mirror of https://github.com/xemu-project/xemu.git
hw/loongarch: Init efi_boot_memmap table
The efi_system_table adds a efi_boot_memmap configuration table. Signed-off-by: Song Gao <gaosong@loongson.cn> Reviewed-by: Bibo Mao <maobibo@loongson.cn> Message-Id: <20240426091551.2397867-7-gaosong@loongson.cn>
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@ -63,8 +63,41 @@ static const unsigned int slave_boot_code[] = {
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0x4c000020, /* jirl $zero, $ra,0 */
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};
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static inline void *guidcpy(void *dst, const void *src)
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{
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return memcpy(dst, src, sizeof(efi_guid_t));
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}
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static void init_efi_boot_memmap(struct efi_system_table *systab,
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void *p, void *start)
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{
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unsigned i;
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struct efi_boot_memmap *boot_memmap = p;
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efi_guid_t tbl_guid = LINUX_EFI_BOOT_MEMMAP_GUID;
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/* efi_configuration_table 1 */
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guidcpy(&systab->tables[0].guid, &tbl_guid);
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systab->tables[0].table = (struct efi_configuration_table *)(p - start);
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systab->nr_tables = 1;
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boot_memmap->desc_size = sizeof(efi_memory_desc_t);
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boot_memmap->desc_ver = 1;
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boot_memmap->map_size = 0;
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efi_memory_desc_t *map = p + sizeof(struct efi_boot_memmap);
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for (i = 0; i < memmap_entries; i++) {
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map = (void *)boot_memmap + sizeof(*map);
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map[i].type = memmap_table[i].type;
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map[i].phys_addr = ROUND_UP(memmap_table[i].address, 64 * KiB);
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map[i].num_pages = ROUND_DOWN(memmap_table[i].address +
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memmap_table[i].length - map[i].phys_addr, 64 * KiB);
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p += sizeof(efi_memory_desc_t);
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}
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}
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static void init_systab(struct loongarch_boot_info *info, void *p, void *start)
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{
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void *bp_tables_start;
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struct efi_system_table *systab = p;
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info->a2 = p - start;
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@ -80,6 +113,13 @@ static void init_systab(struct loongarch_boot_info *info, void *p, void *start)
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p += ROUND_UP(sizeof(struct efi_system_table), 64 * KiB);
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systab->tables = p;
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bp_tables_start = p;
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init_efi_boot_memmap(systab, p, start);
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p += ROUND_UP(sizeof(struct efi_boot_memmap) +
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sizeof(efi_memory_desc_t) * memmap_entries, 64 * KiB);
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systab->tables = (struct efi_configuration_table *)(bp_tables_start - start);
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}
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static void init_cmdline(struct loongarch_boot_info *info, void *p, void *start)
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@ -378,15 +378,8 @@ static void virt_powerdown_req(Notifier *notifier, void *opaque)
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acpi_send_event(s->acpi_ged, ACPI_POWER_DOWN_STATUS);
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}
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struct memmap_entry {
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uint64_t address;
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uint64_t length;
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uint32_t type;
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uint32_t reserved;
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};
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static struct memmap_entry *memmap_table;
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static unsigned memmap_entries;
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struct memmap_entry *memmap_table;
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unsigned memmap_entries;
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static void memmap_add_entry(uint64_t address, uint64_t length, uint32_t type)
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{
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@ -21,6 +21,15 @@ typedef struct {
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uint8_t b[16];
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} efi_guid_t QEMU_ALIGNED(8);
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#define EFI_GUID(a, b, c, d...) (efi_guid_t){ { \
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(a) & 0xff, ((a) >> 8) & 0xff, ((a) >> 16) & 0xff, ((a) >> 24) & 0xff, \
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(b) & 0xff, ((b) >> 8) & 0xff, \
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(c) & 0xff, ((c) >> 8) & 0xff, d } }
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#define LINUX_EFI_BOOT_MEMMAP_GUID \
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EFI_GUID(0x800f683f, 0xd08b, 0x423a, 0xa2, 0x93, \
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0x96, 0x5c, 0x3c, 0x6f, 0xe2, 0xb4)
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struct efi_config_table {
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efi_guid_t guid;
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uint64_t *ptr;
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@ -56,6 +65,24 @@ struct efi_system_table {
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struct efi_configuration_table *tables;
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};
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typedef struct {
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uint32_t type;
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uint32_t pad;
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uint64_t phys_addr;
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uint64_t virt_addr;
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uint64_t num_pages;
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uint64_t attribute;
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} efi_memory_desc_t;
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struct efi_boot_memmap {
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uint64_t map_size;
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uint64_t desc_size;
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uint32_t desc_ver;
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uint64_t map_key;
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uint64_t buff_size;
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efi_memory_desc_t map[32];
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};
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struct loongarch_boot_info {
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uint64_t ram_size;
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const char *kernel_filename;
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@ -35,6 +35,16 @@
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#define COMMAND_LINE_SIZE 512
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extern struct memmap_entry *memmap_table;
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extern unsigned memmap_entries;
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struct memmap_entry {
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uint64_t address;
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uint64_t length;
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uint32_t type;
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uint32_t reserved;
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};
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struct LoongArchMachineState {
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/*< private >*/
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MachineState parent_obj;
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