diff options
author | Vasant Hegde <hegdevasant@linux.vnet.ibm.com> | 2019-07-12 16:47:56 +0530 |
---|---|---|
committer | Oliver O'Halloran <oohall@gmail.com> | 2019-08-15 17:54:08 +1000 |
commit | 6326c712e770c398cb39dbc7346f13bbf1166cea (patch) | |
tree | 8e5f31ac69b35aaa857043dfe8b6cc21f18ed635 /hdata | |
parent | 4a669d0f49c43880aefd752a8b223eb0c3829864 (diff) | |
download | skiboot-6326c712e770c398cb39dbc7346f13bbf1166cea.zip skiboot-6326c712e770c398cb39dbc7346f13bbf1166cea.tar.gz skiboot-6326c712e770c398cb39dbc7346f13bbf1166cea.tar.bz2 |
hdata: Add "mpipl-boot" property to "dump" node
During MPIPL boot, hostboot updates HDAT to indicate its MPIPL boot. Lets
add "mpipl-boot" property to device tree. So that kernel can detect its
MPIPL boot and create dump.
Device tree property:
/ibm,opal/dump/mpipl-boot - Indicate kernel that its MPIPL boot
Signed-off-by: Vasant Hegde <hegdevasant@linux.vnet.ibm.com>
[oliver: rebased]
Signed-off-by: Oliver O'Halloran <oohall@gmail.com>
Diffstat (limited to 'hdata')
-rw-r--r-- | hdata/spira.c | 43 | ||||
-rw-r--r-- | hdata/spira.h | 4 |
2 files changed, 47 insertions, 0 deletions
diff --git a/hdata/spira.c b/hdata/spira.c index 41f45b3..0c44a66 100644 --- a/hdata/spira.c +++ b/hdata/spira.c @@ -928,6 +928,46 @@ static void dt_init_secureboot_node(const struct iplparams_sysparams *sysparams) dt_add_property_cells(node, "hw-key-hash-size", hw_key_hash_size); } +static void opal_dump_add_mpipl_boot(const struct iplparams_iplparams *p) +{ + u32 mdrt_cnt = spira.ntuples.mdump_res.act_cnt; + u32 mdrt_max_cnt = MDRT_TABLE_SIZE / sizeof(struct mdrt_table); + struct dt_node *dump_node; + + dump_node = dt_find_by_path(opal_node, "dump"); + if (!dump_node) + return; + + /* Check boot params to detect MPIPL boot or not */ + if (p->cec_ipl_maj_type != IPLPARAMS_MAJ_TYPE_REIPL) + return; + + /* + * On FSP system we get minor type as post dump IPL and on BMC system + * we get platform reboot. Hence lets check for both values. + */ + if (p->cec_ipl_min_type != IPLPARAMS_MIN_TYPE_POST_DUMP && + p->cec_ipl_min_type != IPLPARAMS_MIN_TYPE_PLAT_REBOOT) { + prlog(PR_NOTICE, "DUMP: Non MPIPL reboot " + "[minor type = 0x%x]\n", p->cec_ipl_min_type); + return; + } + + if (p->cec_ipl_attrib != IPLPARAMS_ATTRIB_MEM_PRESERVE) { + prlog(PR_DEBUG, "DUMP: Memory not preserved\n"); + return; + } + + if (mdrt_cnt == 0 || mdrt_cnt >= mdrt_max_cnt) { + prlog(PR_DEBUG, "DUMP: Invalid MDRT count : %x\n", mdrt_cnt); + return; + } + + prlog(PR_NOTICE, "DUMP: Dump found, MDRT count = 0x%x\n", mdrt_cnt); + + dt_add_property(dump_node, "mpipl-boot", NULL, 0); +} + static void add_opal_dump_node(void) { u64 fw_load_area[4]; @@ -1088,6 +1128,9 @@ static void add_iplparams_ipl_params(const void *iplp, struct dt_node *node) else dt_add_property_strings(led_node, DT_PROPERTY_LED_MODE, LED_MODE_GUIDING_LIGHT); + + /* Populate opal dump result table */ + opal_dump_add_mpipl_boot(p); } static void add_iplparams_serials(const void *iplp, struct dt_node *node) diff --git a/hdata/spira.h b/hdata/spira.h index 16bde6f..ce24441 100644 --- a/hdata/spira.h +++ b/hdata/spira.h @@ -388,8 +388,12 @@ struct iplparams_iplparams { #define IPLPARAMS_FSP_FW_IPL_SIDE_TEMP 0x01 uint8_t ipl_speed; __be16 cec_ipl_attrib; +#define IPLPARAMS_ATTRIB_MEM_PRESERVE PPC_BIT16(2) uint8_t cec_ipl_maj_type; +#define IPLPARAMS_MAJ_TYPE_REIPL 0x1 uint8_t cec_ipl_min_type; +#define IPLPARAMS_MIN_TYPE_POST_DUMP 0xc +#define IPLPARAMS_MIN_TYPE_PLAT_REBOOT 0xd uint8_t os_ipl_mode; uint8_t keylock_pos; uint8_t lmb_size; |