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charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 X-Rspam-User: X-Stat-Signature: xowhg3owui1kqo11e88d4y465zu7oc6e X-Rspamd-Queue-Id: 8DEC320008 X-Rspamd-Server: rspam03 X-HE-Tag: 1773756731-805680 X-HE-Meta: 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 AbeMG0lu 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 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: From: Patrick Roy =0A= =0A= x86 supports GUEST_MEMFD_FLAG_NO_DIRECT_MAP whenever direct map=0A= modifications are possible (which is always the case).=0A= =0A= Signed-off-by: Patrick Roy =0A= Reviewed-by: Ackerley Tng =0A= Reviewed-by: David Hildenbrand (Arm) =0A= Signed-off-by: Nikita Kalyazin =0A= ---=0A= arch/x86/include/asm/kvm_host.h | 6 ++++++=0A= arch/x86/kvm/x86.c | 5 +++++=0A= include/linux/kvm_host.h | 9 +++++++++=0A= 3 files changed, 20 insertions(+)=0A= =0A= diff --git a/arch/x86/include/asm/kvm_host.h b/arch/x86/include/asm/kvm_hos= t.h=0A= index 6e4e3ef9b8c7..171ce8b84137 100644=0A= --- a/arch/x86/include/asm/kvm_host.h=0A= +++ b/arch/x86/include/asm/kvm_host.h=0A= @@ -28,6 +28,7 @@=0A= #include =0A= #include =0A= #include =0A= +#include =0A= =0A= #include =0A= #include =0A= @@ -2504,4 +2505,9 @@ static inline bool kvm_arch_has_irq_bypass(void)=0A= return enable_device_posted_irqs;=0A= }=0A= =0A= +#ifdef CONFIG_KVM_GUEST_MEMFD=0A= +bool kvm_arch_gmem_supports_no_direct_map(struct kvm *kvm);=0A= +#define kvm_arch_gmem_supports_no_direct_map kvm_arch_gmem_supports_no_dir= ect_map=0A= +#endif /* CONFIG_KVM_GUEST_MEMFD */=0A= +=0A= #endif /* _ASM_X86_KVM_HOST_H */=0A= diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c=0A= index fd1c4a36b593..6a4dcf449a37 100644=0A= --- a/arch/x86/kvm/x86.c=0A= +++ b/arch/x86/kvm/x86.c=0A= @@ -14079,6 +14079,11 @@ void kvm_arch_gmem_invalidate(kvm_pfn_t start, kvm= _pfn_t end)=0A= kvm_x86_call(gmem_invalidate)(start, end);=0A= }=0A= #endif=0A= +=0A= +bool kvm_arch_gmem_supports_no_direct_map(struct kvm *kvm)=0A= +{=0A= + return can_set_direct_map() && kvm->arch.vm_type !=3D KVM_X86_TDX_VM;=0A= +}=0A= #endif=0A= =0A= int kvm_spec_ctrl_test_value(u64 value)=0A= diff --git a/include/linux/kvm_host.h b/include/linux/kvm_host.h=0A= index e8aa3d676c31..ce8c5fdf2752 100644=0A= --- a/include/linux/kvm_host.h=0A= +++ b/include/linux/kvm_host.h=0A= @@ -742,6 +742,15 @@ static inline u64 kvm_gmem_get_supported_flags(struct = kvm *kvm)=0A= }=0A= #endif=0A= =0A= +#ifdef CONFIG_KVM_GUEST_MEMFD=0A= +#ifndef kvm_arch_gmem_supports_no_direct_map=0A= +static inline bool kvm_arch_gmem_supports_no_direct_map(struct kvm *kvm)= =0A= +{=0A= + return false;=0A= +}=0A= +#endif=0A= +#endif /* CONFIG_KVM_GUEST_MEMFD */=0A= +=0A= #ifndef kvm_arch_has_readonly_mem=0A= static inline bool kvm_arch_has_readonly_mem(struct kvm *kvm)=0A= {=0A= -- =0A= 2.50.1=0A= =0A=