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-rw-r--r--hw/arm/virt.c7
-rw-r--r--hw/i386/fw_cfg.c4
-rw-r--r--hw/smbios/smbios.c124
-rw-r--r--include/hw/firmware/smbios.h14
-rw-r--r--qemu-options.hx30
5 files changed, 173 insertions, 6 deletions
diff --git a/hw/arm/virt.c b/hw/arm/virt.c
index 9f01d9041b..26a1e252fe 100644
--- a/hw/arm/virt.c
+++ b/hw/arm/virt.c
@@ -53,6 +53,7 @@
#include "sysemu/kvm.h"
#include "hw/loader.h"
#include "exec/address-spaces.h"
+#include "qapi/error.h"
#include "qemu/bitops.h"
#include "qemu/error-report.h"
#include "qemu/module.h"
@@ -1524,8 +1525,10 @@ static void virt_build_smbios(VirtMachineState *vms)
vmc->smbios_old_sys_ver ? "1.0" : mc->name, false,
true, SMBIOS_ENTRY_POINT_30);
- smbios_get_tables(MACHINE(vms), NULL, 0, &smbios_tables, &smbios_tables_len,
- &smbios_anchor, &smbios_anchor_len);
+ smbios_get_tables(MACHINE(vms), NULL, 0,
+ &smbios_tables, &smbios_tables_len,
+ &smbios_anchor, &smbios_anchor_len,
+ &error_fatal);
if (smbios_anchor) {
fw_cfg_add_file(vms->fw_cfg, "etc/smbios/smbios-tables",
diff --git a/hw/i386/fw_cfg.c b/hw/i386/fw_cfg.c
index e48a54fa36..4e68d5dea4 100644
--- a/hw/i386/fw_cfg.c
+++ b/hw/i386/fw_cfg.c
@@ -22,6 +22,7 @@
#include "hw/nvram/fw_cfg.h"
#include "e820_memory_layout.h"
#include "kvm/kvm_i386.h"
+#include "qapi/error.h"
#include CONFIG_DEVICES
struct hpet_fw_config hpet_cfg = {.count = UINT8_MAX};
@@ -78,7 +79,8 @@ void fw_cfg_build_smbios(MachineState *ms, FWCfgState *fw_cfg)
}
smbios_get_tables(ms, mem_array, array_count,
&smbios_tables, &smbios_tables_len,
- &smbios_anchor, &smbios_anchor_len);
+ &smbios_anchor, &smbios_anchor_len,
+ &error_fatal);
g_free(mem_array);
if (smbios_anchor) {
diff --git a/hw/smbios/smbios.c b/hw/smbios/smbios.c
index f22c4f5b73..7397e56737 100644
--- a/hw/smbios/smbios.c
+++ b/hw/smbios/smbios.c
@@ -27,6 +27,7 @@
#include "hw/firmware/smbios.h"
#include "hw/loader.h"
#include "hw/boards.h"
+#include "hw/pci/pci_bus.h"
#include "smbios_build.h"
/* legacy structures and constants for <= 2.0 machines */
@@ -118,6 +119,28 @@ static struct {
uint16_t speed;
} type17;
+static QEnumLookup type41_kind_lookup = {
+ .array = (const char *const[]) {
+ "other",
+ "unknown",
+ "video",
+ "scsi",
+ "ethernet",
+ "tokenring",
+ "sound",
+ "pata",
+ "sata",
+ "sas",
+ },
+ .size = 10
+};
+struct type41_instance {
+ const char *designation, *pcidev;
+ uint8_t instance, kind;
+ QTAILQ_ENTRY(type41_instance) next;
+};
+static QTAILQ_HEAD(, type41_instance) type41 = QTAILQ_HEAD_INITIALIZER(type41);
+
static QemuOptsList qemu_smbios_opts = {
.name = "smbios",
.head = QTAILQ_HEAD_INITIALIZER(qemu_smbios_opts.head),
@@ -358,6 +381,32 @@ static const QemuOptDesc qemu_smbios_type17_opts[] = {
{ /* end of list */ }
};
+static const QemuOptDesc qemu_smbios_type41_opts[] = {
+ {
+ .name = "type",
+ .type = QEMU_OPT_NUMBER,
+ .help = "SMBIOS element type",
+ },{
+ .name = "designation",
+ .type = QEMU_OPT_STRING,
+ .help = "reference designation string",
+ },{
+ .name = "kind",
+ .type = QEMU_OPT_STRING,
+ .help = "device type",
+ .def_value_str = "other",
+ },{
+ .name = "instance",
+ .type = QEMU_OPT_NUMBER,
+ .help = "device type instance",
+ },{
+ .name = "pcidev",
+ .type = QEMU_OPT_STRING,
+ .help = "PCI device",
+ },
+ { /* end of list */ }
+};
+
static void smbios_register_config(void)
{
qemu_add_opts(&qemu_smbios_opts);
@@ -773,6 +822,53 @@ static void smbios_build_type_32_table(void)
SMBIOS_BUILD_TABLE_POST;
}
+static void smbios_build_type_41_table(Error **errp)
+{
+ unsigned instance = 0;
+ struct type41_instance *t41;
+
+ QTAILQ_FOREACH(t41, &type41, next) {
+ SMBIOS_BUILD_TABLE_PRE(41, 0x2900 + instance, true);
+
+ SMBIOS_TABLE_SET_STR(41, reference_designation_str, t41->designation);
+ t->device_type = t41->kind;
+ t->device_type_instance = t41->instance;
+ t->segment_group_number = cpu_to_le16(0);
+ t->bus_number = 0;
+ t->device_number = 0;
+
+ if (t41->pcidev) {
+ PCIDevice *pdev = NULL;
+ int rc = pci_qdev_find_device(t41->pcidev, &pdev);
+ if (rc != 0) {
+ error_setg(errp,
+ "No PCI device %s for SMBIOS type 41 entry %s",
+ t41->pcidev, t41->designation);
+ return;
+ }
+ /*
+ * We only handle the case were the device is attached to
+ * the PCI root bus. The general case is more complex as
+ * bridges are enumerated later and the table would need
+ * to be updated at this moment.
+ */
+ if (!pci_bus_is_root(pci_get_bus(pdev))) {
+ error_setg(errp,
+ "Cannot create type 41 entry for PCI device %s: "
+ "not attached to the root bus",
+ t41->pcidev);
+ return;
+ }
+ t->segment_group_number = cpu_to_le16(0);
+ t->bus_number = pci_dev_bus_num(pdev);
+ t->device_number = pdev->devfn;
+ }
+
+ SMBIOS_BUILD_TABLE_POST;
+ instance++;
+ }
+}
+
static void smbios_build_type_127_table(void)
{
SMBIOS_BUILD_TABLE_PRE(127, 0x7F00, true); /* required */
@@ -883,7 +979,8 @@ void smbios_get_tables(MachineState *ms,
const struct smbios_phys_mem_area *mem_array,
const unsigned int mem_array_size,
uint8_t **tables, size_t *tables_len,
- uint8_t **anchor, size_t *anchor_len)
+ uint8_t **anchor, size_t *anchor_len,
+ Error **errp)
{
unsigned i, dimm_cnt;
@@ -928,6 +1025,7 @@ void smbios_get_tables(MachineState *ms,
smbios_build_type_32_table();
smbios_build_type_38_table();
+ smbios_build_type_41_table(errp);
smbios_build_type_127_table();
smbios_validate_table(ms);
@@ -1224,6 +1322,30 @@ void smbios_entry_add(QemuOpts *opts, Error **errp)
save_opt(&type17.part, opts, "part");
type17.speed = qemu_opt_get_number(opts, "speed", 0);
return;
+ case 41: {
+ struct type41_instance *t;
+ Error *local_err = NULL;
+
+ if (!qemu_opts_validate(opts, qemu_smbios_type41_opts, errp)) {
+ return;
+ }
+ t = g_new0(struct type41_instance, 1);
+ save_opt(&t->designation, opts, "designation");
+ t->kind = qapi_enum_parse(&type41_kind_lookup,
+ qemu_opt_get(opts, "kind"),
+ 0, &local_err) + 1;
+ t->kind |= 0x80; /* enabled */
+ if (local_err != NULL) {
+ error_propagate(errp, local_err);
+ g_free(t);
+ return;
+ }
+ t->instance = qemu_opt_get_number(opts, "instance", 1);
+ save_opt(&t->pcidev, opts, "pcidev");
+
+ QTAILQ_INSERT_TAIL(&type41, t, next);
+ return;
+ }
default:
error_setg(errp,
"Don't know how to build fields for SMBIOS type %ld",
diff --git a/include/hw/firmware/smbios.h b/include/hw/firmware/smbios.h
index 02a0ced0a0..5a0dd0c8cf 100644
--- a/include/hw/firmware/smbios.h
+++ b/include/hw/firmware/smbios.h
@@ -258,6 +258,17 @@ struct smbios_type_32 {
uint8_t boot_status;
} QEMU_PACKED;
+/* SMBIOS type 41 - Onboard Devices Extended Information */
+struct smbios_type_41 {
+ struct smbios_structure_header header;
+ uint8_t reference_designation_str;
+ uint8_t device_type;
+ uint8_t device_type_instance;
+ uint16_t segment_group_number;
+ uint8_t bus_number;
+ uint8_t device_number;
+} QEMU_PACKED;
+
/* SMBIOS type 127 -- End-of-table */
struct smbios_type_127 {
struct smbios_structure_header header;
@@ -273,5 +284,6 @@ void smbios_get_tables(MachineState *ms,
const struct smbios_phys_mem_area *mem_array,
const unsigned int mem_array_size,
uint8_t **tables, size_t *tables_len,
- uint8_t **anchor, size_t *anchor_len);
+ uint8_t **anchor, size_t *anchor_len,
+ Error **errp);
#endif /* QEMU_SMBIOS_H */
diff --git a/qemu-options.hx b/qemu-options.hx
index fd21002bd6..f71f716aa0 100644
--- a/qemu-options.hx
+++ b/qemu-options.hx
@@ -2370,7 +2370,9 @@ DEF("smbios", HAS_ARG, QEMU_OPTION_smbios,
" specify SMBIOS type 11 fields\n"
"-smbios type=17[,loc_pfx=str][,bank=str][,manufacturer=str][,serial=str]\n"
" [,asset=str][,part=str][,speed=%d]\n"
- " specify SMBIOS type 17 fields\n",
+ " specify SMBIOS type 17 fields\n"
+ "-smbios type=41[,designation=str][,kind=str][,instance=%d][,pcidev=str]\n"
+ " specify SMBIOS type 41 fields\n",
QEMU_ARCH_I386 | QEMU_ARCH_ARM)
SRST
``-smbios file=binary``
@@ -2432,6 +2434,32 @@ SRST
``-smbios type=17[,loc_pfx=str][,bank=str][,manufacturer=str][,serial=str][,asset=str][,part=str][,speed=%d]``
Specify SMBIOS type 17 fields
+
+``-smbios type=41[,designation=str][,kind=str][,instance=%d][,pcidev=str]``
+ Specify SMBIOS type 41 fields
+
+ This argument can be repeated multiple times. Its main use is to allow network interfaces be created
+ as ``enoX`` on Linux, with X being the instance number, instead of the name depending on the interface
+ position on the PCI bus.
+
+ Here is an example of use:
+
+ .. parsed-literal::
+
+ -netdev user,id=internet \\
+ -device virtio-net-pci,mac=50:54:00:00:00:42,netdev=internet,id=internet-dev \\
+ -smbios type=41,designation='Onboard LAN',instance=1,kind=ethernet,pcidev=internet-dev
+
+ In the guest OS, the device should then appear as ``eno1``:
+
+ ..parsed-literal::
+
+ $ ip -brief l
+ lo UNKNOWN 00:00:00:00:00:00 <LOOPBACK,UP,LOWER_UP>
+ eno1 UP 50:54:00:00:00:42 <BROADCAST,MULTICAST,UP,LOWER_UP>
+
+ Currently, the PCI device has to be attached to the root bus.
+
ERST
DEFHEADING()
generated by cgit v1.2.3 (git 2.26.2) at 2025-01-13 23:42:47 +0000