mirror of https://github.com/xemu-project/xemu.git
hw/loongarch: Init efi_initrd table
The efi_system_table adds a efi_initrd configuration table. Signed-off-by: Song Gao <gaosong@loongson.cn> Reviewed-by: Bibo Mao <maobibo@loongson.cn> Message-Id: <20240426091551.2397867-8-gaosong@loongson.cn>
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@ -15,6 +15,9 @@
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#include "sysemu/reset.h"
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#include "sysemu/qtest.h"
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ram_addr_t initrd_offset;
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uint64_t initrd_size;
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static const unsigned int slave_boot_code[] = {
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/* Configure reset ebase. */
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0x0400302c, /* csrwr $t0, LOONGARCH_CSR_EENTRY */
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@ -95,6 +98,21 @@ static void init_efi_boot_memmap(struct efi_system_table *systab,
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}
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}
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static void init_efi_initrd_table(struct efi_system_table *systab,
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void *p, void *start)
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{
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efi_guid_t tbl_guid = LINUX_EFI_INITRD_MEDIA_GUID;
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struct efi_initrd *initrd_table = p;
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/* efi_configuration_table 2 */
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guidcpy(&systab->tables[1].guid, &tbl_guid);
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systab->tables[1].table = (struct efi_configuration_table *)(p - start);
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systab->nr_tables = 2;
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initrd_table->base = initrd_offset;
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initrd_table->size = initrd_size;
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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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@ -118,6 +136,8 @@ static void init_systab(struct loongarch_boot_info *info, void *p, void *start)
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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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init_efi_initrd_table(systab, p, start);
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p += ROUND_UP(sizeof(struct efi_initrd), 64 * KiB);
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systab->tables = (struct efi_configuration_table *)(bp_tables_start - start);
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}
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@ -139,8 +159,7 @@ static uint64_t cpu_loongarch_virt_to_phys(void *opaque, uint64_t addr)
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static int64_t load_kernel_info(struct loongarch_boot_info *info)
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{
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uint64_t kernel_entry, kernel_low, kernel_high, initrd_size;
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ram_addr_t initrd_offset;
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uint64_t kernel_entry, kernel_low, kernel_high;
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ssize_t kernel_size;
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kernel_size = load_elf(info->kernel_filename, NULL,
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@ -30,6 +30,10 @@ typedef struct {
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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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#define LINUX_EFI_INITRD_MEDIA_GUID \
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EFI_GUID(0x5568e427, 0x68fc, 0x4f3d, 0xac, 0x74, \
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0xca, 0x55, 0x52, 0x31, 0xcc, 0x68)
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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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@ -83,6 +87,11 @@ struct efi_boot_memmap {
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efi_memory_desc_t map[32];
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};
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struct efi_initrd {
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uint64_t base;
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uint64_t size;
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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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