Aren/toaruos
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

virtio: handle queue overflow

Browse Source
This commit is contained in:
K. Lange 2023-04-30 19:09:49 +09:00
parent a7e6b1eaae
commit e9811a0708
1 changed files with 2 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
kernel/arch/aarch64/virtio.c
View File

@ -228,7 +228,7 @@ static void virtio_tablet_thread(void * data) {
uint16_t them = queue->used.index; uint16_t them = queue->used.index;
for (; index < them; index++) { for (; index != them; index++) {
asm volatile ("dc ivac, %0\ndsb sy" :: "r"(&buffers[index%queue_size]) : "memory"); asm volatile ("dc ivac, %0\ndsb sy" :: "r"(&buffers[index%queue_size]) : "memory");
struct virtio_input_event evt = buffers[index%queue_size]; struct virtio_input_event evt = buffers[index%queue_size];
while (evt.type == 0xFF) { while (evt.type == 0xFF) {
@ -376,7 +376,7 @@ static void virtio_keyboard_thread(void * data) {
uint16_t them = queue->used.index; uint16_t them = queue->used.index;
for (; index < them; index++) { for (; index != them; index++) {
asm volatile ("dc ivac, %0\ndsb sy" :: "r"(&buffers[index%queue_size]) : "memory"); asm volatile ("dc ivac, %0\ndsb sy" :: "r"(&buffers[index%queue_size]) : "memory");
struct virtio_input_event evt = buffers[index%queue_size]; struct virtio_input_event evt = buffers[index%queue_size];
while (evt.type == 0xFF) { while (evt.type == 0xFF) {