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| author | Philipp Rudo <prudo@linux.ibm.com> | 2019-03-06 17:36:26 +0100 |
|---|---|---|
| committer | Martin Schwidefsky <schwidefsky@de.ibm.com> | 2019-04-29 10:43:57 +0200 |
| commit | d0d249d75dda1b101624316a52d117be07b8ccff (patch) | |
| tree | aa53d33008dd6443ac9401c39a6a9f13d27446b5 /arch/s390/include | |
| parent | 4c0f032d496385fa8071e404a1bc33f4abbc2f81 (diff) | |
| download | linux-next-d0d249d75dda1b101624316a52d117be07b8ccff.tar.gz | |
s390/kexec_file: Simplify parmarea access
Access the parmarea in head.S via a struct instead of individual offsets.
While at it make the fields in the parmarea .quads.
Signed-off-by: Philipp Rudo <prudo@linux.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Diffstat (limited to 'arch/s390/include')
| -rw-r--r-- | arch/s390/include/asm/kexec.h | 7 | ||||
| -rw-r--r-- | arch/s390/include/asm/setup.h | 10 |
2 files changed, 14 insertions, 3 deletions
diff --git a/arch/s390/include/asm/kexec.h b/arch/s390/include/asm/kexec.h index 825dd0f7f221..08dc2b74858d 100644 --- a/arch/s390/include/asm/kexec.h +++ b/arch/s390/include/asm/kexec.h @@ -11,6 +11,7 @@ #include <asm/processor.h> #include <asm/page.h> +#include <asm/setup.h> /* * KEXEC_SOURCE_MEMORY_LIMIT maximum page get_free_page can return. * I.e. Maximum page that is mapped directly into kernel memory, @@ -51,11 +52,11 @@ struct s390_load_data { /* Pointer to the kernel buffer. Used to register cmdline etc.. */ void *kernel_buf; + /* Parmarea in the kernel buffer. */ + struct parmarea *parm; + /* Total size of loaded segments in memory. Used as an offset. */ size_t memsz; - - /* Load address of initrd. Used to register INITRD_START in kernel. */ - unsigned long initrd_load_addr; }; int kexec_file_add_purgatory(struct kimage *image, diff --git a/arch/s390/include/asm/setup.h b/arch/s390/include/asm/setup.h index efda97804aa4..b603cc09c895 100644 --- a/arch/s390/include/asm/setup.h +++ b/arch/s390/include/asm/setup.h @@ -65,6 +65,16 @@ #define OLDMEM_SIZE (*(unsigned long *) (OLDMEM_SIZE_OFFSET)) #define COMMAND_LINE ((char *) (COMMAND_LINE_OFFSET)) +struct parmarea { + unsigned long ipl_device; /* 0x10400 */ + unsigned long initrd_start; /* 0x10408 */ + unsigned long initrd_size; /* 0x10410 */ + unsigned long oldmem_base; /* 0x10418 */ + unsigned long oldmem_size; /* 0x10420 */ + char pad1[0x10480 - 0x10428]; /* 0x10428 - 0x10480 */ + char command_line[ARCH_COMMAND_LINE_SIZE]; /* 0x10480 */ +}; + extern int noexec_disabled; extern int memory_end_set; extern unsigned long memory_end; |