On Tue, Nov 28, 2017 at 03:49:46PM +0800, Fam Zheng wrote:
> On Mon, 11/27 15:43, Roman Kagan wrote:
> > It's going to be useful, in particular, in VMBus code massively using
> > uuids aka GUIDs.
> >
> > Signed-off-by: Roman Kagan
> > ---
> > v1 ->
On Mon, Nov 27, 2017 at 04:05:16PM +0300, Roman Kagan wrote:
> UUIDs (GUIDs) are widely used in VMBus-related stuff, so a dedicated
> property type becomes helpful.
>
> In the existing code, vmgenid can immediately profit from it.
>
> Roman Kagan (2):
> qdev-properties: a
On Mon, Dec 18, 2017 at 10:42:35PM +0300, Denis V. Lunev wrote:
> On 12/18/2017 10:35 PM, Felipe Franciosi wrote:
> >> On 18 Dec 2017, at 16:16, Harris, James R wrote:
> >>> On Dec 18, 2017, at 6:38 AM, Stefan Hajnoczi wrote:
> >>> On Fri, Dec 15, 2017 at 06:02:50PM +0300, Denis V. Lunev wrote:
>
On Wed, Nov 29, 2017 at 06:15:05PM +0100, Paolo Bonzini wrote:
> On 29/11/2017 14:35, Roman Kagan wrote:
> >>
> >>> IMO, the long term solution is to make Linux guests not misbehave
> >>> when we stop lying about the L3 cache. Maybe we could provide a
> >
On Wed, Nov 29, 2017 at 07:58:19PM +0800, Longpeng (Mike) wrote:
> On 2017/11/29 18:41, Eduardo Habkost wrote:
> > On Wed, Nov 29, 2017 at 01:20:38PM +0800, Longpeng (Mike) wrote:
> >> On 2017/11/29 5:13, Eduardo Habkost wrote:
> >>> On Tue, Nov 28, 2017 at 11:20:27PM +0300, Denis V. Lunev wrote:
>
On Wed, Nov 29, 2017 at 06:17:40AM +0200, Michael S. Tsirkin wrote:
> On Tue, Nov 28, 2017 at 11:20:27PM +0300, Denis V. Lunev wrote:
> > > There's one thing I don't understand in your test case: if you
> > > just found out that Linux will behave worse if it assumes that
> > > the VCPUs are sharing
On Wed, Nov 29, 2017 at 01:20:38PM +0800, Longpeng (Mike) wrote:
> On 2017/11/29 5:13, Eduardo Habkost wrote:
>
> > [CCing the people who were copied in the original patch that
> > enabled l3cache]
> >
> > On Tue, Nov 28, 2017 at 11:20:27PM +0300, Denis V. Lunev wrote:
> >> On 11/28/2017 10:58 PM
On Tue, Nov 28, 2017 at 07:13:26PM -0200, Eduardo Habkost wrote:
> [CCing the people who were copied in the original patch that
> enabled l3cache]
Thanks, and sorry to have forgotten to do so in the patch!
> On Tue, Nov 28, 2017 at 11:20:27PM +0300, Denis V. Lunev wrote:
> > On 11/28/2017 10:58 P
On Tue, Nov 28, 2017 at 08:50:54PM +0100, Paolo Bonzini wrote:
> On 28/11/2017 19:54, Michael S. Tsirkin wrote:
> >> Now there's a downside: with L3 cache the Linux scheduler is more eager
> >> to wake up tasks on sibling CPUs, resulting in unnecessary cross-vCPU
> >> interactions and therefore exe
On Mon, Nov 27, 2017 at 08:38:41AM -0800, Ben Warren wrote:
> It looks like you dropped Marc-André and my Reviewed-by lines. Please put
> them back.
Oops. I thought that the amount of changes in the first patch was too
big to keep the R-b; however, the second patch was basically the same so
I s
UUIDs (GUIDs) are widely used in VMBus-related stuff, so a dedicated
property type becomes helpful.
In the existing code, vmgenid can immediately profit from it.
Roman Kagan (2):
qdev-properties: add UUID property type
vmgenid: use UUID property type
v1 -> v2:
- make the property defa
/vmgenid.txt this is actually desirable.
Signed-off-by: Roman Kagan
---
v1 -> v2:
- use the corresponding define for "guid" field name
hw/acpi/vmgenid.c | 30 --
1 file changed, 8 insertions(+), 22 deletions(-)
diff --git a/hw/acpi/vmgenid.c b/hw/acpi/vmgen
y.
Signed-off-by: Roman Kagan
---
v1 -> v2:
- make the property default to autogeneration if not specified
explicitly
include/hw/qdev-properties.h | 9 +++
hw/core/qdev-properties.c| 61
2 files changed, 70 insertions(+)
diff --git
It's going to be useful, in particular, in VMBus code massively using
uuids aka GUIDs.
Signed-off-by: Roman Kagan
---
v1 -> v2:
- drop dedicated testcase (for it was of no value) and incorporate
is_null and is_equal assertions into uuid_generate testcase
include/qemu/uuid.h | 2 +
On Mon, Nov 27, 2017 at 11:45:52AM +, Daniel P. Berrange wrote:
> On Fri, Nov 24, 2017 at 06:34:03PM +0100, Thomas Huth wrote:
> > On 24.11.2017 15:32, Roman Kagan wrote:
> > > It's going to be useful, in particular, in VMBus code massively using
> > > uuids ak
On Fri, Nov 24, 2017 at 06:34:03PM +0100, Thomas Huth wrote:
> On 24.11.2017 15:32, Roman Kagan wrote:
> > +++ b/tests/test-uuid.c
> > @@ -116,6 +116,29 @@ static void test_uuid_is_null(void)
> > g_assert_false(qemu_uuid_is_null(&uuid_not_null_2));
>
On Fri, Nov 24, 2017 at 08:36:53PM -0600, Corey Minyard wrote:
> On 11/24/2017 09:36 AM, Roman Kagan wrote:
> > UUIDs (GUIDs) are widely used in VMBus-related stuff, so a dedicated
> > property type becomes helpful.
> >
> > Signed-off-by: Roman Kagan
> > ---
&
/vmgenid.txt this is actually desirable.
Signed-off-by: Roman Kagan
---
hw/acpi/vmgenid.c | 30 --
1 file changed, 8 insertions(+), 22 deletions(-)
diff --git a/hw/acpi/vmgenid.c b/hw/acpi/vmgenid.c
index 105044f666..84ff015bda 100644
--- a/hw/acpi/vmgenid.c
+++ b/hw/acpi/
UUIDs (GUIDs) are widely used in VMBus-related stuff, so a dedicated
property type becomes helpful.
Signed-off-by: Roman Kagan
---
include/hw/qdev-properties.h | 3 +++
hw/core/qdev-properties.c| 52
2 files changed, 55 insertions(+)
diff --git
UUIDs (GUIDs) are widely used in VMBus-related stuff, so a dedicated
property type becomes helpful.
In the existing code, vmgenid can immediately profit from it.
Roman Kagan (2):
qdev-properties: add UUID property type
vmgenid: use UUID property type
include/hw/qdev-properties.h | 3
It's going to be useful, in particular, in VMBus code massively using
uuids aka GUIDs.
Signed-off-by: Roman Kagan
---
include/qemu/uuid.h | 2 ++
tests/test-uuid.c | 24
util/uuid.c | 7 ++-
3 files changed, 32 insertions(+), 1 deletion(-)
diff --
The value of HV_X64_MSR_SVERSION is initialized once at vcpu init, and
is reset to zero on vcpu reset, which is wrong.
It is supposed to be a constant, so drop the field from X86CPU, set the
msr with the constant value, and don't bother getting it.
Signed-off-by: Roman Kagan
---
target
-off-by: Roman Kagan
---
target/i386/cpu.h | 5 -
target/i386/kvm.c | 23 +++
2 files changed, 19 insertions(+), 9 deletions(-)
diff --git a/target/i386/cpu.h b/target/i386/cpu.h
index b086b1528b..ea9db80de5 100644
--- a/target/i386/cpu.h
+++ b/target/i386/cpu.h
Initially SINTx msrs should be in "masked" state. To ensure that
happens on *every* reset, move setting their values to
kvm_arch_vcpu_reset.
Signed-off-by: Roman Kagan
---
target/i386/kvm.c | 12 +++-
1 file changed, 7 insertions(+), 5 deletions(-)
diff --git a/target/i3
These patches fix problems with hyperv msr initialization.
Evgeny Yakovlev (1):
hyperv: set partition-wide MSRs only on first vcpu
Roman Kagan (2):
hyperv: ensure SINTx msrs are reset properly
hyperv: make SynIC version msr constant
target/i386/cpu.h | 6 --
target/i386/kvm.c | 44
t; "$output/linux-headers/asm-x86/"
> cp "$tmpdir/include/asm/unistd_64.h" "$output/linux-headers/asm-x86/"
Ugh, indeed, the minus sign after << causes the shell to strip only
preceding tabs, not spaces. Apparently I expanded the tabs after I
tested the script to work...
Fixes: 40bf8e9aede0f9105a9e1e4aaf17b20aaa55f9a0
Reviewed-by: Roman Kagan
Thanks,
Roman.
On Tue, Sep 19, 2017 at 02:29:32PM +0200, Paolo Bonzini wrote:
> From: Roman Kagan
>
> All definitions related to Hyper-V emulation are now taken from the QEMU
> own header, so the one imported from the kernel is no longer needed.
>
> Unfortunately it's included by kvm
On Thu, Jul 13, 2017 at 11:15:20PM +0300, Roman Kagan wrote:
> Supersede kernel's header for Hyper-V protocol definitions with our own.
> The reason is that, since this is a third-party protocol and not a
> kernel API, the kernel folks are not happy exposing it in the kernel
&g
t new names.
While at this, the protocol data structures are defined in a more
conventional way, without bitfields, enums, and excessive unions.
The code using this stuff is adjusted, too; it can now be built both
with and without the kernel header in the tree.
Signed-off-by: Roman Kagan
---
target
p working.
Once (if) this lands in QEMU I'll post patches to KVM to move its
hyperv.h out of uapi.
This is the first part split out of my former biggish "hyperv fixes and
enhancements" series. The only change is the underscore replaced with a
dash in the header file name.
Roman K
erv.h with a dummy.
Signed-off-by: Roman Kagan
---
scripts/update-linux-headers.sh | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/scripts/update-linux-headers.sh b/scripts/update-linux-headers.sh
index 2f906c4d16..ad80fe3fca 100755
--- a/scripts/update-linux-headers.sh
+++
On Fri, Jul 07, 2017 at 02:22:20PM +0200, Igor Mammedov wrote:
> On Thu, 29 Jun 2017 20:51:01 +0300
> Roman Kagan wrote:
>
> > On Thu, Jun 29, 2017 at 05:05:46PM +0200, Igor Mammedov wrote:
> > > On Wed, 21 Jun 2017 19:24:15 +0300
> > > Roman Kagan wrote:
On Thu, Jun 29, 2017 at 05:20:30PM +0200, Igor Mammedov wrote:
> On Wed, 21 Jun 2017 19:24:01 +0300
> Roman Kagan wrote:
>
> > This series applies miscellaneous fixes and enhancements to Hyper-V
> > emulation code in QEMU, and lays out the ground for VMBus devices.
>
On Thu, Jun 29, 2017 at 05:05:46PM +0200, Igor Mammedov wrote:
> On Wed, 21 Jun 2017 19:24:15 +0300
> Roman Kagan wrote:
> > +static void synic_realize(DeviceState *dev, Error **errp)
> > +{
> > +Object *obj = OBJECT(dev);
> > +SynICState *synic = SYNIC(d
On Thu, Jun 29, 2017 at 04:39:00PM +0200, Igor Mammedov wrote:
> On Thu, 29 Jun 2017 16:10:20 +0300
> Roman Kagan wrote:
>
> > On Thu, Jun 29, 2017 at 01:53:29PM +0200, Igor Mammedov wrote:
> > > On Thu, 29 Jun 2017 12:53:27 +0300
> > > Roman Kagan wrote:
>
On Thu, Jun 29, 2017 at 01:53:29PM +0200, Igor Mammedov wrote:
> On Thu, 29 Jun 2017 12:53:27 +0300
> Roman Kagan wrote:
>
> > On Wed, Jun 28, 2017 at 04:47:43PM +0200, Igor Mammedov wrote:
> > > On Wed, 21 Jun 2017 19:24:08 +0300
> > > Roman Kagan wrote:
&g
On Wed, Jun 28, 2017 at 04:47:43PM +0200, Igor Mammedov wrote:
> On Wed, 21 Jun 2017 19:24:08 +0300
> Roman Kagan wrote:
>
> > Hyper-V identifies vCPUs by Virtual Processor (VP) index which can be
> > queried by the guest via HV_X64_MSR_VP_INDEX msr. It is defined
Signed-off-by: Roman Kagan
---
target/i386/hyperv.h | 1 +
hw/misc/hyperv_testdev.c | 1 +
target/i386/hyperv.c | 1 +
3 files changed, 3 insertions(+)
diff --git a/target/i386/hyperv.h b/target/i386/hyperv.h
index f101144..cba6cbf 100644
--- a/target/i386/hyperv.h
+++ b/target/i386
Add infrastructure to signal SynIC event flags by atomically setting the
corresponding bit in the event flags page and firing a SINT if
necessary.
Signed-off-by: Roman Kagan
---
v1 -> v2:
- swapped kvm_hv_sint_route_set_sint and memory_region_set_dirty
target/i386/hyperv.h | 2 ++
tar
Signed-off-by: Roman Kagan
---
MAINTAINERS | 7 +++
1 file changed, 7 insertions(+)
diff --git a/MAINTAINERS b/MAINTAINERS
index 120788d..16c5422 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -852,6 +852,13 @@ F: hw/core/machine.c
F: hw/core/null-machine.c
F: include/hw/boards.h
+Hyper
the incoming events are signaled on the configured vCPUs.
Signed-off-by: Roman Kagan
---
hw/misc/hyperv_testdev.c | 162 ++-
1 file changed, 161 insertions(+), 1 deletion(-)
diff --git a/hw/misc/hyperv_testdev.c b/hw/misc/hyperv_testdev.c
index fa435ab
Make Hyper-V SynIC a device which is attached as a child to X86CPU. For
now it only makes SynIC visibile in the qom hierarchy, and maintains its
internal fields in sync with the respecitve msrs of the parent cpu (the
fields will be used in followup patches).
Signed-off-by: Roman Kagan
---
v1
Add handling of POST_MESSAGE hypercall. For that, add an interface to
regsiter a handler for the messages arrived from the guest on a
particular connection id (IOW set up a message connection in Hyper-V
speak).
Signed-off-by: Roman Kagan
---
v1 -> v2:
- use single mutex for evt and msg hand
to wrap the mapping
between a vCPU and its vp_index. Besides, a few variables are renamed
to avoid confusion of vp_index with vcpu_id (== apic_id).
Signed-off-by: Roman Kagan
---
v1 -> v2:
- were patches 5, 6 in v1
- move vp_index initialization to hyperv_init_vcpu
- check capability before tryin
avoid expensive user
exit just to look up an eventfd by connection number and signal it.
Signed-off-by: Roman Kagan
---
v1 -> v2:
- use single mutex for evt and msg handler lists
target/i386/hyperv.h | 2 +
target/i386/hyperv.c | 113 +--
added when in_kvm_only == false, no extra compat logic is
necessary.
Signed-off-by: Roman Kagan
---
v1 -> v2:
- was patch 15 in v1
- add comment on using async_safe_run_on_cpu
target/i386/hyperv.c | 72 +++-
1 file changed, 66 insertions(+), 6 delet
Use X86CPU pointer to refer to the respective HvSintRoute instead of
vp_index. This is more convenient and also paves the way for future
enhancements.
Signed-off-by: Roman Kagan
---
v1 -> v2:
- was patch 11 in v1
- pass vp_index to sint_route_create, and lookup X86CPU * inside
target/i
Multiple entities (e.g. VMBus devices) can use the same SINT route. To
make their lives easier in maintaining SINT route ownership, make it
reference-counted. Adjust the respective API names accordingly.
Signed-off-by: Roman Kagan
---
target/i386/hyperv.h | 10 +-
hw/misc
PU init and
via compat logic (as older QEMU had no users for SynIC beyond the test
device).
Also a function is added that allows the devices to query the status of
SynIC support across vCPUs.
Signed-off-by: Roman Kagan
---
v1 -> v2:
- new patch
include/hw/i386/pc.h | 5 +
target/
Add two hyperv-related caps
[they should arrive through the usual kernel header harvesting; this
patch allows to build QEMU before that happens].
Signed-off-by: Roman Kagan
---
linux-headers/linux/kvm.h | 2 ++
1 file changed, 2 insertions(+)
diff --git a/linux-headers/linux/kvm.h b/linux
Initially SINTx msrs should be in "masked" state. To ensure that
happens on *every* reset, move setting their values to
kvm_arch_vcpu_reset.
Signed-off-by: Roman Kagan
---
v1 -> v2:
- split out of v1 patch 4
target/i386/kvm.c | 12 +++-
1 file changed, 7 insertions(+)
the
header.
Signed-off-by: Roman Kagan
---
target/i386/hyperv.h | 14 +++---
hw/misc/hyperv_testdev.c | 2 +-
target/i386/hyperv.c | 16 ++--
3 files changed, 18 insertions(+), 14 deletions(-)
diff --git a/target/i386/hyperv.h b/target/i386/hyperv.h
index 82f4757
The value of HV_X64_MSR_SVERSION is initialized once at vcpu init, and
is reset to zero on vcpu reset, which is wrong.
It is supposed to be a constant, so drop the field from X86CPU, set the
msr with the constant value, and don't bother getting it.
Signed-off-by: Roman Kagan
---
v1
Signed-off-by: Roman Kagan
---
target/i386/hyperv.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/target/i386/hyperv.c b/target/i386/hyperv.c
index 4f57447..2121d8f 100644
--- a/target/i386/hyperv.c
+++ b/target/i386/hyperv.c
@@ -88,7 +88,7 @@ HvSintRoute
There's no point setting up an sint ack notifier if no callback is
specified.
Signed-off-by: Roman Kagan
---
target/i386/hyperv.c | 33 +++--
1 file changed, 19 insertions(+), 14 deletions(-)
diff --git a/target/i386/hyperv.c b/target/i386/hyperv.c
index 21
-off-by: Roman Kagan
---
target/i386/cpu.h | 5 -
target/i386/kvm.c | 20
2 files changed, 16 insertions(+), 9 deletions(-)
diff --git a/target/i386/cpu.h b/target/i386/cpu.h
index 464ed1e..ad8600d 100644
--- a/target/i386/cpu.h
+++ b/target/i386/cpu.h
@@ -1089,10
names.
While at this, the protocol data structures are defined in a more
conventional way, without bitfields, enums, and excessive unions.
The code using this stuff is adjusted, too; it can now be built both
with and without the kernel header in the tree.
Signed-off-by: Roman Kagan
---
target
cpu
Roman Kagan (22):
hyperv: add header with protocol definitions
update-linux-headers: prepare for hyperv.h removal
hyperv: ensure SINTx msrs are reset properly
hyperv: make SynIC version msr constant
[not to commit] add new hyperv-related caps
hyperv: ensure VP index equal to QEMU cpu_in
erv.h with a dummy.
Signed-off-by: Roman Kagan
---
scripts/update-linux-headers.sh | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/scripts/update-linux-headers.sh b/scripts/update-linux-headers.sh
index 2f906c4..ad80fe3 100755
--- a/scripts/update-linux-headers.sh
+++ b/scri
Make hyperv_testdev slightly easier to follow and enhance in future.
For that, put the hyperv sint routes (wrapped in a helper structure) on
a linked list rather than a fixed-size array.
Signed-off-by: Roman Kagan
---
v1 -> v2:
- was patch 7 in v1
- renamed the variables to distingu
On Thu, Jun 15, 2017 at 03:27:28PM +0200, Igor Mammedov wrote:
> On Thu, 15 Jun 2017 15:41:08 +0300
> Roman Kagan wrote:
> > On Wed, Jun 14, 2017 at 03:00:27PM +0200, Igor Mammedov wrote:
> > > On Wed, 14 Jun 2017 13:26:44 +0200
> > > Paolo Bonzini wrote:
> &
On Wed, Jun 14, 2017 at 03:00:27PM +0200, Igor Mammedov wrote:
> On Wed, 14 Jun 2017 13:26:44 +0200
> Paolo Bonzini wrote:
>
> > On 14/06/2017 13:25, Roman Kagan wrote:
> > >> The problem with that is that it will break as soon as we create
> > >> VCPUs in
On Thu, Jun 15, 2017 at 01:42:56PM +0200, Paolo Bonzini wrote:
>
>
> On 15/06/2017 13:40, Roman Kagan wrote:
> > On Thu, Jun 15, 2017 at 10:26:58AM +0200, Paolo Bonzini wrote:
> >> On 14/06/2017 20:59, Eduardo Habkost wrote:
> >>> On Wed, Jun 14, 2017 at
On Thu, Jun 15, 2017 at 10:26:58AM +0200, Paolo Bonzini wrote:
> On 14/06/2017 20:59, Eduardo Habkost wrote:
> > On Wed, Jun 14, 2017 at 09:40:37PM +0300, Roman Kagan wrote:
> >> One more data point is that until now there was no use for vp_index in
> >> QEMU, so it did
On Wed, Jun 14, 2017 at 10:45:23AM -0300, Eduardo Habkost wrote:
> On Wed, Jun 14, 2017 at 03:38:59PM +0200, Igor Mammedov wrote:
> > On Wed, 14 Jun 2017 10:22:16 -0300
> > Eduardo Habkost wrote:
> >
> > > On Wed, Jun 14, 2017 at 03:17:54PM +0200, Paolo Bonzini wrote:
> > > >
> > > >
> > > > On
On Wed, Jun 14, 2017 at 10:53:25AM -0300, Eduardo Habkost wrote:
> On Tue, Jun 06, 2017 at 09:19:37PM +0300, Roman Kagan wrote:
> > Multiple entities (e.g. VMBus devices) can use the same SINT route. To
> > make their lives easier in maintaining SINT route ownership, make it
> &
On Wed, Jun 14, 2017 at 05:32:12PM +0200, Paolo Bonzini wrote:
>
>
> On 14/06/2017 17:28, Roman Kagan wrote:
> > On Wed, Jun 14, 2017 at 05:08:02PM +0200, Paolo Bonzini wrote:
> >>
> >>
> >> On 06/06/2017 20:19, Roman Kagan wrote:
> >>> +
On Wed, Jun 14, 2017 at 05:08:02PM +0200, Paolo Bonzini wrote:
>
>
> On 06/06/2017 20:19, Roman Kagan wrote:
> > +sint_route->msg_status = ret;
> > +/* notify the msg originator of the progress made; if the slot was
> > busy we
> > + * set msg_
On Wed, Jun 14, 2017 at 09:46:20AM -0300, Eduardo Habkost wrote:
> On Wed, Jun 14, 2017 at 12:58:04PM +0300, Roman Kagan wrote:
> > On Tue, Jun 13, 2017 at 03:34:34PM -0300, Eduardo Habkost wrote:
> > > On Tue, Jun 06, 2017 at 09:19:38PM +0300, Roman Kagan wrote:
> &
On Wed, Jun 14, 2017 at 01:19:21PM +0200, Paolo Bonzini wrote:
> On 06/06/2017 20:19, Roman Kagan wrote:
> > +typedef struct MsgHandler {
> > +struct rcu_head rcu;
> > +QLIST_ENTRY(MsgHandler) le;
> > +uint32_t conn_id;
> > +HvMsgHan
On Wed, Jun 14, 2017 at 02:11:56PM +0200, Paolo Bonzini wrote:
> On 14/06/2017 13:54, Roman Kagan wrote:
> >> Why not disable the zeroing for host-initiated MSR writes? This is
> >> pretty clearly a KVM bug, we can push it to stable kernels too.
> >
> > The on
On Wed, Jun 14, 2017 at 01:08:43PM +0200, Paolo Bonzini wrote:
>
>
> On 13/06/2017 21:02, Eduardo Habkost wrote:
> >> @@ -101,16 +101,18 @@ static void hv_test_dev_control(void *opaque, hwaddr
> >> addr, uint64_t data,
> >> uint8_t sint = data & 0xFF;
> >> uint8_t vcpu_id = (data >> 8U
On Wed, Jun 14, 2017 at 01:12:12PM +0200, Paolo Bonzini wrote:
>
>
> On 06/06/2017 20:19, Roman Kagan wrote:
> > There is a design flaw in the Hyper-V SynIC implementation in KVM: when
> > message page or event flags page is enabled by setting the corresponding
> > ms
On Tue, Jun 13, 2017 at 03:57:52PM -0300, Eduardo Habkost wrote:
> On Tue, Jun 06, 2017 at 09:19:30PM +0300, Roman Kagan wrote:
> > Hyper-V identifies vcpus by the virtual processor (VP) index which is
> > normally queried by the guest via HV_X64_MSR_VP_INDEX msr.
> >
>
On Tue, Jun 13, 2017 at 03:34:34PM -0300, Eduardo Habkost wrote:
> On Tue, Jun 06, 2017 at 09:19:38PM +0300, Roman Kagan wrote:
> > Make Hyper-V SynIC a device which is attached as a child to X86CPU. For
> > now it only makes SynIC visibile in the qom hierarchy and exposes a few
the incoming events are signaled on the configured vCPUs.
Signed-off-by: Roman Kagan
---
hw/misc/hyperv_testdev.c | 163 ++-
1 file changed, 162 insertions(+), 1 deletion(-)
diff --git a/hw/misc/hyperv_testdev.c b/hw/misc/hyperv_testdev.c
index 929bf4f
Signed-off-by: Roman Kagan
---
target/i386/hyperv.h | 1 +
hw/misc/hyperv_testdev.c | 1 +
target/i386/hyperv.c | 1 +
3 files changed, 3 insertions(+)
diff --git a/target/i386/hyperv.h b/target/i386/hyperv.h
index f82c770..cca4723 100644
--- a/target/i386/hyperv.h
+++ b/target/i386
callback.
Signed-off-by: Roman Kagan
---
target/i386/hyperv.h | 7 ++--
target/i386/hyperv.c | 116 ++-
2 files changed, 109 insertions(+), 14 deletions(-)
diff --git a/target/i386/hyperv.h b/target/i386/hyperv.h
index 9dd5ca0..fa3e988 100644
--- a
Signed-off-by: Roman Kagan
---
MAINTAINERS | 7 +++
1 file changed, 7 insertions(+)
diff --git a/MAINTAINERS b/MAINTAINERS
index 120788d..16c5422 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -852,6 +852,13 @@ F: hw/core/machine.c
F: hw/core/null-machine.c
F: include/hw/boards.h
+Hyper
Add infrastructure to signal SynIC event flags by atomically setting the
corresponding bit in the event flags page and firing a SINT if
necessary.
Signed-off-by: Roman Kagan
---
target/i386/hyperv.h | 2 ++
target/i386/hyperv.c | 32
2 files changed, 34
rrent code (in a followup patch).
Signed-off-by: Roman Kagan
---
target/i386/hyperv.c | 67 +++-
1 file changed, 61 insertions(+), 6 deletions(-)
diff --git a/target/i386/hyperv.c b/target/i386/hyperv.c
index 2d9e9fe..165133a 100644
--- a/t
avoid expensive user
exit just to look up an eventfd by connection number and signal it.
Signed-off-by: Roman Kagan
---
target/i386/hyperv.h | 2 +
target/i386/hyperv.c | 113 +--
2 files changed, 111 insertions(+), 4 deletions(-)
diff --git a/t
the
header.
Signed-off-by: Roman Kagan
---
target/i386/hyperv.h | 14 +++---
hw/misc/hyperv_testdev.c | 2 +-
target/i386/hyperv.c | 16 ++--
3 files changed, 18 insertions(+), 14 deletions(-)
diff --git a/target/i386/hyperv.h b/target/i386/hyperv.h
index c5843c9
msr writes, which is tolerable.
Signed-off-by: Roman Kagan
---
target/i386/kvm.c | 8
target/i386/machine.c | 9 -
2 files changed, 8 insertions(+), 9 deletions(-)
diff --git a/target/i386/kvm.c b/target/i386/kvm.c
index 433c912..b0b7595 100644
--- a/target/i386/kvm.c
+++
There's no point setting up an sint ack notifier if no callback is
specified.
Signed-off-by: Roman Kagan
---
target/i386/hyperv.c | 33 +++--
1 file changed, 19 insertions(+), 14 deletions(-)
diff --git a/target/i386/hyperv.c b/target/i386/hyperv.c
index 9a
Make Hyper-V SynIC a device which is attached as a child to X86CPU. For
now it only makes SynIC visibile in the qom hierarchy and exposes a few
properties which are maintained in sync with the respecitve msrs of the
parent cpu.
Signed-off-by: Roman Kagan
---
target/i386/hyperv.h | 4
Add handling of POST_MESSAGE hypercall. For that, add an interface to
regsiter a handler for the messages arrived from the guest on a
particular connection id (IOW set up a message connection in Hyper-V
speak).
Signed-off-by: Roman Kagan
---
target/i386/hyperv.h | 5 +++
target/i386/hyperv.c
Make sure HV_X64_MSR_SVERSION and HV_X64_MSR_SINTx are properly
initialized at guest start.
For that, move the field containing SVERSION value into the region in
CPUX86State which is preserved across resets, and move the
initialization of SINTx to kvm_arch_vcpu_reset().
Signed-off-by: Roman
Multiple entities (e.g. VMBus devices) can use the same SINT route. To
make their lives easier in maintaining SINT route ownership, make it
reference-counted. Adjust the respective API names accordingly.
Signed-off-by: Roman Kagan
---
target/i386/hyperv.h | 10 +-
hw/misc
Wrap the bulk of kvm_cpu_exec with cpu_exec_start/end, so that kvm
version can also enjoy performing certain operations while all vCPUs are
quiescent.
Signed-off-by: Roman Kagan
---
kvm-all.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/kvm-all.c b/kvm-all.c
index 494b925..85668fb
; when used with modified SeaBIOS it can also
install and boot with no extra drivers required. We hope to submit it
within 2.10 merge window in a few reasonably-sized self-contained
patchsets; this is the first one.
Evgeny Yakovlev (1):
hyperv: set partition-wide MSRs only on first vcpu
Roman
Signed-off-by: Roman Kagan
---
target/i386/hyperv.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/target/i386/hyperv.c b/target/i386/hyperv.c
index 480bdfe..9aa5ec5 100644
--- a/target/i386/hyperv.c
+++ b/target/i386/hyperv.c
@@ -88,7 +88,7 @@ HvSintRoute
Make hyperv_testdev slightly easier to follow and enhance in future.
For that, put the hyperv sint routes (wrapped in a helper structure) on
a linked list rather than a fixed-size array.
Signed-off-by: Roman Kagan
---
hw/misc/hyperv_testdev.c | 113
names.
While at this, the protocol data structures are defined in a more
conventional way, without bitfields, enums, and excessive unions.
The code using this stuff is adjusted, too; it can now be built both
with and without the kernel header in the tree.
Signed-off-by: Roman Kagan
---
target
erv.h with a dummy.
Signed-off-by: Roman Kagan
---
scripts/update-linux-headers.sh | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/scripts/update-linux-headers.sh b/scripts/update-linux-headers.sh
index 2f906c4..ad80fe3 100755
--- a/scripts/update-linux-headers.sh
+++ b/scri
ssert that it's equal to cpu_index. On current kernels
this will work by luck; future ones will accept the value from
userspace.
Signed-off-by: Roman Kagan
---
target/i386/hyperv.h | 2 ++
target/i386/hyperv.c | 5 +
target/i386/kvm.c| 26 ++
3 files c
Locate the vcpu by its VP index (equal to QEMU cpu_index).
Signed-off-by: Roman Kagan
---
target/i386/hyperv.h | 1 +
target/i386/hyperv.c | 5 +
2 files changed, 6 insertions(+)
diff --git a/target/i386/hyperv.h b/target/i386/hyperv.h
index 35da0b1..c5843c9 100644
--- a/target/i386
-off-by: Roman Kagan
---
target/i386/cpu.h | 5 -
target/i386/kvm.c | 20
2 files changed, 16 insertions(+), 9 deletions(-)
diff --git a/target/i386/cpu.h b/target/i386/cpu.h
index 9335dcc..7af2cce 100644
--- a/target/i386/cpu.h
+++ b/target/i386/cpu.h
@@ -1089,10
is needed.
>
> Signed-off-by: Denis Plotnikov
> ---
> hw/i386/kvm/clock.c | 3 +++
> 1 file changed, 3 insertions(+)
>
Please don't forget the changelog.
Reviewed-by: Roman Kagan
is needed.
>
> Signed-off-by: Denis Plotnikov
> ---
> hw/i386/kvm/clock.c | 2 ++
> 1 file changed, 2 insertions(+)
Reviewed-by: Roman Kagan
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