Hi All,
Is direct device assignment in nested VM supported in the latest KVM
mainline now?
Thanks,
Yaohui
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Hi,
I have one question related to nested EPT page fault.
At the very start, L0 hypervisor launches L2 with an empty EPT0->2
table, building the table on-the-fly.
when one L2 physical page is accessed, ept_page_fault(paging_tmpl.h)
will be called to handle this fault in L0. which will first call
ep
Hi Abel,
Thanks a lot! It works now.
Best Wishes,
Yaohui
On Sun, May 4, 2014 at 10:57 AM, Abel Gordon wrote:
> On Fri, May 2, 2014 at 11:11 PM, Hu Yaohui wrote:
>>
>> On Fri, May 2, 2014 at 2:39 PM, Bandan Das wrote:
>> > Hu Yaohui writes:
>> >
>> &g
On Fri, May 2, 2014 at 2:39 PM, Bandan Das wrote:
> Hu Yaohui writes:
>
>> On Fri, May 2, 2014 at 11:52 AM, Paolo Bonzini wrote:
>>> Il 02/05/2014 17:17, Hu Yaohui ha scritto:
>>>
>>>> Hi Paolo,
>>>> I have tried L0 with linux kernel 3.
On Fri, May 2, 2014 at 11:52 AM, Paolo Bonzini wrote:
> Il 02/05/2014 17:17, Hu Yaohui ha scritto:
>
>> Hi Paolo,
>> I have tried L0 with linux kernel 3.14.2 and L1 with linux kernel 3.14.2
>> L1 QEMU qemu-1.7.0
>> L2 QEMU qemu-1.7.0.
>
>
> Do you mea
for mmio generation wraparound
May 2 11:12:32 o46 kernel: [38100.616392] nested_vmx_exit_handled
failed vm entry 7
Thanks,
Yaohui
On Fri, May 2, 2014 at 5:53 AM, Paolo Bonzini wrote:
> Il 02/05/2014 03:43, Hu Yaohui ha scritto:
>
>> Hi all,
>> I have a problem running the lat
Hi all,
I have a problem running the latest version of kvm with nested configuration.
I used to run it with kernel 3.2.2 both for L0 and L1, which works perfectly.
When I change my L0 to kernel 3.10.36, L1 to kernel 3.12.10.
When I start L2 guest in L1 with qemu-kvm. I get the following error
from
,
when the entry in the page table is modified. there is no page fault
will happen, how can the mmu_need_write_protect to be called to make
whether sync or unsync decision?
Thanks for your time!
Best Wishes,
Yaohui
On Wed, Mar 26, 2014 at 1:07 AM, Xiao Guangrong
wrote:
> On 03/26/2014 12:40 PM,
if someone could shed me some lights on it.
Thanks for your time!
Best Wishes,
Yaohui
On Tue, Mar 25, 2014 at 12:25 PM, Hu Yaohui wrote:
> Hi Guangrong,
> Since you have written in the kvm/mmu.txt.
>
>
> unsync:
> If true, then the translations in this page may not match the g
Hi Guangrong,
Since you have written in the kvm/mmu.txt.
unsync:
If true, then the translations in this page may not match the guest's
translation. This is equivalent to the state of the tlb when a pte is
changed but before the tlb entry is flushed. Accordingly, unsync ptes
ar
Hi All,
I read the code in do_anonymous_page of the latest linux kernel.
I am pretty confused how pte_mkspecial to make the zero-page COW on
x86 architecture
static int do_anonymous_page(struct mm_struct *mm, struct vm_area_struct *vma,
unsigned long address, pte_t *page_table, pmd
Hi All,
If the host system decides that it wants to push a given page out to
swap, the host will notify the host through registered mmu notifier to
inform the guest. I am wondering if there any other situations, other
than swapping, which will trigger the mmu notifier to inform host page
change to
Thank you Marcelo!
I really appreciate your explanation.
On Sat, Jan 11, 2014 at 7:27 AM, Marcelo Tosatti wrote:
> On Thu, Jan 09, 2014 at 03:08:25PM -0500, Hu Yaohui wrote:
>> Hi Marcelo,
>> Thanks for your replying!
>> I hope you have a good day! I am sorry that it's
ource
codes.
Thanks for your time!
Best Wishes,
Yaohui Hu
On Thu, Jan 9, 2014 at 1:47 PM, Marcelo Tosatti wrote:
> On Thu, Jan 09, 2014 at 11:28:40AM -0500, Hu Yaohui wrote:
>> Hi Macelo,
>> I am sorry to bother you again. In your first possibility,
>> kvm_vcpu_kick sends
Thanks a lot Marcelo!
On Thu, Jan 9, 2014 at 1:46 PM, Marcelo Tosatti wrote:
> On Wed, Jan 08, 2014 at 06:35:00PM -0500, Hu Yaohui wrote:
>> Thanks a lot Marcelo!
>>
>> On Wed, Jan 8, 2014 at 6:25 PM, Marcelo Tosatti wrote:
>> > On Wed, Jan 08, 2014 at 06:
Hi all.
If the hardware does not support APIC virtualization: kvm_vcpu_kick sends an
host-IPI to the remote vcpu if that vcpu is in guest mode, a VM-exit
(exit reason: external interrupt) will be triggered due to the host-IPI.
Then on VM-entry (inject_pending_event) the guest-IPI is injected. If
th
, what will
happen? Thanks for your time!
Best Wishes,
Yaohui Hu
On Wed, Jan 8, 2014 at 6:35 PM, Hu Yaohui wrote:
> Thanks a lot Marcelo!
>
> On Wed, Jan 8, 2014 at 6:25 PM, Marcelo Tosatti wrote:
>> On Wed, Jan 08, 2014 at 06:14:15PM -0500, Hu Yaohui wrote:
>>> Hi guys,
&
Thanks a lot Marcelo!
On Wed, Jan 8, 2014 at 6:25 PM, Marcelo Tosatti wrote:
> On Wed, Jan 08, 2014 at 06:14:15PM -0500, Hu Yaohui wrote:
>> Hi guys,
>> I think you should be pretty familiar with lapic. I would really
>> appreciate it if someone could shed some lights on my
Hi guys,
I think you should be pretty familiar with lapic. I would really
appreciate it if someone could shed some lights on my problem
regarding Guest TLB flush IPI.
Supposed we get two vcpus 0 and 1.
When vcpu#0 wants to invalidate the tlb entry on vcpu#1. An IPI will
be generated by lapic on vcp
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