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[Qemu-devel] [PATCH v7 17/26] target/i386: encrypt bios rom
From: |
Brijesh Singh |
Subject: |
[Qemu-devel] [PATCH v7 17/26] target/i386: encrypt bios rom |
Date: |
Wed, 7 Feb 2018 10:06:29 -0600 |
SEV requires that guest bios must be encrypted before booting the guest.
Cc: "Michael S. Tsirkin" <address@hidden>
Cc: Paolo Bonzini <address@hidden>
Cc: Richard Henderson <address@hidden>
Cc: Eduardo Habkost <address@hidden>
Signed-off-by: Brijesh Singh <address@hidden>
---
hw/i386/pc_sysfw.c | 13 +++++++++++++
1 file changed, 13 insertions(+)
diff --git a/hw/i386/pc_sysfw.c b/hw/i386/pc_sysfw.c
index 6b183747fcea..8ddbbf74d330 100644
--- a/hw/i386/pc_sysfw.c
+++ b/hw/i386/pc_sysfw.c
@@ -112,6 +112,8 @@ 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;
@@ -168,6 +170,17 @@ 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);
+ }
+ }
}
}
}
--
2.14.3
- [Qemu-devel] [PATCH v7 06/26] machine: add -memory-encryption property, (continued)
- [Qemu-devel] [PATCH v7 06/26] machine: add -memory-encryption property, Brijesh Singh, 2018/02/07
- [Qemu-devel] [PATCH v7 07/26] kvm: update kvm.h to include memory encryption ioctls, Brijesh Singh, 2018/02/07
- [Qemu-devel] [PATCH v7 08/26] docs: add AMD Secure Encrypted Virtualization (SEV), Brijesh Singh, 2018/02/07
- [Qemu-devel] [PATCH v7 11/26] sev: register the guest memory range which may contain encrypted data, Brijesh Singh, 2018/02/07
- [Qemu-devel] [PATCH v7 09/26] accel: add Secure Encrypted Virtulization (SEV) object, Brijesh Singh, 2018/02/07
- [Qemu-devel] [PATCH v7 10/26] sev: add command to initialize the memory encryption context, Brijesh Singh, 2018/02/07
- [Qemu-devel] [PATCH v7 13/26] qmp: add query-sev command, Brijesh Singh, 2018/02/07
- [Qemu-devel] [PATCH v7 14/26] hmp: add 'info sev' command, Brijesh Singh, 2018/02/07
- [Qemu-devel] [PATCH v7 17/26] target/i386: encrypt bios rom,
Brijesh Singh <=
- [Qemu-devel] [PATCH v7 19/26] sev: Finalize the SEV guest launch flow, Brijesh Singh, 2018/02/07
- [Qemu-devel] [PATCH v7 22/26] target/i386: clear C-bit when walking SEV guest page table, Brijesh Singh, 2018/02/07
- [Qemu-devel] [PATCH v7 16/26] sev: add command to encrypt guest memory region, Brijesh Singh, 2018/02/07
- [Qemu-devel] [PATCH v7 15/26] sev: add command to create launch memory encryption context, Brijesh Singh, 2018/02/07
- [Qemu-devel] [PATCH v7 18/26] sev: add support to LAUNCH_MEASURE command, Brijesh Singh, 2018/02/07
- [Qemu-devel] [PATCH v7 20/26] hw: i386: set ram_debug_ops when memory encryption is enabled, Brijesh Singh, 2018/02/07
- [Qemu-devel] [PATCH v7 12/26] kvm: introduce memory encryption APIs, Brijesh Singh, 2018/02/07
- [Qemu-devel] [PATCH v7 21/26] sev: add debug encrypt and decrypt commands, Brijesh Singh, 2018/02/07