[PATCH v2 24/27] monitor: Do not check TARGET_I386 to build 'info sev' command

["Philippe Mathieu-Daudé" <philmd@linaro.org>]

This command is filtered at build-time for i386/x86_64 binaries.
By using the recently introduced HMPCommand::arch_bitmask flag
we can filter it at runtime, making it possible to compile
hmp-commands-info.hx once.

Since the method depends on the CONFIG_SEV definition, define it
in its own stub file.

Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
---
 MAINTAINERS                   |  1 +
 stubs/hmp-cmd-info_sev.c      | 16 ++++++++++++++++
 target/i386/sev-system-stub.c |  5 -----
 hmp-commands-info.hx          |  3 +--
 stubs/meson.build             |  1 +
 5 files changed, 19 insertions(+), 7 deletions(-)
 create mode 100644 stubs/hmp-cmd-info_sev.c

diff --git a/MAINTAINERS b/MAINTAINERS
index 31e973fdeb0..5dcd24a8a89 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -515,6 +515,7 @@ S: Supported
 F: docs/system/i386/amd-memory-encryption.rst
 F: docs/system/i386/sgx.rst
 F: hw/i386/sgx*
+F: stubs/hmp-cmd-info_sev.c
 F: stubs/qmp-i386-sev.c
 F: stubs/qmp-i386-sgx.c
 F: target/i386/kvm/
diff --git a/stubs/hmp-cmd-info_sev.c b/stubs/hmp-cmd-info_sev.c
new file mode 100644
index 00000000000..f3624423a33
--- /dev/null
+++ b/stubs/hmp-cmd-info_sev.c
@@ -0,0 +1,16 @@
+/*
+ * Human Monitor 'info sev' stub (CONFIG_SEV)
+ *
+ * Copyright (c) Linaro
+ *
+ * SPDX-License-Identifier: GPL-2.0-or-later
+ */
+
+#include "qemu/osdep.h"
+#include "monitor/hmp.h"
+#include "monitor/monitor.h"
+
+void hmp_info_sev(Monitor *mon, const QDict *qdict)
+{
+    monitor_printf(mon, "SEV is not available in this QEMU\n");
+}
diff --git a/target/i386/sev-system-stub.c b/target/i386/sev-system-stub.c
index f799a338d60..d97536cca1c 100644
--- a/target/i386/sev-system-stub.c
+++ b/target/i386/sev-system-stub.c
@@ -31,11 +31,6 @@ int sev_es_save_reset_vector(void *flash_ptr, uint64_t flash_size)
     g_assert_not_reached();
 }
 
-void hmp_info_sev(Monitor *mon, const QDict *qdict)
-{
-    monitor_printf(mon, "SEV is not available in this QEMU\n");
-}
-
 void pc_system_parse_sev_metadata(uint8_t *flash_ptr, size_t flash_size)
 {
 }
diff --git a/hmp-commands-info.hx b/hmp-commands-info.hx
index da9fdc0ab7b..336ab870a2c 100644
--- a/hmp-commands-info.hx
+++ b/hmp-commands-info.hx
@@ -812,15 +812,14 @@ SRST
     enabled) memory in bytes.
 ERST
 
-#if defined(TARGET_I386)
     {
         .name       = "sev",
         .args_type  = "",
         .params     = "",
         .help       = "show SEV information",
         .cmd        = hmp_info_sev,
+        .arch_bitmask = QEMU_ARCH_I386,
     },
-#endif
 
 SRST
   ``info sev``
diff --git a/stubs/meson.build b/stubs/meson.build
index dc289e3a482..09e73ef8b73 100644
--- a/stubs/meson.build
+++ b/stubs/meson.build
@@ -84,6 +84,7 @@ if have_system
   stub_ss.add(files('qmp-cpu.c'))
   stub_ss.add(files('qmp-cpu-s390x.c'))
   stub_ss.add(files('qmp-cpu-s390x-kvm.c'))
+  stub_ss.add(files('hmp-cmd-info_sev.c'))
   stub_ss.add(files('hmp-cmds-hw-s390x.c'))
   stub_ss.add(files('hmp-cmds-target-i386.c'))
 endif
-- 
2.53.0