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SN1PR12MB0158; 20:ffc/wr78XNSFGyjeFoalfDpHF3lp9hDH+DkB6r4Mj59xcVaF7pGIlNMmmHY+td735wZwINHBVdkyVx6seFbyyky350KrCUM0s5ucFPot+WlAvW9d35r+UC8vmM08w6UM/oU6R7xHL6q+RH7ECJ6QG2xrq5mf4BBC9yOs6ZDD256mxovRq7w1N2ttrMmJxafJhCEcTPcMHxKM2POBjjitbyA49CX9kSvs71cMpTNjyPlsagRcoxyoaFn5szkcYVxS X-OriginatorOrg: amd.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 07 Mar 2018 16:51:18.0261 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 861c31f1-b153-4482-c800-08d5844ba61a X-MS-Exchange-CrossTenant-FromEntityHeader: Hosted X-MS-Exchange-CrossTenant-Id: 3dd8961f-e488-4e60-8e11-a82d994e183d X-MS-Exchange-Transport-CrossTenantHeadersStamped: SN1PR12MB0158 X-detected-operating-system: by eggs.gnu.org: Windows 7 or 8 [fuzzy] X-Received-From: 104.47.42.85 Subject: [Qemu-devel] [PATCH v11 17/28] target/i386: encrypt bios rom X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Peter Maydell , Brijesh Singh , kvm@vger.kernel.org, "Michael S. Tsirkin" , Stefan Hajnoczi , Alexander Graf , "Edgar E. Iglesias" , Markus Armbruster , Bruce Rogers , Christian Borntraeger , Marcel Apfelbaum , Borislav Petkov , Thomas Lendacky , Eduardo Habkost , Richard Henderson , "Dr. David Alan Gilbert" , Alistair Francis , Cornelia Huck , Richard Henderson , Peter Crosthwaite , Paolo Bonzini Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail-DKIM: fail (Header signature does not verify) X-ZohoMail: RDKM_2 RSF_0 Z_629925259 SPT_0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" SEV requires that guest bios must be encrypted before booting the guest. Cc: "Michael S. Tsirkin" Cc: Paolo Bonzini Cc: Richard Henderson Cc: Eduardo Habkost Signed-off-by: Brijesh Singh --- 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_memo= ry) pflash_t *system_flash; MemoryRegion *flash_mem; char name[64]; + void *flash_ptr; + int ret, flash_size; =20 sector_bits =3D 12; sector_size =3D 1 << sector_bits; @@ -169,6 +171,17 @@ static void pc_system_flash_init(MemoryRegion *rom_mem= ory) if (unit =3D=3D 0) { flash_mem =3D 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 =3D memory_region_get_ram_ptr(flash_mem); + flash_size =3D memory_region_size(flash_mem); + ret =3D kvm_memcrypt_encrypt_data(flash_ptr, flash_size); + if (ret) { + error_report("failed to encrypt pflash rom"); + exit(1); + } + } } } } --=20 2.14.3