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hw/loongarch: Add smbios support

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Add smbios support for loongarch virt machine, and put them into fw_cfg
table so that bios can parse them quickly. The weblink of smbios spec:
https://www.dmtf.org/dsp/DSP0134, the version is 3.6.0.

Acked-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Xiaojuan Yang <yangxiaojuan@loongson.cn>
Message-Id: <20220712083206.4187715-5-yangxiaojuan@loongson.cn>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
This commit is contained in:
Xiaojuan Yang 2022-07-12 16:32:04 +08:00 committed by Richard Henderson
parent fb1cd3a292
commit 3efa6fa1e6
3 changed files with 38 additions and 0 deletions
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1
hw/loongarch/Kconfig
View File

@ -14,3 +14,4 @@ config LOONGARCH_VIRT
select LOONGARCH_PCH_MSI
select LOONGARCH_EXTIOI
select LS7A_RTC
select SMBIOS

36
hw/loongarch/loongson3.c
View File

@ -30,11 +30,45 @@
#include "hw/misc/unimp.h"
#include "hw/loongarch/fw_cfg.h"
#include "target/loongarch/cpu.h"
#include "hw/firmware/smbios.h"
#define PM_BASE 0x10080000
#define PM_SIZE 0x100
#define PM_CTRL 0x10
static void virt_build_smbios(LoongArchMachineState *lams)
{
MachineState *ms = MACHINE(lams);
MachineClass *mc = MACHINE_GET_CLASS(lams);
uint8_t *smbios_tables, *smbios_anchor;
size_t smbios_tables_len, smbios_anchor_len;
const char *product = "QEMU Virtual Machine";
if (!lams->fw_cfg) {
return;
}
smbios_set_defaults("QEMU", product, mc->name, false,
true, SMBIOS_ENTRY_POINT_TYPE_64);
smbios_get_tables(ms, NULL, 0, &smbios_tables, &smbios_tables_len,
&smbios_anchor, &smbios_anchor_len, &error_fatal);
if (smbios_anchor) {
fw_cfg_add_file(lams->fw_cfg, "etc/smbios/smbios-tables",
smbios_tables, smbios_tables_len);
fw_cfg_add_file(lams->fw_cfg, "etc/smbios/smbios-anchor",
smbios_anchor, smbios_anchor_len);
}
}
static void virt_machine_done(Notifier *notifier, void *data)
{
LoongArchMachineState *lams = container_of(notifier,
LoongArchMachineState, machine_done);
virt_build_smbios(lams);
}
struct memmap_entry {
uint64_t address;
uint64_t length;
@ -512,6 +546,8 @@ static void loongarch_init(MachineState *machine)
}
/* Initialize the IO interrupt subsystem */
loongarch_irq_init(lams);
lams->machine_done.notify = virt_machine_done;
qemu_add_machine_init_done_notifier(&lams->machine_done);
}
static void loongarch_class_init(ObjectClass *oc, void *data)

1
include/hw/loongarch/virt.h
View File

@ -33,6 +33,7 @@ struct LoongArchMachineState {
bool bios_loaded;
/* State for other subsystems/APIs: */
FWCfgState *fw_cfg;
Notifier machine_done;
};
#define TYPE_LOONGARCH_MACHINE MACHINE_TYPE_NAME("virt")