On 7/9/23 22:05, Sathyanarayanan Kuppuswamy wrote:
Hi,
On 6/11/23 9:25 PM, Michael Roth wrote:
Currently CONFIG_HAS_CC_PLATFORM is a prereq for building anything in
arch/x86/coco, but that is generally only applicable for guest support.>
For SEV-SNP, helpers related purely to host support will also live in
arch/x86/coco. To allow for CoCo-related host support code in
arch/x86/coco, move that check down into the Makefile and check for it
specifically when needed.
I think CONFIG_HAS_CC_PLATFORM is not meant to be guest specific (otherwise,
Correct, it is used in bare-metal for SME support, so that needs to
continue to work.
Thanks,
Tom
we could have named it CONFIG_HAS_CC_GUEST). Will it create any issue if
we enable it in host?
Cc: Kirill A. Shutemov <kirill.shutemov@xxxxxxxxxxxxxxx>
Suggested-by: Tom Lendacky <thomas.lendacky@xxxxxxx>
Signed-off-by: Michael Roth <michael.roth@xxxxxxx>
---
arch/x86/Kbuild | 2 +-
arch/x86/coco/Makefile | 2 +-
2 files changed, 2 insertions(+), 2 deletions(-)
diff --git a/arch/x86/Kbuild b/arch/x86/Kbuild
index 5a83da703e87..1889cef48b58 100644
--- a/arch/x86/Kbuild
+++ b/arch/x86/Kbuild
@@ -1,5 +1,5 @@
# SPDX-License-Identifier: GPL-2.0
-obj-$(CONFIG_ARCH_HAS_CC_PLATFORM) += coco/
+obj-y += coco/
obj-y += entry/
diff --git a/arch/x86/coco/Makefile b/arch/x86/coco/Makefile
index c816acf78b6a..6aa52e719bf5 100644
--- a/arch/x86/coco/Makefile
+++ b/arch/x86/coco/Makefile
@@ -3,6 +3,6 @@ CFLAGS_REMOVE_core.o = -pg
KASAN_SANITIZE_core.o := n
CFLAGS_core.o += -fno-stack-protector
-obj-y += core.o
+obj-$(CONFIG_ARCH_HAS_CC_PLATFORM) += core.o
obj-$(CONFIG_INTEL_TDX_GUEST) += tdx/
