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From:   isaku.yamahata@intel.com
To:     kvm@vger.kernel.org, linux-kernel@vger.kernel.org
Cc:     isaku.yamahata@intel.com, isaku.yamahata@gmail.com,
        Paolo Bonzini <pbonzini@redhat.com>, erdemaktas@google.com,
        Sean Christopherson <seanjc@google.com>,
        Sagi Shahar <sagis@google.com>,
        Chao Peng <chao.p.peng@linux.intel.com>
Subject: [PATCH v9 025/105] KVM: TDX: Use private memory for TDX
Date:   Fri, 30 Sep 2022 03:17:19 -0700
Message-Id: <380563c808afef2260e601e3f761e050bd0ad964.1664530907.git.isaku.yamahata@intel.com>
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From: Chao Peng <chao.p.peng@linux.intel.com>

Override kvm_arch_has_private_mem() to use fd-based private memory.
Return true when a VM has a type of KVM_X86_TDX_VM.

Signed-off-by: Chao Peng <chao.p.peng@linux.intel.com>
Signed-off-by: Isaku Yamahata <isaku.yamahata@intel.com>
---
 arch/x86/kvm/x86.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
index e1c35cbe0b77..5006ff5d9f5e 100644
--- a/arch/x86/kvm/x86.c
+++ b/arch/x86/kvm/x86.c
@@ -13588,6 +13588,11 @@ int kvm_sev_es_string_io(struct kvm_vcpu *vcpu, unsigned int size,
 }
 EXPORT_SYMBOL_GPL(kvm_sev_es_string_io);
 
+bool kvm_arch_has_private_mem(struct kvm *kvm)
+{
+	return kvm->arch.vm_type == KVM_X86_TDX_VM;
+}
+
 EXPORT_TRACEPOINT_SYMBOL_GPL(kvm_entry);
 EXPORT_TRACEPOINT_SYMBOL_GPL(kvm_exit);
 EXPORT_TRACEPOINT_SYMBOL_GPL(kvm_fast_mmio);
-- 
2.25.1