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charset="utf-8" From: Grygorii Strashko According to the commit b66e28226dd9 ("x86/mem_sharing: gate enabling on cpu_has_vmx") the Xen memory sharing support is only possible on platforms with "Intel VT-x" (INTEL_VMX=3Dy) enabled. The same commit is also added runtime check for "cpu_has_vmx" in mem_sharing_control() which blocks access to XENMEM_sharing_ops if !cpu_has_vmx. Hence add dependency from INTEL_VMX for MEM_SHARING Kconfig option. Signed-off-by: Grygorii Strashko Reviewed-by: Jan Beulich --- It has took me a time (including digging deep in git history) to understand presence of this dependency, so this patch. Hope it helps other people and = they will not need waste their time digging. xen/arch/x86/hvm/Kconfig | 1 + 1 file changed, 1 insertion(+) diff --git a/xen/arch/x86/hvm/Kconfig b/xen/arch/x86/hvm/Kconfig index aed799fcb9c2..d62492d2043c 100644 --- a/xen/arch/x86/hvm/Kconfig +++ b/xen/arch/x86/hvm/Kconfig @@ -79,5 +79,6 @@ config MEM_PAGING =20 config MEM_SHARING bool "Xen memory sharing support (UNSUPPORTED)" if UNSUPPORTED + depends on INTEL_VMX =20 endif --=20 2.34.1