Import QEMU upstream snapshot d2e570c

Upstream: https://gitlab.com/qemu-project/qemu.git

Upstream-Commit: d2e570cc0f97b936902a5b1b86b73c0f5998b475

.editorconfig

@@ -0,0 +1,62 @@
+# EditorConfig is a file format and collection of text editor plugins
+# for maintaining consistent coding styles between different editors
+# and IDEs. Most popular editors support this either natively or via
+# plugin.
+#
+# Check https://editorconfig.org for details.
+#
+# Emacs: you need https://github.com/10sr/editorconfig-custom-majormode-el
+# to automatically enable the appropriate major-mode for your files
+# that aren't already caught by your existing config.
+#
+
+root = true
+
+[*]
+end_of_line = lf
+insert_final_newline = true
+charset = utf-8
+
+[*.mak]
+indent_style = tab
+indent_size = 8
+emacs_mode = makefile
+
+[Makefile*]
+indent_style = tab
+indent_size = 8
+emacs_mode = makefile
+
+[*.{c,h,c.inc,h.inc}]
+indent_style = space
+indent_size = 4
+emacs_mode = c
+
+[*.sh]
+indent_style = space
+indent_size = 4
+
+[*.{s,S}]
+indent_style = tab
+indent_size = 8
+emacs_mode = asm
+
+[*.{vert,frag}]
+emacs_mode = glsl
+
+[*.json]
+indent_style = space
+emacs_mode = python
+
+# by default follow QEMU's style
+[*.pl]
+indent_style = space
+indent_size = 4
+emacs_mode = perl
+
+# but user kernel "style" for imported scripts
+[scripts/{get_maintainer.pl,checkpatch.pl}]
+indent_style = tab
+indent_size = 8
+emacs_mode = perl
+