Move the last found TB to the head of the list so it will be found more
quickly next time it will be looked for.
Signed-off-by: Kirill Batuzov batuz...@ispras.ru
Signed-off-by: Pavel Yushchenko p...@ispras.ru
---
Hello. This patch gives significant boost to a used by us rather rich
Move the last found TB to the head of the list so it will be found more quickly
next time it will be looked for.
Signed-off-by: Kirill Batuzov batuz...@ispras.ru
Signed-off-by: Pavel Yushchenko p...@ispras.ru
---
This patch appeared during investigation of performance issues with
S5PC110
On 04.12.2010 23:11, Blue Swirl wrote:
On Thu, Dec 2, 2010 at 1:12 PM, Kirill Batuzovbatuz...@ispras.ru wrote:
Move the last found TB to the head of the list so it will be found more quickly
next time it will be looked for.
Signed-off-by: Kirill Batuzovbatuz...@ispras.ru
Signed-off-by: Pavel
1760.496 1936.387 -0.29%
256.bzip2 1007.658 1007.682 1007.316 1007.982 1007.747 1007.682 0.68%
300.twolf 1334.139 1333.791 1333.795 1334.147 1333.732 1333.795 0.67%
ARM guests for 254.gap and 255.vortex and x86_64 guest for 252.eon does not
work under QEMU for some unrelated reason.
Kirill
Added file tcg/optimize.c to hold TCG optimizations. Function tcg_optimize
is called from tcg_gen_code_common. It calls other functions performing
specific optimizations. Stub for constant folding was added.
Signed-off-by: Kirill Batuzov batuz...@ispras.ru
---
Makefile.target |2 +-
tcg
Perform constant folding for NOT and EXT{8,16,32}{S,U} operations.
Signed-off-by: Kirill Batuzov batuz...@ispras.ru
---
tcg/optimize.c | 82
1 files changed, 82 insertions(+), 0 deletions(-)
diff --git a/tcg/optimize.c b/tcg/optimize.c
Perform constant forlding for SHR, SHL, SAR, ROTR, ROTL operations.
Signed-off-by: Kirill Batuzov batuz...@ispras.ru
---
tcg/optimize.c | 87
1 files changed, 87 insertions(+), 0 deletions(-)
diff --git a/tcg/optimize.c b/tcg/optimize.c
Perform constant folding for AND, OR, XOR operations.
Signed-off-by: Kirill Batuzov batuz...@ispras.ru
---
tcg/optimize.c | 58
1 files changed, 58 insertions(+), 0 deletions(-)
diff --git a/tcg/optimize.c b/tcg/optimize.c
index 4073f05
Make tcg_constant_folding do copy and constant propagation. It is a
preparational work before actual constant folding.
Signed-off-by: Kirill Batuzov batuz...@ispras.ru
---
tcg/optimize.c | 123
1 files changed, 123 insertions(+), 0
Perform actual constant folding for ADD, SUB and MUL operations.
Signed-off-by: Kirill Batuzov batuz...@ispras.ru
---
tcg/optimize.c | 102
1 files changed, 102 insertions(+), 0 deletions(-)
diff --git a/tcg/optimize.c b/tcg/optimize.c
On 21.05.2011 14:46, Aurelien Jarno wrote:
We definitely need to rewrite/improve the register allocator to save a
global back to memory when it is not used later in the TB. I am
currently working on that, I hope to have something ready soon.
I think I have this done already. The patches need
Spill globals early if their next use is in call. They'll be spilled
anyway in this case.
Signed-off-by: Kirill Batuzov batuz...@ispras.ru
---
tcg/tcg.c | 18 ++
1 files changed, 18 insertions(+), 0 deletions(-)
diff --git a/tcg/tcg.c b/tcg/tcg.c
index 8ab556d..ad5bd71 100644
Keep track of where is the next call for each TCG operation.
Signed-off-by: Kirill Batuzov batuz...@ispras.ru
---
tcg/tcg.c | 11 +++
tcg/tcg.h |2 ++
2 files changed, 13 insertions(+), 0 deletions(-)
diff --git a/tcg/tcg.c b/tcg/tcg.c
index 61689e2..799b245 100644
--- a/tcg/tcg.c
Propagate next use of each register through process of register allocation.
This would be needed to do a better spill choice.
Signed-off-by: Kirill Batuzov batuz...@ispras.ru
---
tcg/tcg.c | 36 +---
1 files changed, 33 insertions(+), 3 deletions(-)
diff --git
Compute next use for each operation argument.
Signed-off-by: Kirill Batuzov batuz...@ispras.ru
---
tcg/tcg.c | 73 -
tcg/tcg.h |4 +++
2 files changed, 71 insertions(+), 6 deletions(-)
diff --git a/tcg/tcg.c b/tcg/tcg.c
index
Gather generated spills statistics. It is useful for debugging and evaluating
of new register allocator.
Signed-off-by: Kirill Batuzov batuz...@ispras.ru
---
tcg/tcg.c | 69 +
tcg/tcg.h |6 +
2 files changed, 75 insertions
Spill globals early if their next use is at the BB end. They'll be spilled
anyway in this case.
Signed-off-by: Kirill Batuzov batuz...@ispras.ru
---
tcg/tcg.c | 13 +
1 files changed, 9 insertions(+), 4 deletions(-)
diff --git a/tcg/tcg.c b/tcg/tcg.c
index ad5bd71..022eef9 100644
Adjust next use for call-clobbered registers.
Signed-off-by: Kirill Batuzov batuz...@ispras.ru
---
tcg/tcg.c | 12
1 files changed, 12 insertions(+), 0 deletions(-)
diff --git a/tcg/tcg.c b/tcg/tcg.c
index 799b245..8ab556d 100644
--- a/tcg/tcg.c
+++ b/tcg/tcg.c
@@ -2125,6 +2125,9
because it seems
other people are working on the same thing and I'd like to avoid unnecessary
work duplication if possible.
Kirill Batuzov (8):
Compute additional liveness information for register allocator.
Propagate REG_NEXT_USE value through process of register allocation.
Do better spill
Choose register with farthest next use for spilling.
Signed-off-by: Kirill Batuzov batuz...@ispras.ru
---
tcg/tcg.c | 21 +
1 files changed, 21 insertions(+), 0 deletions(-)
diff --git a/tcg/tcg.c b/tcg/tcg.c
index c6e920e..61689e2 100644
--- a/tcg/tcg.c
+++ b/tcg/tcg.c
On Mon, 23 May 2011, Aurelien Jarno wrote:
Thanks for this patch series. Your approach to solve this issue is
really different than mine. Instead I added more state to the dead/live
states, and use them to mark some input deads even for global, and mark
some output arguments to be synced.
On Tue, 24 May 2011, Laurent Desnogues wrote:
On Tue, May 24, 2011 at 1:31 PM, Kirill Batuzov batuz...@ispras.ru wrote:
[...]
Gathered statistics shows some interesting things too. I've run matrix
multiplication benchmark (guest - ARM, host - x86, linux-user mode, with
my patches
On Fri, 20 May 2011, Richard Henderson wrote:
On 05/20/2011 05:39 AM, Kirill Batuzov wrote:
+case INDEX_op_sar_i32:
+#if TCG_TARGET_REG_BITS == 64
+x = 0x;
+y = 0x;
+#endif
+r = x 0x8000;
+x = ~0x8000;
+x
Perform actual constant folding for ADD, SUB and MUL operations.
Signed-off-by: Kirill Batuzov batuz...@ispras.ru
---
tcg/optimize.c | 156
1 files changed, 156 insertions(+), 0 deletions(-)
diff --git a/tcg/optimize.c b/tcg/optimize.c
Perform constant forlding for SHR, SHL, SAR, ROTR, ROTL operations.
Signed-off-by: Kirill Batuzov batuz...@ispras.ru
---
tcg/optimize.c | 86
1 files changed, 86 insertions(+), 0 deletions(-)
diff --git a/tcg/optimize.c b/tcg/optimize.c
Make tcg_constant_folding do copy and constant propagation. It is a
preparational work before actual constant folding.
Signed-off-by: Kirill Batuzov batuz...@ispras.ru
---
tcg/optimize.c | 161
1 files changed, 161 insertions(+), 0
Perform constant folding for AND, OR, XOR operations.
Signed-off-by: Kirill Batuzov batuz...@ispras.ru
---
tcg/optimize.c | 56
1 files changed, 56 insertions(+), 0 deletions(-)
diff --git a/tcg/optimize.c b/tcg/optimize.c
index 29da6fa
Perform constant folding for NOT and EXT{8,16,32}{S,U} operations.
Signed-off-by: Kirill Batuzov batuz...@ispras.ru
---
tcg/optimize.c | 83
1 files changed, 83 insertions(+), 0 deletions(-)
diff --git a/tcg/optimize.c b/tcg/optimize.c
expression simplifications into independent switch.
- Let compiler handle signed shifts and sign/zero extends in it's
implementation defined way.
Kirill Batuzov (6):
Add TCG optimizations stub
Add copy and constant propagation.
Do constant folding for basic arithmetic operations.
Do
Added file tcg/optimize.c to hold TCG optimizations. Function tcg_optimize
is called from tcg_gen_code_common. It calls other functions performing
specific optimizations. Stub for constant folding was added.
Signed-off-by: Kirill Batuzov batuz...@ispras.ru
---
Makefile.target |2 +-
tcg
flush of all temps is only needed at labels.
Not much better unfortunately. Globals got spilled at basic block end,
temps just die. The only things we can keep are locals but I have not
seen much of them in the intermediate representation.
Kirill Batuzov
to reduce amount of ifdefdsi. Checkpatch is not
happy about this change but I do not think spaces would be appropriate here.
- Some constraints during copy propagation are relaxed.
- Functions tcg_opt_gen_mov and tcg_opt_gen_movi are introduced to reduce code
duplication.
Kirill Batuzov (6
Perform constant folding for NOT and EXT{8,16,32}{S,U} operations.
Signed-off-by: Kirill Batuzov batuz...@ispras.ru
---
tcg/optimize.c | 59
1 files changed, 59 insertions(+), 0 deletions(-)
diff --git a/tcg/optimize.c b/tcg/optimize.c
Make tcg_constant_folding do copy and constant propagation. It is a
preparational work before actual constant folding.
Signed-off-by: Kirill Batuzov batuz...@ispras.ru
---
tcg/optimize.c | 182 +++-
1 files changed, 180 insertions(+), 2
Perform constant folding for AND, OR, XOR operations.
Signed-off-by: Kirill Batuzov batuz...@ispras.ru
---
tcg/optimize.c | 37 +
1 files changed, 37 insertions(+), 0 deletions(-)
diff --git a/tcg/optimize.c b/tcg/optimize.c
index 42a1bda..c469952 100644
Perform actual constant folding for ADD, SUB and MUL operations.
Signed-off-by: Kirill Batuzov batuz...@ispras.ru
---
tcg/optimize.c | 125
1 files changed, 125 insertions(+), 0 deletions(-)
diff --git a/tcg/optimize.c b/tcg/optimize.c
Added file tcg/optimize.c to hold TCG optimizations. Function tcg_optimize
is called from tcg_gen_code_common. It calls other functions performing
specific optimizations. Stub for constant folding was added.
Signed-off-by: Kirill Batuzov batuz...@ispras.ru
---
Makefile.target |2 +-
tcg
Perform constant forlding for SHR, SHL, SAR, ROTR, ROTL operations.
Signed-off-by: Kirill Batuzov batuz...@ispras.ru
---
tcg/optimize.c | 72
1 files changed, 72 insertions(+), 0 deletions(-)
diff --git a/tcg/optimize.c b/tcg/optimize.c
On Thu, 7 Jul 2011, Peter Maydell wrote:
On 7 July 2011 13:37, Kirill Batuzov batuz...@ispras.ru wrote:
ARM guests for 254.gap and 255.vortex and x86_64 guest for 252.eon does not
work under QEMU for some unrelated reason.
If you can provide a binary and a command line for these I can
Ping?
Somebody please review this patch...
And whom should I Cc in case of changes to tcg/ ? File MAINTAINERS lists
only qemu-devel for this subsystem.
On Fri, 2 Mar 2012, Kirill Batuzov wrote:
Currently large memory chunk allocation with tcg_malloc is broken. An attempt
to allocate
On Thu, 29 Mar 2012, Peter A. G. Crosthwaite wrote:
Device model for Primecell PL330 dma controller.
Signed-off-by: Peter A. G. Crosthwaite peter.crosthwa...@petalogix.com
---
Signed-off-by: Kirill Batuzov batuz...@ispras.ru
+static int PL330Fifo_get(PL330Fifo *s, uint8_t *buf, int len
and is allocated unconditionally
for each translation block.
Kirill Batuzov (1):
Fix large memory chunks allocation with tcg_malloc.
tcg/tcg.c | 14 +-
tcg/tcg.h |2 +-
2 files changed, 10 insertions(+), 6 deletions(-)
---
diff --git a/tcg/tcg.c b/tcg/tcg.c
index 351a0a3
can not reuse them.
Signed-off-by: Kirill Batuzov batuz...@ispras.ru
---
tcg/tcg.c | 14 +-
tcg/tcg.h |2 +-
2 files changed, 10 insertions(+), 6 deletions(-)
diff --git a/tcg/tcg.c b/tcg/tcg.c
index 351a0a3..7db8340 100644
--- a/tcg/tcg.c
+++ b/tcg/tcg.c
@@ -173,11 +173,9
clarify that I found this issue when I was writing
an unrelated modification to the register allocator which required large memory
allocations. Current code in TCG probably never does such allocations
and does not trigger memory corruption.
--
Kirill Batuzov
:
qemu-system-x86_64 -cdrom install-amd64-minimal-20121013.iso
--
Kirill BatuzovFrom 33e1fc03934cebea8d32c98ea34961c80f05d94a Mon Sep 17 00:00:00 2001
From: Kirill Batuzov batuz...@ispras.ru
Date: Wed, 7 Nov 2012 15:26:38 +0400
Subject: [PATCH] tcg: properly check that op's output needs to be synced
On Tue, 12 Aug 2014, Fam Zheng wrote:
On Mon, 08/11 19:38, 吴兴博 wrote:
Hello,
The introduction in the wiki page present several advantages of qcow2
[1]. But I'm a little confused. I really appreciate if any one can give me
some help on this :).
(1) Currently the raw format
On Thu, 27 Mar 2014, alex.ben...@linaro.org wrote:
From: Alex Bennée alex.ben...@linaro.org
This allows the perf tool to map samples to each individual translation
block. This could be expanded for user space but currently it gives
enough information to find any hotblocks by other means.
On 28.03.2014 20:34, Alex Bennée wrote:
@@ -2575,6 +2579,8 @@ static inline int
tcg_gen_code_common(TCGContext *s, uint64_t target_pc,
the_end:
/* Generate TB finalization at the end of block */
tcg_out_tb_finalize(s);
+
+tcg_write_perfmap(gen_code_buf, s-code_ptr -
Fields name (created with strdup in new_entry) and pathname
(created with g_strdup_printf in new_entry) of pathelem struct should
be freed before the whole struct is.
Signed-off-by: Kirill Batuzov batuz...@ispras.ru
---
util/path.c |4 +++-
1 file changed, 3 insertions(+), 1 deletion
On Wed, 18 Jun 2014, Peter Crosthwaite wrote:
From: Andreas Färber afaer...@suse.de
Replace qemu_allocate_irqs(foo, bar, 1)[0]
with qemu_allocate_irq(foo, bar, 0).
This avoids leaking the dereferenced qemu_irq *.
Cc: Kirill Batuzov batuz...@ispras.ru
Cc: Markus Armbruster arm
On Wed, 25 Jun 2014, Igor Mammedov wrote:
+if (ram_size) {
+object_property_set_int(OBJECT(current_machine), ram_size,
+MACHINE_MEMORY_SIZE_OPT, local_err);
+if (local_err) {
+error_report(%s, error_get_pretty(local_err));
+
Zheng f...@redhat.com
Signed-off-by: Kirill Batuzov batuz...@ispras.ru
Signed-off-by: Nikita Belov zod...@ispras.ru
---
qemu-char.c |1 +
1 file changed, 1 insertion(+)
diff --git a/qemu-char.c b/qemu-char.c
index 2e50a10..17bd360 100644
--- a/qemu-char.c
+++ b/qemu-char.c
@@ -94,6 +94,7
leak.
Signed-off-by: Kirill Batuzov batuz...@ispras.ru
---
hw/acpi/pcihp.c | 23 ++-
1 file changed, 6 insertions(+), 17 deletions(-)
diff --git a/hw/acpi/pcihp.c b/hw/acpi/pcihp.c
index f80c480..ff44aec 100644
--- a/hw/acpi/pcihp.c
+++ b/hw/acpi/pcihp.c
@@ -61,24 +61,11
Error set by error_set is dynamically allocated and needs to be cleared
properly later. graphic_console_init neither needs error descriptions nor frees
them. Pass NULL instead of actual pointers to avoid unnecessary memory
allocations.
Signed-off-by: Kirill Batuzov batuz...@ispras.ru
---
ui
platforms. The following testcases cover all
changed lines:
qemu-system-ppc -M prep
qemu-system-i386 -vga qxl
qemu-system-i386 -M isapc -soundhw adlib -device ib700,id=watchdog0,bus=isa.0
Signed-off-by: Kirill Batuzov batuz...@ispras.ru
---
hw/audio/adlib.c|7 ---
hw/display
will need to keep very close watch to not allow new bad code
to slip into upstream.
Any thoughts on how to deal with qemu_allocate_irqs? Is there any archive
of guest system images for testing purposes? The list on the wiki page
covers only small part of supported boards.
Kirill Batuzov (4
Object returned bu object_property_get_qobject needs it's reference counter to
be decremented when it is not needed by caller anymore.
Signed-off-by: Kirill Batuzov batuz...@ispras.ru
---
hw/i386/acpi-build.c |6 ++
1 file changed, 6 insertions(+)
diff --git a/hw/i386/acpi-build.c b/hw
Note that generally these leaks are not really leaks, because we
set up the board and wire IRQs together once, and they remain
that way for the lifetime of QEMU and are freed automatically
when QEMU exits.
Unfortunately they are really leaks. As I said qemu_allocate_irqs
allocates two chunks
Andreas Färber писал 2014-04-18 20:30:
Am 18.04.2014 15:41, schrieb Kirill Batuzov:
acpi_pcihp_get_bsel implements functionality of
object_property_get_int for
specific property named ACPI_PCIHP_PROP_BSEL, but fails to decrement
object's
reference counter properly. Replacing it with generic
On Tue, 22 Apr 2014, Gerd Hoffmann wrote:
if (dev) {
-object_property_set_link(OBJECT(s), OBJECT(dev),
- device, local_err);
-object_property_set_int(OBJECT(s), head,
-head, local_err);
+
m...@redhat.com wrote:
On Fri, Apr 18, 2014 at 06:30:37PM +0200, Andreas Färber wrote:
Am 18.04.2014 15:41, schrieb Kirill Batuzov:
acpi_pcihp_get_bsel implements functionality of
object_property_get_int for
specific property named ACPI_PCIHP_PROP_BSEL, but fails to decrement
leak.
Signed-off-by: Kirill Batuzov batuz...@ispras.ru
---
hw/acpi/pcihp.c | 18 ++
1 file changed, 10 insertions(+), 8 deletions(-)
v1 - v2:
Keep acpi_pcihp_get_bsel, but rewrite it using object_property_get_int and
validate returned value.
diff --git a/hw/acpi/pcihp.c b/hw
-by: Kirill Batuzov batuz...@ispras.ru
---
hw/audio/adlib.c|6 +++---
hw/display/qxl.c|7 +++
hw/display/qxl.h|1 +
hw/display/vga.c| 12 +---
hw/display/vga_int.h|2 ++
hw/dma/i82374.c |7 ---
hw/isa/isa-bus.c| 28
.
- Missing Error set by error_set deallocation in ui/console.c.
- Several missing qobject_decref.
- Incorrect usage of PortioList.
v1 - v2:
All review feedback incorporated. Changes are listed in each individual patch.
Kirill Batuzov (4):
acpi/pcihp.c: Rewrite acpi_pcihp_get_bsel using
where an attempt was made to write to a read-only property head.
Set head property's value at creation time and do not attempt to change it
later. This fixes the bug mentioned above.
Signed-off-by: Kirill Batuzov batuz...@ispras.ru
---
ui/console.c | 30 +-
1 file
Object returned by object_property_get_qobject needs its reference counter to
be decremented when it is not needed by caller anymore.
Signed-off-by: Kirill Batuzov batuz...@ispras.ru
---
hw/i386/acpi-build.c |6 ++
1 file changed, 6 insertions(+)
v1 - v2:
No changes.
diff --git a/hw
-by: Kirill Batuzov batuz...@ispras.ru
---
hw/audio/adlib.c|6 +++---
hw/display/qxl.c|7 +++
hw/display/qxl.h|1 +
hw/display/vga.c| 12 +---
hw/display/vga_int.h|2 ++
hw/dma/i82374.c |7 ---
hw/isa/isa-bus.c| 11
init_clocks call from main and add an assertion to
qemu_clock_init that corresponding clock has not been initialized yet.
Signed-off-by: Kirill Batuzov batuz...@ispras.ru
---
qemu-timer.c |3 +++
vl.c |1 -
2 files changed, 3 insertions(+), 1 deletion(-)
The init_clocks call was added
On Thu, 24 Apr 2014, Kirill Batuzov wrote:
All defined properties of QemuConsole are mandatory and no access to them
should fail. Nevertheless not checking returned errors is bad because in case
of unexpected failure it will hide the bug and cause a memory leak.
Abort in case of unexpected
On Mon, 2 Jun 2014, Peter Crosthwaite wrote:
From: Andreas Färber afaer...@suse.de
Replace qemu_allocate_irqs(foo, bar, 1)[0]
with qemu_allocate_irq(foo, bar, 0).
You missed one occurrence in hw/sh4/sh7750.c in function sh7750_irl.
--
Kirill
...@redhat.com
Signed-off-by: Kirill Batuzov batuz...@ispras.ru
Signed-off-by: Nikita Belov zod...@ispras.ru
---
GLib limitation resulted in a bug on Windows host. Steps to reproduce:
Start qemu: qemu-system-i386 -qmp tcp:127.0.0.1::server:nowait
Connect with telnet: telnet 127.0.0.1
Try
On Tue, 1 Jul 2014, Alex Bennée wrote:
Kirill Batuzov writes:
Due to GLib limitations it is not possible to create several watches on one
channel on Windows hosts. See bug #338943 in GNOME bugzilla for details:
https://bugzilla.gnome.org/show_bug.cgi?id=338943
Handle G_IO_HUP
On Tue, 1 Jul 2014, Pavel Dovgaluk wrote:
Changes in main makefiles.
Signed-off-by: Pavel Dovgalyuk pavel.dovga...@gmail.com
---
diff --git a/Makefile.target b/Makefile.target
index 6089d29..357ab4d
--- a/Makefile.target
+++ b/Makefile.target
@@ -76,6 +76,7 @@ all: $(PROGS) stap
On Tue, 1 Jul 2014, Pavel Dovgaluk wrote:
Functions for writing and reading replay log. These functions are used to
record the following events:
* Output of the time() function
* Sound in and sound out events in winaudio
* Hardware interrupts and exceptions
* Special replay debug
On Wed, 2 Jul 2014, Pavel Dovgaluk wrote:
-Original Message-
From: Eric Blake [mailto:ebl...@redhat.com]
Sent: Tuesday, July 01, 2014 9:33 PM
To: Pavel Dovgaluk; 'QEMU Developers'
Subject: Re: [Qemu-devel] [RFC PATCH 08/22] Monitor commands
On 07/01/2014 05:23 AM, Pavel
Forward chr_add_watch call from mux chardev to underlying
implementation.
This should fix bug #1335444
Signed-off-by: Kirill Batuzov batuz...@ispras.ru
---
qemu-char.c |9 +
1 file changed, 9 insertions(+)
diff --git a/qemu-char.c b/qemu-char.c
index 51917de..e1bd6f5 100644
On Mon, 7 Jul 2014, Nikolay Nikolaev wrote:
On Tue, Jul 1, 2014 at 2:52 PM, Kirill Batuzov batuz...@ispras.ru wrote:
Due to GLib limitations it is not possible to create several watches on one
channel on Windows hosts. See bug #338943 in GNOME bugzilla for details:
https
Thank you for detailed bug report. I've submitted a patch that should fix the
problem.
http://git.qemu.org/?p=qemu.git;a=commitdiff;h=3f0838ab8557c6071a5931183b2d7fed568cd35c;hp=8b81bb3b069d4007bc44c8d5888d630b7f0b42ff
--
You received this bug notification because you are a member of qemu-
{} while () loop in serial_xmit (diff is a bit erratic
for this part, diff -w will show actual change),
- do not call serial_xmit from serial_ioport_write if there is one
waiting on the watch already.
This should fix another issue causing bug #1335444.
Signed-off-by: Kirill Batuzov batuz
I see. There is an issue with retry logic of serial port emulation. I've
send a patch to the mailing list that should help.
http://lists.nongnu.org/archive/html/qemu-devel/2014-07/msg01976.html
With it both methods pass the test for me. Note that in the first method
you'll need to disable
v2.1.0-rc2 has both patches.
** Changed in: qemu
Status: New = Fix Committed
--
You received this bug notification because you are a member of qemu-
devel-ml, which is subscribed to QEMU.
https://bugs.launchpad.net/bugs/1335444
Title:
qemu loses serial console data on EAGAIN
Status
On Wed, 3 Sep 2014, Andrey Korolyov wrote:
Given 2.1 and isa-serial output, set as ttyS0 for the guest VM with
9600 baud rate.
The test case is quite simple - display as much data as possible over
serial console and do not hang the system. While qemu-1.1 works
perfectly, with complaining
On Thu, 4 Sep 2014, Andrey Korolyov wrote:
Thanks, the launch string can be borrowed from attach here:
http://lists.nongnu.org/archive/html/qemu-devel/2014-09/msg00482.html,
the same VM is going under test.
By hang I mean stopping ability to send icmp replies, it is like a
kind of a
On Fri, 5 Sep 2014, Andrey Korolyov wrote:
Heh, it is kernel- (defaults-) dependent after all. Debian hangs
always, on 3.10, 3.14 and 3.16, Fedora 20 works fine on 3.15. I`ll
check if there are any 82550-specific patches in Fedora tree a bit
later.
It is a setting-dependent issue,
a related bug when running socat in write-only mode, with
$ echo quit | socat -u - UNIX-CONNECT:qemu-monitor
the monitor won't not run the 'quit' command.
CC: Kirill Batuzov batuz...@ispras.ru
CC: Nikolay Nikolaev n.nikol...@virtualopensystems.com
CC: Anthony Liguori aligu...@amazon.com
of connection as suggested by Kirill.
Cc: Kirill Batuzov batuz...@ispras.ru
Cc: Nikolay Nikolaev n.nikol...@virtualopensystems.com
Cc: Markus Armbruster arm...@redhat.com
Cc: Anthony Liguori aligu...@amazon.com
Signed-off-by: Zifei Tong zifeit...@gmail.com
---
Changes in v3: handle EWOULDBLOCK, remove
Signed-off-by: Kirill Batuzov batuz...@ispras.ru
---
target-arm/translate.c | 12
1 file changed, 12 insertions(+)
diff --git a/target-arm/translate.c b/target-arm/translate.c
index 22855d8..00ea5cf 100644
--- a/target-arm/translate.c
+++ b/target-arm/translate.c
@@ -5239,6
.
Still there are some cons I mentioned earlier. The need to support a lot of
opcodes is the most significant in the long run I think. So before I commit my
time to conversion of more operations I'd like to hear your opinions if this
approach is acceptable and worth spending efforts.
Kirill Batuzov (7
to support any other opcodes we want. INDEX_op_add_i32x4 is
the only one for now. PADDD instruction handles it perfectly.
Signed-off-by: Kirill Batuzov batuz...@ispras.ru
---
tcg/i386/tcg-target.c | 103 ++---
tcg/i386/tcg-target.h | 24
in a serious performance degradation.
Signed-off-by: Kirill Batuzov batuz...@ispras.ru
---
tcg/tcg-op.h | 108 +
tcg/tcg-opc.h | 12 +++
tcg/tcg.h |5 +++
3 files changed, 125 insertions(+)
diff --git a/tcg/tcg-op.h b/tcg/tcg-op.h
On Thu, 16 Oct 2014, Alex Bennée wrote:
From Valgrind experience there are enough genericism. Valgrind can translate
SSE, AltiVec and NEON instructions to vector opcodes. Most of the opcodes
are
reused between instruction sets.
Doesn't Valgrind have the advantage of
On Tue, 21 Oct 2014, Markus Armbruster wrote:
Michael S. Tsirkin m...@redhat.com writes:
On Mon, Oct 20, 2014 at 03:04:44PM +0100, Peter Maydell wrote:
On 20 October 2014 10:19, Markus Armbruster arm...@redhat.com wrote:
Contributors rely on this script to find maintainers to copy. The
On Tue, 21 Oct 2014, Markus Armbruster wrote:
Paolo Bonzini pbonz...@redhat.com writes:
On 10/20/2014 04:15 PM, Michael S. Tsirkin wrote:
What do you want to happen in this case?
Won't this cause even more patches to fall to the floor?
The benefit seems marginal, the risk high.
I
On Wed, 22 Oct 2014, Paolo Bonzini wrote:
Unfortunately, TCG files do not really have a maintainer yet.
But at least there will be fewer unmaintained files.
Signed-off-by: Paolo Bonzini pbonz...@redhat.com
---
MAINTAINERS | 16
1 file changed, 16 insertions(+)
diff
On Fri, 31 Oct 2014, Peter Maydell wrote:
On 31 October 2014 10:42, Nikita Belov zod...@ispras.ru wrote:
On 2014-10-29 19:03, Peter Maydell wrote:
We leak all of the MemoryRegions we allocate here, because we
don't have a persistent state struct to keep them in. This
doesn't really
On Thu, 16 Oct 2014, Kirill Batuzov wrote:
(4) Consider supporting generic vector operations in the TCG?
I gave it a go and was quite happy with the result. I have implemented the
add_i32x4
opcode which is addition of 128-bit vectors composed of four 32-bit integers
and used
On Wed, 19 Nov 2014, Peter Maydell wrote:
Not for 2.2,
Fair enough.
and I'm still not really convinced in
general that it's worthwhile at all.
I'm surprised that this small patch caused so much controversy. It seems
very simple and straightforward to me.
This patch fixes a memory leak.
On 20 November 2014 11:53, Kirill Batuzov batuz...@ispras.ru wrote:
I'm surprised that this small patch caused so much controversy. It seems
very simple and straightforward to me.
This patch fixes a memory leak. The fact that it indeed was a memory
leak is indicated by Valgrind output
On Mon, 1 Dec 2014, Mark Burton wrote:
One issue I’d like to see more opinions on is the question of a cache per
core, or a shared cache.
I have heard anecdotal evidence that a shared cache gives a major performance
benefit….
Does anybody have anything more concrete?
There is a
.
To reproduce issue run the following program
int main(void) {
asm volatile (.long 0x07c00c12 :: );
return 0;
}
compiled with
gcc -marm -static badop_arm.c -o badop_arm
Signed-off-by: Kirill Batuzov batuz...@ispras.ru
---
target-arm/translate.c |4
1 file changed, 4 insertions
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