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From:   Kristen Carlson Accardi <kristen@linux.intel.com>
To:     linux-kernel@vger.kernel.org, linux-sgx@vger.kernel.org,
        cgroups@vger.kernel.org, Jarkko Sakkinen <jarkko@kernel.org>,
        Dave Hansen <dave.hansen@linux.intel.com>,
        Thomas Gleixner <tglx@linutronix.de>,
        Ingo Molnar <mingo@redhat.com>, Borislav Petkov <bp@alien8.de>,
        x86@kernel.org, "H. Peter Anvin" <hpa@zytor.com>
Cc:     Kristen Carlson Accardi <kristen@linux.intel.com>,
        Sean Christopherson <seanjc@google.com>
Subject: [RFC PATCH 02/20] x86/sgx: Store EPC page owner as a 'void *' to handle multiple users
Date:   Thu, 22 Sep 2022 10:10:39 -0700
Message-Id: <20220922171057.1236139-3-kristen@linux.intel.com>
In-Reply-To: <20220922171057.1236139-1-kristen@linux.intel.com>
References: <20220922171057.1236139-1-kristen@linux.intel.com>
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From: Sean Christopherson <sean.j.christopherson@intel.com>

A future patch will use the owner field for either a pointer to
a struct sgx_encl, or a struct sgx_encl_page.

Signed-off-by: Sean Christopherson <sean.j.christopherson@intel.com>
Signed-off-by: Kristen Carlson Accardi <kristen@linux.intel.com>
Cc: Sean Christopherson <seanjc@google.com>
---
 arch/x86/kernel/cpu/sgx/sgx.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/x86/kernel/cpu/sgx/sgx.h b/arch/x86/kernel/cpu/sgx/sgx.h
index 0f2020653fba..5a7e858a8f98 100644
--- a/arch/x86/kernel/cpu/sgx/sgx.h
+++ b/arch/x86/kernel/cpu/sgx/sgx.h
@@ -33,7 +33,7 @@ struct sgx_epc_page {
 	unsigned int section;
 	u16 flags;
 	u16 poison;
-	struct sgx_encl_page *owner;
+	void *owner;
 	struct list_head list;
 };
 
-- 
2.37.3