Use g_poll(3) instead of select(2). Well, this is kind of a cheat.
It's true that we're now using g_poll(3) on POSIX hosts but the *_fill()
and *_poll() functions are still using rfds/wfds/xfds.
We've set the scene to start converting *_fill() and *_poll() functions
step-by-step until no more rfds/wfds/xfds users remain. Then we'll drop
the temporary gpollfds_from_select() and gpollfds_to_select() functions
and be left with native g_poll(2).
On Windows things are a little crazy: convert from rfds/wfds/xfds to
GPollFDs, back to rfds/wfds/xfds, call select(2), rfds/wfds/xfds back to
GPollFDs, and finally back to rfds/wfds/xfds again. This is only
temporary and keeps the Windows build working through the following
patches. We'll drop this excessive conversion later and be left with a
single GPollFDs -> select(2) -> GPollFDs sequence that allows Windows to
use select(2) while the rest of QEMU only knows about GPollFD.
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Laszlo Ersek <lersek@redhat.com>
Message-id: 1361356113-11049-3-git-send-email-stefanha@redhat.com
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Test cases are scraped from Markus Kuhn's UTF-8 decoder capability and
stress test at
http://www.cl.cam.ac.uk/~mgk25/ucs/examples/UTF-8-test.txt
Unfortunately, both JSON parser and formatter misbehave right now.
This test expects current, incorrect results. They're all clearly
marked, and are to be replaced by correct ones as the bugs get fixed.
See comments in new utf8_string() for details.
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
# By Alin Tomescu (1) and others
# Via Stefan Hajnoczi
* stefanha/trivial-patches:
.gitignore: Ignore optionrom/*.asm
ppc: fix bamboo >256MB RAM initialization in hw/ppc4xx_devs.c
Add some missing qtest binaries to .gitignore
xilinx_axienet.c: Assert no error when making link
Remove forward declaration of non-existant variable
I was trying to launch a PowerPC "bamboo" machine with more than 256MB of RAM
with qemu-system-ppc -M bamboo -kernel $kernel -initrd $ramdisk -m 512, but QEMU
would just hang. However, when I used -m 256, the machine would boot.
I looked through the code in hw/ and it seems there is an error when the
RAM memory is setup (if my understanding is correct).
After patching it, the machine launched and booted successfully with 512MB of
RAM.
Signed-off-by: Alin Tomescu <tomescu.alin@gmail.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
These binaries are generated during make check on at least some
configurations, so att them to .gitignore.
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
This gives an awful silent failure when it doesn't work. Assert against link
creation failure.
Signed-off-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
This variable has been removed 5 years ago in 970ac5a308.
Signed-off-by: Hervé Poussineau <hpoussin@reactos.org>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
The shift and rotate insns use movcond to set CC_OP, and thus
achieve a conditional EFLAGS setting. By discarding CC_OP in
a later flags setting insn, we can discard that movcond.
Signed-off-by: Richard Henderson <rth@twiddle.net>
We weren't computing flags for lzcnt at all. At the same time,
adjust the implementation of bsf/bsr to avoid the local branch,
using movcond instead.
Signed-off-by: Richard Henderson <rth@twiddle.net>
Add streams support to the xhci emulation. No secondary streams yet,
only linear stream arays are supported for now.
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
This patch adds support for usb3 streams to the usb subsystem core.
This is just adding a streams field / parameter in a number of places.
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Fix the ordering of the endpoint descriptors for superspeed endpoints:
The superspeed companion must come first, possible additional
descriptors for the endpoint after that.
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
usb_packet_copy can handle combined packets now,
so it isn't needed to special-case them any more.
Also use the new usb_packet_size() function.
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
The code handling the "-usbdevice host:..." legacy command line
syntax is moved to the new hw/usb/host-legacy.c file.
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Leave the core usb devices (usb hub, tablet, mouse, keyboard)
enabled unconditionally. Make the other ones configurable.
Exceptions:
- bluetooth: not qdevified yet, has a vl.c dependency because
of that, thus disabling isn't as easy as not linking the
object file.
- smardcard: ccid-card-emulated depends on that one *and*
CONFIG_SMARTCARD_NSS. So it isn't a one-liner and comes
as separate patch because of that.
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Make it handle multiple include statements in a file:
(1) The printf needs a space so the include files will be separated.
(2) Also $f can contain multiple failes, so redirection will not work
and we have to use cat to process all files.
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
As this is the first of the BMI insns to be implemented,
this carries quite a bit more baggage than normal.
Signed-off-by: Richard Henderson <rth@twiddle.net>
Add another slot in ENV and store two of the three inputs. This lets us
do less work when carry-out is not needed, and avoids the unpredictable
CC_OP after translating these insns.
Signed-off-by: Richard Henderson <rth@twiddle.net>
Pass the data in explicitly, rather than indirectly via env.
This avoids all sorts of unnecessary register spillage.
Signed-off-by: Richard Henderson <rth@twiddle.net>
In preparation for making this a const helper.
By using the proper types in the parameters to the helper functions,
we get to avoid quite a lot of subsequent casting.
Signed-off-by: Richard Henderson <rth@twiddle.net>
After a comparison or subtraction, the original value of the LHS will
currently be reconstructed using an addition. However, in most cases
it is already available: store it in a temp-local variable and save 1
or 2 TCG ops (2 if the result of the addition needs to be extended).
The temp-local can be declared dead as soon as the cc_op changes again,
or also before the translation block ends because gen_prepare_cc will
always make a copy before returning it. All this magic, plus copy
propagation and dead-code elimination, ensures that the temp local will
(almost) never be spilled.
Example (cmp $0x21,%rax + jbe):
Before After
----------------------------------------------------------------------------
movi_i64 tmp1,$0x21 movi_i64 tmp1,$0x21
movi_i64 cc_src,$0x21 movi_i64 cc_src,$0x21
sub_i64 cc_dst,rax,tmp1 sub_i64 cc_dst,rax,tmp1
add_i64 tmp7,cc_dst,cc_src
movi_i32 cc_op,$0x11 movi_i32 cc_op,$0x11
brcond_i64 tmp7,cc_src,leu,$0x0 discard loc11
brcond_i64 rax,cc_src,leu,$0x0
Before After
----------------------------------------------------------------------------
mov (%r14),%rbp mov (%r14),%rbp
mov %rbp,%rbx mov %rbp,%rbx
sub $0x21,%rbx sub $0x21,%rbx
lea 0x21(%rbx),%r12
movl $0x11,0xa0(%r14) movl $0x11,0xa0(%r14)
movq $0x21,0x90(%r14) movq $0x21,0x90(%r14)
mov %rbx,0x98(%r14) mov %rbx,0x98(%r14)
cmp $0x21,%r12 | cmp $0x21,%rbp
jbe ... jbe ...
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Richard Henderson <rth@twiddle.net>
Placing the CC_OP_DYNAMIC at the join is less effective than
before the branch, as the branch will have forced global registers
to their home locations. This way we have a chance to discard
CC_SRC2 before it gets stored.
Signed-off-by: Richard Henderson <rth@twiddle.net>
A jump that ends a basic block or otherwise falls back to CC_OP_DYNAMIC
will always have to call gen_op_set_cc_op. However, not all jumps end
a basic block, so introduce a variant that does not do this.
This was partially undone earlier (i386: drop cc_op argument of gen_jcc1),
redo it now also to prepare for the introduction of src2.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Richard Henderson <rth@twiddle.net>
Replace low-level ops with a higher-level "cmp %al, (A0)" in the case
of scas, and "cmp T0, (A0)" in the case of cmps.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Richard Henderson <rth@twiddle.net>
