[PATCH V3 01/10] vhost: disable metadata prefetch optimization
From: Jason Wang <jasowang@redhat.com>
Date: 2019-08-07 06:54:40
Subsystem:
the rest, virtio host (vhost) · Maintainers:
Linus Torvalds, "Michael S. Tsirkin", Jason Wang
Possibly related (same subject, not in this thread)
- 2019-08-07 · Re: [PATCH V3 01/10] vhost: disable metadata prefetch optimization · Jason Wang <jasowang@redhat.com>
From: "Michael S. Tsirkin" <mst@redhat.com> This seems to cause guest and host memory corruption. Disable for now until we get a better handle on that. Signed-off-by: Michael S. Tsirkin <mst@redhat.com> --- drivers/vhost/vhost.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/vhost/vhost.h b/drivers/vhost/vhost.h
index 819296332913..42a8c2a13ab1 100644
--- a/drivers/vhost/vhost.h
+++ b/drivers/vhost/vhost.h@@ -96,7 +96,7 @@ struct vhost_uaddr { }; #if defined(CONFIG_MMU_NOTIFIER) && ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE == 0 -#define VHOST_ARCH_CAN_ACCEL_UACCESS 1 +#define VHOST_ARCH_CAN_ACCEL_UACCESS 0 #else #define VHOST_ARCH_CAN_ACCEL_UACCESS 0 #endif
--
2.18.1