[v6,05/17] hw/loongarch: Init efi_system_table

Add init_systab and set boot_info->a2

Signed-off-by: Song Gao <gaosong@loongson.cn>
Message-Id: <20240301093839.663947-6-gaosong@loongson.cn>
---
 hw/loongarch/boot.c         | 22 +++++++++++++++++
 include/hw/loongarch/boot.h | 48 +++++++++++++++++++++++++++++++++++++
 2 files changed, 70 insertions(+)

On 2024/3/8 上午12:48, Song Gao wrote:
> Add init_systab and set boot_info->a2
> 
> Signed-off-by: Song Gao <gaosong@loongson.cn>
> Message-Id: <20240301093839.663947-6-gaosong@loongson.cn>
> ---
>   hw/loongarch/boot.c         | 22 +++++++++++++++++
>   include/hw/loongarch/boot.h | 48 +++++++++++++++++++++++++++++++++++++
>   2 files changed, 70 insertions(+)
> 
> diff --git a/hw/loongarch/boot.c b/hw/loongarch/boot.c
> index ca65dfde07..1e31e2a59f 100644
> --- a/hw/loongarch/boot.c
> +++ b/hw/loongarch/boot.c
> @@ -63,6 +63,25 @@ static const unsigned int slave_boot_code[] = {
>       0x4c000020,   /* jirl       $r0,$r1,0           */
>   };
>   
> +static void init_systab(struct loongarch_boot_info *info, void *p, void *start)
> +{
> +    struct efi_system_table *systab = p;
> +
> +    info->a2 = (uint64_t)p - (uint64_t)start;
> +
> +    systab->hdr.signature = EFI_SYSTEM_TABLE_SIGNATURE;
> +    systab->hdr.revision = EFI_SPECIFICATION_VERSION;
> +    systab->hdr.revision = sizeof(struct efi_system_table),
> +    systab->fw_revision = FW_VERSION << 16 | FW_PATCHLEVEL << 8;
> +    systab->runtime = 0;
> +    systab->boottime = 0;
> +    systab->nr_tables = 0;
> +
> +    p += ROUND_UP(sizeof(struct efi_system_table), 64);
> +
> +    systab->tables = p;
> +}
> +
>   static void init_cmdline(struct loongarch_boot_info *info, void *p, void *start)
>   {
>       hwaddr cmdline_addr = (hwaddr)p - (hwaddr)start;
> @@ -135,6 +154,7 @@ static void reset_load_elf(void *opaque)
>   	if (cpu == LOONGARCH_CPU(first_cpu)) {
>               env->gpr[4] = env->boot_info->a0;
>               env->gpr[5] = env->boot_info->a1;
> +            env->gpr[6] = env->boot_info->a2;
>           }
>           cpu_set_pc(CPU(cpu), env->elf_address);
>       }
> @@ -182,6 +202,8 @@ static void init_boot_rom(struct loongarch_boot_info *info, void *p)
>   
>       init_cmdline(info, p, start);
>       p += COMMAND_LINE_SIZE;
> +
> +    init_systab(info, p, start);
>   }
>   
>   static void loongarch_direct_kernel_boot(struct loongarch_boot_info *info)
> diff --git a/include/hw/loongarch/boot.h b/include/hw/loongarch/boot.h
> index 3275c1e295..65ad406f02 100644
> --- a/include/hw/loongarch/boot.h
> +++ b/include/hw/loongarch/boot.h
> @@ -8,6 +8,54 @@
>   #ifndef HW_LOONGARCH_BOOT_H
>   #define HW_LOONGARCH_BOOT_H
>   
> +/* UEFI 2.10 */
> +#define EFI_SYSTEM_TABLE_SIGNATURE       0x5453595320494249
> +#define EFI_2_100_SYSTEM_TABLE_REVISION  ((2<<16) | (100))
> +#define EFI_SPECIFICATION_VERSION        EFI_SYSTEM_TABLE_REVISION
> +#define EFI_SYSTEM_TABLE_REVISION        EFI_2_100_SYSTEM_TABLE_REVISION
> +
> +#define FW_VERSION 0x1
> +#define FW_PATCHLEVEL 0x0
> +
> +typedef struct {
> +    uint8_t b[16];
> +} efi_guid_t __attribute__((aligned(8)));
> +
> +struct efi_config_table {
> +    efi_guid_t guid;
> +    uint64_t *ptr;
> +    const char name[16];
> +};
> +
> +typedef struct {
> +    uint64_t signature;
> +    uint32_t revision;
> +    uint32_t headersize;
> +    uint32_t crc32;
> +    uint32_t reserved;
> +} efi_table_hdr_t;
> +
> +struct efi_configuration_table {
> +    efi_guid_t guid;
> +    void *table;
> +};
> +
> +struct efi_system_table {
> +    efi_table_hdr_t hdr;
> +    uint64_t fw_vendor;        /* physical addr of CHAR16 vendor string */
> +    uint32_t fw_revision;
> +    uint64_t con_in_handle;
> +    uint64_t *con_in;
> +    uint64_t con_out_handle;
> +    uint64_t *con_out;
> +    uint64_t stderr_handle;
> +    uint64_t stderr_placeholder;
> +    uint64_t *runtime;
> +    uint64_t *boottime;
> +    uint64_t nr_tables;
> +    struct efi_configuration_table *tables;
> +};
> +
>   struct loongarch_boot_info {
>       uint64_t ram_size;
>       const char *kernel_filename;
> 
Reviewed-by: Bibo Mao <maobibo@loongson.cn>

On 7/3/24 17:48, Song Gao wrote:
> Add init_systab and set boot_info->a2
> 
> Signed-off-by: Song Gao <gaosong@loongson.cn>
> Message-Id: <20240301093839.663947-6-gaosong@loongson.cn>
> ---
>   hw/loongarch/boot.c         | 22 +++++++++++++++++
>   include/hw/loongarch/boot.h | 48 +++++++++++++++++++++++++++++++++++++
>   2 files changed, 70 insertions(+)


> diff --git a/include/hw/loongarch/boot.h b/include/hw/loongarch/boot.h
> index 3275c1e295..65ad406f02 100644
> --- a/include/hw/loongarch/boot.h
> +++ b/include/hw/loongarch/boot.h
> @@ -8,6 +8,54 @@
>   #ifndef HW_LOONGARCH_BOOT_H
>   #define HW_LOONGARCH_BOOT_H
>   
> +/* UEFI 2.10 */
> +#define EFI_SYSTEM_TABLE_SIGNATURE       0x5453595320494249
> +#define EFI_2_100_SYSTEM_TABLE_REVISION  ((2<<16) | (100))
> +#define EFI_SPECIFICATION_VERSION        EFI_SYSTEM_TABLE_REVISION
> +#define EFI_SYSTEM_TABLE_REVISION        EFI_2_100_SYSTEM_TABLE_REVISION
> +
> +#define FW_VERSION 0x1
> +#define FW_PATCHLEVEL 0x0
> +
> +typedef struct {
> +    uint8_t b[16];
> +} efi_guid_t __attribute__((aligned(8)));

QEMU_ALIGNED(8)