[PATCH v5 29/50] multi-process: add parse_cmdline in remote process

[Jagannathan Raman]

From: Elena Ufimtseva <address@hidden>

Signed-off-by: Elena Ufimtseva <address@hidden>
Signed-off-by: Jagannathan Raman <address@hidden>
Signed-off-by: John G Johnson <address@hidden>
---
 remote/Makefile.objs |  1 +
 remote/remote-main.c | 11 ++++++
 remote/remote-opts.c | 99 ++++++++++++++++++++++++++++++++++++++++++++++++++++
 remote/remote-opts.h | 15 ++++++++
 4 files changed, 126 insertions(+)
 create mode 100644 remote/remote-opts.c
 create mode 100644 remote/remote-opts.h

diff --git a/remote/Makefile.objs b/remote/Makefile.objs
index c1349ad..a677fce 100644
--- a/remote/Makefile.objs
+++ b/remote/Makefile.objs
@@ -1,4 +1,5 @@
 remote-pci-obj-$(CONFIG_MPQEMU) += remote-main.o
+remote-pci-obj-$(CONFIG_MPQEMU) += remote-opts.o
 remote-pci-obj-$(CONFIG_MPQEMU) += pcihost.o
 remote-pci-obj-$(CONFIG_MPQEMU) += machine.o
 remote-pci-obj-$(CONFIG_MPQEMU) += iohub.o
diff --git a/remote/remote-main.c b/remote/remote-main.c
index ec1ce2c..872ff7e 100644
--- a/remote/remote-main.c
+++ b/remote/remote-main.c
@@ -52,6 +52,7 @@
 #include "qapi/qmp/qlist.h"
 #include "qemu/log.h"
 #include "qemu/cutils.h"
+#include "remote-opts.h"
 
 static MPQemuLinkState *mpqemu_link;
 PCIDevice *remote_pci_dev;
@@ -429,6 +430,13 @@ int main(int argc, char *argv[])
 
     current_machine = MACHINE(REMOTE_MACHINE(object_new(TYPE_REMOTE_MACHINE)));
 
+    qemu_add_opts(&qemu_device_opts);
+    qemu_add_opts(&qemu_drive_opts);
+    qemu_add_drive_opts(&qemu_legacy_drive_opts);
+    qemu_add_drive_opts(&qemu_common_drive_opts);
+    qemu_add_drive_opts(&qemu_drive_opts);
+    qemu_add_drive_opts(&bdrv_runtime_opts);
+
     mpqemu_link = mpqemu_link_create();
     if (!mpqemu_link) {
         printf("Could not create MPQemu link\n");
@@ -442,6 +450,9 @@ int main(int argc, char *argv[])
     }
 
     mpqemu_init_channel(mpqemu_link, &mpqemu_link->com, fd);
+
+    parse_cmdline(argc - 2, argv + 2, NULL);
+
     mpqemu_link_set_callback(mpqemu_link, process_msg);
 
     mpqemu_start_coms(mpqemu_link);
diff --git a/remote/remote-opts.c b/remote/remote-opts.c
new file mode 100644
index 0000000..7e12700
--- /dev/null
+++ b/remote/remote-opts.c
@@ -0,0 +1,99 @@
+/*
+ * Copyright © 2018, 2020 Oracle and/or its affiliates.
+ *
+ * This work is licensed under the terms of the GNU GPL, version 2 or later.
+ * See the COPYING file in the top-level directory.
+ *
+ */
+
+#include "qemu/osdep.h"
+#include "qemu-common.h"
+
+#include <stdio.h>
+#include <unistd.h>
+
+#include "qemu/module.h"
+#include "qapi/error.h"
+#include "qemu/error-report.h"
+#include "qemu-common.h"
+
+#include "remote/pcihost.h"
+#include "remote/machine.h"
+#include "hw/boards.h"
+#include "hw/qdev-core.h"
+#include "qemu/main-loop.h"
+#include "remote/memory.h"
+#include "io/mpqemu-link.h"
+#include "qapi/error.h"
+#include "qemu-options.h"
+#include "sysemu/arch_init.h"
+
+#include "qapi/qmp/qjson.h"
+#include "qapi/qmp/qobject.h"
+#include "qemu/option.h"
+#include "qemu/config-file.h"
+#include "monitor/qdev.h"
+#include "qapi/qmp/qdict.h"
+#include "sysemu/sysemu.h"
+#include "sysemu/blockdev.h"
+#include "block/block.h"
+#include "remote/remote-opts.h"
+#include "include/qemu-common.h"
+
+#include "vl.h"
+/*
+ * In remote process, we parse only subset of options. The code
+ * taken from vl.c to re-use in remote command line parser.
+ */
+void parse_cmdline(int argc, char **argv, char **envp)
+{
+    int optind;
+    const char *optarg;
+    MachineClass *mc;
+
+    /* from vl.c */
+    optind = 0;
+
+    /* second pass of option parsing */
+
+    for (;;) {
+        if (optind >= argc) {
+            break;
+        }
+        if (argv[optind][0] != '-') {
+            loc_set_cmdline(argv, optind, 1);
+            drive_add(IF_DEFAULT, 0, argv[optind++], HD_OPTS);
+        } else {
+            const QEMUOption *popt;
+
+            popt = lookup_opt(argc, argv, &optarg, &optind);
+            #ifndef REMOTE_PROCESS
+            if (!(popt->arch_mask & arch_type)) {
+                error_report("Option not supported for this target, %x 
arch_mask, %x arch_type",
+                             popt->arch_mask, arch_type);
+                exit(1);
+            }
+            #endif
+            switch (popt->index) {
+            case QEMU_OPTION_drive:
+                if (drive_def(optarg) == NULL) {
+                    fprintf(stderr, "Could not init drive\n");
+                    exit(1);
+                }
+                break;
+            default:
+                break;
+            }
+        }
+    }
+    mc = MACHINE_GET_CLASS(current_machine);
+
+    mc->block_default_type = IF_IDE;
+    if (qemu_opts_foreach(qemu_find_opts("drive"), drive_init_func,
+                          &mc->block_default_type, &error_fatal)) {
+        /* We printed help */
+        exit(0);
+    }
+
+    return;
+}
diff --git a/remote/remote-opts.h b/remote/remote-opts.h
new file mode 100644
index 0000000..263d428
--- /dev/null
+++ b/remote/remote-opts.h
@@ -0,0 +1,15 @@
+/*
+ * Copyright © 2018, 2020 Oracle and/or its affiliates.
+ *
+ * This work is licensed under the terms of the GNU GPL, version 2 or later.
+ * See the COPYING file in the top-level directory.
+ *
+ */
+
+#ifndef REMOTE_OPTS_H
+#define REMOTE_OPTS_H
+
+void parse_cmdline(int argc, char **argv, char **envp);
+
+#endif
+
-- 
1.8.3.1