feat: add support for process to conduct Intel x87 and MMX related task.

[lunaix-os.git] / lunaix-os / kernel / process / sched.c

diff --git a/lunaix-os/kernel/process/sched.c b/lunaix-os/kernel/process/sched.c
index 3ee0e7666c32eafe97c3436ac1c2a9ccc103f64b..4e3f290c4ca61e36699988c9f77f899d567c3bf7 100644 (file)
--- a/lunaix-os/kernel/process/sched.c
+++ b/lunaix-os/kernel/process/sched.c
@@ -282,6 +282,8 @@ alloc_process()
     proc->created = clock_systime();
     proc->pgid = proc->pid;
     proc->fdtable = vzalloc(sizeof(struct v_fdtable));
+    proc->fxstate =
+      vzalloc_dma(512); // FXSAVE需要十六位对齐地址，使用DMA块（128位对齐）
 
     llist_init_head(&proc->mm.regions.head);
     llist_init_head(&proc->tasks);
@@ -349,6 +351,7 @@ destroy_process(pid_t pid)
     }
 
     vfree(proc->fdtable);
+    vfree_dma(proc->fxstate);
 
     struct mm_region *pos, *n;
     llist_for_each(pos, n, &proc->mm.regions.head, head)