[qemu-kvm][PATCH] Add "sda" alias options to "hda" options

[Ozawa Tsuyoshi <ozadev@t-oza.net>]

qemu-kvm: Add "sda" alias options to "hda" options

I know that the name "hda" come from IDE drive, but I felt strange
when I use qemu to boot linux kernel directly as follows:

$ qemu-system-x86 -kernel vmlinux-2.6.28.15 -initrd
initrd.img-2.6.28.15 -hda vdisk.img

By applying this patch,  the command will change to:

$ qemu-system-x86 -kernel vmlinux-2.6.28.15 -initrd
initrd.img-2.6.28.15 -sda vdisk.img

The latter one seems to be more intuitive for me.

diff --git a/qemu-options.hx b/qemu-options.hx
index c1ec976..91cd931 100644
--- a/qemu-options.hx
+++ b/qemu-options.hx
@@ -68,6 +68,13 @@ Use @var{file} as floppy disk 0/1 image
(@pxref{disk_images}). You can
 use the host floppy by using @file{/dev/fd0} as filename (@pxref{host_drives}).
 ETEXI

+DEF("sda", HAS_ARG, QEMU_OPTION_sda,
+    "-sda/-sdb file  use 'file' as IDE hard disk 0/1 image\n")
+DEF("sdb", HAS_ARG, QEMU_OPTION_sdb, "")
+DEF("sdc", HAS_ARG, QEMU_OPTION_sdc,
+    "-sdc/-sdd file  use 'file' as IDE hard disk 2/3 image\n")
+DEF("sdd", HAS_ARG, QEMU_OPTION_sdd, "")
+
 DEF("hda", HAS_ARG, QEMU_OPTION_hda,
     "-hda/-hdb file  use 'file' as IDE hard disk 0/1 image\n")
 DEF("hdb", HAS_ARG, QEMU_OPTION_hdb, "")
diff --git a/vl.c b/vl.c
index 3485ce6..62d1d91 100644
--- a/vl.c
+++ b/vl.c
@@ -5085,6 +5085,7 @@ int main(int argc, char **argv, char **envp)
                 initrd_filename = optarg;
                 break;
             case QEMU_OPTION_hda:
+            case QEMU_OPTION_sda:
                 if (cyls == 0)
                     hda_opts = drive_add(optarg, HD_ALIAS, 0);
                 else
@@ -5096,6 +5097,9 @@ int main(int argc, char **argv, char **envp)
                              translation == BIOS_ATA_TRANSLATION_NONE ?
                                  ",trans=none" : "");
                  break;
+            case QEMU_OPTION_sdb:
+            case QEMU_OPTION_sdc:
+            case QEMU_OPTION_sdd:
             case QEMU_OPTION_hdb:
             case QEMU_OPTION_hdc:
             case QEMU_OPTION_hdd:
-- 
Tsuyoshi Ozawa
<ozawa@t-oza.net>