Alberto Treviño wrote:
> When I try to boot from a SCSI device using grub, Qemu crashes (see
> below). I have been able to boot from SCSI devices using Windows, but
> anytime I use grub I get a crash, even when booting off a CD with grub.
> Any ideas?
>
> # qemu-system-x86_64 -drive \
> file
Avi Kivity wrote:
> David Abrahams wrote:
>> on Wed Apr 02 2008, Avi Kivity wrote:
>>
>>
>>> David Abrahams wrote:
>>>
With the title combination, the guest takes nearly 100% of my real CPU
time and still only sees one CPU. Is this a known problem, and does it
have a known so
Avi Kivity wrote:
>> @@ -765,6 +766,7 @@ void kvm_vcpu_block(struct kvm_vcpu *vcp
>>
>
>
> This breaks ia64 (and shouldn't s390 use this too?)
>> * We will block until either an interrupt or a signal wakes us up
>> */
>> while (!kvm_cpu_has_interrupt(vcpu)
>> + && !k
On Fri, Apr 11, 2008 at 01:59:35PM -0500, Anthony Liguori wrote:
> >-static void enable_sigio_timer(int fd)
> >+static void enable_sigio(int fd)
> >+{
> >+struct sigaction act;
> >+
> >+sigfillset(&act.sa_mask);
> >+act.sa_flags = 0;
> >+act.sa_handler = host_io_handler;
> >+
> >+
On Fri, Apr 11, 2008 at 01:59:35PM -0500, Anthony Liguori wrote:
> With the IO thread, shouldn't we be striving to perform the select()s
> within the IO thread itself to completely avoid the need to use SIGIO at
> all?
Fully agree. Problem with it are the fundamental changes in qemu that
are req
Gerd Hoffmann wrote:
> Wall clock is off a few hours though. Oops.
>
> I think the way wall clock and system clock work together in xen (Jeremy
> correct me if I'm wrong) is that the wall clock specifies the point in
> time where the system clock started going. As kvm fills in host system
> time
With the IO thread, shouldn't we be striving to perform the select()s
within the IO thread itself to completely avoid the need to use SIGIO at
all?
Regards,
Anthony Liguori
Marcelo Tosatti wrote:
> From: Anders Melchiorsen <[EMAIL PROTECTED]>
>
> Without I/O signals, qemu is relying on periodi
With SIGIO enabled on stdio, there's no need to wakeup the thread
performing IO every 30ms.
Signed-off-by: Marcelo Tosatti <[EMAIL PROTECTED]>
Index: kvm-userspace.io/qemu/vl.c
===
--- kvm-userspace.io.orig/qemu/vl.c
+++ kvm-userspac
From: Anders Melchiorsen <[EMAIL PROTECTED]>
Without I/O signals, qemu is relying on periodic timer events to poll
the I/O. That seems wrong, even though it works reasonably well
because timers are so frequent. In KVM, timers are less frequent, and
it does not work quite as well.
Here is a quick
First patch from Anders Melchiorsen cleans up SIGIO handling:
- SIGALRM for alarm timers
- enable SIGIO on qemu_set_fd_handler2()
- avoid tap from abusing enable_sigio_timer()
With that in place its possible to increase the dumb console (-nographic)
refresh rate to 1s (from 30ms).
--
---
On Fri, Apr 11, 2008 at 05:43:03PM +0530, Amit Shah wrote:
> Hi Andrea,
>
> Did you have to recompile the bios? How did you do that (or did you ask Avi
> to
Yes.
> generate it?) Do you have a binary of the bios that I can use to test
> reserved ram?
make bios; make install should do the tric
On Fri, Apr 11, 2008 at 03:18:19PM +0300, Avi Kivity wrote:
> kvm_vcpu_kick() can be called from nonatomic contexts, so the vcpu->cpu
> == cpu check is dangerous (and will warn on preemptible kernels, no?)
Doh, right. How's this.
---
KVM: fix kvm_vcpu_kick vs __vcpu_run race
There is a
On Fri, Apr 11, 2008 at 03:12:41PM +0300, Avi Kivity wrote:
> This breaks ia64 (and shouldn't s390 use this too?)
> > * We will block until either an interrupt or a signal wakes us up
> > */
> > while (!kvm_cpu_has_interrupt(vcpu)
> >+ && !kvm_cpu_has_pending_timer(vcpu)
>
The -m parameter doesn't take suffixes like G or M currently
and it doesn't complain if such a suffix is given.
Add support for the G and M suffixes and update the usage
instructions appropriately.
Signed-off-by: Amit Shah <[EMAIL PROTECTED]>
---
qemu/vl.c | 25 +++--
1 fil
Address comments from Avi:
- fold mp_state into a structure
- IOW/IOR markers for ioctl definitions
- return -ENOSYS if extension is not supported
--
-
This SF.net email is sponsored by the 2008 JavaOne(SM) Conference
Don
Use the new interface to save and restore MP_STATE for all vcpu's.
Increase version_id for cpu_load/cpu_save.
Fixes SMP migration.
Signed-off-by: Marcelo Tosatti <[EMAIL PROTECTED]>
Index: kvm-userspace.io/qemu/hw/pc.c
===
--- kvm-
Otherwise a signal can be received in userspace and a vcpu goes back
to the kernel while it should stay still.
Signed-off-by: Marcelo Tosatti <[EMAIL PROTECTED]>
Index: kvm-userspace.io/qemu/qemu-kvm.c
===
--- kvm-userspace.io.orig/q
So userspace can save/restore the mpstate during migration.
Signed-off-by: Marcelo Tosatti <[EMAIL PROTECTED]>
Index: kvm/arch/x86/kvm/x86.c
===
--- kvm.orig/arch/x86/kvm/x86.c
+++ kvm/arch/x86/kvm/x86.c
@@ -814,6 +814,7 @@ int kvm_d
Signed-off-by: Marcelo Tosatti <[EMAIL PROTECTED]>
Index: kvm-userspace.io/libkvm/libkvm.c
===
--- kvm-userspace.io.orig/libkvm/libkvm.c
+++ kvm-userspace.io/libkvm/libkvm.c
@@ -776,6 +776,28 @@ int kvm_set_sregs(kvm_context_t kvm, in
The MSR_IA32_APICBASE_ENABLE/MSR_IA32_APICBASE_BSP bits in s->apicbase
are not initialized if in-kernel APIC emulation is used, so save the
actual value passed by cpu_set_apic_base() caller.
Signed-off-by: Marcelo Tosatti <[EMAIL PROTECTED]>
Index: kvm-userspace.io/qemu/hw/apic.c
Thank you Anthony for your program. I have downloaded it and it works
great! Until now I was generating the iso without gfxboot doing changes
by hand. This is going to let me work faster, thanks.
Thanks a lot for the kvmtest information too.
Regards,
Miguel
Miguel Araujo wrote:
Hello
When I try to boot from a SCSI device using grub, Qemu crashes (see
below). I have been able to boot from SCSI devices using Windows, but
anytime I use grub I get a crash, even when booting off a CD with grub.
Any ideas?
# qemu-system-x86_64 -drive \
file=junk.raw,if=scsi,bus=0,index=0,medi
Gerd Hoffmann wrote:
> Wall clock is off a few hours though. Oops.
>
> I think the way wall clock and system clock work together in xen (Jeremy
> correct me if I'm wrong) is that the wall clock specifies the point in
> time where the system clock started going. As kvm fills in host system
> tim
Miguel Araujo wrote:
> Hello all,
>
> I'm interested in automate linux guests installation. First I haven't
> been able to guess if the gfxboot issues with Ubuntu have been solved
> (changelog searching has given zero results), so I thought about
> installing a debootstrap system in a file mount
Avi Kivity wrote:
> Anthony Liguori wrote:
>> Joerg Roedel wrote:
>>> The compilation of kvm-userspace part fails if the in-kernel pit is not
>>> detected in with the following error message:
>>>
>>> pc.o: In function `pc_init1':
>>> /home/jroedel/src/kvm/kvm-userspace/qemu/hw/pc.c:987: undefined
Avi Kivity wrote:
> Gerd Hoffmann wrote:
>> Hi,
>>
>> Tried to use kvmclock with xenner and noticed that the kvmclock
>> (MSR_KVM_SYSTEM_TIME msr) is incompatible with xen.
>
> Patches are welcome, especially as kvmclock isn't merged yet, so there
> are no backward compatibility issues.
Great,
Joerg Roedel wrote:
>> Applied, thanks. I didn't know task switch and npt were related under svm.
>>
>
> The only reason why task switch is intercepted is the cr3 switch it
> involves. But with NPT we don't intercept cr3 switches anymore so we can
> disable task switch intercept too.
>
On Fri, Apr 11, 2008 at 03:36:57PM +0300, Avi Kivity wrote:
> Joerg Roedel wrote:
> >When KVM uses NPT there is no reason to intercept task switches. This patch
> >removes the intercept for it in that case.
> >
>
> Applied, thanks. I didn't know task switch and npt were related under svm.
The
Marcelo Tosatti wrote:
> Make sure that all threads are paused in userspace before saving machine
> state.
>
>
Applied, thanks.
--
Any sufficiently difficult bug is indistinguishable from a feature.
-
This SF.net email
Joerg Roedel wrote:
> When KVM uses NPT there is no reason to intercept task switches. This patch
> removes the intercept for it in that case.
>
Applied, thanks. I didn't know task switch and npt were related under svm.
--
Any sufficiently difficult bug is indistinguishable from a feature.
Hello again,
I want to thank you for the information given. Now I understand what you
mean, I'm going to test virtio drivers with the last kernel possible.
Thanks a lot.
Regards,
Miguel
Haydn Solomon escribió:
See also
http://www.linux-kvm.com/content/tip-how-setup-windows-guest-paravir
Marcelo Tosatti wrote:
> There is a window open between testing of pending IRQ's
> and assignment of guest_mode in __vcpu_run.
>
> Injection of IRQ's can race with __vcpu_run as follows:
>
> CPU0CPU1
> kvm_x86_ops->run()
> vcpu->guest_mode = 0SET_IRQ
Hello all,
I'm interested in automate linux guests installation. First I haven't
been able to guess if the gfxboot issues with Ubuntu have been solved
(changelog searching has given zero results), so I thought about
installing a debootstrap system in a file mounted in loopback mode.
would be K
Hi Andrea,
Did you have to recompile the bios? How did you do that (or did you ask Avi to
generate it?) Do you have a binary of the bios that I can use to test
reserved ram?
Thanks,
Amit
-
This SF.net email is sponsored by
Marcelo Tosatti wrote:
> Timers that fire between guest hlt and vcpu_block's add_wait_queue() are
> ignored, possibly resulting in hangs.
>
> Also make sure that atomic_inc and waitqueue_active tests happen in the
> specified order, otherwise the following race is open:
>
> CPU0
Gerd Hoffmann wrote:
> Hi,
>
> Tried to use kvmclock with xenner and noticed that the kvmclock
> (MSR_KVM_SYSTEM_TIME msr) is incompatible with xen.
>
>
Patches are welcome, especially as kvmclock isn't merged yet, so there
are no backward compatibility issues.
--
Any sufficiently difficul
Anthony Liguori wrote:
> Joerg Roedel wrote:
>> The compilation of kvm-userspace part fails if the in-kernel pit is not
>> detected in with the following error message:
>>
>> pc.o: In function `pc_init1':
>> /home/jroedel/src/kvm/kvm-userspace/qemu/hw/pc.c:987: undefined
>> reference to `kvm_pit_
Вeдeниe кaссoвых oпepaций. Пpaвилa, нapушeния, кoнтpoль.
Дата проведения: 15 aпpeля 2008, г. Мoсквa
В пpoгpaммe:
1. oбщиe пpaвилa вeдeния кaссoвых oпepaций в pФ. Нopмaтивнaя бaзa.
2. opгaнизaция нaличных paсчeтoв нa пpeдпpиятии
3. oфopмлeниe кaссoвых дoкумeнтoв
4. Дeнeжнaя нaличнoсть в кaссe п
Hi,
Tried to use kvmclock with xenner and noticed that the kvmclock
(MSR_KVM_SYSTEM_TIME msr) is incompatible with xen.
kvm guests do this to translate the tsc delta into nsecs:
#define get_clock(cpu, field) per_cpu(hv_clock, cpu).field
static inline u64 kvm_get_delta(u64 last_tsc)
{
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