On 04/19/2013 07:59 AM, Stefan Hajnoczi wrote:
Hi Stefan,
> BTW does the host CPU support Intel Extended Page Tables or AMD Nested
> Page Tables? grep 'npt\|ept' /proc/cpuinfo
>
> (I think the kvm_stat is saying EPT/NPT are not in use)
Host CPU has EPT.
> That is virt-manager.py, exactly doing
On Thu, Apr 18, 2013 at 03:27:45PM +0200, Martin Wawro wrote:
> On 04/18/2013 03:14 PM, Stefan Hajnoczi wrote:
> > No answer but some more questions.
> >
> > Regarding the kvm_stat output, the exits are caused by 68,000
> > pagefaults/second (pf_fixed). Perhaps someone can explain what this
> > me
At present, the KVM_GET_DIRTY_LOG ioctl doesn't report modifications
done by the host to the virtual processor areas (VPAs) and dispatch
trace logs (DTLs) registered by the guest. This is because those
modifications are done either in real mode or in the host kernel
context, and in neither case do
At present, the code that determines whether a HPT entry has changed,
and thus needs to be sent to userspace when it is copying the HPT,
doesn't consider a hardware update to the reference and change bits
(R and C) in the HPT entries to constitute a change that needs to
be sent to userspace. This
This series of two patches fixes a couple of bugs in live migration
under HV-style KVM on PPC. They only touch PPC/HV code and add no new
APIs. The patches are against Alex Graf's kvm-ppc-next branch. I
would like them to go in for 3.10.
Paul.
arch/powerpc/include/asm/kvm_book3s.h|3 +
We can provide this emulation to simplify more extension later.
Signed-off-by: Tiejun Chen
---
arch/powerpc/include/asm/disassemble.h |4
arch/powerpc/kvm/e500_emulate.c| 17 +
2 files changed, 21 insertions(+)
diff --git a/arch/powerpc/include/asm/disassemble
On Thu, Apr 18, 2013 at 11:21:54AM +0300, Michael S. Tsirkin wrote:
> On Thu, Apr 18, 2013 at 04:59:08PM +0800, Asias He wrote:
> > On Thu, Apr 18, 2013 at 10:34:29AM +0300, Michael S. Tsirkin wrote:
> > > On Thu, Apr 18, 2013 at 09:05:54AM +0800, Asias He wrote:
> > > > In commit 365a7150094 ([SCS
On 04/18/2013 08:09:23 PM, Alexander Graf wrote:
On 19.04.2013, at 02:50, Scott Wood wrote:
> On 04/18/2013 07:15:46 PM, Alexander Graf wrote:
>> On 18.04.2013, at 23:39, Scott Wood wrote:
>> > On 04/18/2013 09:11:55 AM, Alexander Graf wrote:
>> >> +static inline int irqchip_in_kernel(struct kv
On 19.04.2013, at 02:50, Scott Wood wrote:
> On 04/18/2013 07:15:46 PM, Alexander Graf wrote:
>> On 18.04.2013, at 23:39, Scott Wood wrote:
>> > On 04/18/2013 09:11:55 AM, Alexander Graf wrote:
>> >> +static inline int irqchip_in_kernel(struct kvm *kvm)
>> >> +{
>> >> + int ret = 0;
>> >> +
>> >>
>> On Thu, Apr 18, 2013 at 12:00:49PM +, Zhanghaoyu (A) wrote:
>>> I start 10 VMs(windows xp), then running geekbench tool on them,
>>> about 2 days, one of them was reset, I found the reset operation is
>>> done by int kvm_cpu_exec(CPUArchState *env) {
>>>...
>>> switch (run->exit_
On 04/18/2013 07:15:46 PM, Alexander Graf wrote:
On 18.04.2013, at 23:39, Scott Wood wrote:
> On 04/18/2013 09:11:55 AM, Alexander Graf wrote:
>> +static inline int irqchip_in_kernel(struct kvm *kvm)
>> +{
>> + int ret = 0;
>> +
>> +#ifdef CONFIG_KVM_MPIC
>> + ret = ret || (kvm->arch.
On 18.04.2013, at 23:39, Scott Wood wrote:
> On 04/18/2013 09:11:55 AM, Alexander Graf wrote:
>> Now that all the irq routing and irqfd pieces are generic, we can expose
>> real irqchip support to all of KVM's internal helpers.
>> This allows us to use irqfd with the in-kernel MPIC.
>> Signed-off
On Wed, Apr 17, 2013 at 04:02:00PM +0200, Borislav Petkov wrote:
> Right, so basically we want to handle features which were explicitly
> enabled only for this guest as private, only relevant to this
> particular guest run.
Ok,
here are two more ideas Joerg and I had today during lunch:
* reuse
All:
We would like to hold a combined ACPI/PM, PCI focused microconference
as part of this year's Linux Plumbers conference but first we need to
show that there is enough interest and material that needs covered.
There is a lot of activity in these subsystems so please respond by
submitting prese
On 04/18/2013 09:11:55 AM, Alexander Graf wrote:
Now that all the irq routing and irqfd pieces are generic, we can
expose
real irqchip support to all of KVM's internal helpers.
This allows us to use irqfd with the in-kernel MPIC.
Signed-off-by: Alexander Graf
---
arch/powerpc/include/asm/kv
On Thu, Apr 18, 2013 at 07:36:03PM +0300, Gleb Natapov wrote:
> On Thu, Apr 18, 2013 at 11:01:18AM -0300, Marcelo Tosatti wrote:
> > On Thu, Apr 18, 2013 at 12:42:39PM +0300, Gleb Natapov wrote:
> > > > > that, but if not then less code is better.
> > > >
> > > > The number of sp->role.invalid=1 p
If userspace creates and destroys multiple VMs within the same process
we leak 20k of memory in the userspace process context per VM. This
patch frees the memory in kvm_arch_destroy_vm. If the process exits
without closing the VM file descriptor or the file descriptor has been
shared with anothe
On Thu, Apr 18, 2013 at 11:01:18AM -0300, Marcelo Tosatti wrote:
> On Thu, Apr 18, 2013 at 12:42:39PM +0300, Gleb Natapov wrote:
> > > > that, but if not then less code is better.
> > >
> > > The number of sp->role.invalid=1 pages is small (only shadow roots). It
> > > can grow but is bounded to a
On 18/04/13 16:54, Russell King - ARM Linux wrote:
> On Fri, Apr 05, 2013 at 10:08:04AM +0100, Marc Zyngier wrote:
>> On 04/04/13 23:10, Geoff Levand wrote:
>>> Hi,
>>>
>>> On Tue, 2013-04-02 at 14:25 +0100, Marc Zyngier wrote:
+ @ Jump to the trampoline page
+ ldr r2, =#PAGE_MASK
>
On Fri, Apr 05, 2013 at 10:08:04AM +0100, Marc Zyngier wrote:
> On 04/04/13 23:10, Geoff Levand wrote:
> > Hi,
> >
> > On Tue, 2013-04-02 at 14:25 +0100, Marc Zyngier wrote:
> >> + @ Jump to the trampoline page
> >> + ldr r2, =#PAGE_MASK
> >> + adr r3, target
> >> + bic r3, r3, r2
On 04/18/2013 09:29 PM, Marcelo Tosatti wrote:
> On Thu, Apr 18, 2013 at 10:03:06AM -0300, Marcelo Tosatti wrote:
>> On Thu, Apr 18, 2013 at 12:00:16PM +0800, Xiao Guangrong wrote:
What is the justification for this?
>>>
>>> We want the rmap of being deleted memslot is removed-only that
On Thu, Apr 18, 2013 at 02:47:21PM +, Ren, Yongjie wrote:
> > -Original Message-
> > From: Gleb Natapov [mailto:g...@redhat.com]
> > Sent: Thursday, April 18, 2013 7:08 PM
> > To: Ren, Yongjie
> > Cc: Marcelo Tosatti; kvm@vger.kernel.org; qemu-de...@nongnu.org;
> > ehabk...@redhat.com
>
On 18.04.2013, at 16:29, Scott Wood wrote:
> On 04/18/2013 09:11:57 AM, Alexander Graf wrote:
>> The code as is doesn't make any sense on non-e500 platforms.
>
> Why? What actually breaks?
It broke even compiling, because book3s doesn't provide anything for EPR for
example. I fixed up the iss
> -Original Message-
> From: Gleb Natapov [mailto:g...@redhat.com]
> Sent: Thursday, April 18, 2013 7:08 PM
> To: Ren, Yongjie
> Cc: Marcelo Tosatti; kvm@vger.kernel.org; qemu-de...@nongnu.org;
> ehabk...@redhat.com
> Subject: Re: [PATCH] target-i386: upgrade family number of qemu64 CPU
> m
On 04/18/2013 09:11:57 AM, Alexander Graf wrote:
The code as is doesn't make any sense on non-e500 platforms.
Why? What actually breaks?
You never answered my earlier question about whether 74xx is
supported. MPC86xx is 74xx-derived and has an FSL MPIC.
Plus, as pointed out earlier, this
I need your assistance to move funds from Singapore. I will forward
details upon your request.
Cham Tao Soon
This message was sent using IMP, the Internet Messaging Program.
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To unsubscribe from this list: send the line "u
The IRQ routing set ioctl lives in the hacky device assignment code inside
of KVM today. This is definitely the wrong place for it. Move it to the much
more natural kvm_main.c.
Signed-off-by: Alexander Graf
---
virt/kvm/assigned-dev.c | 30 --
virt/kvm/kvm_main.c
The concept of routing interrupt lines to an irqchip is nothing
that is IOAPIC specific. Every irqchip has a maximum number of pins
that can be linked to irq lines.
So let's add a new define that allows us to reuse generic code for
non-IOAPIC platforms.
Signed-off-by: Alexander Graf
---
arch/x8
Now that all pieces are in place for reusing generic irq infrastructure,
we can copy x86's implementation of KVM_IRQ_LINE irq injection and simply
reuse it for PPC, as it will work there just as well.
Signed-off-by: Alexander Graf
---
arch/powerpc/include/uapi/asm/kvm.h |1 +
arch/powerpc/kv
Quite a bit of code in KVM has been conditionalized on availability of
IOAPIC emulation. However, most of it is generically applicable to
platforms that don't have an IOPIC, but a different type of irq chip.
Make code that only relies on IRQ routing, not an APIC itself, on
CONFIG_HAVE_KVM_IRQ_ROUT
From: Scott Wood
Currently, devices that are emulated inside KVM are configured in a
hardcoded manner based on an assumption that any given architecture
only has one way to do it. If there's any need to access device state,
it is done through inflexible one-purpose-only IOCTLs (e.g.
KVM_GET/SET_
Now that we have most irqfd code completely platform agnostic, let's move
irqfd's resample capability return to generic code as well.
Signed-off-by: Alexander Graf
---
arch/x86/kvm/x86.c |1 -
virt/kvm/kvm_main.c |3 +++
2 files changed, 3 insertions(+), 1 deletions(-)
diff --git a/arc
Setting up IRQ routes is nothing IOAPIC specific. Extract everything
that really is generic code into irqchip.c and only leave the ioapic
specific bits to irq_comm.c.
Signed-off-by: Alexander Graf
---
include/linux/kvm_host.h |3 ++
virt/kvm/irq_comm.c | 76 ++-
The current irq_comm.c file contains pieces of code that are generic
across different irqchip implementations, as well as code that is
fully IOAPIC specific.
Split the generic bits out into irqchip.c.
Signed-off-by: Alexander Graf
---
arch/x86/kvm/Makefile |2 +-
include/trace/events/k
Hi,
This patch set contains a fully working implementation of the in-kernel MPIC
from Scott with a few fixups and a new version of my irqfd generalization
patch set.
Major changes to my last irqfd set are:
- depend on CONFIG_ defines rather than __KVM defines
- fix compile issues
- fix the
From: Scott Wood
This is QEMU's hw/openpic.c from commit
abd8d4a4d6dfea7ddea72f095f993e1de941614e ("Update version for
1.4.0-rc0"), run through Lindent with no other changes to ease merging
future changes between Linux and QEMU. Remaining style issues
(including those introduced by Lindent) will
The code as is doesn't make any sense on non-e500 platforms. Restrict it
there, so that people don't get wrong ideas on what would actually work.
This patch should get reverted as soon as it's possible to either run e500
guests on non-e500 hosts or the MPIC emulation gains support for non-e500
mod
From: Scott Wood
Remove braces that Linux style doesn't permit, remove space after
'*' that Lindent added, keep error/debug strings contiguous, etc.
Substitute type names, debug prints, etc.
Signed-off-by: Scott Wood
Signed-off-by: Alexander Graf
---
arch/powerpc/kvm/mpic.c | 445 ++
Now that all the irq routing and irqfd pieces are generic, we can expose
real irqchip support to all of KVM's internal helpers.
This allows us to use irqfd with the in-kernel MPIC.
Signed-off-by: Alexander Graf
---
arch/powerpc/include/asm/kvm_host.h |7 ++
arch/powerpc/include/uapi/asm/kvm
From: Scott Wood
Remove some parts of the code that are obviously QEMU or Raven specific
before fixing style issues, to reduce the style issues that need to be
fixed.
Signed-off-by: Scott Wood
Signed-off-by: Alexander Graf
---
arch/powerpc/kvm/mpic.c | 344 ---
From: Scott Wood
Hook the MPIC code up to the KVM interfaces, add locking, etc.
Signed-off-by: Scott Wood
[agraf: add stub function for kvmppc_mpic_set_epr, non-booke, 64bit]
Signed-off-by: Alexander Graf
---
Documentation/virtual/kvm/devices/mpic.txt | 37 ++
arch/powerpc/include/asm/kvm_h
From: Scott Wood
Enabling this capability connects the vcpu to the designated in-kernel
MPIC. Using explicit connections between vcpus and irqchips allows
for flexibility, but the main benefit at the moment is that it
simplifies the code -- KVM doesn't need vm-global state to remember
which MPIC
We have a capability enquire system that allows user space to ask kvm
whether a feature is available.
The point behind this system is that we can have different kernel
configurations with different capabilities and user space can adjust
accordingly.
Because features can always be non existent, we
The prototype has been stale for a while, I can't spot any real function
define behind it. Let's just remove it.
Signed-off-by: Alexander Graf
---
include/linux/kvm_host.h |5 -
1 files changed, 0 insertions(+), 5 deletions(-)
diff --git a/include/linux/kvm_host.h b/include/linux/kvm_ho
On Thu, Apr 18, 2013 at 12:42:39PM +0300, Gleb Natapov wrote:
> > > that, but if not then less code is better.
> >
> > The number of sp->role.invalid=1 pages is small (only shadow roots). It
> > can grow but is bounded to a handful. No improvement visible there.
> >
> > The number of shadow pages
On Thu, Apr 18, 2013 at 12:00:16PM +0800, Xiao Guangrong wrote:
> >
> > What is the justification for this?
>
> We want the rmap of being deleted memslot is removed-only that is
> needed for unmapping rmap out of mmu-lock.
>
> ==
> 1) do not corrupt the rmap
> 2) keep pte-list-descs availab
On Thu, Apr 18, 2013 at 11:46:29AM +0200, Borislav Petkov wrote:
> On Wed, Apr 17, 2013 at 08:25:07PM -0300, Marcelo Tosatti wrote:
> > On Tue, Apr 16, 2013 at 06:18:52PM +0200, Borislav Petkov wrote:
> > > On Sun, Apr 14, 2013 at 01:03:20PM +0200, Borislav Petkov wrote:
> > > > On Sun, Apr 14, 201
On Thu, Apr 18, 2013 at 10:03:06AM -0300, Marcelo Tosatti wrote:
> On Thu, Apr 18, 2013 at 12:00:16PM +0800, Xiao Guangrong wrote:
> > >
> > > What is the justification for this?
> >
> > We want the rmap of being deleted memslot is removed-only that is
> > needed for unmapping rmap out of mmu-lo
On Apr 18, 2013, at 3:55 PM, Gleb Natapov wrote:
> On Thu, Apr 18, 2013 at 12:00:49PM +, Zhanghaoyu (A) wrote:
>> I start 10 VMs(windows xp), then running geekbench tool on them, about 2
>> days, one of them was reset,
>> I found the reset operation is done by
>> int kvm_cpu_exec(CPUArchStat
On 04/18/2013 03:14 PM, Stefan Hajnoczi wrote:
Dear Stefan,
> No answer but some more questions.
>
> Regarding the kvm_stat output, the exits are caused by 68,000
> pagefaults/second (pf_fixed). Perhaps someone can explain what this
> means?
>
> The host has 8 cores, the guest has 7. Host pidst
On Thu, Apr 18, 2013 at 12:00 PM, Martin Wawro wrote:
> On 04/18/2013 09:25 AM, Stefan Hajnoczi wrote:
>> I see. That's a good reason to carefully monitor the host for things
>> that could interfere with guest performance.
>>
>> Stefan
> Seems that today is a bad day for our server. We had to giv
On Thu, Apr 18, 2013 at 12:00:49PM +, Zhanghaoyu (A) wrote:
> I start 10 VMs(windows xp), then running geekbench tool on them, about 2
> days, one of them was reset,
> I found the reset operation is done by
> int kvm_cpu_exec(CPUArchState *env)
> {
> ...
>switch (run->exit_reason)
On 04/18/2013 02:34 PM, Abel Gordon wrote:
> This series of patches implements shadow-vmcs capability for nested VMX.
>
> Shadow-vmcs - background and overview:
>
> In Intel VMX, vmread and vmwrite privileged instructions are used by the
> hypervisor to read and modify the guest and host specif
On Thu, Apr 18, 2013 at 02:34:25PM +0300, Abel Gordon wrote:
> This series of patches implements shadow-vmcs capability for nested VMX.
>
> Shadow-vmcs - background and overview:
>
> In Intel VMX, vmread and vmwrite privileged instructions are used by the
> hypervisor to read and modify the gue
On 04/18/2013 07:38 PM, Gleb Natapov wrote:
> On Thu, Apr 18, 2013 at 07:22:23PM +0800, Xiao Guangrong wrote:
>> On 04/18/2013 07:00 PM, Gleb Natapov wrote:
>>> On Tue, Apr 16, 2013 at 02:32:46PM +0800, Xiao Guangrong wrote:
pte_list_clear_concurrently allows us to reset pte-desc entry
ou
Once L1 loads VMCS12 we enable shadow-vmcs capability and copy all the VMCS12
shadowed fields to the shadow vmcs. When we release the VMCS12, we also
disable shadow-vmcs capability.
Signed-off-by: Abel Gordon
---
arch/x86/kvm/vmx.c | 11 +++
1 file changed, 11 insertions(+)
--- .befo
Synchronize between the VMCS12 software controlled structure and the
processor-specific shadow vmcs
Signed-off-by: Abel Gordon
---
arch/x86/kvm/vmx.c | 32
1 file changed, 32 insertions(+)
--- .before/arch/x86/kvm/vmx.c 2013-04-18 13:31:35.0 +0300
+++
Introduce a function used to copy fields from the software controlled VMCS12
to the processor-specific shadow vmcs
Signed-off-by: Abel Gordon
---
arch/x86/kvm/vmx.c | 45 +++
1 file changed, 45 insertions(+)
--- .before/arch/x86/kvm/vmx.c 2013-04-18 13
On Thu, Apr 18, 2013 at 07:22:23PM +0800, Xiao Guangrong wrote:
> On 04/18/2013 07:00 PM, Gleb Natapov wrote:
> > On Tue, Apr 16, 2013 at 02:32:46PM +0800, Xiao Guangrong wrote:
> >> pte_list_clear_concurrently allows us to reset pte-desc entry
> >> out of mmu-lock. We can reset spte out of mmu-loc
Introduce a function used to copy fields from the processor-specific shadow
vmcs to the software controlled VMCS12
Signed-off-by: Abel Gordon
---
arch/x86/kvm/vmx.c | 35 +++
1 file changed, 35 insertions(+)
--- .before/arch/x86/kvm/vmx.c 2013-04-18 13:31:35.0
Unmap vmcs12 and release the corresponding shadow vmcs
Signed-off-by: Abel Gordon
---
arch/x86/kvm/vmx.c | 20
1 file changed, 12 insertions(+), 8 deletions(-)
--- .before/arch/x86/kvm/vmx.c 2013-04-18 13:31:35.0 +0300
+++ .after/arch/x86/kvm/vmx.c 2013-04-18
Allocate a shadow vmcs used by the processor to shadow part of the fields
stored in the software defined VMCS12 (let L1 access fields without causing
exits). Note we keep a shadow vmcs only for the current vmcs12. Once a vmcs12
becomes non-current, its shadow vmcs is released.
Signed-off-by: Abe
handle_vmon doesn't check if L1 is already in root mode (VMXON
was previously called). This patch adds this missing check and calls
nested_vmx_failValid if VMX is already ON.
We need this check because L0 will allocate the shadow vmcs when L1
executes VMXON and we want to avoid host leaks (due to s
Refactor existent code so we re-use vmcs12_write_any to copy fields from the
shadow vmcs specified by the link pointer (used by the processor,
implementation-specific) to the VMCS12 software format used by L0 to hold
the fields in L1 memory address space.
Signed-off-by: Abel Gordon
---
arch/x86/
Prepare vmread and vmwrite bitmaps according to a pre-specified list of fields.
These lists are intended to specifiy most frequent accessed fields so we can
minimize the number of fields that are copied from/to the software controlled
VMCS12 format to/from to processor-specific shadow vmcs. The lis
Add logic required to detect if shadow-vmcs is supported by the
processor. Introduce a new kernel module parameter to specify if L0 should use
shadow vmcs (or not) to run L1.
Signed-off-by: Abel Gordon
---
arch/x86/kvm/vmx.c | 25 -
1 file changed, 24 insertions(+), 1 d
Add definitions for all the vmcs control fields/bits
required to enable vmcs-shadowing
Signed-off-by: Abel Gordon
---
arch/x86/include/asm/vmx.h|3 +++
arch/x86/include/uapi/asm/msr-index.h |2 ++
2 files changed, 5 insertions(+)
--- .before/arch/x86/include/asm/vmx.h 2013-
This series of patches implements shadow-vmcs capability for nested VMX.
Shadow-vmcs - background and overview:
In Intel VMX, vmread and vmwrite privileged instructions are used by the
hypervisor to read and modify the guest and host specifications (VMCS). In a
nested virtualization environmen
On 04/18/2013 07:00 PM, Gleb Natapov wrote:
> On Tue, Apr 16, 2013 at 02:32:46PM +0800, Xiao Guangrong wrote:
>> pte_list_clear_concurrently allows us to reset pte-desc entry
>> out of mmu-lock. We can reset spte out of mmu-lock if we can protect the
>> lifecycle of sp, we use this way to achieve t
> > On Mon, Apr 08, 2013 at 12:27:06PM +, Zhanghaoyu (A) wrote:
> >> On Sun, Apr 07, 2013 at 04:58:07AM +, Zhanghaoyu (A) wrote:
> >> I start a kvm VM with vnc(using the zrle protocol) connect, sometimes
> >> qemu program crashed during starting period, received signal SIGABRT.
> >
On Thu, Apr 18, 2013 at 10:45:38AM +, Ren, Yongjie wrote:
> qemu64 is the default CPU model for QEMU/KVM on x86-64, but its family number
> definition is not accurate. The vendor of 'qemu64' is defined as 'AMD'. For
> AMD
> processors, AMD K8 (i.e. Family 15) firstly introduced SSE3 instruct
On Tue, Apr 16, 2013 at 02:32:46PM +0800, Xiao Guangrong wrote:
> pte_list_clear_concurrently allows us to reset pte-desc entry
> out of mmu-lock. We can reset spte out of mmu-lock if we can protect the
> lifecycle of sp, we use this way to achieve the goal:
>
> unmap_memslot_rmap_nolock():
> for-
qemu64 is the default CPU model for QEMU/KVM on x86-64, but its family number
definition is not accurate. The vendor of 'qemu64' is defined as 'AMD'. For AMD
processors, AMD K8 (i.e. Family 15) firstly introduced SSE3 instruction set.
'qemu64' already has 'CPUID_EXT_SSE3' in its ext_features, bu
On Thu, Apr 18, 2013 at 01:16:34PM +0300, Abel Gordon wrote:
>
>
> Gleb Natapov wrote on 18/04/2013 12:12:18 PM:
>
> > On Thu, Apr 18, 2013 at 11:37:59AM +0300, Abel Gordon wrote:
> > > Unmap vmcs12 and release the corresponding shadow vmcs
> > >
> > > Signed-off-by: Abel Gordon
> > > ---
> >
On Wed, Apr 17, 2013 at 10:54:32AM -0700, Andrew Honig wrote:
>
> If userspace creates and destroys multiple VMs within the same process
> we leak 20k of memory in the userspace process context per VM. This
> patch frees the memory in kvm_arch_destroy_vm. If the process exits
> without closing t
On Thu, Apr 18, 2013 at 11:55:33AM +0200, Geert Uytterhoeven wrote:
> On Thu, Apr 18, 2013 at 11:46 AM, Borislav Petkov wrote:
> > ok, maybe I wasn't clear enough. My proposal was to actually add all (or
> > maybe not *all* of them, but most) those selects above to the KVM_GUEST
> > config option.
Gleb Natapov wrote on 18/04/2013 12:12:18 PM:
> On Thu, Apr 18, 2013 at 11:37:59AM +0300, Abel Gordon wrote:
> > Unmap vmcs12 and release the corresponding shadow vmcs
> >
> > Signed-off-by: Abel Gordon
> > ---
> > arch/x86/kvm/vmx.c | 20
> > 1 file changed, 12 inserti
On 04/18/2013 09:25 AM, Stefan Hajnoczi wrote:
Hi Stefan,
> I see. That's a good reason to carefully monitor the host for things
> that could interfere with guest performance.
>
> Stefan
Seems that today is a bad day for our server. We had to give him the
boot (again).
Also the results of the pi
On Thu, Apr 18, 2013 at 11:46 AM, Borislav Petkov wrote:
> ok, maybe I wasn't clear enough. My proposal was to actually add all (or
> maybe not *all* of them, but most) those selects above to the KVM_GUEST
> config option. Because, you very probably want to select all that stuff
> above anyway if
On Wed, Apr 17, 2013 at 08:25:07PM -0300, Marcelo Tosatti wrote:
> On Tue, Apr 16, 2013 at 06:18:52PM +0200, Borislav Petkov wrote:
> > On Sun, Apr 14, 2013 at 01:03:20PM +0200, Borislav Petkov wrote:
> > > On Sun, Apr 14, 2013 at 12:31:12PM +0300, Pekka Enberg wrote:
> > > > I obviously support ha
On Wed, Apr 17, 2013 at 05:39:04PM -0300, Marcelo Tosatti wrote:
> On Fri, Mar 22, 2013 at 09:15:24PM +0200, Gleb Natapov wrote:
> > On Fri, Mar 22, 2013 at 08:37:33PM +0800, Xiao Guangrong wrote:
> > > On 03/22/2013 08:12 PM, Gleb Natapov wrote:
> > > > On Fri, Mar 22, 2013 at 08:03:04PM +0800, Xi
On 04/11/13 11:29, Stefan Hajnoczi wrote:
> On Mon, Apr 08, 2013 at 12:27:06PM +, Zhanghaoyu (A) wrote:
>> On Sun, Apr 07, 2013 at 04:58:07AM +, Zhanghaoyu (A) wrote:
>> I start a kvm VM with vnc(using the zrle protocol) connect, sometimes
>> qemu program crashed during starting pe
On Thu, Apr 18, 2013 at 04:59:08PM +0800, Asias He wrote:
> On Thu, Apr 18, 2013 at 10:34:29AM +0300, Michael S. Tsirkin wrote:
> > On Thu, Apr 18, 2013 at 09:05:54AM +0800, Asias He wrote:
> > > In commit 365a7150094 ([SCSI] virtio-scsi: hotplug support for
> > > virtio-scsi), hotplug support is a
On Tue, Apr 16, 2013 at 02:46:47AM +0200, Andreas Färber wrote:
> From: Igor Mammedov
>
> ... so it could be called without requiring CPUArchState.
>
> Signed-off-by: Igor Mammedov
> Reviewed-by: Eduardo Habkost
> Signed-off-by: Andreas Färber
Acked-by: Gleb Natapov
> ---
> cpus.c
On Thu, Apr 18, 2013 at 11:37:59AM +0300, Abel Gordon wrote:
> Unmap vmcs12 and release the corresponding shadow vmcs
>
> Signed-off-by: Abel Gordon
> ---
> arch/x86/kvm/vmx.c | 20
> 1 file changed, 12 insertions(+), 8 deletions(-)
>
> --- .before/arch/x86/kvm/vmx.c
On Thu, Apr 18, 2013 at 10:34:29AM +0300, Michael S. Tsirkin wrote:
> On Thu, Apr 18, 2013 at 09:05:54AM +0800, Asias He wrote:
> > In commit 365a7150094 ([SCSI] virtio-scsi: hotplug support for
> > virtio-scsi), hotplug support is added to virtio-scsi.
> >
> > This patch adds hotplug and hotunplu
On Thu, Apr 18, 2013 at 10:20:05AM +0200, Paolo Bonzini wrote:
> Il 18/04/2013 01:03, Andrew Honig ha scritto:
> > I don't have a significant objection to freeing the memory in
> > kvm_arch_free_memslot, although I think it's a little harder to
> > understand. I like the idea of being symmetric (m
On Thu, Apr 18, 2013 at 04:25:21PM +0800, Asias He wrote:
> On Thu, Apr 18, 2013 at 10:06:06AM +0300, Michael S. Tsirkin wrote:
> > On Thu, Apr 18, 2013 at 09:05:52AM +0800, Asias He wrote:
> > > This helper is useful to check if a feature is supported.
> > >
> > > Signed-off-by: Asias He
> > > R
Once L1 loads VMCS12 we enable shadow-vmcs capability and copy all the VMCS12
shadowed fields to the shadow vmcs. When we release the VMCS12, we also
disable shadow-vmcs capability.
Signed-off-by: Abel Gordon
---
arch/x86/kvm/vmx.c | 11 +++
1 file changed, 11 insertions(+)
--- .befo
Synchronize between the VMCS12 software controlled structure and the
processor-specific shadow vmcs
Signed-off-by: Abel Gordon
---
arch/x86/kvm/vmx.c | 32
1 file changed, 32 insertions(+)
--- .before/arch/x86/kvm/vmx.c 2013-04-18 11:28:23.0 +0300
+++
Introduce a function used to copy fields from the software controlled VMCS12
to the processor-specific shadow vmcs
Signed-off-by: Abel Gordon
---
arch/x86/kvm/vmx.c | 45 +++
1 file changed, 45 insertions(+)
--- .before/arch/x86/kvm/vmx.c 2013-04-18 11
Introduce a function used to copy fields from the processor-specific shadow
vmcs to the software controlled VMCS12
Signed-off-by: Abel Gordon
---
arch/x86/kvm/vmx.c | 35 +++
1 file changed, 35 insertions(+)
--- .before/arch/x86/kvm/vmx.c 2013-04-18 11:28:23.0
Unmap vmcs12 and release the corresponding shadow vmcs
Signed-off-by: Abel Gordon
---
arch/x86/kvm/vmx.c | 20
1 file changed, 12 insertions(+), 8 deletions(-)
--- .before/arch/x86/kvm/vmx.c 2013-04-18 11:28:23.0 +0300
+++ .after/arch/x86/kvm/vmx.c 2013-04-18
Allocate a shadow vmcs used by the processor to shadow part of the fields
stored in the software defined VMCS12 (let L1 access fields without causing
exits). Note we keep a shadow vmcs only for the current vmcs12. Once a vmcs12
becomes non-current, its shadow vmcs is released.
Signed-off-by: Abe
On Thu, Apr 18, 2013 at 04:32:30PM +0800, Asias He wrote:
> On Thu, Apr 18, 2013 at 10:09:53AM +0300, Michael S. Tsirkin wrote:
> > On Thu, Apr 18, 2013 at 09:05:53AM +0800, Asias He wrote:
> > > Signed-off-by: Asias He
> > > ---
> > > drivers/vhost/tcm_vhost.c | 18 ++
> > > 1 fi
handle_vmon doesn't check if L1 is already in root mode (VMXON
was previously called). This patch adds this missing check and calls
nested_vmx_failValid if VMX is already ON.
We need this check because L0 will allocate the shadow vmcs when L1
executes VMXON and we want to avoid host leaks (due to s
Refactor existent code so we re-use vmcs12_write_any to copy fields from the
shadow vmcs specified by the link pointer (used by the processor,
implementation-specific) to the VMCS12 software format used by L0 to hold
the fields in L1 memory address space.
Signed-off-by: Abel Gordon
---
arch/x86/
Prepare vmread and vmwrite bitmaps according to a pre-specified list of fields.
These lists are intended to specifiy most frequent accessed fields so we can
minimize the number of fields that are copied from/to the software controlled
VMCS12 format to/from to processor-specific shadow vmcs. The lis
Add logic required to detect if shadow-vmcs is supported by the
processor. Introduce a new kernel module parameter to specify if L0 should use
shadow vmcs (or not) to run L1.
Signed-off-by: Abel Gordon
---
arch/x86/kvm/vmx.c | 25 -
1 file changed, 24 insertions(+), 1 d
Add definitions for all the vmcs control fields/bits
required to enable vmcs-shadowing
Signed-off-by: Abel Gordon
---
arch/x86/include/asm/vmx.h|3 +++
arch/x86/include/uapi/asm/msr-index.h |2 ++
2 files changed, 5 insertions(+)
--- .before/arch/x86/include/asm/vmx.h 2013-
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