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hw/loongarch: Init efi_boot_memmap table

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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>
This commit is contained in:
Song Gao 2024-04-26 17:15:40 +08:00
parent 4216baa90d
commit 252b8e6899
4 changed files with 79 additions and 9 deletions
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40
hw/loongarch/boot.c
View file

@ -63,8 +63,41 @@ static const unsigned int slave_boot_code[] = {
0x4c000020, /* jirl $zero, $ra,0 */
};
static inline void *guidcpy(void *dst, const void *src)
{
return memcpy(dst, src, sizeof(efi_guid_t));
}
static void init_efi_boot_memmap(struct efi_system_table *systab,
void *p, void *start)
{
unsigned i;
struct efi_boot_memmap *boot_memmap = p;
efi_guid_t tbl_guid = LINUX_EFI_BOOT_MEMMAP_GUID;
/* efi_configuration_table 1 */
guidcpy(&systab->tables[0].guid, &tbl_guid);
systab->tables[0].table = (struct efi_configuration_table *)(p - start);
systab->nr_tables = 1;
boot_memmap->desc_size = sizeof(efi_memory_desc_t);
boot_memmap->desc_ver = 1;
boot_memmap->map_size = 0;
efi_memory_desc_t *map = p + sizeof(struct efi_boot_memmap);
for (i = 0; i < memmap_entries; i++) {
map = (void *)boot_memmap + sizeof(*map);
map[i].type = memmap_table[i].type;
map[i].phys_addr = ROUND_UP(memmap_table[i].address, 64 * KiB);
map[i].num_pages = ROUND_DOWN(memmap_table[i].address +
memmap_table[i].length - map[i].phys_addr, 64 * KiB);
p += sizeof(efi_memory_desc_t);
}
}
static void init_systab(struct loongarch_boot_info *info, void *p, void *start)
{
void *bp_tables_start;
struct efi_system_table *systab = p;
info->a2 = p - start;
@ -80,6 +113,13 @@ static void init_systab(struct loongarch_boot_info *info, void *p, void *start)
p += ROUND_UP(sizeof(struct efi_system_table), 64 * KiB);
systab->tables = p;
bp_tables_start = p;
init_efi_boot_memmap(systab, p, start);
p += ROUND_UP(sizeof(struct efi_boot_memmap) +
sizeof(efi_memory_desc_t) * memmap_entries, 64 * KiB);
systab->tables = (struct efi_configuration_table *)(bp_tables_start - start);
}
static void init_cmdline(struct loongarch_boot_info *info, void *p, void *start)

11
hw/loongarch/virt.c
View file

@ -378,15 +378,8 @@ static void virt_powerdown_req(Notifier *notifier, void *opaque)
acpi_send_event(s->acpi_ged, ACPI_POWER_DOWN_STATUS);
}
struct memmap_entry {
uint64_t address;
uint64_t length;
uint32_t type;
uint32_t reserved;
};
static struct memmap_entry *memmap_table;
static unsigned memmap_entries;
struct memmap_entry *memmap_table;
unsigned memmap_entries;
static void memmap_add_entry(uint64_t address, uint64_t length, uint32_t type)
{