From: Zhiquan Li <zhiquan1.li@intel.com>
To: linux-sgx@vger.kernel.org, tony.luck@intel.com
Cc: jarkko@kernel.org, dave.hansen@linux.intel.com,
seanjc@google.com, kai.huang@intel.com, fan.du@intel.com,
zhiquan1.li@intel.com
Subject: [PATCH v2 1/4] x86/sgx: Move struct sgx_vepc definition to sgx.h
Date: Thu, 19 May 2022 11:11:17 +0800 [thread overview]
Message-ID: <20220519031117.245698-1-zhiquan1.li@intel.com> (raw)
Move struct sgx_vepc definition to sgx.h so that it can be used outside
of virt.c.
Signed-off-by: Zhiquan Li <zhiquan1.li@intel.com>
---
Changes since V1:
- Add documentation suggested by Jarkko.
---
arch/x86/kernel/cpu/sgx/sgx.h | 13 +++++++++++++
arch/x86/kernel/cpu/sgx/virt.c | 5 -----
2 files changed, 13 insertions(+), 5 deletions(-)
diff --git a/arch/x86/kernel/cpu/sgx/sgx.h b/arch/x86/kernel/cpu/sgx/sgx.h
index 0f17def9fe6f..ad3b455ed0da 100644
--- a/arch/x86/kernel/cpu/sgx/sgx.h
+++ b/arch/x86/kernel/cpu/sgx/sgx.h
@@ -101,4 +101,17 @@ static inline int __init sgx_vepc_init(void)
void sgx_update_lepubkeyhash(u64 *lepubkeyhash);
+/**
+ * struct sgx_vepc - SGX virtual EPC structure
+ * @page_array: the xarray of virtual EPC pages allocated to guest
+ * @lock: the mutex lock to protect a virtual EPC instance
+ *
+ * When hypervisor opens /dev/sgx_vepc a virtual EPC instance. The
+ * virtual EPC pages allocated to guest will be added to its page_array.
+ */
+struct sgx_vepc {
+ struct xarray page_array;
+ struct mutex lock;
+};
+
#endif /* _X86_SGX_H */
diff --git a/arch/x86/kernel/cpu/sgx/virt.c b/arch/x86/kernel/cpu/sgx/virt.c
index 6a77a14eee38..c9c8638b5dc4 100644
--- a/arch/x86/kernel/cpu/sgx/virt.c
+++ b/arch/x86/kernel/cpu/sgx/virt.c
@@ -18,11 +18,6 @@
#include "encls.h"
#include "sgx.h"
-struct sgx_vepc {
- struct xarray page_array;
- struct mutex lock;
-};
-
/*
* Temporary SECS pages that cannot be EREMOVE'd due to having child in other
* virtual EPC instances, and the lock to protect it.
--
2.25.1
next reply other threads:[~2022-05-19 3:10 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-05-19 3:11 Zhiquan Li [this message]
2022-05-19 21:30 ` [PATCH v2 1/4] x86/sgx: Move struct sgx_vepc definition to sgx.h Jarkko Sakkinen
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