Create a new -smbios option (x86-only) to allow binary SMBIOS entries to be passed through to the BIOS or modify the default values of individual fields of type 0 and 1 entries on the command line. Binary SMBIOS entries can be generated as follows: dmidecode -t 1 -u | grep $'^\t\t[^"]' | xargs -n1 | \ perl -lne 'printf "%c", hex($_)' > smbios_type_1.bin These can then be passed to the BIOS using this switch: -smbios file=smbios_type_1.bin Command line generation supports the following syntax: -smbios type=0[,vendor=str][,version=str][,date=str][,release=%d.%d] -smbios type=1[,manufacturer=str][,product=str][,version=str][,serial=str] [,uuid=$(uuidgen)][,sku=str][,family=str] For instance, to add a serial number to the type 1 table: -smbios type=1,serial=0123456789 Interface is extensible to support more fields/tables as needed. aliguori: remove texi formatting from help output Signed-off-by: Alex Williamson <alex.williamson@hp.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@7163 c046a42c-6fe2-441c-8c8c-71466251a162
471 lines
15 KiB
Diff
471 lines
15 KiB
Diff
qemu:bios: Load SMBIOS entries and files from qemu (Alex Williamson)
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Allow SMBIOS fields to be overridden and entries replaced by those
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read from qemu.
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Signed-off-by: Alex Williamson <alex.williamson@hp.com>
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Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
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diff --git a/bios/rombios32.c b/bios/rombios32.c
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index 7be4216..1a1ed64 100644
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--- a/bios/rombios32.c
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+++ b/bios/rombios32.c
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@@ -441,7 +441,6 @@ uint32_t cpuid_features;
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uint32_t cpuid_ext_features;
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unsigned long ram_size;
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uint64_t ram_end;
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-uint8_t bios_uuid[16];
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#ifdef BX_USE_EBDA_TABLES
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unsigned long ebda_cur_addr;
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#endif
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@@ -471,6 +470,7 @@ void wrmsr_smp(uint32_t index, uint64_t val)
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#define QEMU_CFG_UUID 0x02
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#define QEMU_CFG_ARCH_LOCAL 0x8000
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#define QEMU_CFG_ACPI_TABLES (QEMU_CFG_ARCH_LOCAL + 0)
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+#define QEMU_CFG_SMBIOS_ENTRIES (QEMU_CFG_ARCH_LOCAL + 1)
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int qemu_cfg_port;
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@@ -519,19 +519,17 @@ static int acpi_load_table(int i, uint32_t addr, uint16_t *len)
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qemu_cfg_read((uint8_t*)addr, *len);
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return 0;
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}
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-#endif
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-void uuid_probe(void)
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+static uint16_t smbios_entries(void)
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{
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-#ifdef BX_QEMU
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- if(qemu_cfg_port) {
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- qemu_cfg_select(QEMU_CFG_UUID);
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- qemu_cfg_read(bios_uuid, 16);
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- return;
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- }
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-#endif
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- memset(bios_uuid, 0, 16);
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+ uint16_t cnt;
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+
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+ qemu_cfg_select(QEMU_CFG_SMBIOS_ENTRIES);
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+ qemu_cfg_read((uint8_t*)&cnt, sizeof(cnt));
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+
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+ return cnt;
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}
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+#endif
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void cpu_probe(void)
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{
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@@ -1963,21 +1961,105 @@ smbios_entry_point_init(void *start,
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ep->intermediate_checksum = -sum;
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}
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+struct smbios_header {
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+ uint16_t length;
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+ uint8_t type;
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+} __attribute__((__packed__));
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+
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+struct smbios_field {
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+ struct smbios_header header;
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+ uint8_t type;
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+ uint16_t offset;
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+ uint8_t data[];
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+} __attribute__((__packed__));
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+
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+struct smbios_table {
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+ struct smbios_header header;
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+ uint8_t data[];
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+} __attribute__((__packed__));
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+
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+#define SMBIOS_FIELD_ENTRY 0
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+#define SMBIOS_TABLE_ENTRY 1
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+
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+static size_t
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+smbios_load_field(int type, size_t offset, void *addr)
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+{
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+#ifdef BX_QEMU
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+ int i;
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+
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+ for (i = smbios_entries(); i > 0; i--) {
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+ struct smbios_field field;
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+
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+ qemu_cfg_read((uint8_t *)&field, sizeof(struct smbios_header));
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+ field.header.length -= sizeof(struct smbios_header);
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+
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+ if (field.header.type != SMBIOS_FIELD_ENTRY) {
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+ while (field.header.length--)
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+ inb(QEMU_CFG_DATA_PORT);
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+ continue;
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+ }
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+
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+ qemu_cfg_read((uint8_t *)&field.type,
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+ sizeof(field) - sizeof(struct smbios_header));
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+ field.header.length -= sizeof(field) - sizeof(struct smbios_header);
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+
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+ if (field.type != type || field.offset != offset) {
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+ while (field.header.length--)
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+ inb(QEMU_CFG_DATA_PORT);
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+ continue;
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+ }
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+
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+ qemu_cfg_read(addr, field.header.length);
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+ return (size_t)field.header.length;
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+ }
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+#endif
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+ return 0;
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+}
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+
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+#define load_str_field_with_default(type, field, def) do { \
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+ size = smbios_load_field(type, offsetof(struct smbios_type_##type, \
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+ field), end); \
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+ if (size > 0) { \
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+ end += size; \
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+ } else { \
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+ memcpy(end, def, sizeof(def)); \
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+ end += sizeof(def); \
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+ } \
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+ p->field = ++str_index; \
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+} while (0)
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+
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+#define load_str_field_or_skip(type, field) do { \
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+ size = smbios_load_field(type, offsetof(struct smbios_type_##type, \
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+ field), end); \
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+ if (size > 0) { \
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+ end += size; \
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+ p->field = ++str_index; \
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+ } else { \
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+ p->field = 0; \
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+ } \
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+} while (0)
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+
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/* Type 0 -- BIOS Information */
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#define RELEASE_DATE_STR "01/01/2007"
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static void *
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-smbios_type_0_init(void *start)
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+smbios_init_type_0(void *start)
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{
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struct smbios_type_0 *p = (struct smbios_type_0 *)start;
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+ char *end = (char *)start + sizeof(struct smbios_type_0);
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+ size_t size;
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+ int str_index = 0;
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p->header.type = 0;
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p->header.length = sizeof(struct smbios_type_0);
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p->header.handle = 0;
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- p->vendor_str = 1;
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- p->bios_version_str = 1;
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+ load_str_field_with_default(0, vendor_str, BX_APPNAME);
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+ load_str_field_with_default(0, bios_version_str, BX_APPNAME);
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+
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p->bios_starting_address_segment = 0xe800;
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- p->bios_release_date_str = 2;
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+
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+ load_str_field_with_default(0, bios_release_date_str, RELEASE_DATE_STR);
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+
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p->bios_rom_size = 0; /* FIXME */
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memset(p->bios_characteristics, 0, 8);
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@@ -1985,50 +2067,66 @@ smbios_type_0_init(void *start)
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p->bios_characteristics_extension_bytes[0] = 0;
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p->bios_characteristics_extension_bytes[1] = 0;
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- p->system_bios_major_release = 1;
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- p->system_bios_minor_release = 0;
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+ if (!smbios_load_field(0, offsetof(struct smbios_type_0,
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+ system_bios_major_release),
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+ &p->system_bios_major_release))
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+ p->system_bios_major_release = 1;
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+
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+ if (!smbios_load_field(0, offsetof(struct smbios_type_0,
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+ system_bios_minor_release),
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+ &p->system_bios_minor_release))
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+ p->system_bios_minor_release = 0;
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+
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p->embedded_controller_major_release = 0xff;
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p->embedded_controller_minor_release = 0xff;
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- start += sizeof(struct smbios_type_0);
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- memcpy((char *)start, BX_APPNAME, sizeof(BX_APPNAME));
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- start += sizeof(BX_APPNAME);
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- memcpy((char *)start, RELEASE_DATE_STR, sizeof(RELEASE_DATE_STR));
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- start += sizeof(RELEASE_DATE_STR);
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- *((uint8_t *)start) = 0;
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+ *end = 0;
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+ end++;
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- return start+1;
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+ return end;
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}
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/* Type 1 -- System Information */
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static void *
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-smbios_type_1_init(void *start)
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+smbios_init_type_1(void *start)
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{
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struct smbios_type_1 *p = (struct smbios_type_1 *)start;
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+ char *end = (char *)start + sizeof(struct smbios_type_1);
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+ size_t size;
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+ int str_index = 0;
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+
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p->header.type = 1;
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p->header.length = sizeof(struct smbios_type_1);
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p->header.handle = 0x100;
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- p->manufacturer_str = 0;
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- p->product_name_str = 0;
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- p->version_str = 0;
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- p->serial_number_str = 0;
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+ load_str_field_or_skip(1, manufacturer_str);
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+ load_str_field_or_skip(1, product_name_str);
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+ load_str_field_or_skip(1, version_str);
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+ load_str_field_or_skip(1, serial_number_str);
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- memcpy(p->uuid, bios_uuid, 16);
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+ size = smbios_load_field(1, offsetof(struct smbios_type_1,
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+ uuid), &p->uuid);
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+ if (size == 0)
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+ memset(p->uuid, 0, 16);
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p->wake_up_type = 0x06; /* power switch */
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- p->sku_number_str = 0;
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- p->family_str = 0;
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- start += sizeof(struct smbios_type_1);
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- *((uint16_t *)start) = 0;
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+ load_str_field_or_skip(1, sku_number_str);
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+ load_str_field_or_skip(1, family_str);
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- return start+2;
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+ *end = 0;
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+ end++;
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+ if (!str_index) {
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+ *end = 0;
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+ end++;
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+ }
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+
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+ return end;
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}
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/* Type 3 -- System Enclosure */
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static void *
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-smbios_type_3_init(void *start)
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+smbios_init_type_3(void *start)
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{
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struct smbios_type_3 *p = (struct smbios_type_3 *)start;
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@@ -2058,7 +2156,7 @@ smbios_type_3_init(void *start)
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/* Type 4 -- Processor Information */
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static void *
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-smbios_type_4_init(void *start, unsigned int cpu_number)
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+smbios_init_type_4(void *start, unsigned int cpu_number)
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{
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struct smbios_type_4 *p = (struct smbios_type_4 *)start;
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@@ -2098,7 +2196,7 @@ smbios_type_4_init(void *start, unsigned int cpu_number)
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/* Type 16 -- Physical Memory Array */
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static void *
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-smbios_type_16_init(void *start, uint32_t memsize, int nr_mem_devs)
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+smbios_init_type_16(void *start, uint32_t memsize, int nr_mem_devs)
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{
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struct smbios_type_16 *p = (struct smbios_type_16*)start;
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@@ -2121,7 +2219,7 @@ smbios_type_16_init(void *start, uint32_t memsize, int nr_mem_devs)
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/* Type 17 -- Memory Device */
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static void *
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-smbios_type_17_init(void *start, uint32_t memory_size_mb, int instance)
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+smbios_init_type_17(void *start, uint32_t memory_size_mb, int instance)
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{
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struct smbios_type_17 *p = (struct smbios_type_17 *)start;
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@@ -2151,7 +2249,7 @@ smbios_type_17_init(void *start, uint32_t memory_size_mb, int instance)
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/* Type 19 -- Memory Array Mapped Address */
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static void *
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-smbios_type_19_init(void *start, uint32_t memory_size_mb, int instance)
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+smbios_init_type_19(void *start, uint32_t memory_size_mb, int instance)
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{
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struct smbios_type_19 *p = (struct smbios_type_19 *)start;
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@@ -2172,7 +2270,7 @@ smbios_type_19_init(void *start, uint32_t memory_size_mb, int instance)
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/* Type 20 -- Memory Device Mapped Address */
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static void *
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-smbios_type_20_init(void *start, uint32_t memory_size_mb, int instance)
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+smbios_init_type_20(void *start, uint32_t memory_size_mb, int instance)
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{
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struct smbios_type_20 *p = (struct smbios_type_20 *)start;
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@@ -2196,7 +2294,7 @@ smbios_type_20_init(void *start, uint32_t memory_size_mb, int instance)
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/* Type 32 -- System Boot Information */
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static void *
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-smbios_type_32_init(void *start)
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+smbios_init_type_32(void *start)
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{
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struct smbios_type_32 *p = (struct smbios_type_32 *)start;
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@@ -2214,7 +2312,7 @@ smbios_type_32_init(void *start)
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/* Type 127 -- End of Table */
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static void *
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-smbios_type_127_init(void *start)
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+smbios_init_type_127(void *start)
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{
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struct smbios_type_127 *p = (struct smbios_type_127 *)start;
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@@ -2228,6 +2326,78 @@ smbios_type_127_init(void *start)
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return start + 2;
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}
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+static int
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+smbios_load_external(int type, char **p, unsigned *nr_structs,
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+ unsigned *max_struct_size)
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+{
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+#ifdef BX_QEMU
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+ static uint64_t used_bitmap[4] = { 0 };
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+ char *start = *p;
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+ int i;
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+
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+ /* Check if we've already reported these tables */
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+ if (used_bitmap[(type >> 6) & 0x3] & (1ULL << (type & 0x3f)))
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+ return 1;
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+
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+ /* Don't introduce spurious end markers */
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+ if (type == 127)
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+ return 0;
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+
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+ for (i = smbios_entries(); i > 0; i--) {
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+ struct smbios_table table;
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+ struct smbios_structure_header *header = (void *)*p;
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+ int string;
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+
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+ qemu_cfg_read((uint8_t *)&table, sizeof(struct smbios_header));
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+ table.header.length -= sizeof(struct smbios_header);
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+
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+ if (table.header.type != SMBIOS_TABLE_ENTRY) {
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+ while (table.header.length--)
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+ inb(QEMU_CFG_DATA_PORT);
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+ continue;
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+ }
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+
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+ qemu_cfg_read((uint8_t *)*p, sizeof(struct smbios_structure_header));
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+ table.header.length -= sizeof(struct smbios_structure_header);
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+
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+ if (header->type != type) {
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+ while (table.header.length--)
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+ inb(QEMU_CFG_DATA_PORT);
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+ continue;
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+ }
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+
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+ *p += sizeof(struct smbios_structure_header);
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+
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+ /* Entries end with a double NULL char, if there's a string at
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+ * the end (length is greater than formatted length), the string
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+ * terminator provides the first NULL. */
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+ string = header->length < table.header.length +
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+ sizeof(struct smbios_structure_header);
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+
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+ /* Read the rest and terminate the entry */
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+ qemu_cfg_read((uint8_t *)*p, table.header.length);
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+ *p += table.header.length;
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+ *((uint8_t*)*p) = 0;
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+ (*p)++;
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+ if (!string) {
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+ *((uint8_t*)*p) = 0;
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+ (*p)++;
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+ }
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+
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+ (*nr_structs)++;
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+ if (*p - (char *)header > *max_struct_size)
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+ *max_struct_size = *p - (char *)header;
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+ }
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+
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+ /* Mark that we've reported on this type */
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+ used_bitmap[(type >> 6) & 0x3] |= (1ULL << (type & 0x3f));
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+
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+ return (start != *p);
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+#else /* !BX_QEMU */
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+ return 0;
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+#endif
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+}
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+
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void smbios_init(void)
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{
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unsigned cpu_num, nr_structs = 0, max_struct_size = 0;
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@@ -2246,34 +2416,39 @@ void smbios_init(void)
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p = (char *)start + sizeof(struct smbios_entry_point);
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-#define add_struct(fn) do{ \
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- q = (fn); \
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- nr_structs++; \
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- if ((q - p) > max_struct_size) \
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- max_struct_size = q - p; \
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- p = q; \
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-}while (0)
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-
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- add_struct(smbios_type_0_init(p));
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- add_struct(smbios_type_1_init(p));
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- add_struct(smbios_type_3_init(p));
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+#define add_struct(type, args...) do { \
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+ if (!smbios_load_external(type, &p, &nr_structs, &max_struct_size)) { \
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+ q = smbios_init_type_##type(args); \
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+ nr_structs++; \
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+ if ((q - p) > max_struct_size) \
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+ max_struct_size = q - p; \
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+ p = q; \
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+ } \
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+} while (0)
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+
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+ add_struct(0, p);
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+ add_struct(1, p);
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+ add_struct(3, p);
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for (cpu_num = 1; cpu_num <= smp_cpus; cpu_num++)
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- add_struct(smbios_type_4_init(p, cpu_num));
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+ add_struct(4, p, cpu_num);
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/* Each 'memory device' covers up to 16GB of address space. */
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nr_mem_devs = (memsize + 0x3fff) >> 14;
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- add_struct(smbios_type_16_init(p, memsize, nr_mem_devs));
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+ add_struct(16, p, memsize, nr_mem_devs);
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for ( i = 0; i < nr_mem_devs; i++ )
|
|
{
|
|
uint32_t dev_memsize = ((i == (nr_mem_devs - 1))
|
|
? (((memsize-1) & 0x3fff)+1) : 0x4000);
|
|
- add_struct(smbios_type_17_init(p, dev_memsize, i));
|
|
- add_struct(smbios_type_19_init(p, dev_memsize, i));
|
|
- add_struct(smbios_type_20_init(p, dev_memsize, i));
|
|
+ add_struct(17, p, dev_memsize, i);
|
|
+ add_struct(19, p, dev_memsize, i);
|
|
+ add_struct(20, p, dev_memsize, i);
|
|
}
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- add_struct(smbios_type_32_init(p));
|
|
- add_struct(smbios_type_127_init(p));
|
|
+ add_struct(32, p);
|
|
+ /* Add any remaining provided entries before the end marker */
|
|
+ for (i = 0; i < 256; i++)
|
|
+ smbios_load_external(i, &p, &nr_structs, &max_struct_size);
|
|
+ add_struct(127, p);
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|
|
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#undef add_struct
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|
|
|
@@ -2380,8 +2555,6 @@ void rombios32_init(uint32_t *s3_resume_vector, uint8_t *shutdown_flag)
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|
mptable_init();
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|
|
|
- uuid_probe();
|
|
-
|
|
smbios_init();
|
|
|
|
if (acpi_enabled)
|
|
|
|
|
|
--
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|
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