On Fri, Jun 11, 2021 at 10:18 AM Paolo Bonzini wrote:
>
> On 11/06/21 17:00, Jing Zhang wrote:
> > To avoid duplication, remove the debugfs interface for KVM stats,
> > since the fd-based binary stats interface is available.
>
> That would be too easy. :) We need to keep the debugfs code because
Hi Paolo,
On Fri, Jun 11, 2021 at 10:00 AM Jing Zhang wrote:
>
> To avoid duplication, remove the debugfs interface for KVM stats,
> since the fd-based binary stats interface is available.
>
> Signed-off-by: Jing Zhang
> ---
> arch/arm64/kvm/guest.c| 16 ---
> arch/mips/kvm/mips.c |
To avoid duplication, remove the debugfs interface for KVM stats,
since the fd-based binary stats interface is available.
Signed-off-by: Jing Zhang
---
arch/arm64/kvm/guest.c| 16 ---
arch/mips/kvm/mips.c | 39 --
arch/powerpc/kvm/book3s.c | 33 -
arch/powerpc/kvm/booke.c |
Hi Paolo,
On Fri, Jun 11, 2021 at 8:35 AM Paolo Bonzini wrote:
>
> On 11/06/21 14:46, Jing Zhang wrote:
> > This patchset provides a file descriptor for every VM and VCPU to read
> > KVM statistics data in binary format.
> > It is meant to provide a lightweight, flexible, scalable and efficient
Hi Marc,
On 6/11/21 5:38 PM, Alexandru Elisei wrote:
> Hi Marc,
>
> On 6/1/21 11:39 AM, Marc Zyngier wrote:
>> As it turns out, not all the interrupt controllers are able to
>> expose a vGIC maintenance interrupt that can be independently
>> enabled/disabled.
>>
>> And to be fair, it doesn't
Update KVM API documentation for binary statistics.
Reviewed-by: David Matlack
Reviewed-by: Ricardo Koller
Reviewed-by: Krish Sadhukhan
Signed-off-by: Jing Zhang
---
Documentation/virt/kvm/api.rst | 174 -
1 file changed, 173 insertions(+), 1 deletion(-)
diff
Provides a file descriptor per VM to read VM stats info/data.
Provides a file descriptor per vCPU to read vCPU stats info/data.
Reviewed-by: David Matlack
Reviewed-by: Ricardo Koller
Reviewed-by: Krish Sadhukhan
Signed-off-by: Jing Zhang
---
arch/arm64/kvm/guest.c| 34 +
Put all generic statistics in a separate structure to ease
statistics handling for the incoming new statistics API.
No functional change intended.
Reviewed-by: David Matlack
Reviewed-by: Ricardo Koller
Reviewed-by: Krish Sadhukhan
Signed-off-by: Jing Zhang
---
Add selftest to check KVM stats descriptors validity.
Reviewed-by: David Matlack
Reviewed-by: Ricardo Koller
Reviewed-by: Krish Sadhukhan
Signed-off-by: Jing Zhang
---
tools/testing/selftests/kvm/.gitignore| 1 +
tools/testing/selftests/kvm/Makefile | 3 +
This patchset provides a file descriptor for every VM and VCPU to read
KVM statistics data in binary format.
It is meant to provide a lightweight, flexible, scalable and efficient
lock-free solution for user space telemetry applications to pull the
statistics data periodically for large scale
Hi Marc,
On 6/1/21 11:39 AM, Marc Zyngier wrote:
> As it turns out, not all the interrupt controllers are able to
> expose a vGIC maintenance interrupt that can be independently
> enabled/disabled.
>
> And to be fair, it doesn't really matter as all we require is
> for the interrupt to kick us
kvmtool commit 45b4968e0de1 ("hw/serial: ARM/arm64: Use MMIO at higher
addresses") changed the UART address from 0x3f8 to 0x100. Update the
UART early address accordingly when kvm-unit-tests is configured with
--target=kvmtool.
Users of older kvmtool versions can still enjoy having a working
On 11/06/21 17:00, Jing Zhang wrote:
To avoid duplication, remove the debugfs interface for KVM stats,
since the fd-based binary stats interface is available.
That would be too easy. :) We need to keep the debugfs code because it
is not yet a 100% replacement for binary stats (it allows to
On 11/06/21 14:46, Jing Zhang wrote:
This patchset provides a file descriptor for every VM and VCPU to read
KVM statistics data in binary format.
It is meant to provide a lightweight, flexible, scalable and efficient
lock-free solution for user space telemetry applications to pull the
statistics
Hi Will,
On 6/8/21 1:08 PM, Will Deacon wrote:
> Hi Sean,
>
> Thanks for having a look.
>
> On Thu, Jun 03, 2021 at 08:15:55PM +, Sean Christopherson wrote:
>> On Thu, Jun 03, 2021, Will Deacon wrote:
>>> [..]
>>
>>> diff --git a/include/uapi/linux/kvm.h b/include/uapi/linux/kvm.h
>>> index
On 2021-06-11 02:10, Ricardo Koller wrote:
Hi,
These patches add a debug exception test in aarch64 KVM selftests while
also adding basic exception handling support.
The structure of the exception handling is based on its x86
counterpart.
Tests use the same calls to initialize exception
Hi,
On 6/8/21 3:11 PM, Fuad Tabba wrote:
> Hi,
>
> This patch series adds support for restricting CPU features for protected VMs
> in KVM [1].
>
> Various feature configurations are allowed in KVM/arm64. Supporting all
> these features in pKVM is difficult, as it either involves moving much of
>
On Tue, 8 Jun 2021 11:45:11 +, Quentin Perret wrote:
> This is a v3 of the patch series previously posted here:
>
> https://lore.kernel.org/r/20210602094347.3730846-1-qper...@google.com
>
> Please refer to the cover letter of v1 for the context and motivation
> behind the series.
>
>
On 11/06/21 14:08, Christian Borntraeger wrote:
I always interpreted it as "number of times the KVM page table
management code needed other CPUs to learn about new page tables".
Whether the broadcast is done in software or hardware shouldn't
matter; either way I suppose there is still some
On 11.06.21 14:03, Paolo Bonzini wrote:
On 11/06/21 14:00, Christian Borntraeger wrote:
What is the semantics of remote_tlb_flush?
I always interpreted it as "number of times the KVM page table management code
needed other CPUs to learn about new page tables". Whether the broadcast is
On 11/06/21 14:00, Christian Borntraeger wrote:
What is the semantics of remote_tlb_flush?
I always interpreted it as "number of times the KVM page table
management code needed other CPUs to learn about new page tables".
Whether the broadcast is done in software or hardware shouldn't matter;
On 11.06.21 12:51, Paolo Bonzini wrote:
On 11/06/21 08:57, Christian Borntraeger wrote:
@@ -755,12 +750,12 @@ struct kvm_vcpu_arch {
};
struct kvm_vm_stat {
+ struct kvm_vm_stat_generic generic;
s390 does not have remote_tlb_flush. I guess this does not hurt?
It would have to be
On 11/06/21 08:57, Christian Borntraeger wrote:
On 03.06.21 23:14, Jing Zhang wrote:
This patchset provides a file descriptor for every VM and VCPU to read
KVM statistics data in binary format.
It is meant to provide a lightweight, flexible, scalable and efficient
lock-free solution for user
On 03.06.21 23:14, Jing Zhang wrote:
This patchset provides a file descriptor for every VM and VCPU to read
KVM statistics data in binary format.
It is meant to provide a lightweight, flexible, scalable and efficient
lock-free solution for user space telemetry applications to pull the
On 03.06.21 23:14, Jing Zhang wrote:
Put all generic statistics in a separate structure to ease
statistics handling for the incoming new statistics API.
No functional change intended.
Reviewed-by: David Matlack
Reviewed-by: Ricardo Koller
Signed-off-by: Jing Zhang
[...]
diff --git
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