hd-geometry: Compute BIOS CHS translation in one place

Currently, it is split between hd_geometry_guess() and
pc_cmos_init_late().  Confusing.  info qtree shows the result of the
former.  Also confusing.

Fold the part done in pc_cmos_init_late() into hd_geometry_guess().

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>

1 files changed, 8 insertions, 1 deletions

diff --git a/hw/hd-geometry.c b/hw/hd-geometry.c
index 74678a6..1cdb9fb 100644
--- a/hw/hd-geometry.c
+++ b/hw/hd-geometry.c
@@ -125,7 +125,7 @@ void hd_geometry_guess(BlockDriverState *bs,
     if (guess_disk_lchs(bs, &cylinders, &heads, &secs) < 0) {
         /* no LCHS guess: use a standard physical disk geometry  */
         guess_chs_for_size(bs, pcyls, pheads, psecs);
-        translation = BIOS_ATA_TRANSLATION_AUTO;
+        translation = hd_bios_chs_auto_trans(*pcyls, *pheads, *psecs);
     } else if (heads > 16) {
         /* LCHS guess with heads > 16 means that a BIOS LBA
            translation was active, so a standard physical disk
@@ -148,3 +148,10 @@ void hd_geometry_guess(BlockDriverState *bs,
     }
     trace_hd_geometry_guess(bs, *pcyls, *pheads, *psecs, translation);
 }
+
+int hd_bios_chs_auto_trans(uint32_t cyls, uint32_t heads, uint32_t secs)
+{
+    return cyls <= 1024 && heads <= 16 && secs <= 63
+        ? BIOS_ATA_TRANSLATION_NONE
+        : BIOS_ATA_TRANSLATION_LBA;
+}