[PATCH qemu 23/38] block: add a model option for MTD devices

[Cédric Le Goater]

This could be used to define the flash model to use on some boards
definitions.

Signed-off-by: Cédric Le Goater <clg at kaod.org>
---
 blockdev.c                | 13 +++++++++++++
 include/sysemu/blockdev.h |  1 +
 qemu-options.hx           |  4 +++-
 3 files changed, 17 insertions(+), 1 deletion(-)

diff --git a/blockdev.c b/blockdev.c
index 245e1e1d177a..fcea923edf02 100644
--- a/blockdev.c
+++ b/blockdev.c
@@ -742,6 +742,10 @@ QemuOptsList qemu_legacy_drive_opts = {
             .type = QEMU_OPT_STRING,
             .help = "pci address (virtio only)",
         },{
+            .name = "model",
+            .type = QEMU_OPT_STRING,
+            .help = "flash model (mtd only)",
+        },{
             .name = "serial",
             .type = QEMU_OPT_STRING,
             .help = "disk serial number",
@@ -790,6 +794,7 @@ DriveInfo *drive_new(QemuOpts *all_opts, BlockInterfaceType block_default_type)
     bool read_only = false;
     bool copy_on_read;
     const char *serial;
+    const char *model;
     const char *filename;
     Error *local_err = NULL;
     int i;
@@ -1030,6 +1035,13 @@ DriveInfo *drive_new(QemuOpts *all_opts, BlockInterfaceType block_default_type)
         g_free(new_id);
     }
 
+   /* Add virtio block device */
+    model = qemu_opt_get(legacy_opts, "model");
+    if (model && type != IF_MTD) {
+        error_report("model is not supported by this bus type");
+        goto fail;
+    }
+
     /* Add virtio block device */
     devaddr = qemu_opt_get(legacy_opts, "addr");
     if (devaddr && type != IF_VIRTIO) {
@@ -1102,6 +1114,7 @@ DriveInfo *drive_new(QemuOpts *all_opts, BlockInterfaceType block_default_type)
     dinfo->unit = unit_id;
     dinfo->devaddr = devaddr;
     dinfo->serial = g_strdup(serial);
+    dinfo->model = g_strdup(model);
 
     blk_set_legacy_dinfo(blk, dinfo);
 
diff --git a/include/sysemu/blockdev.h b/include/sysemu/blockdev.h
index 16432f350805..10c66e5e86a4 100644
--- a/include/sysemu/blockdev.h
+++ b/include/sysemu/blockdev.h
@@ -39,6 +39,7 @@ struct DriveInfo {
     int cyls, heads, secs, trans;
     QemuOpts *opts;
     char *serial;
+    char *model;
     QTAILQ_ENTRY(DriveInfo) next;
 };
 
diff --git a/qemu-options.hx b/qemu-options.hx
index 4a5b29f349f7..16add85bd0f5 100644
--- a/qemu-options.hx
+++ b/qemu-options.hx
@@ -517,7 +517,7 @@ DEF("drive", HAS_ARG, QEMU_OPTION_drive,
     "-drive [file=file][,if=type][,bus=n][,unit=m][,media=d][,index=i]\n"
     "       [,cyls=c,heads=h,secs=s[,trans=t]][,snapshot=on|off]\n"
     "       [,cache=writethrough|writeback|none|directsync|unsafe][,format=f]\n"
-    "       [,serial=s][,addr=A][,rerror=ignore|stop|report]\n"
+    "       [,serial=s][,model=m][,addr=A][,rerror=ignore|stop|report]\n"
     "       [,werror=ignore|stop|report|enospc][,id=name][,aio=threads|native]\n"
     "       [,readonly=on|off][,copy-on-read=on|off]\n"
     "       [,discard=ignore|unmap][,detect-zeroes=on|off|unmap]\n"
@@ -570,6 +570,8 @@ the format.  Can be used to specify format=raw to avoid interpreting
 an untrusted format header.
 @item serial=@var{serial}
 This option specifies the serial number to assign to the device.
+ at item model=@var{model}
+This option specifies the model to use to create a flash device (if=mtd only).
 @item addr=@var{addr}
 Specify the controller's PCI address (if=virtio only).
 @item werror=@var{action},rerror=@var{action}
-- 
2.7.4