Commit 9e8a3df3 authored by Suzuki K Poulose's avatar Suzuki K Poulose Committed by Will Deacon
Browse files

arm64: Enable EFI secret area Securityfs support 



Enable EFI COCO secrets support. Provide the ioremap_encrypted() support required
by the driver.

Cc: Sami Mujawar <sami.mujawar@arm.com>
Cc: Will Deacon <will@kernel.org>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Aneesh Kumar K.V <aneesh.kumar@kernel.org>
Cc: Steven Price <steven.price@arm.com>
Reviewed-by: default avatarGavin Shan <gshan@redhat.com>
Tested-by: default avatarSami Mujawar <sami.mujawar@arm.com>
Signed-off-by: default avatarSuzuki K Poulose <suzuki.poulose@arm.com>
Signed-off-by: default avatarWill Deacon <will@kernel.org>
parent fa84e534

arch/arm64/include/asm/io.h

+4 −0
Original line number Diff line number Diff line
@@ -274,6 +274,10 @@ int arm64_ioremap_prot_hook_register(const ioremap_prot_hook_t hook); 
#define ioremap_np(addr, size)	\

	ioremap_prot((addr), (size), __pgprot(PROT_DEVICE_nGnRnE))





#define ioremap_encrypted(addr, size)	\

	ioremap_prot((addr), (size), PAGE_KERNEL)



/*

 * io{read,write}{16,32,64}be() macros

 */

drivers/virt/coco/efi_secret/Kconfig

+1 −1
Original line number Diff line number Diff line 
# SPDX-License-Identifier: GPL-2.0-only

config EFI_SECRET

	tristate "EFI secret area securityfs support"

	depends on EFI && X86_64

	depends on EFI && (X86_64 || ARM64)

	select EFI_COCO_SECRET

	select SECURITYFS

	help