gh0s7/mckernel
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

xpmem: Add xpmem_openat

Browse Source 
In arm64, glibc-open of /dev/xpmem is hooked in sys_openat. This
commit adds xpmem_openat which is called by sys_openat.
This commit silently applies copy_from_user fix to sys_open as well.

Change-Id: I3b4f7bf0e152c359250bb2b56910db9192390cb1
Fujitsu: POSTK_DEBUG_ARCH_DEP_46, POSTK_DEBUG_ARCH_DEP_62
This commit is contained in:
Masamichi Takagi
2018-10-26 15:51:53 +09:00
committed by Dominique Martinet
parent e12d5ed341
commit 04c11f35e9
6 changed files with 83 additions and 110 deletions
Download Patch File Download Diff File Expand all files Collapse all files

13
kernel/include/xpmem.h
View File

@ -19,14 +19,13 @@
#define XPMEM_DEV_PATH "/dev/xpmem"
#if defined(POSTK_DEBUG_ARCH_DEP_46) || defined(POSTK_DEBUG_ARCH_DEP_62)
extern int xpmem_open(int, const char*, int, ihk_mc_user_context_t *ctx);
#else /* POSTK_DEBUG_ARCH_DEP_46 || POSTK_DEBUG_ARCH_DEP_62 */
extern int xpmem_open(ihk_mc_user_context_t *ctx);
#endif /* POSTK_DEBUG_ARCH_DEP_46 || POSTK_DEBUG_ARCH_DEP_62 */
extern int xpmem_remove_process_memory_range(struct process_vm *vm,
int xpmem_open(const char *pathname,
int flags, ihk_mc_user_context_t *ctx);
int xpmem_openat(const char *pathname,
int flags, ihk_mc_user_context_t *ctx);
int xpmem_remove_process_memory_range(struct process_vm *vm,
struct vm_range *vmr);
extern int xpmem_fault_process_memory_range(struct process_vm *vm,
int xpmem_fault_process_memory_range(struct process_vm *vm,
struct vm_range *vmr, unsigned long vaddr, uint64_t reason);
#endif /* _XPMEM_H */