Hi,
I see the virtio-balloon is designed for memory auto balloon between
KVM host and guest, but from latest linux kernel mainline code, looks
currently there's no consumer actually using it? Would you let me know
who is the consumer if there's any?
Thanks,
-Kai
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Il 20/03/2014 23:29, H. Peter Anvin ha scritto:
> No! Please do what I asked you to do. You are not handling Hyper-V or
> VMWare. Just use X86_FEATURE_HYPERVISOR and it will cover all
> hypervisors that actually follow Intel's guidelines.
And for those that don't, we should turn on X86_FEATUR
Il 20/03/2014 10:57, James Hogan ha scritto:
> On 19/03/14 16:29, Paolo Bonzini wrote:
>> Il 14/03/2014 13:47, James Hogan ha scritto:
>>> From: Sanjay Lal
>>>
>>> Compare/Count timer interrupts are handled in-kernel for KVM, so don't
>>> bother starting it in QEMU.
>>>
>>> Signed-off-by: Sanjay L
On 03/20/2014 03:01 PM, Paolo Bonzini wrote:
>
> No! Please do what I asked you to do. You are not handling Hyper-V or
> VMWare. Just use X86_FEATURE_HYPERVISOR and it will cover all
> hypervisors that actually follow Intel's guidelines.
>
And for those that don't, we should turn on X86_FEATU
On 03/20/2014 05:02 PM, Zoltan Kiss wrote:
--- a/net/openvswitch/datapath.c
+++ b/net/openvswitch/datapath.c
@@ -464,7 +464,9 @@ static int queue_userspace_packet(struct datapath *dp,
struct sk_buff *skb,
}
nla->nla_len = nla_attr_size(skb->len);
- skb_zerocopy(user_skb, s
Il 20/03/2014 21:24, Alex Williamson ha scritto:
>
> +void kvm_ioapic_inject_all(struct kvm_ioapic *ioapic, unsigned long irr)
> +{
nit, kvm_ioapic_state.irr is a u32
Yes, but for_each_set_bit requires unsigned long.
> + u32 idx;
> +
> + rtc_irq_eoi_tracking_reset(ioapic);
> + for_each_se
Il 20/03/2014 21:25, Alex Williamson ha scritto:
I might choose to keep the "irq_level" variable name in the new
functions since dealing with both "edge" and "level" variables is a bit
confusing.
Good point. Will rename for v2.
Paolo
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Il 19/03/2014 21:14, Waiman Long ha scritto:
This patch adds the necessary KVM specific code to allow KVM to support
the sleeping and CPU kicking operations needed by the queue spinlock PV
code.
The remaining problem of this patch is that you cannot get the
generically optimal configuration: q
Il 19/03/2014 21:14, Waiman Long ha scritto:
This patch adds a KVM init function to activate the unfair queue
spinlock in a KVM guest when the PARAVIRT_UNFAIR_LOCKS kernel config
option is selected.
Signed-off-by: Waiman Long
---
arch/x86/kernel/kvm.c | 17 +
1 files changed,
Il 20/03/2014 22:30, Stefan Weil ha scritto:
Signed-off-by: Stefan Weil
---
This patch is based on a previous patch for the same file,
see http://patchwork.ozlabs.org/patch/330708/.
Regards
Stefan W.
target-i386/kvm.c |3 +--
1 file changed, 1 insertion(+), 2 deletions(-)
diff --git a/t
Signed-off-by: Stefan Weil
---
This patch is based on a previous patch for the same file,
see http://patchwork.ozlabs.org/patch/330708/.
Regards
Stefan W.
target-i386/kvm.c |3 +--
1 file changed, 1 insertion(+), 2 deletions(-)
diff --git a/target-i386/kvm.c b/target-i386/kvm.c
index 4389
From: Zoltan Kiss
Date: Thu, 20 Mar 2014 16:02:34 +
> skb_zerocopy can copy elements of the frags array between skbs, but it doesn't
> orphan them. Also, it doesn't handle errors, so this patch takes care of that
> as well, and modify the callers accordingly. skb_tx_error() is also added to
>
Paolo Bonzini writes:
> Il 20/03/2014 04:28, Bandan Das ha scritto:
>> Some L1 hypervisors such as Xen seem to be calling invept after
>> vmclear or before vmptrld on L2. In this case, proceed with
>> falling through and syncing roots as a case where
>> context wide invalidation can't be supporte
Jan Kiszka writes:
> On 2014-03-20 04:28, Bandan Das wrote:
>> Some L1 hypervisors such as Xen seem to be calling invept after
>> vmclear or before vmptrld on L2. In this case, proceed with
>> falling through and syncing roots as a case where
>> context wide invalidation can't be supported
>
> Ca
Jan Kiszka writes:
> Commit description is missing.
>
> On 2014-03-20 04:28, Bandan Das wrote:
>> Signed-off-by: Bandan Das
>> ---
>> arch/x86/kvm/irq.c | 1 +
>> arch/x86/kvm/vmx.c | 17 +
>> 2 files changed, 18 insertions(+)
>>
>> diff --git a/arch/x86/kvm/irq.c b/arch/x86/k
Jan Kiszka writes:
> On 2014-03-20 04:28, Bandan Das wrote:
>> Some Type 1 hypervisors such as XEN won't enable VMX without it present
>>
>> Signed-off-by: Bandan Das
>> ---
>> arch/x86/kvm/vmx.c | 3 ++-
>> 1 file changed, 2 insertions(+), 1 deletion(-)
>>
>> diff --git a/arch/x86/kvm/vmx.c
On Tue, 2014-03-18 at 15:54 +0100, Paolo Bonzini wrote:
> This ensures that IRR bits are set in the KVM_GET_IRQCHIP result only if
> the interrupt is still sitting in the IOAPIC. After the next patches, it
> avoids spurious reinjection of the interrupt when KVM_SET_IRQCHIP is
> called.
>
> Signed
On Tue, 2014-03-18 at 15:54 +0100, Paolo Bonzini wrote:
> After the previous patches, an interrupt whose bit is set in the IRR
> register will never be in the LAPIC's IRR and has never been injected
> on the migration source. So inject it on the destination.
>
> This fixes migration of Windows gu
On Tue, 2014-03-18 at 15:54 +0100, Paolo Bonzini wrote:
> We will reuse it to process a nonzero IRR that is passed to KVM_SET_IRQCHIP.
>
> Signed-off-by: Paolo Bonzini
> ---
> virt/kvm/ioapic.c | 63
> ++-
> 1 file changed, 39 insertions(+), 2
On Tue, 2014-03-18 at 15:54 +0100, Paolo Bonzini wrote:
> Commonize the handling of masking, which was absent for kvm_ioapic_set_irq.
> Setting remote_irr does not need a separate function either, and merging
> the two functions avoids confusion.
>
> Signed-off-by: Paolo Bonzini
> ---
> virt/kvm
- Resending to kvm@, as the previous attempt bounced off.
Andrea, Paolo,
Thanks a lot for the comments.
I like the idea of userfaultfd a lot. For my prototype I had to solve
a problem of accessing to the ondemand page from the paths where
exiting is not safe (emulator is one example). I have s
Hi,
On Thu, Mar 20, 2014 at 02:18:50PM +0100, Paolo Bonzini wrote:
> Il 20/03/2014 00:27, Grigory Makarevich ha scritto:
> > Hi All,
> >
> > I have been exploring different ways to implement on-demand paging for
> > VMs running in KVM.
> >
> > The core of the idea is to introduce an additional exi
Good news! The deadline for Outreach Program for Women applications
to work on QEMU, KVM, or libvirt for 12 weeks this summer has been
extended to March 31st 19:00 UTC:
https://wiki.gnome.org/OutreachProgramForWomen/2014/MayAugust#Participating_Organizations
Outreach Program for Women was started
skb_zerocopy can copy elements of the frags array between skbs, but it doesn't
orphan them. Also, it doesn't handle errors, so this patch takes care of that
as well, and modify the callers accordingly. skb_tx_error() is also added to
the callers so they will signal the failed delivery towards the c
On 20/03/14 12:33, Thomas Graf wrote:
On 03/20/2014 01:16 PM, Thomas Graf wrote:
On 03/19/2014 10:07 PM, Zoltan Kiss wrote:
skb_zerocopy can copy elements of the frags array between skbs, but it
doesn't
orphan them. Also, it doesn't handle errors, so this patch takes care
of that
as well.
Sign
Il 20/03/2014 00:27, Grigory Makarevich ha scritto:
Hi All,
I have been exploring different ways to implement on-demand paging for
VMs running in KVM.
The core of the idea is to introduce an additional exit
KVM_EXIT_MEMORY_NOT_PRESENT to inform VMM's user space to process
access to "not yet pr
On 03/19/2014 10:07 PM, Zoltan Kiss wrote:
skb_zerocopy can copy elements of the frags array between skbs, but it doesn't
orphan them. Also, it doesn't handle errors, so this patch takes care of that
as well.
Signed-off-by: Zoltan Kiss
Acked-by: Thomas Graf
---
+ if (unlikely(skb_orp
Il 20/03/2014 11:00, James Hogan ha scritto:
> Just a few comments. With what version of the kernel can this be tested?
KVM support was added in v3.10, including defconfigs and a
CONFIG_KVM_GUEST to ensure the kernel is linked to the different address.
Yes, but you still need support for CP0_
Il 20/03/2014 04:28, Bandan Das ha scritto:
Some L1 hypervisors such as Xen seem to be calling invept after
vmclear or before vmptrld on L2. In this case, proceed with
falling through and syncing roots as a case where
context wide invalidation can't be supported
Signed-off-by: Bandan Das
---
a
On 03/20/2014 01:16 PM, Thomas Graf wrote:
On 03/19/2014 10:07 PM, Zoltan Kiss wrote:
skb_zerocopy can copy elements of the frags array between skbs, but it
doesn't
orphan them. Also, it doesn't handle errors, so this patch takes care
of that
as well.
Signed-off-by: Zoltan Kiss
Acked-by: Tho
On 19/03/14 16:29, Paolo Bonzini wrote:
> Il 14/03/2014 13:47, James Hogan ha scritto:
>> From: Sanjay Lal
>>
>> Compare/Count timer interrupts are handled in-kernel for KVM, so don't
>> bother starting it in QEMU.
>>
>> Signed-off-by: Sanjay Lal
>> Signed-off-by: James Hogan
>> Reviewed-by: Aur
On 19/03/14 16:39, Paolo Bonzini wrote:
> Il 14/03/2014 13:47, James Hogan ha scritto:
>> This patchset is based on Sanjay Lal's V1 patchset from 2nd March 2013:
>> https://patchwork.kernel.org/project/kvm/list/?submitter=51991&state=*&q=qemu-devel
>>
>>
>> I think I've addressed all the V1 feedbac
On 19/03/14 16:39, Paolo Bonzini wrote:
> Il 14/03/2014 13:47, James Hogan ha scritto:
>> int prom_index = 0;
>> +uint64_t (*xlate_to_phys) (void *opaque, uint64_t addr);
>> +uint64_t (*xlate_to_kseg0) (void *opaque, uint64_t addr);
>> +
>>
>> #ifdef TARGET_WORDS_BIGENDIAN
>> big
On 19/03/14 16:33, Paolo Bonzini wrote:
> Il 14/03/2014 13:47, James Hogan ha scritto:
>> +if (kvm_enabled()) {
>> +/* KVM T&E adds guest kernel segments in useg */
>> +if (real_address >= KVM_KSEG0_BASE) {
>> +if (real_address < KVM_KSEG2_BASE) {
>> +
On 2014-03-20 04:28, Bandan Das wrote:
> Some L1 hypervisors such as Xen seem to be calling invept after
> vmclear or before vmptrld on L2. In this case, proceed with
> falling through and syncing roots as a case where
> context wide invalidation can't be supported
Can we also base this behaviour
Commit description is missing.
On 2014-03-20 04:28, Bandan Das wrote:
> Signed-off-by: Bandan Das
> ---
> arch/x86/kvm/irq.c | 1 +
> arch/x86/kvm/vmx.c | 17 +
> 2 files changed, 18 insertions(+)
>
> diff --git a/arch/x86/kvm/irq.c b/arch/x86/kvm/irq.c
> index 484bc87..bd0da43
On 2014-03-20 04:28, Bandan Das wrote:
> Some Type 1 hypervisors such as XEN won't enable VMX without it present
>
> Signed-off-by: Bandan Das
> ---
> arch/x86/kvm/vmx.c | 3 ++-
> 1 file changed, 2 insertions(+), 1 deletion(-)
>
> diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c
> index 39
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