diff options
| -rw-r--r-- | arch/s390/boot/ipl_parm.c | 15 | ||||
| -rw-r--r-- | arch/s390/include/asm/ipl.h | 6 | ||||
| -rw-r--r-- | arch/s390/kernel/crash_dump.c | 16 | ||||
| -rw-r--r-- | arch/s390/kernel/setup.c | 4 | ||||
| -rw-r--r-- | arch/s390/kernel/smp.c | 12 | ||||
| -rw-r--r-- | drivers/s390/char/sclp_sdias.c | 2 | ||||
| -rw-r--r-- | drivers/s390/char/zcore.c | 17 |
7 files changed, 47 insertions, 25 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; diff --git a/arch/s390/include/asm/ipl.h b/arch/s390/include/asm/ipl.h index a72d195bf92d..a9e2c7295b35 100644 --- a/arch/s390/include/asm/ipl.h +++ b/arch/s390/include/asm/ipl.h @@ -95,6 +95,12 @@ extern struct ipl_info ipl_info; extern void setup_ipl(void); extern void set_os_info_reipl_block(void); +static inline bool is_ipl_type_dump(void) +{ + return (ipl_info.type == IPL_TYPE_FCP_DUMP) || + (ipl_info.type == IPL_TYPE_NVME_DUMP); +} + struct ipl_report { struct ipl_parameter_block *ipib; struct list_head components; diff --git a/arch/s390/kernel/crash_dump.c b/arch/s390/kernel/crash_dump.c index c42ce348103c..205b2e2648aa 100644 --- a/arch/s390/kernel/crash_dump.c +++ b/arch/s390/kernel/crash_dump.c @@ -141,7 +141,7 @@ int copy_oldmem_kernel(void *dst, void *src, size_t count) while (count) { from = __pa(src); if (!OLDMEM_BASE && from < sclp.hsa_size) { - /* Copy from zfcpdump HSA area */ + /* Copy from zfcp/nvme dump HSA area */ len = min(count, sclp.hsa_size - from); rc = memcpy_hsa_kernel(dst, from, len); if (rc) @@ -184,7 +184,7 @@ static int copy_oldmem_user(void __user *dst, void *src, size_t count) while (count) { from = __pa(src); if (!OLDMEM_BASE && from < sclp.hsa_size) { - /* Copy from zfcpdump HSA area */ + /* Copy from zfcp/nvme dump HSA area */ len = min(count, sclp.hsa_size - from); rc = memcpy_hsa_user(dst, from, len); if (rc) @@ -258,7 +258,7 @@ static int remap_oldmem_pfn_range_kdump(struct vm_area_struct *vma, } /* - * Remap "oldmem" for zfcpdump + * Remap "oldmem" for zfcp/nvme dump * * We only map available memory above HSA size. Memory below HSA size * is read on demand using the copy_oldmem_page() function. @@ -283,7 +283,7 @@ static int remap_oldmem_pfn_range_zfcpdump(struct vm_area_struct *vma, } /* - * Remap "oldmem" for kdump or zfcpdump + * Remap "oldmem" for kdump or zfcp/nvme dump */ int remap_oldmem_pfn_range(struct vm_area_struct *vma, unsigned long from, unsigned long pfn, unsigned long size, pgprot_t prot) @@ -632,11 +632,11 @@ int elfcorehdr_alloc(unsigned long long *addr, unsigned long long *size) u32 alloc_size; u64 hdr_off; - /* If we are not in kdump or zfcpdump mode return */ - if (!OLDMEM_BASE && ipl_info.type != IPL_TYPE_FCP_DUMP) + /* If we are not in kdump or zfcp/nvme dump mode return */ + if (!OLDMEM_BASE && !is_ipl_type_dump()) return 0; - /* If we cannot get HSA size for zfcpdump return error */ - if (ipl_info.type == IPL_TYPE_FCP_DUMP && !sclp.hsa_size) + /* If we cannot get HSA size for zfcp/nvme dump return error */ + if (is_ipl_type_dump() && !sclp.hsa_size) return -ENODEV; /* For kdump, exclude previous crashkernel memory */ diff --git a/arch/s390/kernel/setup.c b/arch/s390/kernel/setup.c index c1b78aae270b..419a0604959f 100644 --- a/arch/s390/kernel/setup.c +++ b/arch/s390/kernel/setup.c @@ -251,7 +251,7 @@ static void __init conmode_default(void) #ifdef CONFIG_CRASH_DUMP static void __init setup_zfcpdump(void) { - if (ipl_info.type != IPL_TYPE_FCP_DUMP) + if (!is_ipl_type_dump()) return; if (OLDMEM_BASE) return; @@ -1175,7 +1175,7 @@ void __init setup_arch(char **cmdline_p) if (IS_ENABLED(CONFIG_EXPOLINE)) nospec_init_branches(); - /* Setup zfcpdump support */ + /* Setup zfcp/nvme dump support */ setup_zfcpdump(); /* Add system specific data to the random pool */ diff --git a/arch/s390/kernel/smp.c b/arch/s390/kernel/smp.c index 85700bd85f98..ebfe86d097f0 100644 --- a/arch/s390/kernel/smp.c +++ b/arch/s390/kernel/smp.c @@ -606,14 +606,14 @@ int smp_store_status(int cpu) /* * Collect CPU state of the previous, crashed system. * There are four cases: - * 1) standard zfcp dump - * condition: OLDMEM_BASE == NULL && ipl_info.type == IPL_TYPE_FCP_DUMP + * 1) standard zfcp/nvme dump + * condition: OLDMEM_BASE == NULL && is_ipl_type_dump() == true * The state for all CPUs except the boot CPU needs to be collected * with sigp stop-and-store-status. The boot CPU state is located in * the absolute lowcore of the memory stored in the HSA. The zcore code * will copy the boot CPU state from the HSA. - * 2) stand-alone kdump for SCSI (zfcp dump with swapped memory) - * condition: OLDMEM_BASE != NULL && ipl_info.type == IPL_TYPE_FCP_DUMP + * 2) stand-alone kdump for SCSI/NVMe (zfcp/nvme dump with swapped memory) + * condition: OLDMEM_BASE != NULL && is_ipl_type_dump() == true * The state for all CPUs except the boot CPU needs to be collected * with sigp stop-and-store-status. The firmware or the boot-loader * stored the registers of the boot CPU in the absolute lowcore in the @@ -660,7 +660,7 @@ void __init smp_save_dump_cpus(void) unsigned long page; bool is_boot_cpu; - if (!(OLDMEM_BASE || ipl_info.type == IPL_TYPE_FCP_DUMP)) + if (!(OLDMEM_BASE || is_ipl_type_dump())) /* No previous system present, normal boot. */ return; /* Allocate a page as dumping area for the store status sigps */ @@ -686,7 +686,7 @@ void __init smp_save_dump_cpus(void) /* Get the vector registers */ smp_save_cpu_vxrs(sa, addr, is_boot_cpu, page); /* - * For a zfcp dump OLDMEM_BASE == NULL and the registers + * For a zfcp/nvme dump OLDMEM_BASE == NULL and the registers * of the boot CPU are stored in the HSA. To retrieve * these registers an SCLP request is required which is * done by drivers/s390/char/zcore.c:init_cpu_info() diff --git a/drivers/s390/char/sclp_sdias.c b/drivers/s390/char/sclp_sdias.c index be8cad61b4cf..215d4b4a5ff5 100644 --- a/drivers/s390/char/sclp_sdias.c +++ b/drivers/s390/char/sclp_sdias.c @@ -257,7 +257,7 @@ static int __init sclp_sdias_init_async(void) int __init sclp_sdias_init(void) { - if (ipl_info.type != IPL_TYPE_FCP_DUMP) + if (!is_ipl_type_dump()) return 0; sclp_sdias_sccb = (void *) __get_free_page(GFP_KERNEL | GFP_DMA); BUG_ON(!sclp_sdias_sccb); diff --git a/drivers/s390/char/zcore.c b/drivers/s390/char/zcore.c index d29f1b71618e..1515fdc3c1ab 100644 --- a/drivers/s390/char/zcore.c +++ b/drivers/s390/char/zcore.c @@ -1,7 +1,7 @@ // SPDX-License-Identifier: GPL-1.0+ /* * zcore module to export memory content and register sets for creating system - * dumps on SCSI disks (zfcpdump). + * dumps on SCSI/NVMe disks (zfcp/nvme dump). * * For more information please refer to Documentation/s390/zfcpdump.rst * @@ -243,7 +243,7 @@ static int __init zcore_init(void) unsigned char arch; int rc; - if (ipl_info.type != IPL_TYPE_FCP_DUMP) + if (!is_ipl_type_dump()) return -ENODATA; if (OLDMEM_BASE) return -ENODATA; @@ -252,9 +252,16 @@ static int __init zcore_init(void) debug_register_view(zcore_dbf, &debug_sprintf_view); debug_set_level(zcore_dbf, 6); - TRACE("devno: %x\n", ipl_info.data.fcp.dev_id.devno); - TRACE("wwpn: %llx\n", (unsigned long long) ipl_info.data.fcp.wwpn); - TRACE("lun: %llx\n", (unsigned long long) ipl_info.data.fcp.lun); + if (ipl_info.type == IPL_TYPE_FCP_DUMP) { + TRACE("type: fcp\n"); + TRACE("devno: %x\n", ipl_info.data.fcp.dev_id.devno); + TRACE("wwpn: %llx\n", (unsigned long long) ipl_info.data.fcp.wwpn); + TRACE("lun: %llx\n", (unsigned long long) ipl_info.data.fcp.lun); + } else if (ipl_info.type == IPL_TYPE_NVME_DUMP) { + TRACE("type: nvme\n"); + TRACE("fid: %x\n", ipl_info.data.nvme.fid); + TRACE("nsid: %x\n", ipl_info.data.nvme.nsid); + } rc = sclp_sdias_init(); if (rc) |