On Fri, 19 Jun 2026 at 01:31, Ackerley Tng via B4 Relay <[email protected]> wrote: > > From: Sean Christopherson <[email protected]> > > When memory attributes become trackable in guest_memfd, the concept of > having private memory is no longer dependent on > CONFIG_KVM_VM_MEMORY_ATTRIBUTES. > > With this, on x86, kvm_arch_has_private_mem() is defined if some CoCo > platform support (or the testing CONFIG_KVM_SW_PROTECTED_VM) is compiled > in. > > Signed-off-by: Sean Christopherson <[email protected]> > Co-developed-by: Ackerley Tng <[email protected]> > Signed-off-by: Ackerley Tng <[email protected]>
Reviewed-by: Fuad Tabba <[email protected]> Cheers, /fuad > --- > arch/x86/include/asm/kvm_host.h | 4 +++- > include/linux/kvm_host.h | 2 +- > 2 files changed, 4 insertions(+), 2 deletions(-) > > diff --git a/arch/x86/include/asm/kvm_host.h b/arch/x86/include/asm/kvm_host.h > index 8e8eb8a5e8a6b..1bde67cf6eb0e 100644 > --- a/arch/x86/include/asm/kvm_host.h > +++ b/arch/x86/include/asm/kvm_host.h > @@ -2394,7 +2394,9 @@ void kvm_configure_mmu(bool enable_tdp, int > tdp_forced_root_level, > int tdp_max_root_level, int tdp_huge_page_level); > > > -#ifdef CONFIG_KVM_VM_MEMORY_ATTRIBUTES > +#if defined(CONFIG_KVM_SW_PROTECTED_VM) || \ > + defined(CONFIG_KVM_INTEL_TDX) || \ > + defined(CONFIG_KVM_AMD_SEV) > #define kvm_arch_has_private_mem(kvm) ((kvm)->arch.has_private_mem) > #endif > > diff --git a/include/linux/kvm_host.h b/include/linux/kvm_host.h > index 201d0f2143976..d370e834d619e 100644 > --- a/include/linux/kvm_host.h > +++ b/include/linux/kvm_host.h > @@ -722,7 +722,7 @@ static inline int kvm_arch_vcpu_memslots_id(struct > kvm_vcpu *vcpu) > } > #endif > > -#ifndef CONFIG_KVM_VM_MEMORY_ATTRIBUTES > +#ifndef kvm_arch_has_private_mem > static inline bool kvm_arch_has_private_mem(struct kvm *kvm) > { > return false; > > -- > 2.55.0.rc0.738.g0c8ab3ebcc-goog > >
