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https://github.com/AuxXxilium/linux_dsm_epyc7002.git
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5ce94e9e8b
This patch sets KEXEC_CONTROL_MEMORY_LIMIT to (-1)UL. As the value is compared with physical addresses TASK_SIZE makes no sense. Machines where the RAM addresses start above TASK_SIZE kexecs eats all memory and crashes the kernel without this patch. Signed-off-by: Thomas Kunze <thommycheck@gmx.de> Acked-by: Richard Purdie <rpurdie@rpsys.net> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
34 lines
863 B
C
34 lines
863 B
C
#ifndef _ARM_KEXEC_H
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#define _ARM_KEXEC_H
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#ifdef CONFIG_KEXEC
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/* Maximum physical address we can use pages from */
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#define KEXEC_SOURCE_MEMORY_LIMIT (-1UL)
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/* Maximum address we can reach in physical address mode */
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#define KEXEC_DESTINATION_MEMORY_LIMIT (-1UL)
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/* Maximum address we can use for the control code buffer */
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#define KEXEC_CONTROL_MEMORY_LIMIT (-1UL)
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#define KEXEC_CONTROL_CODE_SIZE 4096
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#define KEXEC_ARCH KEXEC_ARCH_ARM
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#define KEXEC_BOOT_PARAMS_SIZE 1536
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#define KEXEC_ARM_ATAGS_OFFSET 0x1000
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#define KEXEC_ARM_ZIMAGE_OFFSET 0x8000
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#ifndef __ASSEMBLY__
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struct kimage;
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/* Provide a dummy definition to avoid build failures. */
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static inline void crash_setup_regs(struct pt_regs *newregs,
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struct pt_regs *oldregs) { }
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#endif /* __ASSEMBLY__ */
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#endif /* CONFIG_KEXEC */
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#endif /* _ARM_KEXEC_H */
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