[Replying to my own email...]
Michael Tokarev wrote:
Hello! It's my first email to this list.. ;)
After experimenting for some time with KVM on linux
(both host and guests are linux machines), I placed
one virtual machine into production use, and almost
immediately come... issues. Here's how
Matt Anger wrote:
Thanks for the info, I've been looking into it by trying to look
around kvm source code.
Apparently I have to write a kernel driver for the guest os and then
also write backend driver and modify qemu to use it? Is that correct?
That seems ugly, especially since now my io goes gu
Glauber Costa wrote:
On Sat, Sep 20, 2008 at 11:39:44AM -0700, Avi Kivity wrote:
Glauber Costa wrote:
Remove explicit calls to mmio coalescing. Rather,
include it in the registration functions.
index 5ae3960..2d97b34 100644
--- a/qemu/hw/e1000.c
+++ b/qemu/hw/e1000.c
@@ -942,18 +942,6
Glauber Costa wrote:
On Sat, Sep 20, 2008 at 11:38:22AM -0700, Avi Kivity wrote:
Glauber Costa wrote:
By analysing phys_offset, we know whether a region is an mmio region
or not. If it is, register it as so. We don't reuse the same slot
infrastructure already existant, because there is
Glauber Costa wrote:
On Sat, Sep 20, 2008 at 11:33:56AM -0700, Avi Kivity wrote:
Glauber Costa wrote:
is_allocated_mem is a function that checks if every relevant aspect of the
memory slot
match (start and size). Replace it with a more generic function that checks if
a memory
region i
Yang, Sheng wrote:
> On Monday 22 September 2008 19:00:38 Avi Kivity wrote:
>> Jan Kiszka wrote:
Maybe the answer is to generate the local nmi via an IPI-to-self command
to the local apic.
>>> Going this way leaves me with a few questions: Will it be OK for the
>>> related mainainers to e
On Tue, Sep 23, 2008 at 10:46:38AM +0200, Jan Kiszka wrote:
> Gleb Natapov wrote:
> > On Mon, Sep 22, 2008 at 09:59:07AM +0200, Jan Kiszka wrote:
> >> @@ -2356,6 +2384,19 @@ static void vmx_inject_nmi(struct kvm_vc
> >> {
> >>struct vcpu_vmx *vmx = to_vmx(vcpu);
> >>
> >> + if (!cpu_has_vir
On Tuesday 23 September 2008 16:47:54 Jan Kiszka wrote:
> Yang, Sheng wrote:
> > On Monday 22 September 2008 19:00:38 Avi Kivity wrote:
> >> Jan Kiszka wrote:
> Maybe the answer is to generate the local nmi via an IPI-to-self
> command to the local apic.
> >>>
> >>> Going this way leaves
Gleb Natapov wrote:
Don't enter guest after SIPI was issued.
CPU should process SIPI message before entering a guest mode again.
kvm_arch_vcpu_runnable() return true if CPU is in SIPI state, so
we can't call it here.
Applied, thanks.
--
error compiling committee.c: too many arguments to f
Gleb Natapov wrote:
> On Tue, Sep 23, 2008 at 10:46:38AM +0200, Jan Kiszka wrote:
>> Gleb Natapov wrote:
>>> On Mon, Sep 22, 2008 at 09:59:07AM +0200, Jan Kiszka wrote:
@@ -2356,6 +2384,19 @@ static void vmx_inject_nmi(struct kvm_vc
{
struct vcpu_vmx *vmx = to_vmx(vcpu);
>
Guillaume Thouvenin wrote:
This patch consolidate the emulation of push reg instruction.
Signed-off-by: Guillaume Thouvenin <[EMAIL PROTECTED]>
Signed-off-by: Laurent Vivier <[EMAIL PROTECTED]>
Applied, thanks.
--
error compiling committee.c: too many arguments to function
--
To unsubscri
On Tue, Sep 23, 2008 at 10:57:40AM +0200, Jan Kiszka wrote:
> Gleb Natapov wrote:
> > On Tue, Sep 23, 2008 at 10:46:38AM +0200, Jan Kiszka wrote:
> >> Gleb Natapov wrote:
> >>> On Mon, Sep 22, 2008 at 09:59:07AM +0200, Jan Kiszka wrote:
> @@ -2356,6 +2384,19 @@ static void vmx_inject_nmi(struc
Gleb Natapov wrote:
> On Mon, Sep 22, 2008 at 09:59:07AM +0200, Jan Kiszka wrote:
>> @@ -2356,6 +2384,19 @@ static void vmx_inject_nmi(struct kvm_vc
>> {
>> struct vcpu_vmx *vmx = to_vmx(vcpu);
>>
>> +if (!cpu_has_virtual_nmis()) {
>> +/*
>> + * Tracking the NMI-
Yang, Sheng wrote:
> On Tuesday 23 September 2008 16:47:54 Jan Kiszka wrote:
>> Yang, Sheng wrote:
>>> On Monday 22 September 2008 19:00:38 Avi Kivity wrote:
Jan Kiszka wrote:
>> Maybe the answer is to generate the local nmi via an IPI-to-self
>> command to the local apic.
> Going
On Tuesday 23 September 2008 17:00:21 Gleb Natapov wrote:
> On Tue, Sep 23, 2008 at 10:57:40AM +0200, Jan Kiszka wrote:
> > Gleb Natapov wrote:
> > > On Tue, Sep 23, 2008 at 10:46:38AM +0200, Jan Kiszka wrote:
> > >> Gleb Natapov wrote:
> > >>> On Mon, Sep 22, 2008 at 09:59:07AM +0200, Jan Kiszka w
On Tue, Sep 23, 2008 at 05:08:09PM +0800, Yang, Sheng wrote:
> > > >>> We still get here with vmx->soft_vnmi_blocked = 1. Trying to find out
> > > >>> how.
> > > >>
> > > >> We should only come along here with vnmi blocked on reinjection (after
> > > >> a fault on calling the handler).
> > > >
> >
Alex Williamson wrote:
When I try to boot guests using a recent Linux kernel (2.6.26+), memory
above 3.5G gets thrown away with an error like this:
WARNING: BIOS bug: CPU MTRRs don't cover all of memory, losing 4608MB of RAM.
And it's true, we're only providing MTRRs for memory below 4G. In fa
Alex Williamson wrote:
On Wed, 2008-09-17 at 11:51 -0600, Alex Williamson wrote:
the patch below is a possible
approach to continue down this path and enlighten rombios32 about the
real top of memory, and setup MTRRs appropriately. It doesn't address
SMBIOS or whatever causes grub to only re
On Tuesday 23 September 2008 17:15:09 Gleb Natapov wrote:
> On Tue, Sep 23, 2008 at 05:08:09PM +0800, Yang, Sheng wrote:
> > > > >>> We still get here with vmx->soft_vnmi_blocked = 1. Trying to find
> > > > >>> out how.
> > > > >>
> > > > >> We should only come along here with vnmi blocked on reinj
Mike Day wrote:
Compatibility code for intel_iommu no longer needed when
dependency on CONFIG_DMAR removed from kvm kernel build.
Signed-off-by: Mike D. Day <[EMAIL PROTECTED]>
---
external-module-compat.c | 11 ---
1 file changed, 11 deletions(-)
diff --git a/kernel/external-module-
Zhang, Xiantao wrote:
From 80c85020dbb421053270b029c0bc4ca2a995f2e5 Mon Sep 17 00:00:00 2001
From: Xiantao Zhang <[EMAIL PROTECTED]>
Date: Wed, 17 Sep 2008 15:10:37 +0800
Subject: [PATCH] kvm/ia64: Qemu: Set pmcntrl to SCI_EN by default when
initalize acpi.
Fix windows boot issue with acpi enabl
On Tue, Sep 23, 2008 at 05:24:50PM +0800, Yang, Sheng wrote:
> On Tuesday 23 September 2008 17:15:09 Gleb Natapov wrote:
> > On Tue, Sep 23, 2008 at 05:08:09PM +0800, Yang, Sheng wrote:
> > > > > >>> We still get here with vmx->soft_vnmi_blocked = 1. Trying to find
> > > > > >>> out how.
> > > > >
On Tuesday 23 September 2008 17:15:09 Gleb Natapov wrote:
> On Tue, Sep 23, 2008 at 05:08:09PM +0800, Yang, Sheng wrote:
> > > > >>> We still get here with vmx->soft_vnmi_blocked = 1. Trying to find
> > > > >>> out how.
> > > > >>
> > > > >> We should only come along here with vnmi blocked on reinj
On Tue, Sep 23, 2008 at 05:42:02PM +0800, Yang, Sheng wrote:
> > > That is exactly what I am using. Run it with SMP hal and do hibernate.
> >
> > Oh... Finally found how to enable that hibernate option
> >
> > And this hibernate works on my virtual_nmi supported box, with smp hal and
> > 2 cpus
On Tuesday 23 September 2008 17:45:44 Gleb Natapov wrote:
> On Tue, Sep 23, 2008 at 05:42:02PM +0800, Yang, Sheng wrote:
> > > > That is exactly what I am using. Run it with SMP hal and do
> > > > hibernate.
> > >
> > > Oh... Finally found how to enable that hibernate option
> > >
> > > And thi
Glauber Costa wrote:
One of vcpu_setup responsibilities is to do mmu initialization.
However, in case we fail in kvm_arch_vcpu_reset, before we get the
chance to init mmu. OTOH, vcpu_destroy will attempt to destroy mmu,
triggering a bug. Keeping track of whether or not mmu is initialized
would un
Uri Lublin wrote:
Signed-off-by: Uri Lublin <[EMAIL PROTECTED]>
---
libkvm/libkvm.c |3 +++
1 files changed, 3 insertions(+), 0 deletions(-)
diff --git a/libkvm/libkvm.c b/libkvm/libkvm.c
index 1e7bbed..62bcb90 100644
--- a/libkvm/libkvm.c
+++ b/libkvm/libkvm.c
@@ -243,6 +243,9 @@ kvm_conte
On Tuesday 23 September 2008 17:37:00 Yang, Sheng wrote:
> On Tuesday 23 September 2008 17:26:55 Gleb Natapov wrote:
> > On Tue, Sep 23, 2008 at 05:24:50PM +0800, Yang, Sheng wrote:
> > > On Tuesday 23 September 2008 17:15:09 Gleb Natapov wrote:
> > > > On Tue, Sep 23, 2008 at 05:08:09PM +0800, Yan
On Tuesday 23 September 2008 17:26:55 Gleb Natapov wrote:
> On Tue, Sep 23, 2008 at 05:24:50PM +0800, Yang, Sheng wrote:
> > On Tuesday 23 September 2008 17:15:09 Gleb Natapov wrote:
> > > On Tue, Sep 23, 2008 at 05:08:09PM +0800, Yang, Sheng wrote:
> > > > > > >>> We still get here with vmx->soft_
Ryan Harper wrote:
> Addtional work has been done on top of QEMU for KVM and virtio-blk
> devices. While virtio-blk is not yet upstream in QEMU, the AIO
> changes here provide a tremendous performance improvement (from 7.6%
> of native, to 100% of randwrite, and 3.9% of native, to 101.4% of
> nati
Glauber Costa wrote:
On Sat, Sep 20, 2008 at 11:32:48AM -0700, Avi Kivity wrote:
Glauber Costa wrote:
Signed-off-by: Glauber Costa <[EMAIL PROTECTED]>
---
libkvm/libkvm.c |4 ++--
1 files changed, 2 insertions(+), 2 deletions(-)
diff --git a/libkvm/libkvm.c b/libkvm/libkvm.c
index
Amit Shah wrote:
Avi, please pick this up:
http://article.gmane.org/gmane.comp.emulators.kvm.devel/21770
I applied this, thanks.
--
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Marcelo Tosatti wrote:
I don't understand how the variables sp, child, and parent interact. You
either need recursion or an explicit stack?
It restarts at parent level whenever finishing any children:
+ if (i == PT64_ENT_PER_PAGE) {
+ sp->uns
Marcelo Tosatti wrote:
It restarts at parent level whenever finishing any children:
+ if (i == PT64_ENT_PER_PAGE) {
+ sp->unsync_children = 0;
+ sp = parent;
+ }
No efficiency.
Do you prefer a recursive version for t
On Sun, Sep 14, 2008 at 7:56 PM, xming <[EMAIL PROTECTED]> wrote:
>> What is the oldest version that doesn't work? (i.e. when was the regression
>> introduced?)
>
> I can (almost) be sure the kvm-70 did not have stalls and that kvm 73
> certainly
> has this problem.
>
> Never tried 71 and I am no
On Tue, Sep 23, 2008 at 01:46:23PM +0300, Avi Kivity wrote:
> Marcelo Tosatti wrote:
>>> I don't understand how the variables sp, child, and parent interact.
>>> You either need recursion or an explicit stack?
>>>
>>
>> It restarts at parent level whenever finishing any childre
Here are the first 40 patches (out of 104, currently) for the 2.6.28 merge
window.
Linux 2.6.28 KVM will introduce support for pci device assignment and will
improve overall emulation accuracy.
Alexander Graf (1):
KVM: Ignore DEBUGCTL MSRs with no effect
Amit Shah (1):
KVM: Introduce kvm_set
From: Sheng Yang <[EMAIL PROTECTED]>
MSR_IA32_FEATURE_LOCKED is just a bit in fact, which shouldn't be prefixed with
MSR_. So is MSR_IA32_FEATURE_VMXON_ENABLED.
Signed-off-by: Sheng Yang <[EMAIL PROTECTED]>
Signed-off-by: Avi Kivity <[EMAIL PROTECTED]>
---
arch/x86/kvm/vmx.c | 18 +---
From: Marcelo Tosatti <[EMAIL PROTECTED]>
As suggested by Avi, introduce accessors to read/write guest registers.
This simplifies the ->cache_regs/->decache_regs interface, and improves
register caching which is important for VMX, where the cost of
vmcs_read/vmcs_write is significant.
[avi: fix w
From: Avi Kivity <[EMAIL PROTECTED]>
Place into own function, in preparation for further cleanups.
Signed-off-by: Avi Kivity <[EMAIL PROTECTED]>
---
arch/x86/kvm/mmu.c |9 +++--
1 files changed, 7 insertions(+), 2 deletions(-)
diff --git a/arch/x86/kvm/mmu.c b/arch/x86/kvm/mmu.c
index 3
From: Avi Kivity <[EMAIL PROTECTED]>
The twisty maze of conditionals can be reduced.
[joerg: fix tlb flushing]
Signed-off-by: Joerg Roedel <[EMAIL PROTECTED]>
Signed-off-by: Avi Kivity <[EMAIL PROTECTED]>
---
arch/x86/kvm/mmu.c | 14 +-
1 files changed, 5 insertions(+), 9 deletion
From: Avi Kivity <[EMAIL PROTECTED]>
Instead of processing nmi injection failure in the vm entry path, move
it to the vm exit path (vm_complete_interrupts()). This separates nmi
injection from nmi post-processing, and moves the nmi state from the VT
state into vcpu state (new variable nmi_injecte
From: Avi Kivity <[EMAIL PROTECTED]>
If we're emulating an instruction, either it will succeed, in which case
any previously queued exception will be spurious, or we will requeue the
same exception.
Signed-off-by: Avi Kivity <[EMAIL PROTECTED]>
---
arch/x86/kvm/x86.c |2 ++
arch/x86/kvm/x86.
From: Avi Kivity <[EMAIL PROTECTED]>
The vmx code assumes that IDT-Vectoring can only be set when an exception
is injected due to the exception in question. That's not true, however:
if the exception is injected correctly, and later another exception occurs
but its delivery is blocked due to a fa
From: Amit Shah <[EMAIL PROTECTED]>
This function injects an interrupt into the guest given the kvm struct,
the (guest) irq number and the interrupt level.
Signed-off-by: Amit Shah <[EMAIL PROTECTED]>
Signed-off-by: Avi Kivity <[EMAIL PROTECTED]>
---
arch/x86/kvm/irq.c | 11 +++
arch/x
From: Avi Kivity <[EMAIL PROTECTED]>
Similar to the exception queue, this hold interrupts that have been
accepted by the virtual processor core but not yet injected.
Not yet used.
Signed-off-by: Avi Kivity <[EMAIL PROTECTED]>
---
arch/x86/kvm/x86.h | 11 +++
include/asm-x86/kv
From: Avi Kivity <[EMAIL PROTECTED]>
Instead of looking at failed injections in the vm entry path, move
processing to the exit path in vmx_complete_interrupts(). This simplifes
the logic and removes any state that is hidden in vmx registers.
Signed-off-by: Avi Kivity <[EMAIL PROTECTED]>
---
arc
From: Mohammed Gamal <[EMAIL PROTECTED]>
Since checking for vcpu->arch.rmode.active is already done whenever we
call handle_rmode_exception(), checking it inside the function is redundant.
Signed-off-by: Mohammed Gamal <[EMAIL PROTECTED]>
Signed-off-by: Avi Kivity <[EMAIL PROTECTED]>
---
arch/x8
From: Avi Kivity <[EMAIL PROTECTED]>
Signed-off-by: Avi Kivity <[EMAIL PROTECTED]>
---
arch/x86/kvm/i8259.c | 18 --
1 files changed, 12 insertions(+), 6 deletions(-)
diff --git a/arch/x86/kvm/i8259.c b/arch/x86/kvm/i8259.c
index c31164e..55e179a 100644
--- a/arch/x86/kvm/i8259
From: Avi Kivity <[EMAIL PROTECTED]>
Signed-off-by: Avi Kivity <[EMAIL PROTECTED]>
---
arch/x86/kvm/vmx.c | 90 +---
1 files changed, 36 insertions(+), 54 deletions(-)
diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c
index 2879880..fc8996b 10
From: Avi Kivity <[EMAIL PROTECTED]>
Currently most interrupt exit processing is handled on the entry path,
which is confusing. Move the NMI IRET fault processing to a new function,
vmx_complete_interrupts(), which is called on the vmexit path.
Signed-off-by: Avi Kivity <[EMAIL PROTECTED]>
---
From: Avi Kivity <[EMAIL PROTECTED]>
Signed-off-by: Avi Kivity <[EMAIL PROTECTED]>
---
arch/x86/kvm/svm.c | 78 +--
1 files changed, 26 insertions(+), 52 deletions(-)
diff --git a/arch/x86/kvm/svm.c b/arch/x86/kvm/svm.c
index 743c98d..179c2e0 100
From: Hollis Blanchard <[EMAIL PROTECTED]>
Move KVM trace definitions from x86 specific kvm headers to common kvm
headers to create a cross-architecture numbering scheme for trace
events. This means the kvmtrace_format userspace tool won't need to know
which architecture produced the log file bein
From: Avi Kivity <[EMAIL PROTECTED]>
Usually HOST_RSP retains its value across guest entries. Take advantage
of this and avoid a vmwrite() when this is so.
Signed-off-by: Avi Kivity <[EMAIL PROTECTED]>
---
arch/x86/kvm/vmx.c |6 ++
1 files changed, 6 insertions(+), 0 deletions(-)
diff
From: Alexander Graf <[EMAIL PROTECTED]>
Netware writes to DEBUGCTL and reads from the DEBUGCTL and LAST*IP MSRs
without further checks and is really confused to receive a #GP during that.
To make it happy we should just make them stubs, which is exactly what SVM
already does.
Writes to DEBUGCTL
From: Jan Kiszka <[EMAIL PROTECTED]>
Signed-off-by: Jan Kiszka <[EMAIL PROTECTED]>
Signed-off-by: Avi Kivity <[EMAIL PROTECTED]>
---
arch/x86/kvm/svm.c |4
arch/x86/kvm/vmx.c |2 +-
include/asm-x86/kvm_host.h |1 +
3 files changed, 2 insertions(+), 5 deletions(-)
From: Jan Kiszka <[EMAIL PROTECTED]>
As we execute real mode guests in VM86 mode, exception have to be
reinjected appropriately when the guest triggered them. For this purpose
the patch adopts the real-mode injection pattern used in vmx_inject_irq
to vmx_queue_exception, additionally taking care t
From: Hollis Blanchard <[EMAIL PROTECTED]>
Allow host userspace to program hardware debug registers to set breakpoints
inside guests.
Signed-off-by: Jerone Young <[EMAIL PROTECTED]>
Signed-off-by: Hollis Blanchard <[EMAIL PROTECTED]>
Signed-off-by: Avi Kivity <[EMAIL PROTECTED]>
---
arch/powerpc
From: Hollis Blanchard <[EMAIL PROTECTED]>
Track which TLB entries need to be written, instead of overwriting everything
below the high water mark. Typically only a single guest TLB entry will be
modified in a single exit.
Guest boot time performance improvement: about 15%.
Signed-off-by: Hollis
From: Christian Ehrhardt <[EMAIL PROTECTED]>
This patch adds a trace point for the instruction emulation on embedded powerpc
utilizing the KVM_TRACE interface.
Signed-off-by: Christian Ehrhardt <[EMAIL PROTECTED]>
Signed-off-by: Avi Kivity <[EMAIL PROTECTED]>
---
arch/powerpc/kvm/emulate.c |
From: Marcelo Tosatti <[EMAIL PROTECTED]>
Based on a patch from: Ben-Ami Yassour <[EMAIL PROTECTED]>
which was based on a patch from: Amit Shah <[EMAIL PROTECTED]>
Notify IRQ acking on PIC/APIC emulation. The previous patch missed two things:
- Edge triggered interrupts on IOAPIC
- PIC reset wit
From: Jerone Young <[EMAIL PROTECTED]>
This patch adds trace points to track powerpc TLB activities using the
KVM_TRACE infrastructure.
Signed-off-by: Jerone Young <[EMAIL PROTECTED]>
Signed-off-by: Christian Ehrhardt <[EMAIL PROTECTED]>
Signed-off-by: Avi Kivity <[EMAIL PROTECTED]>
---
arch/pow
From: Christian Ehrhardt <[EMAIL PROTECTED]>
The current kvmtrace code uses get_cycles() while the interpretation would be
easier using using nanoseconds. ktime_get() should give at least the same
accuracy as get_cycles on all architectures (even better on 32bit archs) but
at a better unit (e.g. c
From: Marcelo Tosatti <[EMAIL PROTECTED]>
The PIT injection logic is problematic under the following cases:
1) If there is a higher priority vector to be delivered by the time
kvm_pit_timer_intr_post is invoked ps->inject_pending won't be set.
This opens the possibility for missing many PIT event
From: Avi Kivity <[EMAIL PROTECTED]>
This can be used by kvm subsystems that are interested in when
interrupts are acked, for example time drift compensation.
Signed-off-by: Avi Kivity <[EMAIL PROTECTED]>
---
arch/x86/kvm/irq.c | 22 ++
arch/x86/kvm/irq.h |
From: Glauber Costa <[EMAIL PROTECTED]>
KVM intends to use paravirt code to calibrate khz. Xen
current code will do just fine. So as a first step, factor out
code to pvclock.c.
Signed-off-by: Glauber Costa <[EMAIL PROTECTED]>
Signed-off-by: Avi Kivity <[EMAIL PROTECTED]>
---
arch/x86/kernel/pvcl
From: Glauber Costa <[EMAIL PROTECTED]>
We're currently facing timing problems in guests that do
calibration under heavy load, and then the load vanishes.
This means we'll have a much lower lpj than we actually should,
and delays end up taking less time than they should, which is a
nasty bug.
Sol
From: Hollis Blanchard <[EMAIL PROTECTED]>
We're saving the host TLB state to memory on every exit, but never using it.
Originally I had thought that we'd want to restore host TLB for heavyweight
exits, but that could actually hurt when context switching to an unrelated host
process (i.e. not qemu
From: Dave Hansen <[EMAIL PROTECTED]>
We're in a hot path. We can't use kmalloc() because
it might impact performance. So, we just stick the buffer that
we need into the kvm_vcpu_arch structure. This is used very
often, so it is not really a waste.
We also have to move the buffer structure's d
From: Christian Ehrhardt <[EMAIL PROTECTED]>
This patch fixes kvmtrace use on big endian systems. When using bit fields the
compiler will lay data out in the wrong order expected when laid down into a
file.
This fixes it by using one variable instead of using bit fields.
Signed-off-by: Jerone You
From: Jerone Young <[EMAIL PROTECTED]>
This patch enables KVM_TRACE to build for PowerPC arch. This means just
adding sections to Kconfig and Makefile.
Signed-off-by: Jerone Young <[EMAIL PROTECTED]>
Signed-off-by: Christian Ehrhardt <[EMAIL PROTECTED]>
Signed-off-by: Avi Kivity <[EMAIL PROTECTED
From: Ben-Ami Yassour <[EMAIL PROTECTED]>
Userspace may specify memory slots that are backed by mmio pages rather than
normal RAM. In some cases it is not enough to identify these mmio pages
by pfn_valid(). This patch adds checking the PageReserved as well.
Signed-off-by: Ben-Ami Yassour <[EMAI
From: Ben-Ami Yassour <[EMAIL PROTECTED]>
Based on a patch from: Amit Shah <[EMAIL PROTECTED]>
This patch adds support for handling PCI devices that are assigned to
the guest.
The device to be assigned to the guest is registered in the host kernel
and interrupt delivery is handled. If a device
From: Dave Hansen <[EMAIL PROTECTED]>
[sheng: fix KVM_GET_LAPIC using wrong size]
Signed-off-by: Dave Hansen <[EMAIL PROTECTED]>
Signed-off-by: Sheng Yang <[EMAIL PROTECTED]>
Signed-off-by: Avi Kivity <[EMAIL PROTECTED]>
---
arch/x86/kvm/x86.c | 23 +++
1 files changed, 15
From: Hollis Blanchard <[EMAIL PROTECTED]>
When we use TID=N userspace mappings, we must ensure that kernel mappings have
been destroyed when entering userspace. Using TID=1/TID=0 for kernel/user
mappings and running userspace with PID=0 means that userspace can't access the
kernel mappings, but t
From: Dave Hansen <[EMAIL PROTECTED]>
Signed-off-by: Dave Hansen <[EMAIL PROTECTED]>
Signed-off-by: Avi Kivity <[EMAIL PROTECTED]>
---
virt/kvm/kvm_main.c | 46 --
1 files changed, 28 insertions(+), 18 deletions(-)
diff --git a/virt/kvm/kvm_main.c b/
From: Dave Hansen <[EMAIL PROTECTED]>
On my machine with gcc 3.4, kvm uses ~2k of stack in a few
select functions. This is mostly because gcc fails to
notice that the different case: statements could have their
stack usage combined. It overflows very nicely if interrupts
happen during one of the
Zhang, Xiantao wrote:
Hi, Avi
Seems this patch is missing after merging with Qemu upstream,
please help to apply it again.
Sure; done.
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* Anthony Liguori <[EMAIL PROTECTED]> [2008-09-22 21:49]:
> Ryan Harper wrote:
> >If the aio handler doesn't register an io_flush handler, we'd SEGV; fix
> >that by
> >only calling the flush handler if set. BTW, aio handlers *should*
> >register an
> >io_flush routine.
> >
> >Signed-off-by: Ryan
>>> What is the oldest version that doesn't work? (i.e. when was the regression
>>> introduced?)
>>
>> I can (almost) be sure the kvm-70 did not have stalls and that kvm 73
>> certainly
>> has this problem.
>>
>> Never tried 71 and I am not sure about 72 (haven't ran it for long
>> time and upgra
Ryan Harper wrote:
* Anthony Liguori <[EMAIL PROTECTED]> [2008-09-22 21:49]:
Ryan Harper wrote:
If the aio handler doesn't register an io_flush handler, we'd SEGV; fix
that by
only calling the flush handler if set. BTW, aio handlers *should*
register an
io_flush routine.
Signed-off-
Bugs item #2124690, was opened at 2008-09-23 16:38
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* Anthony Liguori <[EMAIL PROTECTED]> [2008-09-22 21:52]:
> Ryan Harper wrote:
> >+//#define DEBUG_BLOCK_AIO
> >+#if defined(DEBUG_BLOCK_AIO)
> >+#define BLPRINTF(formatCstr, args...) do { fprintf(stderr, formatCstr,
> >##args); fflush(stderr); } while (0)
> >
>
> This is GCC syntax. You shou
On Mon, Sep 22, 2008 at 08:21:18PM +0200, Joerg Roedel wrote:
> Signed-off-by: Joerg Roedel <[EMAIL PROTECTED]>
> ---
> arch/x86/kernel/pci-calgary_64.c | 21 +++--
> 1 files changed, 11 insertions(+), 10 deletions(-)
>
> diff --git a/arch/x86/kernel/pci-calgary_64.c
> b/arch/x
Ryan Harper wrote:
* Anthony Liguori <[EMAIL PROTECTED]> [2008-09-22 21:52]:
Ryan Harper wrote:
This was taken from block-raw-posix.c, DEBUG_BLOCK. I'll change up the
DEBUG_BLOCK_AIO, should I also submit a patch to rework DEBUG_BLOCK?
Yes, please.
+typedef struct AIODriver
* Anthony Liguori <[EMAIL PROTECTED]> [2008-09-23 09:36]:
> Ryan Harper wrote:
> >* Anthony Liguori <[EMAIL PROTECTED]> [2008-09-22 21:49]:
> >
> >>Ryan Harper wrote:
> >>
> >>>If the aio handler doesn't register an io_flush handler, we'd SEGV; fix
> >>>that by
> >>>only calling the flush ha
* Anthony Liguori <[EMAIL PROTECTED]> [2008-09-22 22:44]:
> Can you run the same performance tests with the following patches (using
> sync=on instead of cache=off)?
>
> You'll need my aio_init fix too. I suspect this will give equally good
> performance to your patch set. That's not saying yo
Ryan Harper wrote:
* Anthony Liguori <[EMAIL PROTECTED]> [2008-09-22 22:44]:
Can you run the same performance tests with the following patches (using
sync=on instead of cache=off)?
You'll need my aio_init fix too. I suspect this will give equally good
performance to your patch set. That'
Ryan Harper wrote:
* Anthony Liguori <[EMAIL PROTECTED]> [2008-09-23 09:36]:
I disagree that anything is worse off by not SEGV'ing, In any case, what
do you want here?
Read or Write must be set along with flush or we error in fd
registration?
Yes.
Regards,
Anthony Liguori
--
To uns
Ryan Harper wrote:
>> So what happens if !defined(CONFIG_AIO)? By my reading of the code,
>> aio_drv will be NULL and this will SEGV.
>
> raw_aio_read/write/cancel aren't included in the bdrv structure unless
> CONFIG_AIO is defined. Rather in bdrv_register, the aio emulation
> functions are us
Signed-off-by: Amit Shah <[EMAIL PROTECTED]>
---
qemu/hw/pci.c |5 +
qemu/hw/pci.h |1 +
2 files changed, 6 insertions(+), 0 deletions(-)
diff --git a/qemu/hw/pci.c b/qemu/hw/pci.c
index 07d37a8..61ff0f6 100644
--- a/qemu/hw/pci.c
+++ b/qemu/hw/pci.c
@@ -560,6 +560,11 @@ static void p
Signed-off-by: Amit Shah <[EMAIL PROTECTED]>
---
qemu/hw/piix_pci.c | 19 +++
1 files changed, 19 insertions(+), 0 deletions(-)
diff --git a/qemu/hw/piix_pci.c b/qemu/hw/piix_pci.c
index 6fbf47b..dc12c8a 100644
--- a/qemu/hw/piix_pci.c
+++ b/qemu/hw/piix_pci.c
@@ -243,6 +243,25
Signed-off-by: Amit Shah <[EMAIL PROTECTED]>
---
libkvm/libkvm.c | 13 +
libkvm/libkvm.h | 27 +++
2 files changed, 40 insertions(+), 0 deletions(-)
diff --git a/libkvm/libkvm.c b/libkvm/libkvm.c
index 63fbcba..7744daa 100644
--- a/libkvm/libkvm.c
+++ b/lib
This patchset enables device assignment for KVM hosts for PCI devices. It uses
the Intel IOMMU by default if available.
Major changes since the last send:
- More error checking
- Change data structure names to match qemu style
- Add support for hot-adding devices (this works, but is currently RF
Signed-off-by: Amit Shah <[EMAIL PROTECTED]>
---
kernel/x86/Kbuild |3 +++
1 files changed, 3 insertions(+), 0 deletions(-)
diff --git a/kernel/x86/Kbuild b/kernel/x86/Kbuild
index 8dc0483..a4cd00c 100644
--- a/kernel/x86/Kbuild
+++ b/kernel/x86/Kbuild
@@ -5,6 +5,9 @@ kvm-objs := kvm_main.o x
This patch adds support for hot-plugging host PCI devices into
guests
Signed-off-by: Amit Shah <[EMAIL PROTECTED]>
---
qemu/hw/device-hotplug.c | 19 +++
qemu/monitor.c |2 +-
2 files changed, 20 insertions(+), 1 deletions(-)
diff --git a/qemu/hw/device-hotplug.c
From: Or Sagi <[EMAIL PROTECTED]>
From: Nir Peleg <[EMAIL PROTECTED]>
From: Amit Shah <[EMAIL PROTECTED]>
From: Ben-Ami Yassour <[EMAIL PROTECTED]>
From: Weidong Han <[EMAIL PROTECTED]>
From: Glauber de Oliveira Costa <[EMAIL PROTECTED]>
With this patch, we can assign a device on the host machine
Signed-off-by: Amit Shah <[EMAIL PROTECTED]>
---
qemu/hw/isa.h |2 ++
1 files changed, 2 insertions(+), 0 deletions(-)
diff --git a/qemu/hw/isa.h b/qemu/hw/isa.h
index 222e4f3..e4a1326 100644
--- a/qemu/hw/isa.h
+++ b/qemu/hw/isa.h
@@ -2,6 +2,8 @@
#define HW_ISA_H
/* ISA bus */
+#include
Yang, Sheng wrote:
> On Friday 19 September 2008 20:03:02 Jan Kiszka wrote:
>> LINT0 of the LAPIC can be used to route PIT events as NMI watchdog
>> ticks into the guest. This patch aligns the in-kernel irqchip emulation
>> with the user space irqchip with already supports this feature. The
>> tric
Yang, Sheng wrote:
> On Tuesday 23 September 2008 17:00:21 Gleb Natapov wrote:
>> On Tue, Sep 23, 2008 at 10:57:40AM +0200, Jan Kiszka wrote:
>>> Gleb Natapov wrote:
On Tue, Sep 23, 2008 at 10:46:38AM +0200, Jan Kiszka wrote:
> Gleb Natapov wrote:
>> On Mon, Sep 22, 2008 at 09:59:07AM
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