diff options
| author | Alexander Egorenkov <egorenar@linux.ibm.com> | 2020-09-29 20:24:55 +0200 |
|---|---|---|
| committer | Vasily Gorbik <gor@linux.ibm.com> | 2020-10-02 14:40:48 +0200 |
| commit | bd37b36832f62bf42ab66da8744191d99252a6e3 (patch) | |
| tree | 636294d049a749d031936d3f6b7726feb1aa0c28 /arch/s390/boot/ipl_parm.c | |
| parent | d9f12e48d08ec08ace574050a838e001e442ee38 (diff) | |
s390/nvme: support firmware-assisted dump to NVMe disks
From the kernel perspective NVMe dump works exactly like zFCP dump.
Therefore, adapt all places where code explicitly tests only for
IPL of type FCP DUMP. And also set the memory end correctly in this case.
Signed-off-by: Alexander Egorenkov <egorenar@linux.ibm.com>
Reviewed-by: Vasily Gorbik <gor@linux.ibm.com>
Reviewed-by: Philipp Rudo <prudo@linux.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
Diffstat (limited to 'arch/s390/boot/ipl_parm.c')
| -rw-r--r-- | arch/s390/boot/ipl_parm.c | 15 |
1 files changed, 12 insertions, 3 deletions
diff --git a/arch/s390/boot/ipl_parm.c b/arch/s390/boot/ipl_parm.c index f26c34e6f1e6..f94b91d72620 100644 --- a/arch/s390/boot/ipl_parm.c +++ b/arch/s390/boot/ipl_parm.c @@ -280,14 +280,23 @@ void parse_boot_command_line(void) } } +static inline bool is_ipl_block_dump(void) +{ + if (ipl_block.pb0_hdr.pbt == IPL_PBT_FCP && + ipl_block.fcp.opt == IPL_PB0_FCP_OPT_DUMP) + return true; + if (ipl_block.pb0_hdr.pbt == IPL_PBT_NVME && + ipl_block.nvme.opt == IPL_PB0_NVME_OPT_DUMP) + return true; + return false; +} + void setup_memory_end(void) { #ifdef CONFIG_CRASH_DUMP if (OLDMEM_BASE) { kaslr_enabled = 0; - } else if (ipl_block_valid && - ipl_block.pb0_hdr.pbt == IPL_PBT_FCP && - ipl_block.fcp.opt == IPL_PB0_FCP_OPT_DUMP) { + } else if (ipl_block_valid && is_ipl_block_dump()) { kaslr_enabled = 0; if (!sclp_early_get_hsa_size(&memory_end) && memory_end) memory_end_set = 1; |