Re: [PATCH v3 2/3] efi: Reserve confidential computing secret area
From: Greg KH <gregkh@linuxfoundation.org>
Date: 2021-10-14 13:36:31
Also in:
linux-coco, linux-efi, lkml
On Thu, Oct 14, 2021 at 01:08:47PM +0000, Dov Murik wrote:
quoted hunk ↗ jump to hunk
When efi-stub copies an EFI-provided confidential computing (coco) secret area, reserve that memory block for future use within the kernel. Signed-off-by: Dov Murik <redacted> --- arch/x86/platform/efi/efi.c | 1 + drivers/firmware/efi/Makefile | 2 +- drivers/firmware/efi/coco.c | 41 +++++++++++++++++++++++++++++++++++ drivers/firmware/efi/efi.c | 4 ++++ include/linux/efi.h | 3 +++ 5 files changed, 50 insertions(+), 1 deletion(-) create mode 100644 drivers/firmware/efi/coco.cdiff --git a/arch/x86/platform/efi/efi.c b/arch/x86/platform/efi/efi.c index 147c30a81f15..35e082e5f603 100644 --- a/arch/x86/platform/efi/efi.c +++ b/arch/x86/platform/efi/efi.c@@ -93,6 +93,7 @@ static const unsigned long * const efi_tables[] = { #ifdef CONFIG_LOAD_UEFI_KEYS &efi.mokvar_table, #endif + &efi.coco_secret,
Shouldn't this depend on CONFIG_EFI_SECRET? Why build all of this code if that option is not enabled? thanks, greg k-h