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From: Dengcheng Zhu <dzhu@wavecomp.com>
To: pburton@wavecomp.com, ralf@linux-mips.org
Cc: linux-mips@linux-mips.org, rachel.mozes@intel.com,
	Dengcheng Zhu <dzhu@wavecomp.com>
Subject: [PATCH v5 4/5] MIPS: kexec: Relax memory restriction
Date: Tue, 11 Sep 2018 14:49:23 -0700	[thread overview]
Message-ID: <20180911214924.21993-5-dzhu@wavecomp.com> (raw)
In-Reply-To: <20180911214924.21993-1-dzhu@wavecomp.com>

We can rely on the system kernel and the dump capture kernel themselves in
memory usage.

Being restrictive with 512MB limit may cause kexec tool failure on some
platforms.

Tested-by: Rachel Mozes <rachel.mozes@intel.com>
Reported-by: Rachel Mozes <rachel.mozes@intel.com>
Signed-off-by: Dengcheng Zhu <dzhu@wavecomp.com>
---
 arch/mips/include/asm/kexec.h | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/arch/mips/include/asm/kexec.h b/arch/mips/include/asm/kexec.h
index 5eeb648c4e3a..40795ca89961 100644
--- a/arch/mips/include/asm/kexec.h
+++ b/arch/mips/include/asm/kexec.h
@@ -12,11 +12,11 @@
 #include <asm/stacktrace.h>
 
 /* Maximum physical address we can use pages from */
-#define KEXEC_SOURCE_MEMORY_LIMIT (0x20000000)
+#define KEXEC_SOURCE_MEMORY_LIMIT (-1UL)
 /* Maximum address we can reach in physical address mode */
-#define KEXEC_DESTINATION_MEMORY_LIMIT (0x20000000)
+#define KEXEC_DESTINATION_MEMORY_LIMIT (-1UL)
  /* Maximum address we can use for the control code buffer */
-#define KEXEC_CONTROL_MEMORY_LIMIT (0x20000000)
+#define KEXEC_CONTROL_MEMORY_LIMIT (-1UL)
 /* Reserve 3*4096 bytes for board-specific info */
 #define KEXEC_CONTROL_PAGE_SIZE (4096 + 3*4096)
 
-- 
2.17.1

  parent reply	other threads:[~2018-09-11 21:51 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-09-11 21:49 [PATCH v5 0/5] MIPS: kexec/kdump: Fix smp reboot and other issues Dengcheng Zhu
2018-09-11 21:49 ` [PATCH v5 1/5] MIPS: kexec: Mark CPU offline before disabling local IRQ Dengcheng Zhu
2018-09-11 21:49 ` [PATCH v5 2/5] MIPS: kexec: Make a framework for both jumping and halting on nonboot CPUs Dengcheng Zhu
2018-12-27 20:02   ` Aurelien Jarno
2018-09-11 21:49 ` [PATCH v5 3/5] MIPS: kexec: CPS systems to halt " Dengcheng Zhu
2018-09-11 21:49 ` Dengcheng Zhu [this message]
2018-09-11 21:49 ` [PATCH v5 5/5] MIPS: kexec: Use prepare method from Generic for UHI platforms Dengcheng Zhu
2018-09-23  0:23 ` [PATCH v5 0/5] MIPS: kexec/kdump: Fix smp reboot and other issues Paul Burton

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