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Date:   Tue, 12 Dec 2023 12:46:40 -0800
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Subject: [RFC PATCH v5 25/29] KVM: selftests: TDX: Add support for TDG.MEM.PAGE.ACCEPT
From:   Sagi Shahar <sagis@google.com>
To:     linux-kselftest@vger.kernel.org,
        Ackerley Tng <ackerleytng@google.com>,
        Ryan Afranji <afranji@google.com>,
        Erdem Aktas <erdemaktas@google.com>,
        Sagi Shahar <sagis@google.com>,
        Isaku Yamahata <isaku.yamahata@intel.com>
Cc:     Sean Christopherson <seanjc@google.com>,
        Paolo Bonzini <pbonzini@redhat.com>,
        Shuah Khan <shuah@kernel.org>, Peter Gonda <pgonda@google.com>,
        Haibo Xu <haibo1.xu@intel.com>,
        Chao Peng <chao.p.peng@linux.intel.com>,
        Vishal Annapurve <vannapurve@google.com>,
        Roger Wang <runanwang@google.com>,
        Vipin Sharma <vipinsh@google.com>, jmattson@google.com,
        dmatlack@google.com, linux-kernel@vger.kernel.org,
        kvm@vger.kernel.org, linux-mm@kvack.org
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From: Ackerley Tng <ackerleytng@google.com>

Signed-off-by: Ackerley Tng <ackerleytng@google.com>
Signed-off-by: Ryan Afranji <afranji@google.com>
Signed-off-by: Sagi Shahar <sagis@google.com>
---
 tools/testing/selftests/kvm/include/x86_64/tdx/tdx.h | 2 ++
 tools/testing/selftests/kvm/lib/x86_64/tdx/tdx.c     | 5 +++++
 2 files changed, 7 insertions(+)

diff --git a/tools/testing/selftests/kvm/include/x86_64/tdx/tdx.h b/tools/testing/selftests/kvm/include/x86_64/tdx/tdx.h
index db4cc62abb5d..b71bcea40b5c 100644
--- a/tools/testing/selftests/kvm/include/x86_64/tdx/tdx.h
+++ b/tools/testing/selftests/kvm/include/x86_64/tdx/tdx.h
@@ -6,6 +6,7 @@
 #include "kvm_util_base.h"
 
 #define TDG_VP_INFO 1
+#define TDG_MEM_PAGE_ACCEPT 6
 
 #define TDG_VP_VMCALL_GET_TD_VM_CALL_INFO 0x10000
 #define TDG_VP_VMCALL_MAP_GPA 0x10001
@@ -38,5 +39,6 @@ uint64_t tdg_vp_info(uint64_t *rcx, uint64_t *rdx,
 		     uint64_t *r8, uint64_t *r9,
 		     uint64_t *r10, uint64_t *r11);
 uint64_t tdg_vp_vmcall_map_gpa(uint64_t address, uint64_t size, uint64_t *data_out);
+uint64_t tdg_mem_page_accept(uint64_t gpa, uint8_t level);
 
 #endif // SELFTEST_TDX_TDX_H
diff --git a/tools/testing/selftests/kvm/lib/x86_64/tdx/tdx.c b/tools/testing/selftests/kvm/lib/x86_64/tdx/tdx.c
index 061a5c0bef34..d8c4ab635c06 100644
--- a/tools/testing/selftests/kvm/lib/x86_64/tdx/tdx.c
+++ b/tools/testing/selftests/kvm/lib/x86_64/tdx/tdx.c
@@ -236,3 +236,8 @@ uint64_t tdg_vp_vmcall_map_gpa(uint64_t address, uint64_t size, uint64_t *data_o
 		*data_out = args.r11;
 	return ret;
 }
+
+uint64_t tdg_mem_page_accept(uint64_t gpa, uint8_t level)
+{
+	return __tdx_module_call(TDG_MEM_PAGE_ACCEPT, gpa | level, 0, 0, 0, NULL);
+}
-- 
2.43.0.472.g3155946c3a-goog