This commit is contained in:
Coiby Xu 2022-12-06 10:58:34 +08:00
parent fd2521df50
commit d88a4a1402
2 changed files with 40 additions and 0 deletions
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37
kexec-tools-2.0.25-ppc64-ppc64-remove-rma_top-limit.patch Normal file
View File

@ -0,0 +1,37 @@
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

3
kexec-tools.spec
View File

@ -99,6 +99,7 @@ Requires: systemd-udev%{?_isa}
#
# Patches 301 through 400 are meant for ppc64 kexec-tools enablement
#
Patch301: kexec-tools-2.0.25-ppc64-ppc64-remove-rma_top-limit.patch
#
# Patches 401 through 500 are meant for s390 kexec-tools enablement
@ -126,6 +127,8 @@ mkdir -p -m755 kcp
tar -z -x -v -f %{SOURCE9}
tar -z -x -v -f %{SOURCE19}
%patch301 -p1
%ifarch ppc
%define archdef ARCH=ppc
%endif