From 6703db131f832d6af58fa629be11c5efa5a6adb8 Mon Sep 17 00:00:00 2001
From: Cornelia Huck <cohuck@redhat.com>
Date: Fri, 6 Jul 2018 15:06:20 +0200
Subject: Revert "block: Remove deprecated -drive geometry options"

This reverts commit a7aff6dd10b16b67e8b142d0c94c5d92c3fe88f6.

Hold off removing this for one more QEMU release (current libvirt
release still uses it.)

Signed-off-by: Cornelia Huck <cohuck@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
---
 blockdev.c | 75 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++-
 1 file changed, 74 insertions(+), 1 deletion(-)

(limited to 'blockdev.c')

diff --git a/blockdev.c b/blockdev.c
index c23587b075..dcf8c8d2ab 100644
--- a/blockdev.c
+++ b/blockdev.c
@@ -730,6 +730,22 @@ QemuOptsList qemu_legacy_drive_opts = {
             .name = "if",
             .type = QEMU_OPT_STRING,
             .help = "interface (ide, scsi, sd, mtd, floppy, pflash, virtio)",
+        },{
+            .name = "cyls",
+            .type = QEMU_OPT_NUMBER,
+            .help = "number of cylinders (ide disk geometry)",
+        },{
+            .name = "heads",
+            .type = QEMU_OPT_NUMBER,
+            .help = "number of heads (ide disk geometry)",
+        },{
+            .name = "secs",
+            .type = QEMU_OPT_NUMBER,
+            .help = "number of sectors (ide disk geometry)",
+        },{
+            .name = "trans",
+            .type = QEMU_OPT_STRING,
+            .help = "chs translation (auto, lba, none)",
         },{
             .name = "addr",
             .type = QEMU_OPT_STRING,
@@ -776,6 +792,7 @@ DriveInfo *drive_new(QemuOpts *all_opts, BlockInterfaceType block_default_type)
     QemuOpts *legacy_opts;
     DriveMediaType media = MEDIA_DISK;
     BlockInterfaceType type;
+    int cyls, heads, secs, translation;
     int max_devs, bus_id, unit_id, index;
     const char *devaddr;
     const char *werror, *rerror;
@@ -786,7 +803,7 @@ DriveInfo *drive_new(QemuOpts *all_opts, BlockInterfaceType block_default_type)
     Error *local_err = NULL;
     int i;
     const char *deprecated[] = {
-        "serial", "addr"
+        "serial", "trans", "secs", "heads", "cyls", "addr"
     };
 
     /* Change legacy command line options into QMP ones */
@@ -915,6 +932,57 @@ DriveInfo *drive_new(QemuOpts *all_opts, BlockInterfaceType block_default_type)
         type = block_default_type;
     }
 
+    /* Geometry */
+    cyls  = qemu_opt_get_number(legacy_opts, "cyls", 0);
+    heads = qemu_opt_get_number(legacy_opts, "heads", 0);
+    secs  = qemu_opt_get_number(legacy_opts, "secs", 0);
+
+    if (cyls || heads || secs) {
+        if (cyls < 1) {
+            error_report("invalid physical cyls number");
+            goto fail;
+        }
+        if (heads < 1) {
+            error_report("invalid physical heads number");
+            goto fail;
+        }
+        if (secs < 1) {
+            error_report("invalid physical secs number");
+            goto fail;
+        }
+    }
+
+    translation = BIOS_ATA_TRANSLATION_AUTO;
+    value = qemu_opt_get(legacy_opts, "trans");
+    if (value != NULL) {
+        if (!cyls) {
+            error_report("'%s' trans must be used with cyls, heads and secs",
+                         value);
+            goto fail;
+        }
+        if (!strcmp(value, "none")) {
+            translation = BIOS_ATA_TRANSLATION_NONE;
+        } else if (!strcmp(value, "lba")) {
+            translation = BIOS_ATA_TRANSLATION_LBA;
+        } else if (!strcmp(value, "large")) {
+            translation = BIOS_ATA_TRANSLATION_LARGE;
+        } else if (!strcmp(value, "rechs")) {
+            translation = BIOS_ATA_TRANSLATION_RECHS;
+        } else if (!strcmp(value, "auto")) {
+            translation = BIOS_ATA_TRANSLATION_AUTO;
+        } else {
+            error_report("'%s' invalid translation type", value);
+            goto fail;
+        }
+    }
+
+    if (media == MEDIA_CDROM) {
+        if (cyls || secs || heads) {
+            error_report("CHS can't be set with media=cdrom");
+            goto fail;
+        }
+    }
+
     /* Device address specified by bus/unit or index.
      * If none was specified, try to find the first free one. */
     bus_id  = qemu_opt_get_number(legacy_opts, "bus", 0);
@@ -1037,6 +1105,11 @@ DriveInfo *drive_new(QemuOpts *all_opts, BlockInterfaceType block_default_type)
     dinfo = g_malloc0(sizeof(*dinfo));
     dinfo->opts = all_opts;
 
+    dinfo->cyls = cyls;
+    dinfo->heads = heads;
+    dinfo->secs = secs;
+    dinfo->trans = translation;
+
     dinfo->type = type;
     dinfo->bus = bus_id;
     dinfo->unit = unit_id;
-- 
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