barebones `memflag()` implementation - letting the user allocate pages

2 files changed, 9 insertions, 0 deletions

diff --git a/src/shared/flags.h b/src/shared/flags.h
new file mode 100644
index 0000000..9ab8d9d
--- /dev/null
+++ b/src/shared/flags.h
@@ -0,0 +1,5 @@
+#pragma once
+
+enum {
+	MEMFLAG_PRESENT = 1 << 0,
+};
diff --git a/src/shared/syscalls.h b/src/shared/syscalls.h
index a746ade..d96c8a7 100644
--- a/src/shared/syscalls.h
+++ b/src/shared/syscalls.h
@@ -22,6 +22,8 @@ enum {
 
 	_SYSCALL_FS_CREATE,
 	_SYSCALL_FS_WAIT,
+
+	_SYSCALL_MEMFLAG,
 };
 
 /** Kills the current process.
@@ -53,3 +55,5 @@ int _syscall_close(handle_t);
 handle_t _syscall_fs_create(handle_t __user *back);
 
 int _syscall_fs_wait(handle_t back, char __user *buf, int __user *len);
+
+int _syscall_memflag(void __user *addr, size_t len, int flags);