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* [PATCH v6 3/5] EFI: Introduce the new AMD Memory Encryption GUID.
       [not found] <>
@ 2021-08-24 11:06 ` Ashish Kalra
  0 siblings, 0 replies; only message in thread
From: Ashish Kalra @ 2021-08-24 11:06 UTC (permalink / raw)
  To: pbonzini
  Cc: seanjc, tglx, mingo, hpa, joro, bp, Thomas.Lendacky, x86, kvm,
	linux-kernel, srutherford, brijesh.singh, dovmurik, tobin, jejb,
	dgilbert, linux-efi

From: Ashish Kalra <>

Introduce a new AMD Memory Encryption GUID which is currently
used for defining a new UEFI environment variable which indicates
UEFI/OVMF support for the SEV live migration feature. This variable
is setup when UEFI/OVMF detects host/hypervisor support for SEV
live migration and later this variable is read by the kernel using
EFI runtime services to verify if OVMF supports the live migration

Signed-off-by: Ashish Kalra <>
Acked-by: Ard Biesheuvel <>
 include/linux/efi.h | 1 +
 1 file changed, 1 insertion(+)

diff --git a/include/linux/efi.h b/include/linux/efi.h
index 6b5d36babfcc..dbd39b20e034 100644
--- a/include/linux/efi.h
+++ b/include/linux/efi.h
@@ -362,6 +362,7 @@ void efi_native_runtime_setup(void);
 /* OEM GUIDs */
 #define DELLEMC_EFI_RCI2_TABLE_GUID		EFI_GUID(0x2d9f28a2, 0xa886, 0x456a,  0x97, 0xa8, 0xf1, 0x1e, 0xf2, 0x4f, 0xf4, 0x55)
+#define AMD_SEV_MEM_ENCRYPT_GUID		EFI_GUID(0x0cf29b71, 0x9e51, 0x433a,  0xa3, 0xb7, 0x81, 0xf3, 0xab, 0x16, 0xb8, 0x75)
 typedef struct {
 	efi_guid_t guid;

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