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,
shuah@kernel.org, linux-kselftest@vger.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, vijay.dhanraj@intel.com, hpa@zytor.com,
linux-kernel@vger.kernel.org
Subject: [PATCH V4 09/31] x86/sgx: Make sgx_ipi_cb() available internally
Date: Wed, 13 Apr 2022 14:10:09 -0700 [thread overview]
Message-ID: <41e34a579bd81ea4085e27ae4bf16c73914340ca.1649878359.git.reinette.chatre@intel.com> (raw)
In-Reply-To: <cover.1649878359.git.reinette.chatre@intel.com>
The ETRACK function followed by an IPI to all CPUs within an enclave
is a common pattern with more frequent use in support of SGX2.
Make the (empty) IPI callback function available internally in
preparation for usage by SGX2.
Reviewed-by: Jarkko Sakkinen <jarkko@kernel.org>
Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
---
Changes since V3:
- Add Jarkko's Reviewed-by tag.
Changes since V1:
- Replace "for more usages" by "for usage by SGX2" (Jarkko)
arch/x86/kernel/cpu/sgx/main.c | 2 +-
arch/x86/kernel/cpu/sgx/sgx.h | 2 ++
2 files changed, 3 insertions(+), 1 deletion(-)
diff --git a/arch/x86/kernel/cpu/sgx/main.c b/arch/x86/kernel/cpu/sgx/main.c
index ce9e87d5f8ec..6e2cb7564080 100644
--- a/arch/x86/kernel/cpu/sgx/main.c
+++ b/arch/x86/kernel/cpu/sgx/main.c
@@ -172,7 +172,7 @@ static int __sgx_encl_ewb(struct sgx_epc_page *epc_page, void *va_slot,
return ret;
}
-static void sgx_ipi_cb(void *info)
+void sgx_ipi_cb(void *info)
{
}
diff --git a/arch/x86/kernel/cpu/sgx/sgx.h b/arch/x86/kernel/cpu/sgx/sgx.h
index 0f17def9fe6f..b30cee4de903 100644
--- a/arch/x86/kernel/cpu/sgx/sgx.h
+++ b/arch/x86/kernel/cpu/sgx/sgx.h
@@ -90,6 +90,8 @@ void sgx_mark_page_reclaimable(struct sgx_epc_page *page);
int sgx_unmark_page_reclaimable(struct sgx_epc_page *page);
struct sgx_epc_page *sgx_alloc_epc_page(void *owner, bool reclaim);
+void sgx_ipi_cb(void *info);
+
#ifdef CONFIG_X86_SGX_KVM
int __init sgx_vepc_init(void);
#else
--
2.25.1
next prev parent reply other threads:[~2022-04-13 21:13 UTC|newest]
Thread overview: 60+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-04-13 21:10 [PATCH V4 00/31] x86/sgx and selftests/sgx: Support SGX2 Reinette Chatre
2022-04-13 21:10 ` [PATCH V4 01/31] x86/sgx: Add short descriptions to ENCLS wrappers Reinette Chatre
2022-04-13 21:10 ` [PATCH V4 02/31] x86/sgx: Add wrapper for SGX2 EMODPR function Reinette Chatre
2022-04-13 21:10 ` [PATCH V4 03/31] x86/sgx: Add wrapper for SGX2 EMODT function Reinette Chatre
2022-04-13 21:10 ` [PATCH V4 04/31] x86/sgx: Add wrapper for SGX2 EAUG function Reinette Chatre
2022-04-13 21:10 ` [PATCH V4 05/31] x86/sgx: Support loading enclave page without VMA permissions check Reinette Chatre
2022-04-13 21:10 ` [PATCH V4 06/31] x86/sgx: Export sgx_encl_ewb_cpumask() Reinette Chatre
2022-04-13 21:10 ` [PATCH V4 07/31] x86/sgx: Rename sgx_encl_ewb_cpumask() as sgx_encl_cpumask() Reinette Chatre
2022-04-13 21:10 ` [PATCH V4 08/31] x86/sgx: Move PTE zap code to new sgx_zap_enclave_ptes() Reinette Chatre
2022-04-13 21:10 ` Reinette Chatre [this message]
2022-04-13 21:10 ` [PATCH V4 10/31] x86/sgx: Create utility to validate user provided offset and length Reinette Chatre
2022-04-13 21:10 ` [PATCH V4 11/31] x86/sgx: Keep record of SGX page type Reinette Chatre
2022-04-14 11:12 ` Jarkko Sakkinen
2022-04-14 16:27 ` Reinette Chatre
2022-04-13 21:10 ` [PATCH V4 12/31] x86/sgx: Export sgx_encl_{grow,shrink}() Reinette Chatre
2022-04-13 21:10 ` [PATCH V4 13/31] x86/sgx: Export sgx_encl_page_alloc() Reinette Chatre
2022-04-13 21:10 ` [PATCH V4 14/31] x86/sgx: Support VA page allocation without reclaiming Reinette Chatre
2022-04-14 11:18 ` Jarkko Sakkinen
2022-04-14 16:30 ` Reinette Chatre
2022-04-15 13:54 ` Haitao Huang
2022-04-15 15:22 ` Reinette Chatre
2022-04-13 21:10 ` [PATCH V4 15/31] x86/sgx: Support restricting of enclave page permissions Reinette Chatre
2022-04-14 11:19 ` Jarkko Sakkinen
2022-04-14 11:19 ` Jarkko Sakkinen
2022-04-14 16:31 ` Reinette Chatre
2022-04-13 21:10 ` [PATCH V4 16/31] x86/sgx: Support adding of pages to an initialized enclave Reinette Chatre
2022-04-14 11:20 ` Jarkko Sakkinen
2022-04-14 16:31 ` Reinette Chatre
2022-04-13 21:10 ` [PATCH V4 17/31] x86/sgx: Tighten accessible memory range after enclave initialization Reinette Chatre
2022-04-13 21:10 ` [PATCH V4 18/31] x86/sgx: Support modifying SGX page type Reinette Chatre
2022-04-14 11:11 ` Jarkko Sakkinen
2022-04-14 16:32 ` Reinette Chatre
2022-04-13 21:10 ` [PATCH V4 19/31] x86/sgx: Support complete page removal Reinette Chatre
2022-04-13 21:10 ` [PATCH V4 20/31] x86/sgx: Free up EPC pages directly to support large page ranges Reinette Chatre
2022-04-13 21:10 ` [PATCH V4 21/31] Documentation/x86: Introduce enclave runtime management section Reinette Chatre
2022-04-14 11:21 ` Jarkko Sakkinen
2022-04-14 16:32 ` Reinette Chatre
2022-04-13 21:10 ` [PATCH V4 22/31] selftests/sgx: Add test for EPCM permission changes Reinette Chatre
2022-04-13 21:10 ` [PATCH V4 23/31] selftests/sgx: Add test for TCS page " Reinette Chatre
2022-04-13 21:10 ` [PATCH V4 24/31] selftests/sgx: Test two different SGX2 EAUG flows Reinette Chatre
2022-04-13 21:10 ` [PATCH V4 25/31] selftests/sgx: Introduce dynamic entry point Reinette Chatre
2022-04-13 21:10 ` [PATCH V4 26/31] selftests/sgx: Introduce TCS initialization enclave operation Reinette Chatre
2022-04-13 21:10 ` [PATCH V4 27/31] selftests/sgx: Test complete changing of page type flow Reinette Chatre
2022-04-13 21:10 ` [PATCH V4 28/31] selftests/sgx: Test faulty enclave behavior Reinette Chatre
2022-04-13 21:10 ` [PATCH V4 29/31] selftests/sgx: Test invalid access to removed enclave page Reinette Chatre
2022-04-13 21:10 ` [PATCH V4 30/31] selftests/sgx: Test reclaiming of untouched page Reinette Chatre
2022-04-13 21:10 ` [PATCH V4 31/31] selftests/sgx: Page removal stress test Reinette Chatre
2022-04-14 11:25 ` [PATCH V4 00/31] x86/sgx and selftests/sgx: Support SGX2 Jarkko Sakkinen
2022-04-14 16:34 ` Reinette Chatre
2022-04-14 16:55 ` Jarkko Sakkinen
2022-04-14 18:35 ` Dhanraj, Vijay
2022-04-17 14:58 ` Jarkko Sakkinen
2022-04-21 23:46 ` Dhanraj, Vijay
2022-04-22 3:29 ` Reinette Chatre
2022-04-22 9:16 ` Jarkko Sakkinen
2022-04-22 13:17 ` Jarkko Sakkinen
2022-04-25 20:17 ` Dhanraj, Vijay
2022-04-25 23:56 ` Reinette Chatre
2022-04-26 4:10 ` Jarkko Sakkinen
2022-04-22 9:14 ` Jarkko Sakkinen
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