From: Andrey Smetanin
Actually kvm_arch_irq_routing_update() should be
kvm_arch_post_irq_routing_update() as it's called at the end
of irq routing update.
This renaming frees kvm_arch_irq_routing_update function name.
kvm_arch_irq_routing_update() weak function which will be used
to update mappi
From: Andrey Smetanin
Moved Hyper-V synic contants from guest Hyper-V drivers private
header into x86 arch uapi Hyper-V header.
Added Hyper-V synic msr's flags into x86 arch uapi Hyper-V header.
Signed-off-by: Andrey Smetanin
Reviewed-by: Roman Kagan
Signed-off-by: Denis V. Lunev
CC: Vitaly
This patchset implements the KVM part of the synthetic interrupt
controller (SynIC) which is a building block of the Hyper-V
paravirtualized device bus (vmbus).
SynIC is a lapic extension, which is controlled via MSRs and maintains
for each vCPU
- 16 synthetic interrupt "lines" (SINT's); each can
From: Andrey Smetanin
Any other irq routing types (MSI, S390_ADAPTER, upcoming Hyper-V
SynIC) map one-to-one to GSI.
Signed-off-by: Andrey Smetanin
Reviewed-by: Roman Kagan
Signed-off-by: Denis V. Lunev
CC: Vitaly Kuznetsov
CC: "K. Y. Srinivasan"
CC: Gleb Natapov
CC: Paolo Bonzini
---
vi
From: Andrey Smetanin
The function to determine if the vector is handled by ioapic used to
rely on the fact that only ioapic-handled vectors were set up to
cause vmexits when virtual apic was in use.
We're going to break this assumption when introducing Hyper-V
synthetic interrupts: they may nee
From: Andrey Smetanin
Factor out kvm_notify_acked_gsi() helper to iterate over EOI listeners
and notify those matching the given gsi.
It will be reused in the upcoming Hyper-V SynIC implementation.
Signed-off-by: Andrey Smetanin
Reviewed-by: Roman Kagan
Signed-off-by: Denis V. Lunev
CC: Vita
From: Andrey Smetanin
The loop(for) inside irqfd_update() is unnecessary
because any other value for irq_entry.type will just trigger
schedule_work(&irqfd->inject).
Signed-off-by: Andrey Smetanin
Reviewed-by: Roman Kagan
Signed-off-by: Denis V. Lunev
CC: Vitaly Kuznetsov
CC: "K. Y. Srinivasa
From: Andrey Smetanin
Allow for arch-specific interrupt types to be set. For that, add
kvm_arch_set_irq() which takes interrupt type-specific action if it
recognizes the interrupt type given, and -EWOULDBLOCK otherwise.
The default implementation always returns -EWOULDBLOCK.
Signed-off-by: And
From: Andrey Smetanin
A new vcpu exit is introduced to notify the userspace of the
changes in Hyper-V SynIC configuration triggered by guest writing to the
corresponding MSRs.
Signed-off-by: Andrey Smetanin
Reviewed-by: Roman Kagan
Signed-off-by: Denis V. Lunev
CC: Vitaly Kuznetsov
CC: "K. Y
From: Andrey Smetanin
SynIC (synthetic interrupt controller) is a lapic extension,
which is controlled via MSRs and maintains for each vCPU
- 16 synthetic interrupt "lines" (SINT's); each can be configured to
trigger a specific interrupt vector optionally with auto-EOI
semantics
- a messa
On 16/10/2015 00:16, Alex Williamson wrote:
> According to Microsoft documentation, the signature in the standard
> hypervisor CPUID leaf at 0x4000 identifies the Vendor ID and is
> for reporting and diagnostic purposes only. We can therefore allow
> the user to change it to whatever they wa
v2: Based on Paolo's suggestion, kept the common code as much as possible by
introducing memslot_valid_for_gpte().
Note: instead of joining all checks by boolean operators, splitted the
no_dirty_log case off to be a separate if-check because it is checking
clearly different thing t
This will be passed to a function later.
Signed-off-by: Takuya Yoshikawa
---
arch/x86/kvm/mmu.c | 8
arch/x86/kvm/paging_tmpl.h | 4 ++--
2 files changed, 6 insertions(+), 6 deletions(-)
diff --git a/arch/x86/kvm/mmu.c b/arch/x86/kvm/mmu.c
index b8482c0..2262728 100644
--- a/ar
On 16/10/2015 09:07, Denis V. Lunev wrote:
>
> + /* KVM_EXIT_HYPERV */
> +struct kvm_hyperv_exit hyperv;
> +Indicates that the VCPU exits into userspace to process some tasks
> +related with Hyper-V emulation. Currently used to synchronize modified
> +Hyper-V SynIC s
As a bonus, an extra memory slot search can be eliminated when
is_self_change_mapping is true.
Signed-off-by: Takuya Yoshikawa
---
arch/x86/kvm/paging_tmpl.h | 15 +++
1 file changed, 7 insertions(+), 8 deletions(-)
diff --git a/arch/x86/kvm/paging_tmpl.h b/arch/x86/kvm/paging_tmpl.
This is necessary to eliminate an extra memory slot search later.
Signed-off-by: Takuya Yoshikawa
---
arch/x86/kvm/mmu.c | 29 ++---
arch/x86/kvm/paging_tmpl.h | 6 +++---
2 files changed, 17 insertions(+), 18 deletions(-)
diff --git a/arch/x86/kvm/mmu.c b/arch/
Calling kvm_vcpu_gfn_to_memslot() twice in mapping_level() should be
avoided since getting a slot by binary search may not be negligible,
especially for virtual machines with many memory slots.
Signed-off-by: Takuya Yoshikawa
---
arch/x86/kvm/mmu.c | 17 +++--
1 file changed, 11 inse
Now that it has only one caller, and its name is not so helpful for
readers, remove it. Instead, the new memslot_valid_for_gpte() function
makes it possible to share the common code.
Signed-off-by: Takuya Yoshikawa
---
arch/x86/kvm/mmu.c | 24
1 file changed, 16 inserti
On 16/10/2015 10:03, Takuya Yoshikawa wrote:
> v2: Based on Paolo's suggestion, kept the common code as much as possible by
> introducing memslot_valid_for_gpte().
>
> Note: instead of joining all checks by boolean operators, splitted the
> no_dirty_log case off to be a separate if-c
On 15/10/2015 19:10, David Matlack wrote:
> > As reported at https://bugs.launchpad.net/qemu/+bug/1494350,
> > it is possible to have vcpu->arch.st.last_steal initialized
> > from a thread other than vcpu thread, say the iothread, via
> > KVM_SET_MSRS.
> >
> > Which can cause an overflow later (w
On Fri, Oct 16, 2015 at 09:51:58AM +0200, Paolo Bonzini wrote:
> The documentation should include the definition of the struct and the
> definition of the subtypes (currently KVM_EXIT_HYPERV_SYNIC only).
>
> Documentation for KVM_CAP_HYPERV_SINIC and KVM_IRQ_ROUTING_HV_SINT is
> missing, too.
>
>
On Wed, Oct 14, 2015 at 04:30:22PM -0400, Eric S. Johansson wrote:
> On 10/14/2015 04:04 PM, Paolo Bonzini wrote:
> >On 14/10/2015 21:39, Eric S. Johansson wrote:
> >>Latency is a bit longer than I like. USB and network connections break
> >>every time I come out of suspend part at least I don't ha
Hello,
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Dear all,
On 10/15/2015 06:53 PM, Alex Williamson wrote:
> On Thu, 2015-10-15 at 16:46 +0200, Eric Auger wrote:
>> Hi Arnd,
>> On 10/15/2015 03:59 PM, Arnd Bergmann wrote:
>>> On Thursday 15 October 2015 14:12:28 Christoffer Dall wrote:
>
> enum vfio_platform_op {
> VFIO_PLATFORM_
Ping, :-)
On 10/14/15 12:12 AM, Wanpeng Li wrote:
v2 -> v3:
* separate nested_vmx_vpid_caps and move checks to patch 3/5,
only rejoin them when reading the MSR.
v1 -> v2:
* set bit 32 of the VMX_EPT_VPID_CAP MSR
* check against the supported types in the implementation of
the INVVP
On 16/10/2015 15:13, Wanpeng Li wrote:
> Ping, :-)
> On 10/14/15 12:12 AM, Wanpeng Li wrote:
>> v2 -> v3:
>> * separate nested_vmx_vpid_caps and move checks to patch 3/5,
>> only rejoin them when reading the MSR.
>>
>> v1 -> v2:
>> * set bit 32 of the VMX_EPT_VPID_CAP MSR
>> * check aga
On Friday 16 October 2015 15:06:45 Eric Auger wrote:
> I've since forgotten his answer, but the fact that
> > __symbol_get() is only defined for modules makes it moot, we either need
> > to make symbol_get() work or define __symbol_get() for non-module
> > builds.
> I currently don't see any solu
Hi Arnd,
On 10/16/2015 03:26 PM, Arnd Bergmann wrote:
> On Friday 16 October 2015 15:06:45 Eric Auger wrote:
>
>> I've since forgotten his answer, but the fact that
>>> __symbol_get() is only defined for modules makes it moot, we either need
>>> to make symbol_get() work or define __symbol_get()
Hi Alex,
On 10/15/2015 10:52 PM, Alex Williamson wrote:
> We can only provide isolation if DMA is forced through the IOMMU
> aperture. Don't allow type1 to be used if this is not the case.
>
> Signed-off-by: Alex Williamson
> ---
>
> Eric, I see a number of IOMMU drivers enable this, do the one
On Fri, 2015-10-16 at 09:30 +0200, Paolo Bonzini wrote:
>
> On 16/10/2015 00:16, Alex Williamson wrote:
> > According to Microsoft documentation, the signature in the standard
> > hypervisor CPUID leaf at 0x4000 identifies the Vendor ID and is
> > for reporting and diagnostic purposes only. W
On 09/24/2015 05:31 PM, Shannon Zhao wrote:
> Since the reset value of PMCCNTR is UNKNOWN, use reset_unknown for its
> reset handler. Add a new case to emulate reading to PMCCNTR register.
>
> Signed-off-by: Shannon Zhao
> ---
> arch/arm64/kvm/sys_regs.c | 17 +++--
> 1 file change
On Fri, 16 Oct 2015 08:26:14 -0600
Alex Williamson wrote:
> On Fri, 2015-10-16 at 09:30 +0200, Paolo Bonzini wrote:
> >
> > On 16/10/2015 00:16, Alex Williamson wrote:
> > > According to Microsoft documentation, the signature in the standard
> > > hypervisor CPUID leaf at 0x4000 identifies t
On 09/24/2015 05:31 PM, Shannon Zhao wrote:
> Add access handler which emulates writing and reading PMSWINC
> register and add support for creating software increment event.
>
> Signed-off-by: Shannon Zhao
> ---
> arch/arm64/kvm/sys_regs.c | 18 +-
> include/kvm/arm_pmu.h |
On 09/24/2015 05:31 PM, Shannon Zhao wrote:
> Signed-off-by: Shannon Zhao
Missing commit message here.
> ---
> arch/arm64/kvm/reset.c | 3 +++
> include/kvm/arm_pmu.h | 2 ++
> virt/kvm/arm/pmu.c | 18 ++
> 3 files changed, 23 insertions(+)
>
> diff --git a/arch/arm64/
According to Microsoft documentation, the signature in the standard
hypervisor CPUID leaf at 0x4000 identifies the Vendor ID and is
for reporting and diagnostic purposes only. We can therefore allow
the user to change it to whatever they want, within the 12 character
limit. Add a new hyperv-v
On 10/16/2015 07:55 AM, Stefan Hajnoczi wrote:
QEMU can emulate PCI soundcards, including the Intel HD Audio codec
cards (-device intel-hda or -soundhw hda might do the trick). Low
latency and power consumption are usually at odds with each other.
That's because real-time audio requires small
On Fri, 2015-10-16 at 16:03 +0200, Eric Auger wrote:
> Hi Alex,
> On 10/15/2015 10:52 PM, Alex Williamson wrote:
> > We can only provide isolation if DMA is forced through the IOMMU
> > aperture. Don't allow type1 to be used if this is not the case.
> >
> > Signed-off-by: Alex Williamson
> > ---
On 10/16/2015 12:55 AM, Wei Huang wrote:
>
>
> On 09/24/2015 05:31 PM, Shannon Zhao wrote:
>> This patchset adds guest PMU support for KVM on ARM64. It takes
>> trap-and-emulate approach. When guest wants to monitor one event, it
>> will be trapped by KVM and KVM will call perf_event API to creat
On 10/15/2015 04:20 PM, Dmitry Vyukov wrote:
> Hello,
>
> I am trying to run a program in lkvm sandbox so that it communicates
> with a program on host. I run lkvm as:
>
> ./lkvm sandbox --disk sandbox-test --mem=2048 --cpus=4 --kernel
> /arch/x86/boot/bzImage --network mode=user -- /my_prog
>
>
On 10/16/15 05:05, Xiao Guangrong wrote:
>
>
> On 10/16/2015 12:18 AM, Laszlo Ersek wrote:
>> CC'ing Jordan and Chen Fan.
>>
>> On 10/15/15 09:10, Xiao Guangrong wrote:
>>>
>>>
>>> On 10/15/2015 02:58 PM, Janusz wrote:
W dniu 15.10.2015 o 08:41, Xiao Guangrong pisze:
>
>
> On 10/
A slight addition to set_string(), which optionally tests that the
string length is within the bounds specified.
Signed-off-by: Alex Williamson
---
hw/core/qdev-properties.c|7 +++
include/hw/qdev-core.h |1 +
include/hw/qdev-properties.h | 16 ++--
3 files ch
According to Microsoft documentation, the signature in the standard
hypervisor CPUID leaf at 0x4000 identifies the Vendor ID and is
for reporting and diagnostic purposes only. We can therefore allow
the user to change it to whatever they want, within the 12 character
limit. Add a new hyperv-v
v3: Incorporate suggestion from Igor to move the string length test
out to the property parsing. A string that's too long will now
get an error like:
$ qemu-system-x86_64 -cpu qemu64,hv_vendor_id=123456789abcd
qemu-system-x86_64: Property 'host-x86_64-cpu.hv-vendor-id' doesn't tak
On Sat, Oct 17, 2015 at 2:53 AM, Alex Williamson
wrote:
> v3: Incorporate suggestion from Igor to move the string length test
> out to the property parsing. A string that's too long will now
> get an error like:
>
> $ qemu-system-x86_64 -cpu qemu64,hv_vendor_id=123456789abcd
> qem
Similar to the file_inode() helper, provide a helper to lookup the inode for a
raw block device itself.
Cc: Al Viro
Signed-off-by: Dan Williams
---
fs/block_dev.c | 19 ---
1 file changed, 12 insertions(+), 7 deletions(-)
diff --git a/fs/block_dev.c b/fs/block_dev.c
index 073
If an application wants exclusive access to all of the persistent memory
provided by an NVDIMM namespace it can use this raw-block-dax facility
to forgo establishing a filesystem. This capability is targeted
primarily to hypervisors wanting to provision persistent memory for
guests.
Cc: Jeff Moye
When booting a VM using QEMU or Kvmtool there are no clear ways to
enable low level debugging for these virtual platforms. some menu port
choices are not supported by the virtual platforms at all. And there is no
help on the location of physical and virtual addresses for the ports.
This may lead
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