On Thu, 2013-07-04 at 06:47 +, Caraman Mihai Claudiu-B02008 wrote:
> This is a solid reason. Ben it's ok for you to apply the combined
> patch? If so I will respin it.
Sure, but nowadays, all that stuff goes via Scott and Alex.
Cheers,
Ben.
--
To unsubscribe from this list: send the line "u
Il 03/07/2013 18:33, Cornelia Huck ha scritto:
> On Wed, 03 Jul 2013 17:30:40 +0200
> Paolo Bonzini wrote:
>
>> Il 03/07/2013 16:30, Cornelia Huck ha scritto:
>>> + /*
>>> +* Return cookie in gpr 2, but don't overwrite the register if the
>>> +* diagnose will be handled by userspace.
>>
> -Original Message-
> From: kvm-ppc-ow...@vger.kernel.org [mailto:kvm-ppc-
> ow...@vger.kernel.org] On Behalf Of Alexander Graf
> Sent: Wednesday, July 03, 2013 9:40 PM
> To: Wood Scott-B07421
> Cc: Caraman Mihai Claudiu-B02008; kvm-...@vger.kernel.org;
> kvm@vger.kernel.org; linuxppc-..
> -Original Message-
> From: Wood Scott-B07421
> Sent: Wednesday, July 03, 2013 11:17 PM
> To: Caraman Mihai Claudiu-B02008
> Cc: linuxppc-...@lists.ozlabs.org; kvm-...@vger.kernel.org;
> kvm@vger.kernel.org; Caraman Mihai Claudiu-B02008
> Subject: Re: [PATCH 2/2] KVM: PPC: Book3E: Add LRAT
> -Original Message-
> From: Wood Scott-B07421
> Sent: Wednesday, July 03, 2013 11:18 PM
> To: Caraman Mihai Claudiu-B02008
> Cc: linuxppc-...@lists.ozlabs.org; kvm-...@vger.kernel.org;
> kvm@vger.kernel.org; Caraman Mihai Claudiu-B02008
> Subject: Re: [PATCH 1/2] powerpc/booke64: Add LRAT
On Thu, Jul 04, 2013 at 12:09:32AM +0800, Arthur Chunqi Li wrote:
> Before moving the 3 functions ahead, they will be declared twice in
> the same file before handle_vmon(). I don't know if this small change
> can be committed together in one patch. If this change is needless or
> should be committ
On 2013-07-03 18:05, Arthur Chunqi Li wrote:
> Set success rflags after emulating VMXON/VMXOFF in nested environment.
>
> Re-arrange the code sequence of 3 functions,
> nested_vmx_succeed()/failValid()/failInvalid(), to avoid double
> declaration in the same file.
Just don't forget to provide cor
Now that kvm_arch_memslots_updated() catches every increment of the
memslots->generation, checking if the mmio generation has reached its
maximum value is enough.
Signed-off-by: Takuya Yoshikawa
---
arch/x86/kvm/mmu.c |5 +
arch/x86/kvm/x86.c | 10 +-
2 files changed, 6 inserti
This is called right after the memslots is updated, i.e. when the result
of update_memslots() gets installed in install_new_memslots(). Since
the memslots needs to be updated twice when we delete or move a memslot,
kvm_arch_commit_memory_region() does not correspond to this exactly.
In the follow
Patch 1: KVM-arch maintainers, please review this one.
{x86, power, s390, arm}-kvm maintainers CCed.
Could not find mips-kvm maintainer in MAINTAINERS.
Patch 2: I did not move the body of kvm_mmu_invalidate_mmio_sptes() into
x86.c because it looked like mmu details.
Takuya Yoshikawa (2):
On Wed, Jul 03, 2013 at 12:44:01PM -0400, Don Zickus wrote:
> > And why overcommitment is not a valid reason to generate a softlockup in
> > the first place ?
>
> For the guest I don't believe it is. It isn't the guest's fault it
> couldn't run processes. A warning should be scheduled on the hos
On Wed, Jul 03, 2013 at 12:44:01PM -0400, Don Zickus wrote:
> On Fri, Jun 28, 2013 at 05:37:39PM -0300, Marcelo Tosatti wrote:
> > On Fri, Jun 28, 2013 at 10:12:15AM -0400, Don Zickus wrote:
> > > On Thu, Jun 27, 2013 at 11:57:23PM -0300, Marcelo Tosatti wrote:
> > > >
> > > > One possibility for
On 07/03/2013 05:53:09 PM, Alex Williamson wrote:
Seems like it should work. My only API concern with this model of
appending structs is that a user needs to know the size of each struct
even if they don't otherwise care about it in order to step over it.
In that case, it might be better to ma
On Wed, 2013-07-03 at 21:40 +, Yoder Stuart-B08248 wrote:
> Version 2
> -VFIO_GROUP_GET_DEVICE_FD-- specified that the path is a sysfs path
> -VFIO_DEVICE_GET_INFO-- defined 2 flags instead of 1
> -deleted VFIO_DEVICE_GET_DEVTREE_INFO ioctl
> -VFIO_DEVICE_GET_REGION_INFO-- updated as pe
On 07/02/2013 06:25:59 PM, Yoder Stuart-B08248 wrote:
The write-up below is the first draft of a proposal for how the
kernel can expose
platform devices to user space using vfio.
In short, I'm proposing a new ioctl VFIO_DEVICE_GET_DEVTREE_INFO which
allows user space to correlate regions and i
On 07/03/2013 04:42:40 PM, Alexander Graf wrote:
On 03.07.2013, at 22:16, Scott Wood wrote:
> On 07/03/2013 11:56:06 AM, Mihai Caraman wrote:
>> With LRAT (Logical to Real Address Translation) error exception
handler in kernel
>> KVM needs to add the counterpart otherwise will break the buil
On 03.07.2013, at 22:16, Scott Wood wrote:
> On 07/03/2013 11:56:06 AM, Mihai Caraman wrote:
>> With LRAT (Logical to Real Address Translation) error exception handler in
>> kernel
>> KVM needs to add the counterpart otherwise will break the build.
>> Signed-off-by: Mihai Caraman
>> ---
>> arch
On 03.07.2013, at 22:16, Yoder Stuart-B08248 wrote:
>
>
>> -Original Message-
>> From: Alexander Graf [mailto:ag...@suse.de]
>> Sent: Wednesday, July 03, 2013 2:32 PM
>> To: Yoder Stuart-B08248
>> Cc: Bhushan Bharat-R65777; Wood Scott-B07421; kvm@vger.kernel.org list;
>> kvm-...@vger.k
Version 2
-VFIO_GROUP_GET_DEVICE_FD-- specified that the path is a sysfs path
-VFIO_DEVICE_GET_INFO-- defined 2 flags instead of 1
-deleted VFIO_DEVICE_GET_DEVTREE_INFO ioctl
-VFIO_DEVICE_GET_REGION_INFO-- updated as per AlexW's suggestion,
defined 5 new flags and associated structs
-V
On 07/03/2013 11:56:05 AM, Mihai Caraman wrote:
@@ -1410,6 +1423,7 @@ _GLOBAL(setup_doorbell_ivors)
_GLOBAL(setup_ehv_ivors)
SET_IVOR(40, 0x300) /* Embedded Hypervisor System Call */
SET_IVOR(41, 0x320) /* Embedded Hypervisor Privilege */
+ SET_IVOR(42, 0x340) /* LRAT Error
> -Original Message-
> From: Alexander Graf [mailto:ag...@suse.de]
> Sent: Wednesday, July 03, 2013 2:32 PM
> To: Yoder Stuart-B08248
> Cc: Bhushan Bharat-R65777; Wood Scott-B07421; kvm@vger.kernel.org list;
> kvm-...@vger.kernel.org
> Subject: Re: PPC: RFC: proposal for VM reset & shutd
On 07/03/2013 11:56:06 AM, Mihai Caraman wrote:
With LRAT (Logical to Real Address Translation) error exception
handler in kernel
KVM needs to add the counterpart otherwise will break the build.
Signed-off-by: Mihai Caraman
---
arch/powerpc/kvm/bookehv_interrupts.S |2 ++
1 files changed
On 07/03/2013 02:32:07 PM, Alexander Graf wrote:
On 03.07.2013, at 21:29, Yoder Stuart-B08248 wrote:
> Version 4 changes
> -clarified that KVM zeros the upper half of the struct fields
>if the VM is not in 64-bit mode
>
>
-
On 03.07.2013, at 21:29, Yoder Stuart-B08248 wrote:
> Version 4 changes
> -clarified that KVM zeros the upper half of the struct fields
>if the VM is not in 64-bit mode
>
>
> KVM_CAP_EXIT_EPAPR_HCALL Capability
>
>
Version 4 changes
-clarified that KVM zeros the upper half of the struct fields
if the VM is not in 64-bit mode
KVM_CAP_EXIT_EPAPR_HCALL Capability
A new capability KVM_CAP_EXIT_EPAPR_HCALL is defined to advertise
th
[cut]
> > So overall the interface and extension makes sense. My only question is
> > whether it's better to get complete reuse out of GET_REGION_INFO and
> > GET_IRQ_INFO and then add another device tree specific ioctl or is it
> > better to add a device tree index and path to the existing GET_*_
> -Original Message-
> From: Wood Scott-B07421
> Sent: Wednesday, July 03, 2013 1:52 PM
> To: Alexander Graf
> Cc: Yoder Stuart-B08248; Alex Williamson; Wood Scott-B07421; Bhushan
> Bharat-R65777; Sethi Varun-B16395;
> virtualizat...@lists.linux-foundation.org; Antonios Motakis;
> kvm@v
On 07/02/2013 08:07:53 PM, Alexander Graf wrote:
On 03.07.2013, at 01:25, Yoder Stuart-B08248 wrote:
> 8. Open Issues
>
> -how to handle cases where VFIO is requested to handle
>a device where the valid, mappable range for a region
>is less than a page size. See example above where
On 07/03/2013 01:42:12 PM, Alexander Graf wrote:
On 03.07.2013, at 20:28, Scott Wood wrote:
> On 07/03/2013 10:13:57 AM, Alexander Graf wrote:
>> There is no chip that supports SPE and HV at the same time. So
we'll never hit this anyway, since kvmppc_supports_spe() always
returns false on H
On 03.07.2013, at 20:36, Scott Wood wrote:
> On 07/03/2013 12:07:30 PM, Alexander Graf wrote:
>> On 03.07.2013, at 18:49, Caraman Mihai Claudiu-B02008 wrote:
>> Do we need to do this even when the guest doesn't use Altivec? Can't
>> >> we
>> just load it on demand then once we fault? Th
On 03.07.2013, at 20:28, Scott Wood wrote:
> On 07/03/2013 10:13:57 AM, Alexander Graf wrote:
>> On 03.07.2013, at 15:53, Caraman Mihai Claudiu-B02008 wrote:
>> >>> -#ifdef CONFIG_SPE
>> >>> case BOOKE_INTERRUPT_SPE_ALTIVEC_UNAVAIL: {
>> >>> -if (vcpu->arch.shared->msr & MSR_SPE)
On 03.07.2013, at 20:37, Scott Wood wrote:
> On 07/03/2013 07:42:36 AM, Mihai Caraman wrote:
>> Increase FPU laziness by calling kvmppc_load_guest_fp() just before
>> returning to guest instead of each sched in. Without this improvement
>> an interrupt may also claim floting point corrupting gues
On 03.07.2013, at 19:44, Scott Wood wrote:
> On 07/03/2013 12:23:16 PM, Alexander Graf wrote:
>> On 03.07.2013, at 19:18, Scott Wood wrote:
>> > On 07/03/2013 07:42:36 AM, Mihai Caraman wrote:
>> >> Increase FPU laziness by calling kvmppc_load_guest_fp() just before
>> >> returning to guest inste
On 07/03/2013 07:42:37 AM, Mihai Caraman wrote:
Add KVM Book3E AltiVec support. KVM Book3E FPU support gracefully
reuse host
infrastructure so follow the same approach for AltiVec.
Signed-off-by: Mihai Caraman
---
arch/powerpc/kvm/booke.c | 72
On 07/03/2013 07:42:36 AM, Mihai Caraman wrote:
Increase FPU laziness by calling kvmppc_load_guest_fp() just before
returning to guest instead of each sched in. Without this improvement
an interrupt may also claim floting point corrupting guest state.
Signed-off-by: Mihai Caraman
---
arch/powe
On 07/03/2013 12:07:30 PM, Alexander Graf wrote:
On 03.07.2013, at 18:49, Caraman Mihai Claudiu-B02008 wrote:
Do we need to do this even when the guest doesn't use Altivec?
Can't
>> we
just load it on demand then once we fault? This code path really
>> should
only be a prefetc
On 07/03/2013 07:11:52 AM, Caraman Mihai Claudiu-B02008 wrote:
> -Original Message-
> From: Wood Scott-B07421
> Sent: Wednesday, June 05, 2013 1:40 AM
> To: Caraman Mihai Claudiu-B02008
> Cc: kvm-...@vger.kernel.org; kvm@vger.kernel.org; linuxppc-
> d...@lists.ozlabs.org; Caraman Mihai Cl
On 07/03/2013 10:13:57 AM, Alexander Graf wrote:
On 03.07.2013, at 15:53, Caraman Mihai Claudiu-B02008 wrote:
>>> -#ifdef CONFIG_SPE
>>>case BOOKE_INTERRUPT_SPE_ALTIVEC_UNAVAIL: {
>>> - if (vcpu->arch.shared->msr & MSR_SPE)
>>> - kvmppc_vcpu_enable_spe(vcpu);
>>>
On 07/03/2013 12:23:16 PM, Alexander Graf wrote:
On 03.07.2013, at 19:18, Scott Wood wrote:
> On 07/03/2013 07:42:36 AM, Mihai Caraman wrote:
>> Increase FPU laziness by calling kvmppc_load_guest_fp() just before
>> returning to guest instead of each sched in. Without this
improvement
>> an
On 03.07.2013, at 19:18, Scott Wood wrote:
> On 07/03/2013 07:42:36 AM, Mihai Caraman wrote:
>> Increase FPU laziness by calling kvmppc_load_guest_fp() just before
>> returning to guest instead of each sched in. Without this improvement
>> an interrupt may also claim floting point corrupting gues
On 03.07.2013, at 19:17, Scott Wood wrote:
> On 07/03/2013 11:59:45 AM, Alexander Graf wrote:
>> On 03.07.2013, at 17:41, Caraman Mihai Claudiu-B02008 wrote:
>> > Increase FPU laziness by calling kvmppc_load_guest_fp() just before
>> > returning to guest instead of each sched in. Without
[cut]
> So overall the interface and extension makes sense. My only question is
> whether it's better to get complete reuse out of GET_REGION_INFO and
> GET_IRQ_INFO and then add another device tree specific ioctl or is it
> better to add a device tree index and path to the existing GET_*_INFO
>
On 07/03/2013 07:42:36 AM, Mihai Caraman wrote:
Increase FPU laziness by calling kvmppc_load_guest_fp() just before
returning to guest instead of each sched in. Without this improvement
an interrupt may also claim floting point corrupting guest state.
Signed-off-by: Mihai Caraman
---
arch/powe
On 07/03/2013 11:59:45 AM, Alexander Graf wrote:
On 03.07.2013, at 17:41, Caraman Mihai Claudiu-B02008 wrote:
> Increase FPU laziness by calling kvmppc_load_guest_fp() just
before
> returning to guest instead of each sched in. Without this
improvement
> an interrupt may also cla
On 03.07.2013, at 19:07, Scott Wood wrote:
> On 07/03/2013 10:11:50 AM, Alexander Graf wrote:
>> On 03.07.2013, at 15:55, Caraman Mihai Claudiu-B02008 wrote:
>> >> -Original Message-
>> >> From: Alexander Graf [mailto:ag...@suse.de]
>> >> Sent: Wednesday, July 03, 2013 4:45 PM
>> >> To: C
On 07/03/2013 10:11:50 AM, Alexander Graf wrote:
On 03.07.2013, at 15:55, Caraman Mihai Claudiu-B02008 wrote:
>> -Original Message-
>> From: Alexander Graf [mailto:ag...@suse.de]
>> Sent: Wednesday, July 03, 2013 4:45 PM
>> To: Caraman Mihai Claudiu-B02008
>> Cc: kvm-...@vger.kernel.org
On 03.07.2013, at 18:49, Caraman Mihai Claudiu-B02008 wrote:
> +
> if (!vcpu->arch.sane) {
> kvm_run->exit_reason = KVM_EXIT_INTERNAL_ERROR;
> return -EINVAL;
> @@ -716,6 +750,22 @@ int kvmppc_vcpu_run(struct kvm_run *kvm_run,
struct kvm_vcpu *vcpu)
On 03.07.2013, at 17:41, Caraman Mihai Claudiu-B02008 wrote:
> Increase FPU laziness by calling kvmppc_load_guest_fp() just before
> returning to guest instead of each sched in. Without this improvement
> an interrupt may also claim floting point corrupting guest state.
Not
With LRAT (Logical to Real Address Translation) error exception handler in
kernel
KVM needs to add the counterpart otherwise will break the build.
Signed-off-by: Mihai Caraman
---
arch/powerpc/kvm/bookehv_interrupts.S |2 ++
1 files changed, 2 insertions(+), 0 deletions(-)
diff --git a/arc
Add LRAT (Logical to Real Address Translation) error exception handler to
Booke3E 64-bit kernel. LRAT support in KVM will follow afterwards.
Signed-off-by: Mihai Caraman
---
arch/powerpc/include/asm/kvm_asm.h |1 +
arch/powerpc/include/asm/reg_booke.h |1 +
arch/powerpc/kernel/exceptio
> >>> +
> >>> if (!vcpu->arch.sane) {
> >>> kvm_run->exit_reason = KVM_EXIT_INTERNAL_ERROR;
> >>> return -EINVAL;
> >>> @@ -716,6 +750,22 @@ int kvmppc_vcpu_run(struct kvm_run *kvm_run,
> >> struct kvm_vcpu *vcpu)
> >>> kvmppc_load_guest_fp(vcpu);
> >>> #endif
> >>>
> >>> +#
On Fri, Jun 28, 2013 at 05:37:39PM -0300, Marcelo Tosatti wrote:
> On Fri, Jun 28, 2013 at 10:12:15AM -0400, Don Zickus wrote:
> > On Thu, Jun 27, 2013 at 11:57:23PM -0300, Marcelo Tosatti wrote:
> > >
> > > One possibility for a softlockup report in a Linux VM, is that the host
> > > system is ov
On 03.07.2013, at 18:09, Caraman Mihai Claudiu-B02008 wrote:
>>> + * Simulate AltiVec unavailable fault to load guest state
>>> + * from thread to AltiVec unit.
>>> + * It requires to be called with preemption disabled.
>>> + */
>>> +static inline void kvmppc_load_guest_altivec(struct kvm_vcpu *v
On Wed, 03 Jul 2013 17:30:40 +0200
Paolo Bonzini wrote:
> Il 03/07/2013 16:30, Cornelia Huck ha scritto:
> > + /*
> > +* Return cookie in gpr 2, but don't overwrite the register if the
> > +* diagnose will be handled by userspace.
> > +*/
> > + if (ret != -EOPNOTSUPP)
> > +
Before moving the 3 functions ahead, they will be declared twice in
the same file before handle_vmon(). I don't know if this small change
can be committed together in one patch. If this change is needless or
should be committed in a separate patch, tell me and I will commit
another version.
Arthur
> > + * Simulate AltiVec unavailable fault to load guest state
> > + * from thread to AltiVec unit.
> > + * It requires to be called with preemption disabled.
> > + */
> > +static inline void kvmppc_load_guest_altivec(struct kvm_vcpu *vcpu)
> > +{
> > + if (kvmppc_supports_altivec()) {
> > +
Set success rflags after emulating VMXON/VMXOFF in nested environment.
Re-arrange the code sequence of 3 functions,
nested_vmx_succeed()/failValid()/failInvalid(), to avoid double
declaration in the same file.
Signed-off-by: Arthur Chunqi Li
---
arch/x86/kvm/vmx.c | 85 +++
> >>> Increase FPU laziness by calling kvmppc_load_guest_fp() just before
> >>> returning to guest instead of each sched in. Without this improvement
> >>> an interrupt may also claim floting point corrupting guest state.
> >>
> >> Not sure I follow. Could you please describe exactly what's happeni
Il 03/07/2013 16:30, Cornelia Huck ha scritto:
> + /*
> + * Return cookie in gpr 2, but don't overwrite the register if the
> + * diagnose will be handled by userspace.
> + */
> + if (ret != -EOPNOTSUPP)
> + vcpu->run->s.regs.gprs[2] = ret;
I think this should no
On 03.07.2013, at 14:42, Mihai Caraman wrote:
> Add KVM Book3E AltiVec support. KVM Book3E FPU support gracefully reuse host
> infrastructure so follow the same approach for AltiVec.
>
> Signed-off-by: Mihai Caraman
> ---
> arch/powerpc/kvm/booke.c | 72 +++
On 03.07.2013, at 15:53, Caraman Mihai Claudiu-B02008 wrote:
>>> -#ifdef CONFIG_SPE
>>> case BOOKE_INTERRUPT_SPE_ALTIVEC_UNAVAIL: {
>>> - if (vcpu->arch.shared->msr & MSR_SPE)
>>> - kvmppc_vcpu_enable_spe(vcpu);
>>> - else
>>> - kvmppc_b
On 03.07.2013, at 15:55, Caraman Mihai Claudiu-B02008 wrote:
>> -Original Message-
>> From: Alexander Graf [mailto:ag...@suse.de]
>> Sent: Wednesday, July 03, 2013 4:45 PM
>> To: Caraman Mihai Claudiu-B02008
>> Cc: kvm-...@vger.kernel.org; kvm@vger.kernel.org; linuxppc-
>> d...@lists.ozla
On Wed, Jul 03, 2013 at 04:30:53PM +0200, Cornelia Huck wrote:
> Add new functions kvm_io_bus_{read,write}_cookie() that allows users of
> the kvm io infrastructure to use a cookie value to speed up lookup of a
> device on an io bus.
>
> Signed-off-by: Cornelia Huck
Looks good to me now.
> ---
>
On Wed, Jul 03, 2013 at 10:48:33AM -0400, Bandan Das wrote:
> Gleb Natapov writes:
>
> > On Wed, Jul 03, 2013 at 04:24:33PM +0800, Arthur Chunqi Li wrote:
> >> Hi Gleb and Paolo,
> >> When I write test cases for nested virt and found that reading/writing
> >> IA32_FEATURE_CONTROL will be simply
Gleb Natapov writes:
> On Wed, Jul 03, 2013 at 04:24:33PM +0800, Arthur Chunqi Li wrote:
>> Hi Gleb and Paolo,
>> When I write test cases for nested virt and found that reading/writing
>> IA32_FEATURE_CONTROL will be simply ignored or return 0 (in
>> arch/x86/kvm/vmx.c) in VM. Checking this MSR
Add new functions kvm_io_bus_{read,write}_cookie() that allows users of
the kvm io infrastructure to use a cookie value to speed up lookup of a
device on an io bus.
Signed-off-by: Cornelia Huck
---
include/linux/kvm_host.h | 4 ++
virt/kvm/kvm_main.c | 106
Make use of cookies for the virtio ccw notification hypercall to speed up
lookup of devices on the io bus.
Signed-off-by: Cornelia Huck
---
arch/s390/kvm/diag.c | 15 ---
1 file changed, 12 insertions(+), 3 deletions(-)
diff --git a/arch/s390/kvm/diag.c b/arch/s390/kvm/diag.c
index
Hi,
fourth version of this patch set.
Changes:
- make the cookie-less read/write function return 0 again on success and
drop the changes at the callsites
Cornelia Huck (2):
KVM: kvm-io: support cookies
KVM: s390: use cookies for ioeventfd
arch/s390/kvm/diag.c | 15 +--
include/l
On Wed, Jul 03, 2013 at 04:14:39PM +0200, Cornelia Huck wrote:
> On Wed, 3 Jul 2013 16:56:42 +0300
> Gleb Natapov wrote:
>
> > On Wed, Jul 03, 2013 at 03:50:38PM +0200, Cornelia Huck wrote:
> > > Add new functions kvm_io_bus_{read,write}_cookie() that allows users of
> > > the kvm io infrastructu
On Wed, 3 Jul 2013 16:56:42 +0300
Gleb Natapov wrote:
> On Wed, Jul 03, 2013 at 03:50:38PM +0200, Cornelia Huck wrote:
> > Add new functions kvm_io_bus_{read,write}_cookie() that allows users of
> > the kvm io infrastructure to use a cookie value to speed up lookup of a
> > device on an io bus.
>
On Wed, Jul 03, 2013 at 03:50:38PM +0200, Cornelia Huck wrote:
> Add new functions kvm_io_bus_{read,write}_cookie() that allows users of
> the kvm io infrastructure to use a cookie value to speed up lookup of a
> device on an io bus.
>
> kvm_io_bus_{read,write} now returns the index on the bus; ex
> -Original Message-
> From: Alexander Graf [mailto:ag...@suse.de]
> Sent: Wednesday, July 03, 2013 4:45 PM
> To: Caraman Mihai Claudiu-B02008
> Cc: kvm-...@vger.kernel.org; kvm@vger.kernel.org; linuxppc-
> d...@lists.ozlabs.org
> Subject: Re: [PATCH 3/6] KVM: PPC: Book3E: Increase FPU lazi
> > -#ifdef CONFIG_SPE
> > case BOOKE_INTERRUPT_SPE_ALTIVEC_UNAVAIL: {
> > - if (vcpu->arch.shared->msr & MSR_SPE)
> > - kvmppc_vcpu_enable_spe(vcpu);
> > - else
> > - kvmppc_booke_queue_irqprio(vcpu,
> > -
> BOOKE_IRQPRIO_SPE_ALTIVEC_UNAV
Hi,
here's version 3 of the ioevent cookies patches.
Changes:
- x86 style fix
- fix returning index for reads
- refactored read/write functions to avoid double srcu_deference()
Cornelia Huck (2):
KVM: kvm-io: support cookies
KVM: s390: use cookies for ioeventfd
arch/ia64/kvm/kvm-ia64.c |
Add new functions kvm_io_bus_{read,write}_cookie() that allows users of
the kvm io infrastructure to use a cookie value to speed up lookup of a
device on an io bus.
kvm_io_bus_{read,write} now returns the index on the bus; existing callers
have been fixed up to accept return codes > 0.
Signed-off
Make use of cookies for the virtio ccw notification hypercall to speed up
lookup of devices on the io bus.
Signed-off-by: Cornelia Huck
---
arch/s390/kvm/diag.c | 15 ---
1 file changed, 12 insertions(+), 3 deletions(-)
diff --git a/arch/s390/kvm/diag.c b/arch/s390/kvm/diag.c
index
On 03.07.2013, at 14:42, Mihai Caraman wrote:
> Increase FPU laziness by calling kvmppc_load_guest_fp() just before
> returning to guest instead of each sched in. Without this improvement
> an interrupt may also claim floting point corrupting guest state.
Not sure I follow. Could you please desc
Fix read/write to IA32_FEATURE_CONTROL MSR in nested environment.
Simply return 0x5 when read and generate #GP(0) when write.
Delete handling codes in vmx_set_vmx_msr() and generate #GP(0) in
handle_wrmsr().
Signed-off-by: Arthur Chunqi Li
---
arch/x86/kvm/vmx.c |5 +
1 file changed, 1 i
Some guests are making use of return from machine check instruction
to do crazy things even though the 64-bit kernel doesn't handle yet
this interrupt. Emulate MCSRR0/1 SPR and rfmci instruction accordingly.
Signed-off-by: Mihai Caraman
---
arch/powerpc/include/asm/kvm_host.h |1 +
arch/powe
Some exit ids where left out from kvm_exit_names array.
Signed-off-by: Mihai Caraman
---
arch/powerpc/kvm/timing.c |4 +++-
1 files changed, 3 insertions(+), 1 deletions(-)
diff --git a/arch/powerpc/kvm/timing.c b/arch/powerpc/kvm/timing.c
index 07b6110..c392d26 100644
--- a/arch/powerpc/kv
On 03.07.2013, at 14:42, Mihai Caraman wrote:
> SPE/FP/AltiVec interrupts share the same numbers. Refactor SPE/FP exit
> handling
> to accommodate AltiVec later. Detect the targeted unit at run time since it
> can
> be configured in the kernel but not featured on hardware.
>
> Signed-off-by: M
On Wed, Jul 03, 2013 at 02:48:35PM +0200, Cornelia Huck wrote:
> Add new functions kvm_io_bus_{read,write}_cookie() that allows users of
> the kvm io infrastructure to use a cookie value to speed up lookup of a
> device on an io bus.
>
> kvm_io_bus_{read,write} now returns the index on the bus; ex
Make use of cookies for the virtio ccw notification hypercall to speed up
lookup of devices on the io bus.
Signed-off-by: Cornelia Huck
---
arch/s390/kvm/diag.c | 15 ---
1 file changed, 12 insertions(+), 3 deletions(-)
diff --git a/arch/s390/kvm/diag.c b/arch/s390/kvm/diag.c
index
Add new functions kvm_io_bus_{read,write}_cookie() that allows users of
the kvm io infrastructure to use a cookie value to speed up lookup of a
device on an io bus.
kvm_io_bus_{read,write} now returns the index on the bus; existing callers
have been fixed up to accept return codes > 0.
Signed-off
Hi,
here's the second version of the ioeventfd cookies support. Changes:
- provide kvm_io_bus_read_cookie as well
- refactoring of the cookie code in kvm_main.c
- adapt callers to changes
Cornelia Huck (2):
KVM: kvm-io: support cookies
KVM: s390: use cookies for ioeventfd
arch/ia64/kvm/kvm
Now that AltiVec support is in place enable e6500 core.
Signed-off-by: Mihai Caraman
---
arch/powerpc/kvm/e500mc.c | 10 ++
1 files changed, 10 insertions(+), 0 deletions(-)
diff --git a/arch/powerpc/kvm/e500mc.c b/arch/powerpc/kvm/e500mc.c
index 09da1ac..bec897c 100644
--- a/arch/pow
SPE/FP/AltiVec interrupts share the same numbers. Refactor SPE/FP exit handling
to accommodate AltiVec later. Detect the targeted unit at run time since it can
be configured in the kernel but not featured on hardware.
Signed-off-by: Mihai Caraman
---
arch/powerpc/kvm/booke.c | 102 +
Add KVM Book3E AltiVec support and enable e6500 core.
Mihai Caraman (6):
KVM: PPC: Book3E: Use common defines for SPE/FP/AltiVec int numbers
KVM: PPC: Book3E: Refactor SPE/FP exit handling
KVM: PPC: Book3E: Increase FPU laziness
KVM: PPC: Book3E: Add AltiVec support
KVM: PPC: Book3E: Add
Increase FPU laziness by calling kvmppc_load_guest_fp() just before
returning to guest instead of each sched in. Without this improvement
an interrupt may also claim floting point corrupting guest state.
Signed-off-by: Mihai Caraman
---
arch/powerpc/kvm/booke.c |1 +
arch/powerpc/kvm/e500mc
Add KVM Book3E AltiVec support. KVM Book3E FPU support gracefully reuse host
infrastructure so follow the same approach for AltiVec.
Signed-off-by: Mihai Caraman
---
arch/powerpc/kvm/booke.c | 72 -
1 files changed, 70 insertions(+), 2 deletions(-)
Add ONE_REG support for AltiVec on Book3E.
Signed-off-by: Mihai Caraman
---
arch/powerpc/kvm/booke.c | 32
1 files changed, 32 insertions(+), 0 deletions(-)
diff --git a/arch/powerpc/kvm/booke.c b/arch/powerpc/kvm/booke.c
index c3c3af6..6ac1f68 100644
--- a/ar
Use common BOOKE_IRQPRIO and BOOKE_INTERRUPT defines for SPE/FP/AltiVec
which share the same interrupts numbers.
Signed-off-by: Mihai Caraman
---
arch/powerpc/kvm/booke.c | 16
arch/powerpc/kvm/booke.h |4 ++--
arch/powerpc/kvm/bookehv_interrupts.
> So we can remove this hack in kvm_asm.h:
Not yet, this comment was added in the context of AltiVec RFC patches
which intended to remove a similar dependency.
>
> /*
> * TODO: Unify 32-bit and 64-bit kernel exception handlers to use same
> defines
> */
> #define BOOKE_INTERRUPT_SPE_UNAVAIL
> -Original Message-
> From: Wood Scott-B07421
> Sent: Wednesday, June 05, 2013 1:40 AM
> To: Caraman Mihai Claudiu-B02008
> Cc: kvm-...@vger.kernel.org; kvm@vger.kernel.org; linuxppc-
> d...@lists.ozlabs.org; Caraman Mihai Claudiu-B02008
> Subject: Re: [RFC PATCH 5/6] KVM: PPC: Book3E: Add
Il 03/07/2013 13:45, Cornelia Huck ha scritto:
> On Wed, 03 Jul 2013 12:58:00 +0200
> Paolo Bonzini wrote:
>
>> Il 03/07/2013 12:51, Cornelia Huck ha scritto:
>>> On Wed, 03 Jul 2013 11:21:23 +0200
>>> Paolo Bonzini wrote:
>>>
Il 03/07/2013 11:05, Paolo Bonzini ha scritto:
> Nice idea,
On Wed, 03 Jul 2013 12:58:00 +0200
Paolo Bonzini wrote:
> Il 03/07/2013 12:51, Cornelia Huck ha scritto:
> > On Wed, 03 Jul 2013 11:21:23 +0200
> > Paolo Bonzini wrote:
> >
> >> Il 03/07/2013 11:05, Paolo Bonzini ha scritto:
> >>> Nice idea, though I don't really like the duplication between
>
Il 03/07/2013 12:51, Cornelia Huck ha scritto:
> On Wed, 03 Jul 2013 11:21:23 +0200
> Paolo Bonzini wrote:
>
>> Il 03/07/2013 11:05, Paolo Bonzini ha scritto:
>>> Nice idea, though I don't really like the duplication between
>>> kvm_io_bus_write and kvm_io_bus_write_cookie.
>>>
>>> Can you make k
On Wed, 03 Jul 2013 11:21:23 +0200
Paolo Bonzini wrote:
> Il 03/07/2013 11:05, Paolo Bonzini ha scritto:
> > Nice idea, though I don't really like the duplication between
> > kvm_io_bus_write and kvm_io_bus_write_cookie.
> >
> > Can you make kvm_io_bus_write, and perhaps kvm_io_bus_read too, ret
On Wed, Jul 3, 2013 at 5:07 AM, Alex Williamson
wrote:
> On Tue, 2013-07-02 at 23:25 +, Yoder Stuart-B08248 wrote:
>> The write-up below is the first draft of a proposal for how the kernel can
>> expose
>> platform devices to user space using vfio.
>>
>> In short, I'm proposing a new ioctl VF
OK, I will write a patch as what Paolo says. Anything else need to be taken
into consideration, Paolo?
Arthur Chunqi Li
Department of Computer Science
School of EECS
Peking University
Beijing, China
>From my iPhone
在 2013-7-3，17:14，Gleb Natapov 写道：
> On Wed, Jul 03, 2013 at 04:24:33PM +0800,
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