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[Qemu-devel] [PATCH v11 17/28] target/i386: encrypt bios rom
From: |
Brijesh Singh |
Subject: |
[Qemu-devel] [PATCH v11 17/28] target/i386: encrypt bios rom |
Date: |
Wed, 7 Mar 2018 10:50:27 -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 4325575e7d82..73ac783f2055 100644
--- a/hw/i386/pc_sysfw.c
+++ b/hw/i386/pc_sysfw.c
@@ -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);
+ }
+ }
}
}
}
--
2.14.3
- [Qemu-devel] [PATCH v11 10/28] include: add psp-sev.h header file, (continued)
- [Qemu-devel] [PATCH v11 10/28] include: add psp-sev.h header file, Brijesh Singh, 2018/03/07
- [Qemu-devel] [PATCH v11 15/28] sev/i386: add command to create launch memory encryption context, Brijesh Singh, 2018/03/07
- [Qemu-devel] [PATCH v11 20/28] hw/i386: set ram_debug_ops when memory encryption is enabled, Brijesh Singh, 2018/03/07
- [Qemu-devel] [PATCH v11 19/28] sev/i386: finalize the SEV guest launch flow, Brijesh Singh, 2018/03/07
- [Qemu-devel] [PATCH v11 16/28] sev/i386: add command to encrypt guest memory region, Brijesh Singh, 2018/03/07
- [Qemu-devel] [PATCH v11 18/28] sev/i386: add support to LAUNCH_MEASURE command, Brijesh Singh, 2018/03/07
- [Qemu-devel] [PATCH v11 23/28] qmp: add query-sev-launch-measure command, Brijesh Singh, 2018/03/07
- [Qemu-devel] [PATCH v11 11/28] sev/i386: add command to initialize the memory encryption context, Brijesh Singh, 2018/03/07
- [Qemu-devel] [PATCH v11 14/28] hmp: add 'info sev' command, Brijesh Singh, 2018/03/07
- [Qemu-devel] [PATCH v11 13/28] kvm: introduce memory encryption APIs, Brijesh Singh, 2018/03/07
- [Qemu-devel] [PATCH v11 17/28] target/i386: encrypt bios rom,
Brijesh Singh <=
- [Qemu-devel] [PATCH v11 21/28] sev/i386: add debug encrypt and decrypt commands, Brijesh Singh, 2018/03/07
[Qemu-devel] [PATCH v11 25/28] cpu/i386: populate CPUID 0x8000_001F when SEV is active, Brijesh Singh, 2018/03/07
[Qemu-devel] [PATCH v11 22/28] target/i386: clear C-bit when walking SEV guest page table, Brijesh Singh, 2018/03/07
[Qemu-devel] [PATCH v11 26/28] qmp: add query-sev-capabilities command, Brijesh Singh, 2018/03/07
[Qemu-devel] [PATCH v11 27/28] sev/i386: add sev_get_capabilities(), Brijesh Singh, 2018/03/07