1 files changed, 0 insertions, 63 deletions
diff --git a/system/xen/xsa/xsa197-qemuu.patch b/system/xen/xsa/xsa197-qemuu.patch
deleted file mode 100644
index f7845cffd2..0000000000
--- a/system/xen/xsa/xsa197-qemuu.patch
+++ /dev/null
@@ -1,63 +0,0 @@
-From: Jan Beulich <jbeulich@suse.com>
-Subject: xen: fix ioreq handling
-
-Avoid double fetches and bounds check size to avoid overflowing
-internal variables.
-
-This is XSA-197.
-
-Reported-by: yanghongke <yanghongke@huawei.com>
-Signed-off-by: Jan Beulich <jbeulich@suse.com>
-Reviewed-by: Stefano Stabellini <sstabellini@kernel.org>
-
---- a/xen-hvm.c
-+++ b/xen-hvm.c
-@@ -810,6 +810,10 @@ static void cpu_ioreq_pio(ioreq_t *req)
-     trace_cpu_ioreq_pio(req, req->dir, req->df, req->data_is_ptr, req->addr,
-                          req->data, req->count, req->size);
- 
-+    if (req->size > sizeof(uint32_t)) {
-+        hw_error("PIO: bad size (%u)", req->size);
-+    }
-+
-     if (req->dir == IOREQ_READ) {
-         if (!req->data_is_ptr) {
-             req->data = do_inp(req->addr, req->size);
-@@ -846,6 +850,10 @@ static void cpu_ioreq_move(ioreq_t *req)
-     trace_cpu_ioreq_move(req, req->dir, req->df, req->data_is_ptr, req->addr,
-                          req->data, req->count, req->size);
- 
-+    if (req->size > sizeof(req->data)) {
-+        hw_error("MMIO: bad size (%u)", req->size);
-+    }
-+
-     if (!req->data_is_ptr) {
-         if (req->dir == IOREQ_READ) {
-             for (i = 0; i < req->count; i++) {
-@@ -1010,11 +1018,13 @@ static int handle_buffered_iopage(XenIOS
-         req.df = 1;
-         req.type = buf_req->type;
-         req.data_is_ptr = 0;
-+        xen_rmb();
-         qw = (req.size == 8);
-         if (qw) {
-             buf_req = &buf_page->buf_ioreq[(rdptr + 1) %
-                                            IOREQ_BUFFER_SLOT_NUM];
-             req.data |= ((uint64_t)buf_req->data) << 32;
-+            xen_rmb();
-         }
- 
-         handle_ioreq(state, &req);
-@@ -1045,7 +1055,11 @@ static void cpu_handle_ioreq(void *opaqu
- 
-     handle_buffered_iopage(state);
-     if (req) {
--        handle_ioreq(state, req);
-+        ioreq_t copy = *req;
-+
-+        xen_rmb();
-+        handle_ioreq(state, &copy);
-+        req->data = copy.data;
- 
-         if (req->state != STATE_IOREQ_INPROCESS) {
-             fprintf(stderr, "Badness in I/O request ... not in service?!: "