lkml.org 
[lkml]   [2023]   [Oct]   [17]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Subject[PATCH v14 03/23] x86/virt/tdx: Make INTEL_TDX_HOST depend on X86_X2APIC
Date
TDX capable platforms are locked to X2APIC mode and cannot fall back to
the legacy xAPIC mode when TDX is enabled by the BIOS. TDX host support
requires x2APIC. Make INTEL_TDX_HOST depend on X86_X2APIC.

Link: https://lore.kernel.org/lkml/ba80b303-31bf-d44a-b05d-5c0f83038798@intel.com/
Signed-off-by: Kai Huang <kai.huang@intel.com>
Reviewed-by: Dave Hansen <dave.hansen@linux.intel.com>
Reviewed-by: David Hildenbrand <david@redhat.com>
Reviewed-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
---
arch/x86/Kconfig | 1 +
1 file changed, 1 insertion(+)

diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index 3b3594f96330..a70f3f205969 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -1944,6 +1944,7 @@ config INTEL_TDX_HOST
depends on CPU_SUP_INTEL
depends on X86_64
depends on KVM_INTEL
+ depends on X86_X2APIC
help
Intel Trust Domain Extensions (TDX) protects guest VMs from malicious
host and certain physical attacks. This option enables necessary TDX
--
2.41.0
\
 
 \ /
  Last update: 2023-10-17 12:15    [W:0.324 / U:0.068 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site