diff mbox series

[RFC,v3,1/4] x86/sgx: Export sgx_encl_eaug_page

Message ID 20221107220212.257422-2-haitao.huang@linux.intel.com (mailing list archive)
State New, archived
Headers show
Series x86/sgx: implement support for MADV_WILLNEED | expand

Commit Message

Haitao Huang Nov. 7, 2022, 10:02 p.m. UTC 
This function will be called by both the page fault handler
and the fops->fadvise callback.

Signed-off-by: Haitao Huang <haitao.huang@linux.intel.com>
---
 arch/x86/kernel/cpu/sgx/encl.c | 4 ++--
 arch/x86/kernel/cpu/sgx/encl.h | 2 ++
 2 files changed, 4 insertions(+), 2 deletions(-)

Comments

Jarkko Sakkinen Nov. 15, 2022, 9:54 p.m. UTC | #1 
On Mon, Nov 07, 2022 at 02:02:09PM -0800, Haitao Huang wrote:
> This function will be called by both the page fault handler
> and the fops->fadvise callback.
> 
> Signed-off-by: Haitao Huang <haitao.huang@linux.intel.com>
> ---
>  arch/x86/kernel/cpu/sgx/encl.c | 4 ++--
>  arch/x86/kernel/cpu/sgx/encl.h | 2 ++
>  2 files changed, 4 insertions(+), 2 deletions(-)
> 
> diff --git a/arch/x86/kernel/cpu/sgx/encl.c b/arch/x86/kernel/cpu/sgx/encl.c
> index 8bdeae2fc309..1abc5e7f2660 100644
> --- a/arch/x86/kernel/cpu/sgx/encl.c
> +++ b/arch/x86/kernel/cpu/sgx/encl.c
> @@ -308,8 +308,8 @@ struct sgx_encl_page *sgx_encl_load_page(struct sgx_encl *encl,
>   * Returns: Appropriate vm_fault_t: VM_FAULT_NOPAGE when PTE was installed
>   * successfully, VM_FAULT_SIGBUS or VM_FAULT_OOM as error otherwise.
>   */
> -static vm_fault_t sgx_encl_eaug_page(struct vm_area_struct *vma,
> -				     struct sgx_encl *encl, unsigned long addr)
> +vm_fault_t sgx_encl_eaug_page(struct vm_area_struct *vma,
> +			      struct sgx_encl *encl, unsigned long addr)
>  {
>  	vm_fault_t vmret = VM_FAULT_SIGBUS;
>  	struct sgx_pageinfo pginfo = {0};
> diff --git a/arch/x86/kernel/cpu/sgx/encl.h b/arch/x86/kernel/cpu/sgx/encl.h
> index a65a952116fd..557d4abb13fc 100644
> --- a/arch/x86/kernel/cpu/sgx/encl.h
> +++ b/arch/x86/kernel/cpu/sgx/encl.h
> @@ -127,5 +127,7 @@ 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, bool reclaim);
>  void sgx_encl_shrink(struct sgx_encl *encl, struct sgx_va_page *va_page);
> +vm_fault_t sgx_encl_eaug_page(struct vm_area_struct *vma,
> +			      struct sgx_encl *encl, unsigned long addr);
>  
>  #endif /* _X86_ENCL_H */
> -- 
> 2.25.1
> 

Acked-by: Jarkko Sakkinen <jarkko@kernel.org>

BR, Jarkko
diff mbox series

Patch

diff --git a/arch/x86/kernel/cpu/sgx/encl.c b/arch/x86/kernel/cpu/sgx/encl.c
index 8bdeae2fc309..1abc5e7f2660 100644
--- a/arch/x86/kernel/cpu/sgx/encl.c
+++ b/arch/x86/kernel/cpu/sgx/encl.c
@@ -308,8 +308,8 @@  struct sgx_encl_page *sgx_encl_load_page(struct sgx_encl *encl,
  * Returns: Appropriate vm_fault_t: VM_FAULT_NOPAGE when PTE was installed
  * successfully, VM_FAULT_SIGBUS or VM_FAULT_OOM as error otherwise.
  */
-static vm_fault_t sgx_encl_eaug_page(struct vm_area_struct *vma,
-				     struct sgx_encl *encl, unsigned long addr)
+vm_fault_t sgx_encl_eaug_page(struct vm_area_struct *vma,
+			      struct sgx_encl *encl, unsigned long addr)
 {
 	vm_fault_t vmret = VM_FAULT_SIGBUS;
 	struct sgx_pageinfo pginfo = {0};
diff --git a/arch/x86/kernel/cpu/sgx/encl.h b/arch/x86/kernel/cpu/sgx/encl.h
index a65a952116fd..557d4abb13fc 100644
--- a/arch/x86/kernel/cpu/sgx/encl.h
+++ b/arch/x86/kernel/cpu/sgx/encl.h
@@ -127,5 +127,7 @@  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, bool reclaim);
 void sgx_encl_shrink(struct sgx_encl *encl, struct sgx_va_page *va_page);
+vm_fault_t sgx_encl_eaug_page(struct vm_area_struct *vma,
+			      struct sgx_encl *encl, unsigned long addr);
 
 #endif /* _X86_ENCL_H */