@@ -266,13 +266,27 @@ static int erst_exec_move_data(struct ap
{
int rc;
u64 offset;
+ void *src, *dst;
+
+ /* ioremap does not work in interrupt context */
+ if (in_interrupt())
+ return -EBUSY;
rc = __apei_exec_read_register(entry, &offset);
if (rc)
return rc;
- memmove((void *)ctx->dst_base + offset,
- (void *)ctx->src_base + offset,
- ctx->var2);
+
+ src = ioremap(ctx->src_base + offset, ctx->var2);
+ if (!src)
+ return -ENOMEM;
+ dst = ioremap(ctx->dst_base + offset, ctx->var2);
+ if (!dst)
+ return -ENOMEM;
+
+ memmove(dst, src, ctx->var2);
+
+ iounmap(src);
+ iounmap(dst);
return 0;
}