CONFIG_UNACCEPTED_MEMORY:

General informations

The Linux kernel configuration item CONFIG_UNACCEPTED_MEMORY:

• prompt:
• type: bool
• depends on: CONFIG_EFI_STUB
• defined in drivers/firmware/efi/Kconfig
• found in Linux kernels: 6.5–6.8, 6.9-rc+HEAD

Help text

Some Virtual Machine platforms, such as Intel TDX, require some memory to be "accepted" by the guest before it can be used. This mechanism helps prevent malicious hosts from making changes to guest memory.

UEFI specification v2.9 introduced EFI_UNACCEPTED_MEMORY memory type.

This option adds support for unaccepted memory and makes such memory usable by the kernel.

Hardware

LKDDb

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Sources

This page is automaticly generated with free (libre, open) software lkddb(see lkddb-sources).

The data is retrived from:

• Linux kernel
• Linux Kernel Driver DataBase (LKDDb)

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