Can anyone help me out in finding how does QEMU provide emulated clock to
guest operating system.. For instance, how does it increment x86's time
stamp counter register??
Can e1000 driver in linux be used without DMA involvement? Actually I am
trying to use e1000 network driver on octeon linux( to be run on QEMU), and
I have not emulated any DMA controller, so I was wondering if I can be able
to run networking without DMA's involvement?
Hi, I have added support for MIPS64 based octeon linux in QEMU, and now I
want to compare performance of this emulated system with real system(
cavium networks octeon board). I have run benchmarks like lmbench. I need
to know what will be the most appropriate benchmarks to compare performance
or an
Does malta mips use both pci and isa bus for its emulation? In
hw/mips_malta.c file I have seen most devices connected to pci bus but
there are some ISA devices like i8259. Can someone with deeper
understanding explain what is happening in this particular file?
Can any one tell me, what's the address range used by PCI emulation in QEMU
and whether this emulation supports 64 bit addresses?
Moreover, is "PCIE" emulation in QEMU used by any architecture?
what's the address range used by pci in QEMU?
I observed that if i place printf in qemu at certain places like in
hw./serial.c file, I can see the printing when my guest OS is running on
qemu, while there are some other places like in pckbd.c (emulation of
keyboard), where if printf is used, I am not able to see any printing while
guest OS is
While debugging using gdb, I found that the interrupt related flow is not
handled in io thread i.e. on using info thread, I found: Thread 2(iothread)
is at __lll_lock_wait() while Thread 1 is at qemu_set_irq(in irq.c)..
Initially I thought that this interrupt related
code(kbd_update_irq--->qemu_Set
According to my understanding of interrupt handling mechanism in QEMU, when
some external interrupt comes, related device emulation code (e.g.
kbd_update_irq in pckbd.c ---> qemu_set_irq> ) runs in vcpu
thread and io-thread when finds that some interrupt has occured
sends signal to
According to my understanding of interrupt handling mechanism in QEMU, when
some external interrupt comes, related device emulation code (e.g.
kbd_update_irq in pckbd.c ---> qemu_set_irq> ) runs in vcpu
thread and io-thread when finds that some interrupt has occured
sends signal to
Hi, I am at beginner's level in the field of QEMU... I wanted to know how
device emulation works in QEMU?
Any helping material or link would be highly appreciated...
Hi !! Can anyone tell me, what IO and mem address range is used by e1000
emulation in QEMU ??
Does e1000's emulation in QEMU require that the guest set its base address
register(pci configuration space register) or qemu has default value for
its base address register?
I have to emulate netwotking drivers for a particular mips board in qemu. I
have gone through MALTA mips machine and its emulation in qemu, but I have
not been able to find any good documentation to find out what should be
starting point? Any help in this regard would be highly appreciated...
After reviewing uart's emulation related code in serial.c I am not able to
understand how interrupt is raised in case fifo mode is enabled. according
to UART specifiation, in fifo mode THRE interrupt is raised when fifo is
either empty or below threshold.. What I can see, in xmit_serial function,
s
For the background I am trying to make networking work on Octeon Linux
guest(run on QEMU) and using e1000 ethernet iface for this purpose. At the
moment if I ping bridge iface (running command on guest), bridge iface
receives ICMP echo request message but does not reply(I have observed using
tcpdum
Hello, all !
I want to find out the number of executed translated instructions on the
host system, for certain user mode programs. For that purpose, I am using
hardware performance counters. I start them right before calling function
tcg_qemu_tb_exec ( ), and stop them when function is returned. T
Hello !
Is anyone aware of an effort to produce an executable binary for host using
qemu. I mean is it possible that qemu generate a binary for whatever
application it is emulating, which can later be run directly on host?
Thanks
t;
> Thanks
>
> On Fri, Jun 26, 2015 at 11:34 PM, Peter Crosthwaite <
> peter.crosthwa...@xilinx.com> wrote:
>
>> On Fri, Jun 26, 2015 at 12:33 PM, Ayaz Akram wrote:
>> > Hello !
>> > Is anyone aware of an effort to produce an executable binary for hos
2015 at 8:13 AM, Stefan Hajnoczi
> wrote:
> > On Sun, Jun 28, 2015 at 07:29:39PM -0400, Ayaz Akram wrote:
> >> > Let's say qemu is running in System Emulation Mode, when it runs
> guest's
>
> System emulation makes the problem even harder, as a system mod
Hi all !
I ran a program with qemu in user mode emulation and generated trace for
generated host instructions using (-d OUT_ASM) on two different linux
systems.I expected that the addresses in two trace files can be different.
But the total number of lines in two files is different as well. I mean
=0B48wPA1x1eizM3JIM0I1Z0hiNkpBREttMGxYOUI2NE1GRHEw
On Mon, Jul 18, 2016 at 2:51 PM, Ayaz Akram wrote:
> Attached are two trace files (out_asm log) for the same program using same
> qemu binaries on two different systems .
>
>
>
>
>
> On Sun, Jul 17, 2016 at 3:25 AM, Paolo Bonzini
> wrote:
>
>>
&
Hi All,
I want to count number of host instructions (only for guest code) executed
when qemu emulates an application. I wonder if helper functions are
supported with tcg back end as well, which can be a possible solution for
the mentioned problem ? If not, is there any other solution in someone's
b (by -d out_asm logging) and
-d exec logging, how will the total count of instructions include effect of
tb chaining ?
Thanks !
On Tue, Jun 28, 2016 at 7:17 AM, Peter Maydell
wrote:
> On 28 June 2016 at 11:50, Lluís Vilanova wrote:
> > Ayaz Akram writes:
> >
> >> Hi All
Thanks Peter. This should help.
I wonder if this -d nochain option is supported in qemu-2.4.1. I am using
it for x86 user mode emulation but, -d --help is not showing any such
option.
Thanks
On Tue, Jun 28, 2016 at 11:28 AM, Peter Maydell
wrote:
> On 28 June 2016 at 16:24, Ayaz Akram wr
c and nochaining),
the total number of instructions will overestimate the actual number of
executed host instructions (only for the translated code) ?
Thanks
On Tue, Jun 28, 2016 at 7:17 AM, Peter Maydell
wrote:
> On 28 June 2016 at 11:50, Lluís Vilanova wrote:
> > Ayaz Akram writes:
> >
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