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Subject[PATCH 2/3] mm/duet: syscall wiring
Date
Usual syscall wiring for the four Duet syscalls.

Signed-off-by: George Amvrosiadis <gamvrosi@gmail.com>
---
arch/x86/entry/syscalls/syscall_32.tbl | 4 ++++
arch/x86/entry/syscalls/syscall_64.tbl | 4 ++++
include/linux/syscalls.h | 8 ++++++++
include/uapi/asm-generic/unistd.h | 12 +++++++++++-
kernel/sys_ni.c | 6 ++++++
5 files changed, 33 insertions(+), 1 deletion(-)

diff --git a/arch/x86/entry/syscalls/syscall_32.tbl b/arch/x86/entry/syscalls/syscall_32.tbl
index 4cddd17..f34ff94 100644
--- a/arch/x86/entry/syscalls/syscall_32.tbl
+++ b/arch/x86/entry/syscalls/syscall_32.tbl
@@ -386,3 +386,7 @@
377 i386 copy_file_range sys_copy_file_range
378 i386 preadv2 sys_preadv2 compat_sys_preadv2
379 i386 pwritev2 sys_pwritev2 compat_sys_pwritev2
+380 i386 duet_status sys_duet_status
+381 i386 duet_init sys_duet_init
+382 i386 duet_bmap sys_duet_bmap
+383 i386 duet_get_path sys_duet_get_path
diff --git a/arch/x86/entry/syscalls/syscall_64.tbl b/arch/x86/entry/syscalls/syscall_64.tbl
index 555263e..d04efaa 100644
--- a/arch/x86/entry/syscalls/syscall_64.tbl
+++ b/arch/x86/entry/syscalls/syscall_64.tbl
@@ -335,6 +335,10 @@
326 common copy_file_range sys_copy_file_range
327 64 preadv2 sys_preadv2
328 64 pwritev2 sys_pwritev2
+329 common duet_status sys_duet_status
+330 common duet_init sys_duet_init
+331 common duet_bmap sys_duet_bmap
+332 common duet_get_path sys_duet_get_path

#
# x32-specific system call numbers start at 512 to avoid cache impact
diff --git a/include/linux/syscalls.h b/include/linux/syscalls.h
index d022390..da1049e 100644
--- a/include/linux/syscalls.h
+++ b/include/linux/syscalls.h
@@ -65,6 +65,8 @@ struct old_linux_dirent;
struct perf_event_attr;
struct file_handle;
struct sigaltstack;
+struct duet_status_args;
+struct duet_uuid_arg;
union bpf_attr;

#include <linux/types.h>
@@ -898,4 +900,10 @@ asmlinkage long sys_copy_file_range(int fd_in, loff_t __user *off_in,

asmlinkage long sys_mlock2(unsigned long start, size_t len, int flags);

+asmlinkage long sys_duet_status(u16 flags, struct duet_status_args __user *arg);
+asmlinkage long sys_duet_init(const char __user *taskname, u32 regmask,
+ const char __user *pathname);
+asmlinkage long sys_duet_bmap(u16 flags, struct duet_uuid_arg __user *arg);
+asmlinkage long sys_duet_get_path(struct duet_uuid_arg __user *uarg,
+ char __user *pathbuf, int pathbufsize);
#endif
diff --git a/include/uapi/asm-generic/unistd.h b/include/uapi/asm-generic/unistd.h
index a26415b..7c287c0 100644
--- a/include/uapi/asm-generic/unistd.h
+++ b/include/uapi/asm-generic/unistd.h
@@ -725,8 +725,18 @@ __SC_COMP(__NR_preadv2, sys_preadv2, compat_sys_preadv2)
#define __NR_pwritev2 287
__SC_COMP(__NR_pwritev2, sys_pwritev2, compat_sys_pwritev2)

+/* mm/duet/syscall.c */
+#define __NR_duet_status 288
+__SYSCALL(__NR_duet_status, sys_duet_status)
+#define __NR_duet_init 289
+__SYSCALL(__NR_duet_init, sys_duet_init)
+#define __NR_duet_bmap 290
+__SYSCALL(__NR_duet_bmap, sys_duet_bmap)
+#define __NR_duet_get_path 291
+__SYSCALL(__NR_duet_get_path, sys_duet_get_path)
+
#undef __NR_syscalls
-#define __NR_syscalls 288
+#define __NR_syscalls 292

/*
* All syscalls below here should go away really,
diff --git a/kernel/sys_ni.c b/kernel/sys_ni.c
index 2c5e3a8..3d4c53a 100644
--- a/kernel/sys_ni.c
+++ b/kernel/sys_ni.c
@@ -176,6 +176,12 @@ cond_syscall(sys_capget);
cond_syscall(sys_capset);
cond_syscall(sys_copy_file_range);

+/* Duet syscall entries */
+cond_syscall(sys_duet_status);
+cond_syscall(sys_duet_init);
+cond_syscall(sys_duet_bmap);
+cond_syscall(sys_duet_get_path);
+
/* arch-specific weak syscall entries */
cond_syscall(sys_pciconfig_read);
cond_syscall(sys_pciconfig_write);
--
2.7.4
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