<s>
PowerVM	B-Device
Lx86	I-Device
was	O
a	O
binary	O
translation	O
layer	O
for	O
IBM	O
's	O
System	B-Device
p	I-Device
servers	O
.	O
</s>
<s>
It	O
enabled	O
32-bit	O
x86	B-Operating_System
Linux	B-Application
binaries	B-Application
to	O
run	O
unmodified	O
on	O
the	O
Power	O
ISA-based	O
hardware	O
.	O
</s>
<s>
IBM	O
used	O
this	O
feature	O
to	O
migrate	O
x86	B-Operating_System
Linux	B-Application
servers	O
to	O
the	O
PowerVM	B-Application
virtualized	B-General_Concept
environment	O
;	O
it	O
was	O
supported	O
on	O
all	O
POWER5	B-Device
and	O
POWER6	B-Device
hardware	O
as	O
well	O
as	O
BladeCenter	O
JS21	O
and	O
JS22	O
systems	O
.	O
</s>
<s>
In	O
contrast	O
to	O
regular	O
emulators	B-Application
only	O
the	O
instructions	O
are	O
translated	O
,	O
not	O
the	O
entire	O
system	O
,	O
thus	O
making	O
it	O
fast	O
and	O
flexible	O
.	O
</s>
<s>
The	O
Lx86	B-Device
software	O
senses	O
that	O
it	O
is	O
executing	B-General_Concept
x86	B-Operating_System
code	O
and	O
translates	O
it	O
to	O
PowerPC	B-Architecture
code	O
at	O
execution	O
,	O
and	O
these	O
instructions	O
are	O
later	O
cached	B-General_Concept
ensuring	O
that	O
the	O
translation	O
process	O
only	O
has	O
to	O
take	O
place	O
once	O
,	O
further	O
reducing	O
the	O
drop	O
in	O
performance	O
usually	O
associated	O
with	O
emulation	B-Application
.	O
</s>
<s>
Lx86	B-Device
does	O
not	O
support	O
applications	O
that	O
access	O
hardware	O
directly	O
,	O
like	O
kernel	B-Operating_System
modules	O
.	O
</s>
<s>
Earlier	O
versions	O
of	O
Lx86	B-Device
did	O
not	O
run	O
code	O
that	O
makes	O
use	O
of	O
SSE	B-General_Concept
instructions	I-General_Concept
,	O
though	O
as	O
of	O
version	O
1.3.2	O
the	O
SSE	B-General_Concept
and	O
SSE2	B-General_Concept
instruction	O
sets	O
were	O
supported	O
.	O
</s>
<s>
The	O
product	O
was	O
at	O
first	O
marketed	O
as	O
System	B-Device
p	I-Device
AVE	I-Device
(	O
System	B-Device
p	I-Device
Application	I-Device
Virtual	I-Device
Environment	I-Device
)	O
and	O
was	O
incorrectly	O
reported	O
as	O
PAVE	O
(	O
Portable	B-Device
Advanced	I-Device
Virtualization	I-Device
Emulator	I-Device
)	O
in	O
the	O
press	O
but	O
the	O
name	O
has	O
since	O
changed	O
to	O
PowerVM	B-Device
Lx86	I-Device
.	O
</s>
<s>
Lx86	B-Device
was	O
based	O
on	O
the	O
QuickTransit	O
dynamic	O
translator	O
from	O
Transitive	O
,	O
the	O
same	O
that	O
Apple	O
uses	O
for	O
its	O
Rosetta	B-Operating_System
emulation	B-Application
layer	O
that	O
enables	O
Mac	B-Operating_System
OS	I-Operating_System
X	I-Operating_System
to	O
run	O
unmodified	O
PowerPC	B-Architecture
binaries	B-Application
on	O
their	O
Intel-based	B-Device
Macintoshes	I-Device
.	O
</s>
<s>
All	O
versions	O
and	O
releases	O
of	O
the	O
Lx86	B-Device
product	O
were	O
withdrawn	O
from	O
marketing	O
in	O
September	O
2011	O
,	O
with	O
support	O
discontinued	O
in	O
April	O
2013	O
.	O
</s>
