From: Dexuan Cui
vmbus_process_offer() mustn't call channel->sc_creation_callback()
directly for sub-channels, because sc_creation_callback() ->
vmbus_open() may never get the host's response to the
OPEN_CHANNEL message (the host may rescind a channel at any time,
e.g. in the case of hot
From: Dexuan Cui
This is a longstanding issue: if the vmbus upper-layer drivers try to
consume too many GPADLs, the host may return with an error
0xC044 (STATUS_QUOTA_EXCEEDED), but currently we forget to check
the creation_status, and hence we can pass an invalid GPADL handle
into the
From: "K. Y. Srinivasan"
Miscellaneous fixes.
Dexuan Cui (2):
Drivers: hv: vmbus: check the creation_status in
vmbus_establish_gpadl()
Drivers: hv: vmbus: offload the handling of channels to two workqueues
drivers/hv/channel.c | 8 ++
drivers/hv/channel_mgmt.c | 188
From: Dexuan Cui
Commit d86adf482b84 ("scsi: storvsc: Enable multi-queue support") removed
the usage of the API in Jan 2017, and the API is not used since then.
netvsc and storvsc have their own algorithms to determine the outgoing
channel, so this API is useless.
And the API is potentially
From: "K. Y. Srinivasan"
This series enables Linux guests running on Hyper-V on ARM64
hardware. New ARM64-specific code in arch/arm64/hyperv initializes
Hyper-V, including its synthetic clocks and hypercall mechanism.
Existing architecture independent drivers for Hyper-V's VMbus and
synthetic
From: "K. Y. Srinivasan"
This series enables Linux guests running on Hyper-V on ARM64
hardware. New ARM64-specific code in arch/arm64/hyperv initializes
Hyper-V, including its synthetic clocks and hypercall mechanism.
Existing architecture independent drivers for Hyper-V's VMbus and
synthetic
From: Michael Kelley
Update drivers/hv/Kconfig so CONFIG_HYPERV can be selected on ARM64,
causing the Hyper-V specific code to be built.
Signed-off-by: Michael Kelley
Signed-off-by: K. Y. Srinivasan
---
drivers/hv/Kconfig | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git
From: Michael Kelley
Add ARM64-specific code to enable Hyper-V. This code includes:
* Detecting Hyper-V and initializing the guest/Hyper-V interface
* Setting up Hyper-V's synthetic clocks
* Making hypercalls using the HVC instruction
* Setting up VMbus and stimer0 interrupts
* Setting up kexec
From: Michael Kelley
Add hooks to enable/disable a per-CPU IRQ for VMbus. These hooks
are in the architecture independent setup and shutdown paths for
Hyper-V, and are needed by Linux guests on Hyper-V on ARM64. The
x86/x64 implementation is null because VMbus interrupts on x86/x64
don't use an
From: Michael Kelley
hyperv-tlfs.h defines Hyper-V interfaces from the Hyper-V Top Level
Functional Spec (TLFS). The TLFS is distinctly oriented to x86/x64,
and Hyper-V has not separated out the architecture-dependent parts into
x86/x64 vs. ARM64. So hyperv-tlfs.h includes information for ARM64
From: "K. Y. Srinivasan"
Some miscellaneous fixes.
Dexuan Cui (1):
Drivers: hv: vmbus: Use get/put_cpu() in vmbus_connect()
Vitaly Kuznetsov (1):
tools: hv: fcopy: set 'error' in case an unknown operation was
requested
drivers/hv/connection.c| 8 +---
From: Vitaly Kuznetsov
'error' variable is left uninitialized in case we see an unknown operation.
As we don't immediately return and proceed to pwrite() we need to set it
to something, HV_E_FAIL sounds good enough.
Signed-off-by: Vitaly Kuznetsov
Signed-off-by: K. Y. Srinivasan
---
From: Dexuan Cui
With CONFIG_DEBUG_PREEMPT=y, I always see this warning:
BUG: using smp_processor_id() in preemptible []
Fix the false warning by using get/put_cpu().
Here vmbus_connect() sends a message to the host and waits for the
host's response. The host will deliver the response
From: "K. Y. Srinivasan"
Some miscellaneous fixes and adjustments.
Dexuan Cui (2):
Drivers: hv: vmbus: respect what we get from hv_get_synint_state()
Drivers: hv: vmbus: do not mark HV_PCIE as perf_device
Stephen Hemminger (2):
hv: add SPDX license to trace
hv: add SPDX license id to
From: Dexuan Cui
The pci-hyperv driver's channel callback hv_pci_onchannelcallback() is not
really a hot path, so we don't need to mark it as a perf_device, meaning
with this patch all HV_PCIE channels' target_cpu will be CPU0.
Signed-off-by: Dexuan Cui
Cc: sta...@vger.kernel.org
Cc: Stephen
From: Dexuan Cui
I didn't really hit a bug, but just happened to notice the redundant line.
Signed-off-by: Dexuan Cui
Cc: Stephen Hemminger
Cc: K. Y. Srinivasan
Signed-off-by: K. Y. Srinivasan
---
drivers/hv/hv.c | 1 -
1 file changed, 1 deletion(-)
diff --git a/drivers/hv/hv.c
From: Stephen Hemminger
Missing license on Kconfig file.
Signed-off-by: Stephen Hemminger
Signed-off-by: K. Y. Srinivasan
---
drivers/hv/Kconfig | 2 ++
1 file changed, 2 insertions(+)
diff --git a/drivers/hv/Kconfig b/drivers/hv/Kconfig
index 50b89ea0e60f..97954f575c3f 100644
---
From: Stephen Hemminger
Missing license on Hyper-V VMBUS tracing files.
Signed-off-by: Stephen Hemminger
Signed-off-by: K. Y. Srinivasan
---
drivers/hv/hv_trace.c | 2 ++
drivers/hv/hv_trace.h | 2 ++
2 files changed, 4 insertions(+)
diff --git a/drivers/hv/hv_trace.c
From: "K. Y. Srinivasan"
Implement APIC related enlightenments.
K. Y. Srinivasan (5):
X86: Hyper-V: Enlighten APIC access
X86: Hyper-V: Enable IPI enlightenments
X86: Hyper-V: Enhanced IPI enlightenment
X86: Hyper-V: Consolidate code for converting cpumask to vpset
X86: Hyper-V:
From: "K. Y. Srinivasan"
Support enhanced IPI enlightenments (to target more than 64 CPUs).
Signed-off-by: K. Y. Srinivasan
---
arch/x86/hyperv/hv_apic.c | 49 --
arch/x86/include/asm/hyperv-tlfs.h | 1 +
arch/x86/include/asm/mshyperv.h| 39
From: "K. Y. Srinivasan"
Consolidate the allocation of the hypercall input page.
Signed-off-by: K. Y. Srinivasan
---
arch/x86/hyperv/hv_init.c | 2 --
arch/x86/hyperv/mmu.c | 33 +
arch/x86/include/asm/mshyperv.h | 1 -
3 files changed, 9
From: "K. Y. Srinivasan"
Hyper-V supports MSR based APIC access; implement
the enlightenment.
Signed-off-by: K. Y. Srinivasan
---
arch/x86/hyperv/Makefile| 2 +-
arch/x86/hyperv/hv_apic.c | 98 +
arch/x86/hyperv/hv_init.c | 5 ++-
From: "K. Y. Srinivasan"
Consolidate code for converting cpumask to vpset.
Signed-off-by: K. Y. Srinivasan
---
arch/x86/hyperv/hv_apic.c | 2 +-
arch/x86/hyperv/mmu.c | 45 +++---
arch/x86/include/asm/hyperv-tlfs.h | 2 +-
3 files
From: "K. Y. Srinivasan"
Hyper-V supports hypercalls to implement IPI; use them.
Signed-off-by: K. Y. Srinivasan
---
arch/x86/hyperv/hv_apic.c | 125 +
arch/x86/hyperv/hv_init.c | 17 +
arch/x86/include/asm/hyperv-tlfs.h | 9 +++
From: "K. Y. Srinivasan"
Implement APIC related enlightenments.
V2: Addressed comments from Thomas Gleixner
and Michael Kelley (EOSG) .
K. Y. Srinivasan (5):
X86: Hyper-V: Enlighten APIC access
X86: Hyper-V: Enable IPI enlightenments
X86: Hyper-V: Enhanced IPI enlightenment
X86:
From: "K. Y. Srinivasan"
Hyper-V supports hypercalls to implement IPI; use them.
Signed-off-by: K. Y. Srinivasan
---
arch/x86/hyperv/hv_apic.c | 118 +
arch/x86/hyperv/hv_init.c | 27 +
arch/x86/include/asm/hyperv-tlfs.h | 15
From: "K. Y. Srinivasan"
Hyper-V supports MSR based APIC access; implement
the enlightenment.
Signed-off-by: K. Y. Srinivasan
---
arch/x86/hyperv/Makefile| 2 +-
arch/x86/hyperv/hv_apic.c | 101
arch/x86/hyperv/hv_init.c | 5 +-
From: "K. Y. Srinivasan"
Consolidate the allocation of the hypercall input page.
Signed-off-by: K. Y. Srinivasan
---
arch/x86/hyperv/hv_init.c | 2 --
arch/x86/hyperv/mmu.c | 30 ++
arch/x86/include/asm/mshyperv.h | 1 -
3 files changed, 6
From: "K. Y. Srinivasan"
Support enhanced IPI enlightenments (to target more than 64 CPUs).
Signed-off-by: K. Y. Srinivasan
---
arch/x86/hyperv/hv_apic.c | 42 +-
arch/x86/hyperv/mmu.c | 2 +-
arch/x86/include/asm/hyperv-tlfs.h | 15
From: "K. Y. Srinivasan"
Consolidate code for converting cpumask to vpset.
Signed-off-by: K. Y. Srinivasan
---
arch/x86/hyperv/mmu.c | 43 ++-
1 file changed, 2 insertions(+), 41 deletions(-)
diff --git a/arch/x86/hyperv/mmu.c b/arch/x86/hyperv/mmu.c
From: Stephen Hemminger
In 4.9 kernel, the sysfs files for Hyper-V VMBus changed name but
the documentation files were not updated. The current sysfs file
names are /sys/bus/vmbus/devices//...
See commit 9a56e5d6a0ba ("Drivers: hv: make VMBus bus ids persistent")
and commit f6b2db084b65
From: Dexuan Cui
With VMBus protocol 5.0, we're able to better support new features, e.g.
running two or more VMBus drivers simultaneously in a single VM -- note:
we can't simply load the current VMBus driver twice, instead, a secondary
VMBus driver must be implemented.
This patch adds the
From: "K. Y. Srinivasan"
Implement APIC related enlightenments.
V2: Addressed comments from Thomas Gleixner
and Michael Kelley (EOSG) .
V3: Address build issues reported by kbuild test robot
K. Y. Srinivasan (5):
X86: Hyper-V: Enlighten APIC access
X86: Hyper-V: Enable IPI
From: "K. Y. Srinivasan"
Consolidate code for converting cpumask to vpset.
Signed-off-by: K. Y. Srinivasan
Reviewed-by: Michael Kelley
---
arch/x86/hyperv/mmu.c | 43 ++-
1 file changed, 2 insertions(+), 41 deletions(-)
diff --git
From: "K. Y. Srinivasan"
Support enhanced IPI enlightenments (to target more than 64 CPUs).
Signed-off-by: K. Y. Srinivasan
Reviewed-by: Michael Kelley
---
arch/x86/hyperv/hv_apic.c | 42 +-
arch/x86/hyperv/mmu.c | 2 +-
From: "K. Y. Srinivasan"
Hyper-V supports hypercalls to implement IPI; use them.
Signed-off-by: K. Y. Srinivasan
Reviewed-by: Michael Kelley
---
arch/x86/hyperv/hv_apic.c | 117 +
arch/x86/hyperv/hv_init.c | 27 +++
From: "K. Y. Srinivasan"
Consolidate the allocation of the hypercall input page.
Signed-off-by: K. Y. Srinivasan
Reviewed-by: Michael Kelley
---
arch/x86/hyperv/hv_init.c | 2 --
arch/x86/hyperv/mmu.c | 30 ++
arch/x86/include/asm/mshyperv.h | 1
From: "K. Y. Srinivasan"
Hyper-V supports MSR based APIC access; implement
the enlightenment.
Signed-off-by: K. Y. Srinivasan
Reviewed-by: Michael Kelley
---
arch/x86/hyperv/Makefile| 2 +-
arch/x86/hyperv/hv_apic.c | 104
From: Dexuan Cui
Without the patch, vmbus_hvsock_device_unregister() can destroy the device
prematurely when close() is called, and can cause NULl dereferencing or
potential data loss (the last portion of the data stream may be dropped
prematurely).
Signed-off-by: Dexuan Cui
Cc: Haiyang Zhang
From: "K. Y. Srinivasan"
Miscellaneous enhancements and fixes.
K. Y. Srinivasan (1):
Drivers: hv: vmbus: Make pannic reporting to be more useful
Stephen Hemminger (2):
Drivers: hv: vmbus: Expose per-channel interrupts and events counters
vmbus: initialize reserved fields in messages
From: "K. Y. Srinivasan"
Hyper-V allows the guest to report panic and the guest can pass additional
information. All this is logged on the host. Currently Linux is passing back
information that is not particularly useful. Make the following changes:
1. Windows uses crash MSR P0 to report
From: Stephen Hemminger
When investigating performance, it is useful to be able to look at
the number of host and guest events per-channel. This is equivalent
to per-device interrupt statistics.
Signed-off-by: Stephen Hemminger
Signed-off-by: K. Y. Srinivasan
---
From: Stephen Hemminger
Make sure and initialize reserved fields in messages to host,
rather than passing stack junk.
Signed-off-by: Stephen Hemminger
Signed-off-by: K. Y. Srinivasan
---
drivers/hv/channel.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/drivers/hv/channel.c
From: Dexuan Cui
Without the patch, vmbus_hvsock_device_unregister() can destroy the device
prematurely when close() is called, and can cause NULl dereferencing or
potential data loss (the last portion of the data stream may be dropped
prematurely).
Please consider this for 4.14.
From: "K. Y. Srinivasan"
This patch addresses the following bugs in the current rescind handling code:
1. Fixes a race condition where we may be invoking hv_process_channel_removal()
on an already freed channel.
2. Prevents indefinite wait when rescinding sub-channels by correctly setting
the
From: "K. Y. Srinivasan"
Reply-To: k...@microsoft.com
Miscellaneous enhancements.
K. Y. Srinivasan (1):
Drivers: hv: vmbus: Make pannic reporting to be more useful
Stephen Hemminger (1):
Drivers: hv: vmbus: Expose per-channel interrupts and events counters
From: Stephen Hemminger
When investigating performance, it is useful to be able to look at
the number of host and guest events per-channel. This is equivalent
to per-device interrupt statistics.
Signed-off-by: Stephen Hemminger
Signed-off-by: K. Y. Srinivasan
---
From: "K. Y. Srinivasan"
Hyper-V allows the guest to report panic and the guest can pass additional
information. All this is logged on the host. Currently Linux is passing back
information that is not particularly useful. Make the following changes:
1. Windows uses crash MSR P0 to report
From: "K. Y. Srinivasan"
Reply-To: k...@microsoft.com
Messages between guest and host are used in Hyper-V as control flow. To
simplify debugging various issues which are often hard to reproduce add
tracepoints to all message senders and handlers. This is not a
performance
critical path and
From: Vitaly Kuznetsov
Add tracepoint to CHANNELMSG_OFFERCHANNEL handler.
Signed-off-by: Vitaly Kuznetsov
Signed-off-by: K. Y. Srinivasan
---
drivers/hv/channel_mgmt.c | 2 ++
drivers/hv/hv_trace.h | 37 +
2 files changed, 39 insertions(+)
diff --git
From: Vitaly Kuznetsov
Add tracepoint to CHANNELMSG_REQUESTOFFERS sender.
Signed-off-by: Vitaly Kuznetsov
Signed-off-by: K. Y. Srinivasan
---
drivers/hv/channel_mgmt.c | 4 +++-
drivers/hv/hv_trace.h | 8
2 files changed, 11 insertions(+), 1 deletion(-)
diff --git
From: Vitaly Kuznetsov
Add tracepoint to CHANNELMSG_GPADL_TORNDOWN handler.
Signed-off-by: Vitaly Kuznetsov
Signed-off-by: K. Y. Srinivasan
---
drivers/hv/channel_mgmt.c | 2 ++
drivers/hv/hv_trace.h | 8
2 files changed, 10 insertions(+)
diff --git a/drivers/hv/channel_mgmt.c
From: Vitaly Kuznetsov
Add tracepoint to vmbus_on_message() which is called when we start
processing a blocking from work context.
Signed-off-by: Vitaly Kuznetsov
Signed-off-by: K. Y. Srinivasan
---
drivers/hv/channel_mgmt.c | 2 ++
drivers/hv/hv_trace.h | 5 +
2 files changed, 7
From: Vitaly Kuznetsov
Added an additional set of trace points for when channel gets notified
or signals host.
Suggested-by: Stephen Hemminger
Signed-off-by: Vitaly Kuznetsov
Signed-off-by: K. Y. Srinivasan
---
drivers/hv/channel.c| 2 ++
drivers/hv/connection.c | 2 ++
From: Vitaly Kuznetsov
Add tracepoint to CHANNELMSG_GPADL_CREATED handler.
Signed-off-by: Vitaly Kuznetsov
Signed-off-by: K. Y. Srinivasan
---
drivers/hv/channel_mgmt.c | 2 ++
drivers/hv/hv_trace.h | 17 +
2 files changed, 19 insertions(+)
diff --git
From: Vitaly Kuznetsov
Add tracepoint to CHANNELMSG_INITIATE_CONTACT sender.
Signed-off-by: Vitaly Kuznetsov
Signed-off-by: K. Y. Srinivasan
---
drivers/hv/connection.c | 3 +++
drivers/hv/hv_trace.h | 26 ++
2 files changed, 29 insertions(+)
diff --git
From: Vitaly Kuznetsov
Add tracepoint to CHANNELMSG_TL_CONNECT_REQUEST sender.
Signed-off-by: Vitaly Kuznetsov
Signed-off-by: K. Y. Srinivasan
---
drivers/hv/channel.c | 7 ++-
drivers/hv/hv_trace.h | 20
2 files changed, 26 insertions(+), 1 deletion(-)
diff --git
From: Vitaly Kuznetsov
Add tracepoint to CHANNELMSG_RELID_RELEASED sender.
Signed-off-by: Vitaly Kuznetsov
Signed-off-by: K. Y. Srinivasan
---
drivers/hv/channel_mgmt.c | 7 +--
drivers/hv/hv_trace.h | 16
2 files changed, 21 insertions(+), 2 deletions(-)
diff
From: Vitaly Kuznetsov
Add tracepoint to CHANNELMSG_OPENCHANNEL sender.
Signed-off-by: Vitaly Kuznetsov
Signed-off-by: K. Y. Srinivasan
---
drivers/hv/channel.c | 2 ++
drivers/hv/hv_trace.h | 27 +++
2 files changed, 29 insertions(+)
diff --git
From: Vitaly Kuznetsov
Add tracepoint to CHANNELMSG_GPADL_HEADER/CHANNELMSG_GPADL_BODY sender.
Signed-off-by: Vitaly Kuznetsov
Signed-off-by: K. Y. Srinivasan
---
drivers/hv/channel.c | 6 ++
drivers/hv/hv_trace.h | 42 ++
2 files changed, 48
From: Vitaly Kuznetsov
Add tracepoint to CHANNELMSG_GPADL_TEARDOWN sender.
Signed-off-by: Vitaly Kuznetsov
Signed-off-by: K. Y. Srinivasan
---
drivers/hv/channel.c | 2 ++
drivers/hv/hv_trace.h | 18 ++
2 files changed, 20 insertions(+)
diff --git a/drivers/hv/channel.c
From: Vitaly Kuznetsov
Add tracepoint to CHANNELMSG_VERSION_RESPONSE handler.
Signed-off-by: Vitaly Kuznetsov
Signed-off-by: K. Y. Srinivasan
---
drivers/hv/channel_mgmt.c | 3 +++
drivers/hv/hv_trace.h | 11 +++
2 files changed, 14 insertions(+)
diff --git
From: Vitaly Kuznetsov
Add tracepoint to CHANNELMSG_CLOSECHANNEL sender.
Signed-off-by: Vitaly Kuznetsov
Signed-off-by: K. Y. Srinivasan
---
drivers/hv/channel.c | 2 ++
drivers/hv/hv_trace.h | 15 +++
2 files changed, 17 insertions(+)
diff --git a/drivers/hv/channel.c
From: Vitaly Kuznetsov
Add tracepoint to CHANNELMSG_RESCIND_CHANNELOFFER handler.
Signed-off-by: Vitaly Kuznetsov
Signed-off-by: K. Y. Srinivasan
---
drivers/hv/channel_mgmt.c | 2 ++
drivers/hv/hv_trace.h | 8
2 files changed, 10 insertions(+)
diff --git
From: Vitaly Kuznetsov
Add tracing subsystem to Hyper-V VMBus module and add tracepoint
to vmbus_on_msg_dpc() which is called when we receive a message from host.
Signed-off-by: Vitaly Kuznetsov
Signed-off-by: K. Y. Srinivasan
---
drivers/hv/Makefile | 4 +++-
drivers/hv/hv_trace.c
From: Vitaly Kuznetsov
Add tracepoint to CHANNELMSG_OPENCHANNEL_RESULT handler.
Signed-off-by: Vitaly Kuznetsov
Signed-off-by: K. Y. Srinivasan
---
drivers/hv/channel_mgmt.c | 2 ++
drivers/hv/hv_trace.h | 17 +
2 files changed, 19 insertions(+)
diff --git
From: K. Y. Srinivasan
Miscellaneous fixes.
Dexuan Cui (1):
vmbus: unregister device_obj->channels_kset
K. Y. Srinivasan (1):
Drivers: hv: vmbus: Fix a rescind issue
drivers/hv/channel.c | 10 --
drivers/hv/channel_mgmt.c |7 ---
drivers/hv/vmbus_drv.c|2 ++
From: K. Y. Srinivasan
The current rescind processing code will not correctly handle
the case where the host immediately rescinds a channel that has
been offerred. In this case, we could be blocked in the open call and
since the channel is rescinded, the host will not respond and we could
be
From: Dexuan Cui
Fixes: c2e5df616e1a ("vmbus: add per-channel sysfs info")
Without the patch, a device can't be thoroughly destroyed, because
vmbus_device_register() -> kset_create_and_add() still holds a reference
to the hv_device's device.kobj.
Signed-off-by: Dexuan Cui
Cc: Stephen
From: K. Y. Srinivasan
Miscellaneous cleanup.
Michael Kelley (1):
Drivers: hv: vmbus: Remove x86-isms from arch independent drivers
Stephen Hemminger (1):
vmbus: make hv_get_ringbuffer_availbytes local
arch/x86/hyperv/hv_init.c | 21 ++---
From: Stephen Hemminger
hv_get_ringbuffer_availbytes is only used by the debug info
routine so make it static. Also, add READ_ONCE() to avoid any
possible issues with potentially volatile index values.
Signed-off-by: Stephen Hemminger
Signed-off-by: K. Y. Srinivasan
---
From: Michael Kelley
hv_is_hypercall_page_setup() is used to check if Hyper-V is
initialized, but a 'hypercall page' is an x86 implementation detail
that isn't necessarily present on other architectures. Rename to the
architecture independent hv_is_hyperv_initialized() and add check
that
From: Paul Meyer
While reading in more than one block (50) of KVP records, the allocation
goes per block, but the reads used the total number of allocated records
(without resetting the pointer/stream). This causes the records buffer to
overrun when the refresh reads more than one block over the
From: Vitaly Kuznetsov
Makefiles usually come with 'install' target included so each distro
doesn't need to implement the procedure from scratch. Add it to tools/hv.
Signed-off-by: Vitaly Kuznetsov
Signed-off-by: K. Y. Srinivasan
---
tools/hv/Makefile | 23 ++-
1 files
From: "K. Y. Srinivasan"
Add additional per-channel sysfs information to help debug performance
issues.
Greg, please apply this patch-set to 4.15-rc1.
Stephen Hemminger (2):
vmbus: add per-channel sysfs info
Drivers: hv: vmbus: Expose per-channel interrupts and events counters
From: Stephen Hemminger
When investigating performance, it is useful to be able to look at
the number of host and guest events per-channel. This is equivalent
to per-device interrupt statistics.
Signed-off-by: Stephen Hemminger
Signed-off-by: K. Y. Srinivasan
---
From: Stephen Hemminger
This extends existing vmbus related sysfs structure to provide per-channel
state information. This is useful when diagnosing issues with multiple
queues in networking and storage.
The existing sysfs only displayed information about the primary
channel. The one place it
From: "K. Y. Srinivasan"
Miscellaneous fixes. Greg, please apply these to 4.14-final.
Dexuan Cui (1):
vmbus: don't acquire the mutex in vmbus_hvsock_device_unregister()
Olaf Hering (1):
Drivers: hv: fcopy: restore correct transfer length
drivers/hv/channel_mgmt.c | 4
From: Olaf Hering
Till recently the expected length of bytes read by the
daemon did depend on the context. It was either hv_start_fcopy or
hv_do_fcopy. The daemon had a buffer size of two pages, which was much
larger than needed.
Now the expected length of bytes read by the
daemon changed
From: Dexuan Cui
Due to commit 54a66265d675 ("Drivers: hv: vmbus: Fix rescind handling"),
we need this patch to resolve the below deadlock:
after we get the mutex in vmbus_hvsock_device_unregister() and call
vmbus_device_unregister() -> device_unregister() -> ... -> device_release()
->
From: K. Y. Srinivasan
Miscellaneous adjustments.
Olaf Hering (2):
Tools: hv: fix snprintf warning in kvp_daemon
Tools: hv: update buffer handling in hv_fcopy_daemon
tools/hv/hv_fcopy_daemon.c | 32 +---
tools/hv/hv_kvp_daemon.c |2 +-
2 files changed,
From: Olaf Hering
Increase buffer size so that "_{-INT_MAX}" will fit.
Spotted by the gcc7 snprintf checker.
Signed-off-by: Olaf Hering
Signed-off-by: K. Y. Srinivasan
---
tools/hv/hv_kvp_daemon.c |2 +-
1 files changed, 1 insertions(+), 1 deletions(-)
diff --git
From: Olaf Hering
Currently this warning is triggered when compiling hv_fcopy_daemon:
hv_fcopy_daemon.c:216:4: warning: dereferencing type-punned pointer will break
strict-aliasing rules [-Wstrict-aliasing]
kernel_modver = *(__u32 *)buffer;
Convert the send/receive buffer to a union and
From: K. Y. Srinivasan
This patch handles the following issues that were observed when we are
handling racing channel offer message and rescind message for the same
offer:
1. Since the host does not respond to messages on a rescinded channel,
in the current code, we could be indefinitely
From: "K. Y. Srinivasan"
Allocate the hypervisor callback IDT entry early in the boot sequence.
Signed-off-by: K. Y. Srinivasan
---
arch/x86/kernel/cpu/mshyperv.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/arch/x86/kernel/cpu/mshyperv.c
From: K. Y. Srinivasan
Miscellaneous fixes.
Alex Ng (5):
Tools: hv: vss: Skip freezing filesystems backed by loop
Drivers: hv: balloon: Correctly update onlined page count
Drivers: hv: balloon: Show the max dynamic memory assigned
Drivers: hv: balloon: Initialize last_post_time on
From: Alex Ng
Since a loop device is backed by a file, a backup will already result in
its parent filesystem being frozen. It's sufficient to just freeze the
parent filesystem, so we can skip the loop device.
This avoids a situation where a loop device and its parent filesystem are
both frozen
From: Alex Ng
Previously, num_pages_onlined was updated using value from memory online
notifier. This is incorrect because they assume that all hot-added pages
are online, even though we only online the amount that's backed by the
host. We should update num_pages_onlined only when the balloon
From: Alex Ng
Previously we were only showing max number of pages. We should make it
more clear that this value is the max amount of dynamic memory that the
Hyper-V host is willing to assign to this guest.
Signed-off-by: Alex Ng
Signed-off-by: K. Y. Srinivasan
---
drivers/hv/hv_balloon.c |
From: Alex Ng
When left uninitialized, this sometimes fails the following check in
post_status():
if (!time_after(now, (last_post_time + HZ))) {
return;
}
This causes unnecessary delays in reporting memory pressure to host after
booting up.
Signed-off-by: Alex
From: Alex Ng
There's a bug which passes the output buffer size as MAX_IP_ADDR_SIZE,
when converting the adapter_id field to UTF16. This is much larger than
the actual size (MAX_ADAPTER_ID_SIZE). Fix this by passing the proper
size.
Fortunately, the translation is limited by the length of the
From: "K. Y. Srinivasan"
Miscellaneous fixes.
V2: Dropped the patch: "vmbus: suppress uevents for hv_sock devices" as
this was only to address test trigerred issues.
Dexuan Cui (1):
vmbus: don't acquire the mutex in vmbus_hvsock_device_unregister()
Olaf Hering (1):
Drivers: hv: fcopy:
From: Dexuan Cui
Due to commit 54a66265d675 ("Drivers: hv: vmbus: Fix rescind handling"),
we need this patch to resolve the below deadlock:
after we get the mutex in vmbus_hvsock_device_unregister() and call
vmbus_device_unregister() -> device_unregister() -> ... -> device_release()
->
From: Olaf Hering
Till recently the expected length of bytes read by the
daemon did depend on the context. It was either hv_start_fcopy or
hv_do_fcopy. The daemon had a buffer size of two pages, which was much
larger than needed.
Now the expected length of bytes read by the
daemon changed
From: Stephen Hemminger
This extends existing vmbus related sysfs structure to provide per-channel
state information. This is useful when diagnosing issues with multiple
queues in networking and storage.
The existing sysfs only displayed information about the primary
channel. The one place it
From: Stephen Hemminger
When investigating performance, it is useful to be able to look at
the number of host and guest events per-channel. This is equivalent
to per-device interrupt statistics.
Signed-off-by: Stephen Hemminger
Signed-off-by: K. Y. Srinivasan
---
From: "K. Y. Srinivasan"
Miscellaneous fixes.
V2: Only the patch "Drivers: hv: vmbus: Implement Direct Mode for
stimer0"
has been modified to address review comments from Dan Carpenter.
Dexuan Cui (1):
tools: hv: fix compiler warnings about major/target_fname
Haiyang Zhang
From: Haiyang Zhang
The comments doesn't match what the current code does, also have a
typo. This patch corrects them.
Signed-off-by: Haiyang Zhang
Signed-off-by: K. Y. Srinivasan
---
drivers/hv/channel_mgmt.c | 6 ++
include/linux/hyperv.h| 2 +-
2 files changed, 3 insertions(+), 5
From: Haiyang Zhang
On Hyper-V the VF NIC has the same MAC as the related synthetic NIC.
VF NIC can work under the synthetic NIC transparently, without its
own IP address. The existing KVP daemon only gets IP from the first
NIC matching a MAC address, and may not be able to find the IP in
this
From: Vitaly Kuznetsov
We have a mix of different ideas of which loglevel should be used. Unify
on the following:
- pr_info() for normal operation
- pr_warn() for 'strange' host behavior
- pr_err() for all errors.
Signed-off-by: Vitaly Kuznetsov
Signed-off-by: K. Y. Srinivasan
---
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