Hi, On Thursday, March 20th, 2025 at 3:40 AM, Sergiy Kibrik <sergiy_kib...@epam.com> wrote:
> > > Introduce NESTEDHVM config option that controls nested virtualization in both > SVM & VMX code. The option is for reduction of dead code on systems that > aren't intended to run in nested mode. > > Signed-off-by: Sergiy Kibrik sergiy_kib...@epam.com > > --- > xen/arch/x86/Kconfig | 5 +++++ > xen/arch/x86/hvm/Makefile | 2 +- > xen/arch/x86/hvm/svm/Makefile | 2 +- > xen/arch/x86/hvm/svm/entry.S | 2 ++ > xen/arch/x86/hvm/svm/svm.c | 4 ++++ > xen/arch/x86/hvm/vmx/Makefile | 2 +- > xen/arch/x86/hvm/vmx/entry.S | 2 ++ > xen/arch/x86/hvm/vmx/vmcs.c | 8 +++++--- > xen/arch/x86/hvm/vmx/vmx.c | 10 +++++++++- > xen/arch/x86/include/asm/hvm/nestedhvm.h | 10 +++++++++- > 10 files changed, 39 insertions(+), 8 deletions(-) > > diff --git a/xen/arch/x86/Kconfig b/xen/arch/x86/Kconfig > index 6e41bc0fb4..bc140d8b77 100644 > --- a/xen/arch/x86/Kconfig > +++ b/xen/arch/x86/Kconfig > @@ -144,6 +144,11 @@ config INTEL_VMX > If your system includes a processor with Intel VT-x support, say Y. > If in doubt, say Y. > > +config NESTEDHVM > + bool "Support nested virtualization" if EXPERT > + depends on HVM > + default y There's dedicated Kconfig for HVM build-time configuration on staging at: arch/x86/hvm/Kconfig Suggest plumbing new knob there. Thanks, Denis
