diff mbox series

[v3,4/5] EFI: Introduce the new AMD Memory Encryption GUID.

Message ID 13d4bdd5fc0cf9aa0ad81d43da975deb37f0d39c.1623174621.git.ashish.kalra@amd.com (mailing list archive)
State New, archived
Headers show
Series Add Guest API & Guest Kernel support for SEV live migration. | expand

Commit Message

Kalra, Ashish June 8, 2021, 6:06 p.m. UTC 
From: Ashish Kalra <ashish.kalra@amd.com>

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
feature.

Signed-off-by: Ashish Kalra <ashish.kalra@amd.com>
---
 include/linux/efi.h | 1 +
 1 file changed, 1 insertion(+)

Comments

Ard Biesheuvel June 10, 2021, 3:01 p.m. UTC | #1 
On Tue, 8 Jun 2021 at 20:07, Ashish Kalra <Ashish.Kalra@amd.com> wrote:
>
> From: Ashish Kalra <ashish.kalra@amd.com>
>
> 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
> feature.
>
> Signed-off-by: Ashish Kalra <ashish.kalra@amd.com>

Acked-by: Ard Biesheuvel <ardb@kernel.org>

> ---
>  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;
> --
> 2.17.1
>
diff mbox series

Patch

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;