X-Git-Url: https://git.librecmc.org/?a=blobdiff_plain;f=lib%2Fsmbios.c;h=7b74971f68783205c2dfaab9e5a30f24b72139f4;hb=e731af4893f7741c66254161ad9b6f5280369895;hp=326eb00230dfd535b33ed425d48a1ecd18d8133e;hpb=60a4df32623a77f1bfb6f7361fe2442f03c69edb;p=oweals%2Fu-boot.git diff --git a/lib/smbios.c b/lib/smbios.c index 326eb00230..7b74971f68 100644 --- a/lib/smbios.c +++ b/lib/smbios.c @@ -6,6 +6,8 @@ */ #include +#include +#include #include #include #include @@ -72,9 +74,10 @@ static int smbios_string_table_len(char *start) static int smbios_write_type0(ulong *current, int handle) { - struct smbios_type0 *t = (struct smbios_type0 *)*current; + struct smbios_type0 *t; int len = sizeof(struct smbios_type0); + t = map_sysmem(*current, len); memset(t, 0, sizeof(struct smbios_type0)); fill_smbios_header(t, SMBIOS_BIOS_INFORMATION, len, handle); t->vendor = smbios_add_string(t->eos, "U-Boot"); @@ -101,16 +104,18 @@ static int smbios_write_type0(ulong *current, int handle) len = t->length + smbios_string_table_len(t->eos); *current += len; + unmap_sysmem(t); return len; } static int smbios_write_type1(ulong *current, int handle) { - struct smbios_type1 *t = (struct smbios_type1 *)*current; + struct smbios_type1 *t; int len = sizeof(struct smbios_type1); char *serial_str = env_get("serial#"); + t = map_sysmem(*current, len); memset(t, 0, sizeof(struct smbios_type1)); fill_smbios_header(t, SMBIOS_SYSTEM_INFORMATION, len, handle); t->manufacturer = smbios_add_string(t->eos, CONFIG_SMBIOS_MANUFACTURER); @@ -122,15 +127,17 @@ static int smbios_write_type1(ulong *current, int handle) len = t->length + smbios_string_table_len(t->eos); *current += len; + unmap_sysmem(t); return len; } static int smbios_write_type2(ulong *current, int handle) { - struct smbios_type2 *t = (struct smbios_type2 *)*current; + struct smbios_type2 *t; int len = sizeof(struct smbios_type2); + t = map_sysmem(*current, len); memset(t, 0, sizeof(struct smbios_type2)); fill_smbios_header(t, SMBIOS_BOARD_INFORMATION, len, handle); t->manufacturer = smbios_add_string(t->eos, CONFIG_SMBIOS_MANUFACTURER); @@ -140,15 +147,17 @@ static int smbios_write_type2(ulong *current, int handle) len = t->length + smbios_string_table_len(t->eos); *current += len; + unmap_sysmem(t); return len; } static int smbios_write_type3(ulong *current, int handle) { - struct smbios_type3 *t = (struct smbios_type3 *)*current; + struct smbios_type3 *t; int len = sizeof(struct smbios_type3); + t = map_sysmem(*current, len); memset(t, 0, sizeof(struct smbios_type3)); fill_smbios_header(t, SMBIOS_SYSTEM_ENCLOSURE, len, handle); t->manufacturer = smbios_add_string(t->eos, CONFIG_SMBIOS_MANUFACTURER); @@ -160,6 +169,7 @@ static int smbios_write_type3(ulong *current, int handle) len = t->length + smbios_string_table_len(t->eos); *current += len; + unmap_sysmem(t); return len; } @@ -198,9 +208,10 @@ static void smbios_write_type4_dm(struct smbios_type4 *t) static int smbios_write_type4(ulong *current, int handle) { - struct smbios_type4 *t = (struct smbios_type4 *)*current; + struct smbios_type4 *t; int len = sizeof(struct smbios_type4); + t = map_sysmem(*current, len); memset(t, 0, sizeof(struct smbios_type4)); fill_smbios_header(t, SMBIOS_PROCESSOR_INFORMATION, len, handle); t->processor_type = SMBIOS_PROCESSOR_TYPE_CENTRAL; @@ -214,32 +225,37 @@ static int smbios_write_type4(ulong *current, int handle) len = t->length + smbios_string_table_len(t->eos); *current += len; + unmap_sysmem(t); return len; } static int smbios_write_type32(ulong *current, int handle) { - struct smbios_type32 *t = (struct smbios_type32 *)*current; + struct smbios_type32 *t; int len = sizeof(struct smbios_type32); + t = map_sysmem(*current, len); memset(t, 0, sizeof(struct smbios_type32)); fill_smbios_header(t, SMBIOS_SYSTEM_BOOT_INFORMATION, len, handle); *current += len; + unmap_sysmem(t); return len; } static int smbios_write_type127(ulong *current, int handle) { - struct smbios_type127 *t = (struct smbios_type127 *)*current; + struct smbios_type127 *t; int len = sizeof(struct smbios_type127); + t = map_sysmem(*current, len); memset(t, 0, sizeof(struct smbios_type127)); fill_smbios_header(t, SMBIOS_END_OF_TABLE, len, handle); *current += len; + unmap_sysmem(t); return len; } @@ -257,6 +273,7 @@ static smbios_write_type smbios_write_funcs[] = { ulong write_smbios_table(ulong addr) { struct smbios_entry *se; + ulong table_addr; ulong tables; int len = 0; int max_struct_size = 0; @@ -268,7 +285,7 @@ ulong write_smbios_table(ulong addr) /* 16 byte align the table address */ addr = ALIGN(addr, 16); - se = (struct smbios_entry *)(uintptr_t)addr; + se = map_sysmem(addr, sizeof(struct smbios_entry)); memset(se, 0, sizeof(struct smbios_entry)); addr += sizeof(struct smbios_entry); @@ -290,7 +307,24 @@ ulong write_smbios_table(ulong addr) se->max_struct_size = max_struct_size; memcpy(se->intermediate_anchor, "_DMI_", 5); se->struct_table_length = len; - se->struct_table_address = tables; + + /* + * We must use a pointer here so things work correctly on sandbox. The + * user of this table is not aware of the mapping of addresses to + * sandbox's DRAM buffer. + */ + table_addr = (ulong)map_sysmem(tables, 0); + if (sizeof(table_addr) > sizeof(u32) && table_addr > (ulong)UINT_MAX) { + /* + * We need to put this >32-bit pointer into the table but the + * field is only 32 bits wide. + */ + printf("WARNING: SMBIOS table_address overflow %llx\n", + (unsigned long long)table_addr); + table_addr = 0; + } + se->struct_table_address = table_addr; + se->struct_count = handle; /* calculate checksums */ @@ -298,6 +332,7 @@ ulong write_smbios_table(ulong addr) isize = sizeof(struct smbios_entry) - SMBIOS_INTERMEDIATE_OFFSET; se->intermediate_checksum = table_compute_checksum(istart, isize); se->checksum = table_compute_checksum(se, sizeof(struct smbios_entry)); + unmap_sysmem(se); return addr; }