From 3c2a14ea81c77ae7973c1e436a32436a7e6d017b Mon Sep 17 00:00:00 2001 From: Bertrand Marquis Date: Mon, 13 Jun 2022 13:53:14 +0100 Subject: [PATCH] arm: Define kconfig symbols used by arm64 cpufeatures Define kconfig symbols which are used by arm64 cpufeatures to prevent using undefined symbols and rely on IS_ENABLED returning false. All the features related to those symbols are unsupported by Xen: - pointer authentication - sve - memory tagging - branch target identification Signed-off-by: Bertrand Marquis Acked-by: Julien Grall --- xen/arch/arm/Kconfig | 28 ++++++++++++++++++++++++++++ 1 file changed, 28 insertions(+) diff --git a/xen/arch/arm/Kconfig b/xen/arch/arm/Kconfig index a89a67802a..5900aa2efe 100644 --- a/xen/arch/arm/Kconfig +++ b/xen/arch/arm/Kconfig @@ -98,6 +98,34 @@ config HARDEN_BRANCH_PREDICTOR If unsure, say Y. +config ARM64_PTR_AUTH + def_bool n + depends on ARM64 + help + Pointer authentication support. + This feature is not supported in Xen. + +config ARM64_SVE + def_bool n + depends on ARM64 + help + Scalar Vector Extension support. + This feature is not supported in Xen. + +config ARM64_MTE + def_bool n + depends on ARM64 + help + Memory Tagging Extension support. + This feature is not supported in Xen. + +config ARM64_BTI + def_bool n + depends on ARM64 + help + Branch Target Identification support. + This feature is not supported in Xen. + config TEE bool "Enable TEE mediators support (UNSUPPORTED)" if UNSUPPORTED default n -- 2.30.2