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From: Reinette Chatre <reinette.chatre@intel.com>
To: dave.hansen@linux.intel.com, jarkko@kernel.org,
	tglx@linutronix.de, bp@alien8.de, luto@kernel.org,
	mingo@redhat.com, linux-sgx@vger.kernel.org, x86@kernel.org
Cc: seanjc@google.com, kai.huang@intel.com, cathy.zhang@intel.com,
	cedric.xing@intel.com, haitao.huang@intel.com,
	mark.shanahan@intel.com, hpa@zytor.com,
	linux-kernel@vger.kernel.org
Subject: [PATCH V3 12/30] x86/sgx: Export sgx_encl_{grow,shrink}()
Date: Mon,  4 Apr 2022 09:49:20 -0700	[thread overview]
Message-ID: <97f03b1ad11ff70839bdf239609a62957c804523.1648847675.git.reinette.chatre@intel.com> (raw)
In-Reply-To: <cover.1648847675.git.reinette.chatre@intel.com>

In order to use sgx_encl_{grow,shrink}() in the page augmentation code
located in encl.c, export these functions.

Suggested-by: Jarkko Sakkinen <jarkko@kernel.org>
Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
---
Changes since V2:
- New patch.

 arch/x86/kernel/cpu/sgx/encl.h  | 2 ++
 arch/x86/kernel/cpu/sgx/ioctl.c | 4 ++--
 2 files changed, 4 insertions(+), 2 deletions(-)

diff --git a/arch/x86/kernel/cpu/sgx/encl.h b/arch/x86/kernel/cpu/sgx/encl.h
index 07abfc70c8e3..9d673d9531f0 100644
--- a/arch/x86/kernel/cpu/sgx/encl.h
+++ b/arch/x86/kernel/cpu/sgx/encl.h
@@ -120,5 +120,7 @@ bool sgx_va_page_full(struct sgx_va_page *va_page);
 void sgx_encl_free_epc_page(struct sgx_epc_page *page);
 struct sgx_encl_page *sgx_encl_load_page(struct sgx_encl *encl,
 					 unsigned long addr);
+struct sgx_va_page *sgx_encl_grow(struct sgx_encl *encl);
+void sgx_encl_shrink(struct sgx_encl *encl, struct sgx_va_page *va_page);
 
 #endif /* _X86_ENCL_H */
diff --git a/arch/x86/kernel/cpu/sgx/ioctl.c b/arch/x86/kernel/cpu/sgx/ioctl.c
index 0c211af8e948..746acddbb774 100644
--- a/arch/x86/kernel/cpu/sgx/ioctl.c
+++ b/arch/x86/kernel/cpu/sgx/ioctl.c
@@ -17,7 +17,7 @@
 #include "encl.h"
 #include "encls.h"
 
-static struct sgx_va_page *sgx_encl_grow(struct sgx_encl *encl)
+struct sgx_va_page *sgx_encl_grow(struct sgx_encl *encl)
 {
 	struct sgx_va_page *va_page = NULL;
 	void *err;
@@ -43,7 +43,7 @@ static struct sgx_va_page *sgx_encl_grow(struct sgx_encl *encl)
 	return va_page;
 }
 
-static void sgx_encl_shrink(struct sgx_encl *encl, struct sgx_va_page *va_page)
+void sgx_encl_shrink(struct sgx_encl *encl, struct sgx_va_page *va_page)
 {
 	encl->page_cnt--;
 
-- 
2.25.1


  parent reply	other threads:[~2022-04-04 21:18 UTC|newest]

Thread overview: 79+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-04-04 16:49 [PATCH V3 00/30] x86/sgx and selftests/sgx: Support SGX2 Reinette Chatre
2022-04-04 16:49 ` [PATCH V3 01/30] x86/sgx: Add short descriptions to ENCLS wrappers Reinette Chatre
2022-04-05  6:52   ` Jarkko Sakkinen
2022-04-04 16:49 ` [PATCH V3 02/30] x86/sgx: Add wrapper for SGX2 EMODPR function Reinette Chatre
2022-04-05  6:53   ` Jarkko Sakkinen
2022-04-04 16:49 ` [PATCH V3 03/30] x86/sgx: Add wrapper for SGX2 EMODT function Reinette Chatre
2022-04-05  6:53   ` Jarkko Sakkinen
2022-04-04 16:49 ` [PATCH V3 04/30] x86/sgx: Add wrapper for SGX2 EAUG function Reinette Chatre
2022-04-05  6:54   ` Jarkko Sakkinen
2022-04-04 16:49 ` [PATCH V3 05/30] x86/sgx: Support loading enclave page without VMA permissions check Reinette Chatre
2022-04-05  6:56   ` Jarkko Sakkinen
2022-04-04 16:49 ` [PATCH V3 06/30] x86/sgx: Export sgx_encl_ewb_cpumask() Reinette Chatre
2022-04-05  6:56   ` Jarkko Sakkinen
2022-04-04 16:49 ` [PATCH V3 07/30] x86/sgx: Rename sgx_encl_ewb_cpumask() as sgx_encl_cpumask() Reinette Chatre
2022-04-05  6:57   ` Jarkko Sakkinen
2022-04-04 16:49 ` [PATCH V3 08/30] x86/sgx: Move PTE zap code to new sgx_zap_enclave_ptes() Reinette Chatre
2022-04-05  6:59   ` Jarkko Sakkinen
2022-04-04 16:49 ` [PATCH V3 09/30] x86/sgx: Make sgx_ipi_cb() available internally Reinette Chatre
2022-04-05  6:59   ` Jarkko Sakkinen
2022-04-04 16:49 ` [PATCH V3 10/30] x86/sgx: Create utility to validate user provided offset and length Reinette Chatre
2022-04-05  7:00   ` Jarkko Sakkinen
2022-04-04 16:49 ` [PATCH V3 11/30] x86/sgx: Keep record of SGX page type Reinette Chatre
2022-04-05  7:00   ` Jarkko Sakkinen
2022-04-04 16:49 ` Reinette Chatre [this message]
2022-04-05  7:04   ` [PATCH V3 12/30] x86/sgx: Export sgx_encl_{grow,shrink}() Jarkko Sakkinen
2022-04-04 16:49 ` [PATCH V3 13/30] x86/sgx: Export sgx_encl_page_alloc() Reinette Chatre
2022-04-04 16:49 ` [PATCH V3 14/30] x86/sgx: Support restricting of enclave page permissions Reinette Chatre
2022-04-05  5:03   ` Jarkko Sakkinen
2022-04-05  5:07     ` Jarkko Sakkinen
2022-04-05 13:40       ` Jarkko Sakkinen
2022-04-05 14:19         ` Jarkko Sakkinen
2022-04-05 14:27           ` Jarkko Sakkinen
2022-04-05 14:52             ` Jarkko Sakkinen
2022-04-05 16:49               ` Reinette Chatre
2022-04-05 18:39                 ` Jarkko Sakkinen
2022-04-05 18:59                   ` Reinette Chatre
2022-04-06  7:30                     ` Jarkko Sakkinen
2022-04-06 17:51                       ` Reinette Chatre
2022-04-05 16:40             ` Reinette Chatre
2022-04-04 16:49 ` [PATCH V3 15/30] x86/sgx: Support adding of pages to an initialized enclave Reinette Chatre
2022-04-05  5:05   ` Jarkko Sakkinen
2022-04-05 10:03     ` Jarkko Sakkinen
2022-04-06  7:37       ` Jarkko Sakkinen
2022-04-06 22:42         ` Reinette Chatre
2022-04-04 16:49 ` [PATCH V3 16/30] x86/sgx: Tighten accessible memory range after enclave initialization Reinette Chatre
2022-04-05  7:05   ` Jarkko Sakkinen
2022-04-04 16:49 ` [PATCH V3 17/30] x86/sgx: Support modifying SGX page type Reinette Chatre
2022-04-05  7:06   ` Jarkko Sakkinen
2022-04-05 15:34     ` Jarkko Sakkinen
2022-04-05 17:05       ` Reinette Chatre
2022-04-05 18:41         ` Jarkko Sakkinen
2022-04-05 18:59           ` Reinette Chatre
2022-04-06  7:32             ` Jarkko Sakkinen
2022-04-06 17:50               ` Reinette Chatre
2022-04-04 16:49 ` [PATCH V3 18/30] x86/sgx: Support complete page removal Reinette Chatre
2022-04-05  7:08   ` Jarkko Sakkinen
2022-04-04 16:49 ` [PATCH V3 19/30] x86/sgx: Free up EPC pages directly to support large page ranges Reinette Chatre
2022-04-05  7:11   ` Jarkko Sakkinen
2022-04-05 17:13     ` Reinette Chatre
2022-04-05 17:25       ` Dave Hansen
2022-04-06  6:35         ` Jarkko Sakkinen
2022-04-06 17:50           ` Reinette Chatre
2022-04-05 18:42       ` Jarkko Sakkinen
2022-04-05 19:56         ` Reinette Chatre
2022-04-04 16:49 ` [PATCH V3 20/30] Documentation/x86: Introduce enclave runtime management section Reinette Chatre
2022-04-04 16:49 ` [PATCH V3 21/30] selftests/sgx: Add test for EPCM permission changes Reinette Chatre
2022-04-05  7:02   ` Jarkko Sakkinen
2022-04-05  7:03     ` Jarkko Sakkinen
2022-04-05 17:28     ` Reinette Chatre
2022-04-05 18:43       ` Jarkko Sakkinen
2022-04-04 16:49 ` [PATCH V3 22/30] selftests/sgx: Add test for TCS page " Reinette Chatre
2022-04-04 16:49 ` [PATCH V3 23/30] selftests/sgx: Test two different SGX2 EAUG flows Reinette Chatre
2022-04-04 16:49 ` [PATCH V3 24/30] selftests/sgx: Introduce dynamic entry point Reinette Chatre
2022-04-04 16:49 ` [PATCH V3 25/30] selftests/sgx: Introduce TCS initialization enclave operation Reinette Chatre
2022-04-04 16:49 ` [PATCH V3 26/30] selftests/sgx: Test complete changing of page type flow Reinette Chatre
2022-04-04 16:49 ` [PATCH V3 27/30] selftests/sgx: Test faulty enclave behavior Reinette Chatre
2022-04-04 16:49 ` [PATCH V3 28/30] selftests/sgx: Test invalid access to removed enclave page Reinette Chatre
2022-04-04 16:49 ` [PATCH V3 29/30] selftests/sgx: Test reclaiming of untouched page Reinette Chatre
2022-04-04 16:49 ` [PATCH V3 30/30] selftests/sgx: Page removal stress test Reinette Chatre

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