1 | /* |
2 | * QEMU PowerNV, BMC related functions |
3 | * |
4 | * Copyright (c) 2016-2017, IBM Corporation. |
5 | * |
6 | * This program is free software; you can redistribute it and/or modify |
7 | * it under the terms of the GNU General Public License, version 2, as |
8 | * published by the Free Software Foundation. |
9 | * |
10 | * This program is distributed in the hope that it will be useful, |
11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
13 | * GNU General Public License for more details. |
14 | * |
15 | * You should have received a copy of the GNU General Public License |
16 | * along with this program; if not, see <http://www.gnu.org/licenses/>. |
17 | */ |
18 | |
19 | #include "qemu/osdep.h" |
20 | #include "target/ppc/cpu.h" |
21 | #include "qemu/log.h" |
22 | #include "hw/ipmi/ipmi.h" |
23 | #include "hw/ppc/fdt.h" |
24 | |
25 | #include "hw/ppc/pnv.h" |
26 | |
27 | #include <libfdt.h> |
28 | |
29 | /* TODO: include definition in ipmi.h */ |
30 | #define IPMI_SDR_FULL_TYPE 1 |
31 | |
32 | /* |
33 | * OEM SEL Event data packet sent by BMC in response of a Read Event |
34 | * Message Buffer command |
35 | */ |
36 | typedef struct OemSel { |
37 | /* SEL header */ |
38 | uint8_t id[2]; |
39 | uint8_t type; |
40 | uint8_t timestamp[4]; |
41 | uint8_t manuf_id[3]; |
42 | |
43 | /* OEM SEL data (6 bytes) follows */ |
44 | uint8_t netfun; |
45 | uint8_t cmd; |
46 | uint8_t data[4]; |
47 | } OemSel; |
48 | |
49 | #define SOFT_OFF 0x00 |
50 | #define SOFT_REBOOT 0x01 |
51 | |
52 | static void pnv_gen_oem_sel(IPMIBmc *bmc, uint8_t reboot) |
53 | { |
54 | /* IPMI SEL Event are 16 bytes long */ |
55 | OemSel sel = { |
56 | .id = { 0x55 , 0x55 }, |
57 | .type = 0xC0, /* OEM */ |
58 | .manuf_id = { 0x0, 0x0, 0x0 }, |
59 | .timestamp = { 0x0, 0x0, 0x0, 0x0 }, |
60 | .netfun = 0x3A, /* IBM */ |
61 | .cmd = 0x04, /* AMI OEM SEL Power Notification */ |
62 | .data = { reboot, 0xFF, 0xFF, 0xFF }, |
63 | }; |
64 | |
65 | ipmi_bmc_gen_event(bmc, (uint8_t *) &sel, 0 /* do not log the event */); |
66 | } |
67 | |
68 | void pnv_bmc_powerdown(IPMIBmc *bmc) |
69 | { |
70 | pnv_gen_oem_sel(bmc, SOFT_OFF); |
71 | } |
72 | |
73 | void pnv_dt_bmc_sensors(IPMIBmc *bmc, void *fdt) |
74 | { |
75 | int offset; |
76 | int i; |
77 | const struct ipmi_sdr_compact *sdr; |
78 | uint16_t nextrec; |
79 | |
80 | offset = fdt_add_subnode(fdt, 0, "/bmc" ); |
81 | _FDT(offset); |
82 | |
83 | _FDT((fdt_setprop_string(fdt, offset, "name" , "bmc" ))); |
84 | _FDT((fdt_setprop_cell(fdt, offset, "#address-cells" , 0x1))); |
85 | _FDT((fdt_setprop_cell(fdt, offset, "#size-cells" , 0x0))); |
86 | |
87 | offset = fdt_add_subnode(fdt, offset, "sensors" ); |
88 | _FDT(offset); |
89 | |
90 | _FDT((fdt_setprop_cell(fdt, offset, "#address-cells" , 0x1))); |
91 | _FDT((fdt_setprop_cell(fdt, offset, "#size-cells" , 0x0))); |
92 | |
93 | for (i = 0; !ipmi_bmc_sdr_find(bmc, i, &sdr, &nextrec); i++) { |
94 | int off; |
95 | char *name; |
96 | |
97 | if (sdr->header.rec_type != IPMI_SDR_COMPACT_TYPE && |
98 | sdr->header.rec_type != IPMI_SDR_FULL_TYPE) { |
99 | continue; |
100 | } |
101 | |
102 | name = g_strdup_printf("sensor@%x" , sdr->sensor_owner_number); |
103 | off = fdt_add_subnode(fdt, offset, name); |
104 | _FDT(off); |
105 | g_free(name); |
106 | |
107 | _FDT((fdt_setprop_cell(fdt, off, "reg" , sdr->sensor_owner_number))); |
108 | _FDT((fdt_setprop_string(fdt, off, "name" , "sensor" ))); |
109 | _FDT((fdt_setprop_string(fdt, off, "compatible" , "ibm,ipmi-sensor" ))); |
110 | _FDT((fdt_setprop_cell(fdt, off, "ipmi-sensor-reading-type" , |
111 | sdr->reading_type))); |
112 | _FDT((fdt_setprop_cell(fdt, off, "ipmi-entity-id" , |
113 | sdr->entity_id))); |
114 | _FDT((fdt_setprop_cell(fdt, off, "ipmi-entity-instance" , |
115 | sdr->entity_instance))); |
116 | _FDT((fdt_setprop_cell(fdt, off, "ipmi-sensor-type" , |
117 | sdr->sensor_type))); |
118 | } |
119 | } |
120 | |