diff options
| author | Sven Schnelle <svens@stackframe.org> | 2019-09-08 11:33:04 +0200 |
|---|---|---|
| committer | Helge Deller <deller@gmx.de> | 2019-09-08 15:37:04 +0200 |
| commit | fc697dc0c26a5908d467454e49440862d7fe96d0 (patch) | |
| tree | 89a0cc633b00b294644143b4a11a78bf18c77e0d /arch/parisc/include | |
| parent | parisc: add __pdc_cpu_rendezvous() (diff) | |
| download | linux-fc697dc0c26a5908d467454e49440862d7fe96d0.tar.xz linux-fc697dc0c26a5908d467454e49440862d7fe96d0.zip | |
parisc: add kexec syscall support
Signed-off-by: Sven Schnelle <svens@stackframe.org>
Signed-off-by: Helge Deller <deller@gmx.de>
Diffstat (limited to 'arch/parisc/include')
| -rw-r--r-- | arch/parisc/include/asm/fixmap.h | 1 | ||||
| -rw-r--r-- | arch/parisc/include/asm/kexec.h | 37 |
2 files changed, 38 insertions, 0 deletions
diff --git a/arch/parisc/include/asm/fixmap.h b/arch/parisc/include/asm/fixmap.h index 288da73d4cc0..e480b2c05407 100644 --- a/arch/parisc/include/asm/fixmap.h +++ b/arch/parisc/include/asm/fixmap.h @@ -30,6 +30,7 @@ enum fixed_addresses { /* Support writing RO kernel text via kprobes, jump labels, etc. */ FIX_TEXT_POKE0, + FIX_TEXT_KEXEC, FIX_BITMAP_COUNT }; diff --git a/arch/parisc/include/asm/kexec.h b/arch/parisc/include/asm/kexec.h new file mode 100644 index 000000000000..a99ea747d7ed --- /dev/null +++ b/arch/parisc/include/asm/kexec.h @@ -0,0 +1,37 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +#ifndef _ASM_PARISC_KEXEC_H +#define _ASM_PARISC_KEXEC_H + +#ifdef CONFIG_KEXEC + +/* Maximum physical address we can use pages from */ +#define KEXEC_SOURCE_MEMORY_LIMIT (-1UL) +/* Maximum address we can reach in physical address mode */ +#define KEXEC_DESTINATION_MEMORY_LIMIT (-1UL) +/* Maximum address we can use for the control code buffer */ +#define KEXEC_CONTROL_MEMORY_LIMIT (-1UL) + +#define KEXEC_CONTROL_PAGE_SIZE 4096 + +#define KEXEC_ARCH KEXEC_ARCH_PARISC +#define ARCH_HAS_KIMAGE_ARCH + +#ifndef __ASSEMBLY__ + +struct kimage_arch { + unsigned long initrd_start; + unsigned long initrd_end; + unsigned long cmdline; +}; + +static inline void crash_setup_regs(struct pt_regs *newregs, + struct pt_regs *oldregs) +{ + /* Dummy implementation for now */ +} + +#endif /* __ASSEMBLY__ */ + +#endif /* CONFIG_KEXEC */ + +#endif /* _ASM_PARISC_KEXEC_H */ |