fix: bug on dma alloc buffer & ahci driver

Makefile

@@ -167,7 +167,11 @@ QEMU_KVM := # no virutal
 QEMU_ARGUMENT = -m 1024M $(QEMU_KVM) \
 		-name "XBOOK Development Platform for x86" \
 		-fda $(FLOPPYA_IMG) \
-		-hda $(HDA_IMG) -hdb $(HDB_IMG) \
+		-drive id=disk0,file=$(HDA_IMG),if=none \
+		-drive id=disk1,file=$(HDB_IMG),if=none \
+		-device ahci,id=ahci \
+		-device ide-drive,drive=disk0,bus=ahci.0 \
+		-device ide-drive,drive=disk1,bus=ahci.1 \
 		-boot a \
 		-soundhw sb16 \
 		-serial stdio  \

TODO.md

@@ -24,7 +24,7 @@
 * 2021/2/22
 * 移植bash，把缺少的函数补上，不做具体实现。
     {
-    接口：sys/times, unistd/id.c,tcgetattr, tcsetattr,pwd.c
+    接口：unistd/id.c,tcgetattr, tcsetattr,pwd.c
         gethostname, umask, termios.c,mkfifo
     修改:signames.h改成bookos的，
     处理：SIGTSTP

src/arch/x86/mach-i386/drivers/ahci.c

@@ -831,7 +831,8 @@ int ahci_initialize_device(struct hba_memory *abar, device_extension_t *dev)
 	for(i=0;i<HBA_COMMAND_HEADER_NUM;i++) {
 		dev->ch_dmas[i].p.size = 0x1000;
 		dev->ch_dmas[i].p.alignment = 0x1000;
-		dma_alloc_buffer(&dev->ch_dmas[i]);
+		dev->ch_dmas[i].flags = DMA_REGION_SPECIAL;
+        dma_alloc_buffer(&dev->ch_dmas[i]);
 		dev->ch[i] = (void *)dev->ch_dmas[i].v;
 		memset(h, 0, sizeof(*h));
 		h->command_table_base_l = low32(dev->ch_dmas[i].p.address);

src/vmm/dma.c

@@ -18,7 +18,7 @@ int dma_alloc_buffer(struct dma_region *d)
             return -1;
         vaddr = (addr_t) kern_phy_addr2vir_addr(d->p.address);
     } else { // normal
-        d->p.address = page_alloc_user(npages);
+        d->p.address = page_alloc_normal(npages);
         if(d->p.address == 0)
 	    	return -1;