In macOS 11, QEMU only gets access to Hypervisor.framework if it has the
respective entitlement. Add an entitlement template and automatically self
sign and apply the entitlement in the build.

Signed-off-by: Alexander Graf <agraf@csgraf.de>

---

v1 -> v2:

  - Make safe to ctrl-C
---
 accel/hvf/entitlements.plist |  8 ++++++++
 meson.build                  | 30 ++++++++++++++++++++++++++----
 scripts/entitlement.sh       | 13 +++++++++++++
 3 files changed, 47 insertions(+), 4 deletions(-)
 create mode 100644 accel/hvf/entitlements.plist
 create mode 100755 scripts/entitlement.sh

diff --git a/accel/hvf/entitlements.plist b/accel/hvf/entitlements.plist
new file mode 100644
index 0000000000..154f3308ef
--- /dev/null
+++ b/accel/hvf/entitlements.plist
@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+    <key>com.apple.security.hypervisor</key>
+    <true/>
+</dict>
+</plist>
diff --git a/meson.build b/meson.build
index 5062407c70..2a7ff5560c 100644
--- a/meson.build
+++ b/meson.build
@@ -1844,9 +1844,14 @@ foreach target : target_dirs
     }]
   endif
   foreach exe: execs
-    emulators += {exe['name']:
-         executable(exe['name'], exe['sources'],
-               install: true,
+    exe_name = exe['name']
+    exe_sign = 'CONFIG_HVF' in config_target
+    if exe_sign
+      exe_name += '-unsigned'
+    endif
+
+    emulator = executable(exe_name, exe['sources'],
+               install: not exe_sign,
                c_args: c_args,
                dependencies: arch_deps + deps + exe['dependencies'],
                objects: lib.extract_all_objects(recursive: true),
@@ -1854,7 +1859,24 @@ foreach target : target_dirs
                link_depends: [block_syms, qemu_syms] + exe.get('link_depends', []),
                link_args: link_args,
                gui_app: exe['gui'])
-    }
+
+    if exe_sign
+      exe_full = meson.current_build_dir() / exe['name']
+      emulators += {exe['name'] : custom_target(exe['name'],
+                   install: true,
+                   install_dir: get_option('bindir'),
+                   depends: emulator,
+                   output: exe['name'],
+                   command: [
+                     meson.current_source_dir() / 'scripts/entitlement.sh',
+                     meson.current_build_dir() / exe['name'] + '-unsigned',
+                     meson.current_build_dir() / exe['name'],
+                     meson.current_source_dir() / 'accel/hvf/entitlements.plist'
+                   ])
+      }
+    else
+      emulators += {exe['name']: emulator}
+    endif
 
     if 'CONFIG_TRACE_SYSTEMTAP' in config_host
       foreach stp: [
diff --git a/scripts/entitlement.sh b/scripts/entitlement.sh
new file mode 100755
index 0000000000..c540fa6435
--- /dev/null
+++ b/scripts/entitlement.sh
@@ -0,0 +1,13 @@
+#!/bin/sh -e
+#
+# Helper script for the build process to apply entitlements
+
+SRC="$1"
+DST="$2"
+ENTITLEMENT="$3"
+
+trap 'rm "$DST.tmp"' exit
+cp -af "$SRC" "$DST.tmp"
+codesign --entitlements "$ENTITLEMENT" --force -s - "$DST.tmp"
+mv "$DST.tmp" "$DST"
+trap '' exit
-- 
2.24.3 (Apple Git-128)