openkylin
/
qemu
mirror of https://gitee.com/openkylin/qemu.git
9
0
Fork 0
Code Issues Projects Releases Wiki Activity

target/i386: encrypt bios rom 

SEV requires that guest bios must be encrypted before booting the guest.

Cc: "Michael S. Tsirkin" <mst@redhat.com>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: Richard Henderson <rth@twiddle.net>
Cc: Eduardo Habkost <ehabkost@redhat.com>
Signed-off-by: Brijesh Singh <brijesh.singh@amd.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
Brijesh Singh 2018-03-08 06:48:50 -06:00 committed by Paolo Bonzini
parent b738d6300d
commit 952e0668c4
1 changed files with 13 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

13
hw/i386/pc_sysfw.c
View File

@ -113,6 +113,8 @@ static void pc_system_flash_init(MemoryRegion *rom_memory)
pflash_t *system_flash;
MemoryRegion *flash_mem;
char name[64];
void *flash_ptr;
int ret, flash_size;
sector_bits = 12;
sector_size = 1 << sector_bits;
@ -169,6 +171,17 @@ static void pc_system_flash_init(MemoryRegion *rom_memory)
if (unit == 0) {
flash_mem = pflash_cfi01_get_memory(system_flash);
pc_isa_bios_init(rom_memory, flash_mem, size);
/* Encrypt the pflash boot ROM */
if (kvm_memcrypt_enabled()) {
flash_ptr = memory_region_get_ram_ptr(flash_mem);
flash_size = memory_region_size(flash_mem);
ret = kvm_memcrypt_encrypt_data(flash_ptr, flash_size);
if (ret) {
error_report("failed to encrypt pflash rom");
exit(1);
}
}
}
}
}