linux-kernel - [tip: x86/tdx] x86/virt/tdx: Disable TDX host support when kexec is enabled

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Message-ID: <170206206183.398.10384727190560172183.tip-bot2@tip-bot2>
Date:   Fri, 08 Dec 2023 19:01:01 -0000
From:   "tip-bot2 for Dave Hansen" <tip-bot2@...utronix.de>
To:     linux-tip-commits@...r.kernel.org
Cc:     Dave Hansen <dave.hansen@...ux.intel.com>, x86@...nel.org,
        linux-kernel@...r.kernel.org
Subject: [tip: x86/tdx] x86/virt/tdx: Disable TDX host support when kexec is enabled

The following commit has been merged into the x86/tdx branch of tip:

Commit-ID:     1363d55c108dfb6280f55a7f5b149017879fe23b
Gitweb:        https://git.kernel.org/tip/1363d55c108dfb6280f55a7f5b149017879fe23b
Author:        Dave Hansen <dave.hansen@...ux.intel.com>
AuthorDate:    Fri, 08 Dec 2023 09:07:40 -08:00
Committer:     Dave Hansen <dave.hansen@...ux.intel.com>
CommitterDate: Fri, 08 Dec 2023 10:17:32 -08:00

x86/virt/tdx: Disable TDX host support when kexec is enabled

TDX host support currently lacks the ability to handle kexec.  Disable TDX
when kexec is enabled.

Signed-off-by: Dave Hansen <dave.hansen@...ux.intel.com>
Link: https://lore.kernel.org/all/20231208170740.53979-20-dave.hansen%40intel.com
---
 arch/x86/Kconfig | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index e255d8a..01cdb16 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -1973,6 +1973,7 @@ config INTEL_TDX_HOST
 	depends on X86_X2APIC
 	select ARCH_KEEP_MEMBLOCK
 	depends on CONTIG_ALLOC
+	depends on !KEXEC_CORE
 	help
 	  Intel Trust Domain Extensions (TDX) protects guest VMs from malicious
 	  host and certain physical attacks.  This option enables necessary TDX