From: Haiyang Zhang
On Hyper-V, every VF interface has a corresponding synthetic
interface managed by netvsc that share the same MAC
address. netvsc registers for netdev events to manage this
association. Currently we use the MAC address to manage this
association but going forward, we want to us
From: Alex Fluter
error when running hypervkvpd:
$ sudo ./hv_kvp_daemon -n
sh: hv_get_dns_info: command not found
sh: hv_get_dhcp_info: command not found
sh: hv_get_dns_info: command not found
sh: hv_get_dhcp_info: command not found
The external scripts are not installed in system path,
adding
From: K. Y. Srinivasan
Enhance the rescind callback functionality by permitting the passing of an
opaque
pointer. This functionality will be used by vmbus device drivers to implement
rescind related cleanup more efficiently.
Signed-off-by: K. Y. Srinivasan
---
drivers/hv/channel_mgmt.c | 11
From: Vitaly Kuznetsov
"kernel BUG at drivers/hv/channel_mgmt.c:350!" is observed when hv_vmbus
module is unloaded. BUG_ON() was introduced in commit 85d9aa705184
("Drivers: hv: vmbus: add an API vmbus_hvsock_device_unregister()") as
vmbus_free_channels() codepath was apparently forgotten.
Fixes
From: Vitaly Kuznetsov
To make it possible to online/offline CPUs switch to cpuhp infrastructure
for doing hv_synic_init()/hv_synic_cleanup().
Signed-off-by: Vitaly Kuznetsov
Signed-off-by: K. Y. Srinivasan
---
drivers/hv/hv.c | 15 +++
drivers/hv/hyperv_vmbus.h |4
From: Vitaly Kuznetsov
Initializing hv_context.percpu_list in hv_synic_alloc() helps to prevent a
crash in percpu_channel_enq() when not all CPUs were online during
initialization and it naturally belongs there.
Signed-off-by: Vitaly Kuznetsov
Signed-off-by: K. Y. Srinivasan
---
drivers/hv/hv
From: Vitaly Kuznetsov
To get prepared to CPU offlining support we need co change the way how we
unbind clockevent devices. As one CPU may go online/offline multiple times
we need to bind it in hv_synic_init() and unbind it in hv_synic_cleanup().
There is an additional corner case: when we unload
From: K. Y. Srinivasan
After the channel is rescinded, the host does not read from the rescinded
channel.
Fail writes to a channel that has already been rescinded.
Signed-off-by: K. Y. Srinivasan
---
drivers/hv/ring_buffer.c |3 +++
1 files changed, 3 insertions(+), 0 deletions(-)
diff -
From: K. Y. Srinivasan
Some miscellaneous fixes.
K. Y. Srinivasan (1):
Drivers: hv: vmbus: Prevent sending data on a rescinded channel
Vitaly Kuznetsov (4):
Drivers: hv: vmbus: Raise retry/wait limits in vmbus_post_msg()
hv: allocate synic pages for all present CPUs
hv: init percpu_list
From: Vitaly Kuznetsov
Initializing hv_context.percpu_list in hv_synic_alloc() helps to prevent a
crash in percpu_channel_enq() when not all CPUs were online during
initialization and it naturally belongs there.
Signed-off-by: Vitaly Kuznetsov
Signed-off-by: K. Y. Srinivasan
Cc:
---
drivers/
From: Vitaly Kuznetsov
It may happen that not all CPUs are online when we do hv_synic_alloc() and
in case more CPUs come online later we may try accessing these allocated
structures.
Signed-off-by: Vitaly Kuznetsov
Signed-off-by: K. Y. Srinivasan
Cc:
---
drivers/hv/hv.c |4 ++--
1 files
From: Vitaly Kuznetsov
It may happen that secondary CPUs are still alive and resetting
hv_context.tsc_page will cause a consequent crash in read_hv_clock_tsc()
as we don't check for it being not NULL there. It is safe as we're not
freeing this page anyways.
Signed-off-by: Vitaly Kuznetsov
Signe
From: K. Y. Srinivasan
After the channel is rescinded, the host does not read from the rescinded
channel.
Fail writes to a channel that has already been rescinded. If we permit writes
on a
rescinded channel, since the host will not respond we will have situations where
we will be unable to unlo
From: Vitaly Kuznetsov
DoS protection conditions were altered in WS2016 and now it's easy to get
-EAGAIN returned from vmbus_post_msg() (e.g. when we try changing MTU on a
netvsc device in a loop). All vmbus_post_msg() callers don't retry the
operation and we usually end up with a non-functional
From: K. Y. Srinivasan
Enhance CPU online/offline management.
Vitaly Kuznetsov (2):
hv: switch to cpuhp state machine for synic init/cleanup
hv: make CPU offlining prevention fine-grained
drivers/hv/hv.c | 46 +---
drivers/hv/hyperv_vmbus
From: Vitaly Kuznetsov
To make it possible to online/offline CPUs switch to cpuhp infrastructure
for doing hv_synic_init()/hv_synic_cleanup().
Signed-off-by: Vitaly Kuznetsov
Signed-off-by: K. Y. Srinivasan
---
drivers/hv/hv.c | 15 +++
drivers/hv/hyperv_vmbus.h |4
From: Vitaly Kuznetsov
Since commit e513229b4c38 ("Drivers: hv: vmbus: prevent cpu offlining on
newer hypervisors") cpu offlining was disabled. It is still true that we
can't offline CPUs which have VMBus channels bound to them but we may have
'free' CPUs (e.v. we booted with maxcpus= parameter a
From: K. Y. Srinivasan
Implement VF association based on serial number published by
the host.
Greg, as promised here is the patchset that would use the API for
detecting if the device is a vmbus device.
If you can take the first two patches, we can submit the netvsc
patch to the net-next tree.
From: Haiyang Zhang
On Hyper-V, every VF interface has a corresponding synthetic
interface managed by netvsc that share the same MAC
address. netvsc registers for netdev events to manage this
association. Currently we use the MAC address to manage this
association but going forward, we want to us
From: Haiyang Zhang
Move some vPCI data structures to hyperv.h,
because we share them with other module.
Signed-off-by: Haiyang Zhang
Signed-off-by: K. Y. Srinivasan
---
drivers/pci/host/pci-hyperv.c | 91 --
include/linux/hyperv.h| 98 +
From: Haiyang Zhang
We currently use MAC address to match VF and synthetic NICs. Hyper-V
provides a serial number to both devices for this purpose. This patch
implements the matching based on VF serial numbers. This is the way
specified by the protocol and more reliable.
Signed-off-by: Haiyang Z
From: K. Y. Srinivasan
Miscellaneous fixes and enhancements.
K. Y. Srinivasan (3):
storvsc: Enable tracking of queue depth
storvsc: Remove the restriction on max segment size
storvsc: Enable multi-queue support
Long Li (3):
storvsc: use tagged SRB requests if supported by the device
s
From: Long Li
On I/O errors, the Windows driver doesn't set data_transfer_length
on error conditions other than SRB_STATUS_DATA_OVERRUN.
In these cases we need to set data_transfer_length to 0,
indicating there is no data transferred. On SRB_STATUS_DATA_OVERRUN,
data_transfer_length is set by the
From: Long Li
Properly set SRB flags when hosting device supports tagged queuing.
This patch improves the performance on Fiber Channel disks.
Signed-off-by: Long Li
Reviewed-by: K. Y. Srinivasan
Signed-off-by: K. Y. Srinivasan
Cc:
---
drivers/scsi/storvsc_drv.c |9 +
1 files cha
From: K. Y. Srinivasan
Remove the artificially imposed restriction on max segment size.
Signed-off-by: K. Y. Srinivasan
Reviewed-by: Long Li
---
drivers/scsi/storvsc_drv.c |2 --
1 files changed, 0 insertions(+), 2 deletions(-)
diff --git a/drivers/scsi/storvsc_drv.c b/drivers/scsi/storv
From: K. Y. Srinivasan
Enable tracking of queue depth.
Signed-off-by: K. Y. Srinivasan
Reviewed-by: Long Li
---
drivers/scsi/storvsc_drv.c |1 +
1 files changed, 1 insertions(+), 0 deletions(-)
diff --git a/drivers/scsi/storvsc_drv.c b/drivers/scsi/storvsc_drv.c
index 05526b7..ccb2101 10
From: K. Y. Srinivasan
Enable multi-q support. We will allocate the outgoing channel using
the following policy:
1. We will make every effort to pick a channel that is in the
same NUMA node that is initiating the I/O
2. The mapping between the guest CPU and the outgoin
From: Long Li
When sense message is present on error, we should pass along to the upper
layer to decide how to deal with the error.
This patch fixes connectivity issues with Fiber Channel devices.
Signed-off-by: Long Li
Reviewed-by: K. Y. Srinivasan
Signed-off-by: K. Y. Srinivasan
Cc:
---
d
From: K. Y. Srinivasan
Fix some rescind handling issues.
K. Y. Srinivasan (4):
Drivers: hv: vmbus: Fix a rescind handling bug
Drivers: hv: util: kvp: Fix a rescind processing issue
Drivers: hv: util: Fcopy: Fix a rescind processing issue
Drivers: hv: util: Backup: Fix a rescind processin
From: K. Y. Srinivasan
The host can rescind a channel that has been offered to the
guest and once the channel is rescinded, the host does not
respond to any requests on that channel. Deal with the case where
the guest may be blocked waiting for a response from the host.
Signed-off-by: K. Y. Srin
From: K. Y. Srinivasan
Fcopy may use a char device to support the communication between
the user level daemon and the driver. When the Fcopy channel is rescinded
we need to make sure that the char device is fully cleaned up before
we can process a new Fcopy offer from the host. Implement this log
From: K. Y. Srinivasan
VSS may use a char device to support the communication between
the user level daemon and the driver. When the VSS channel is rescinded
we need to make sure that the char device is fully cleaned up before
we can process a new VSS offer from the host. Implement this logic.
S
From: K. Y. Srinivasan
KVP may use a char device to support the communication between
the user level daemon and the driver. When the KVP channel is rescinded
we need to make sure that the char device is fully cleaned up before
we can process a new KVP offer from the host. Implement this logic.
S
From: K. Y. Srinivasan
The current Hyper-V code under drivers/hv has bunch of X86 specific code.
Restructure the code and move al architecture specific code to the
appropriate files.
As I was working on this restructuring, Roman Kagan
has submitted patches to restructure the Hyper-V header file
From: K. Y. Srinivasan
Move the relevant code that programs the hypervisor to an architecture
specific file.
Signed-off-by: K. Y. Srinivasan
---
arch/x86/include/asm/mshyperv.h |4
drivers/hv/hv.c | 10 +-
2 files changed, 9 insertions(+), 5 deletions(-)
dif
From: K. Y. Srinivasan
As part of the effort to interact with Hyper-V in an instruction set
architecture independent way, use the new API to get the current
tick.
Signed-off-by: K. Y. Srinivasan
---
drivers/hv/hv_util.c |3 ++-
1 files changed, 2 insertions(+), 1 deletions(-)
diff --git a
From: K. Y. Srinivasan
As part of cleaning up architecture specific code, define APIs
to manipulate the interrupt controller state.
Signed-off-by: K. Y. Srinivasan
---
arch/x86/include/asm/mshyperv.h |3 +++
drivers/hv/hv.c |8
2 files changed, 7 insertions(+),
From: K. Y. Srinivasan
As part of the effort to separate out architecture specific code, move the
crash notification function.
Signed-off-by: K. Y. Srinivasan
---
arch/x86/hyperv/hv_init.c | 26 ++
arch/x86/include/asm/mshyperv.h|1 +
arch/x86/include
From: K. Y. Srinivasan
Get rid of all unused definitions.
Signed-off-by: K. Y. Srinivasan
---
drivers/hv/hyperv_vmbus.h | 152 +
1 files changed, 2 insertions(+), 150 deletions(-)
diff --git a/drivers/hv/hyperv_vmbus.h b/drivers/hv/hyperv_vmbus.h
i
From: K. Y. Srinivasan
As part of the effort to separate out architecture specific code, move the
check for detecting if the hypercall page is setup.
Signed-off-by: K. Y. Srinivasan
---
arch/x86/hyperv/hv_init.c | 15 +++
arch/x86/include/asm/mshyperv.h |1 +
drivers/hv
From: K. Y. Srinivasan
As part of the effort to separate out architecture specific code, move the
definition of hv_x64_msr_hypercall_contents to x86 specific header file.
Signed-off-by: K. Y. Srinivasan
---
arch/x86/include/asm/mshyperv.h | 12
drivers/hv/hyperv_vmbus.h |
From: K. Y. Srinivasan
As part of the effort to separate out architecture specific code, move the
code for signaling end of message.
Signed-off-by: K. Y. Srinivasan
---
arch/x86/include/asm/mshyperv.h | 37 +
drivers/hv/channel_mgmt.c |1 +
drive
From: K. Y. Srinivasan
As part of the effort to separate out architecture specific code,
extract hypervisor version information in an architecture specific
file.
Signed-off-by: K. Y. Srinivasan
---
arch/x86/include/asm/mshyperv.h | 19 +++
arch/x86/kernel/cpu/mshyperv.c | 20 +
From: K. Y. Srinivasan
The version variable while it is initialized is not used;
get rid of it.
Signed-off-by: K. Y. Srinivasan
---
drivers/hv/hv.c |4
1 files changed, 0 insertions(+), 4 deletions(-)
diff --git a/drivers/hv/hv.c b/drivers/hv/hv.c
index 0afffd8..5a2a329 100644
--- a/
From: K. Y. Srinivasan
As part of the effort to separate out architecture specific code, move the
definition of generate_guest_id() to x86 specific header file.
Signed-off-by: K. Y. Srinivasan
---
arch/x86/include/asm/mshyperv.h | 43 +++
drivers/hv/hyperv
From: K. Y. Srinivasan
As part of the effort to separate out architecture specific code, move the
hypercall page setup to an architecture specific file.
Signed-off-by: K. Y. Srinivasan
---
arch/x86/Kbuild |3 ++
arch/x86/hyperv/Makefile|1 +
arch/x86/hyperv/hv_i
From: K. Y. Srinivasan
As part of cleaning up architecture specific code, define APIs
to manipulate the message page.
Signed-off-by: K. Y. Srinivasan
---
arch/x86/include/asm/mshyperv.h |3 +++
drivers/hv/hv.c |8
2 files changed, 7 insertions(+), 4 deletions(-
From: K. Y. Srinivasan
As part of cleaning up architecture specific code, define APIs
to manipulate the event page.
Signed-off-by: K. Y. Srinivasan
---
arch/x86/include/asm/mshyperv.h |3 +++
drivers/hv/hv.c |8
2 files changed, 7 insertions(+), 4 deletions(-)
From: K. Y. Srinivasan
As part of cleaning up architecture specific code, define an API
to retrieve the virtual procesor index.
Signed-off-by: K. Y. Srinivasan
---
arch/x86/include/asm/mshyperv.h |2 ++
drivers/hv/hv.c |2 +-
2 files changed, 3 insertions(+), 1 deletion
From: K. Y. Srinivasan
As part of the effort to separate out architecture specific code, move the
hypercall invocation code to an architecture specific file.
Signed-off-by: K. Y. Srinivasan
---
arch/x86/hyperv/hv_init.c | 54 +++---
arch/x86/include/asm/
From: K. Y. Srinivasan
As part of the effort to separate out architecture specific code,
consolidate all Hyper-V specific clocksource code to an architecture
specific code.
Signed-off-by: K. Y. Srinivasan
---
arch/x86/hyperv/hv_init.c | 104 +++
arch/
From: K. Y. Srinivasan
As part of cleaning up architecture specific code, define APIs
to manage interrupt state.
Signed-off-by: K. Y. Srinivasan
---
arch/x86/include/asm/mshyperv.h |3 +++
drivers/hv/hv.c | 12
2 files changed, 11 insertions(+), 4 deletions(-
From: K. Y. Srinivasan
The current delay between retries is unnecessarily high and is negatively
affecting the time it takes to boot the system.
Signed-off-by: K. Y. Srinivasan
---
drivers/hv/connection.c |8
1 files changed, 4 insertions(+), 4 deletions(-)
diff --git a/drivers/h
From: K. Y. Srinivasan
Some miscellaneous adjustments to the vmbus driver.
K. Y. Srinivasan (3):
Drivers: hv: vmbus: Enable explicit signaling policy for NIC channels
Drivers: hv: vmbus: Reduce the delay between retries in
vmbus_post_msg()
Drivers: hv: vmbus: Implement a mechanism to t
From: K. Y. Srinivasan
For synthetic NIC channels, enable explicit signaling policy as netvsc wants to
explicitly control when the host is to be signaled.
Signed-off-by: K. Y. Srinivasan
---
drivers/hv/channel.c | 18 --
drivers/hv/channel_mgmt.c |2 ++
drivers/hv/hy
From: K. Y. Srinivasan
On Hyper-V, performance critical channels use the monitor
mechanism to signal the host when the guest posts mesages
for the host. This mechanism minimizes the hypervisor intercepts
and also makes the host more efficient in that each time the
host is woken up, it processes a
From: K. Y. Srinivasan
Use the new APIs for eliminating a copy on the receive path. These new APIs also
help in minimizing the number of memory barriers we end up issuing (in the
ringbuffer code) since we can better control when we want to expose the ring
state to the host.
The patch is being re
From: K. Y. Srinivasan
Make in-place consumption of VMBus packets always possible. Currently we forbid
it when a packet 'wraps around' the ring so we can't provide a single
pointer to it.
The idea if this series is dead simple: let's make a single virtual mapping
for two copies (actually, two se
From: Vitaly Kuznetsov
With wrap around mappings in place we can always provide drivers with
direct links to packets on the ring buffer, even when they wrap around.
Do the required updates to get_next_pkt_raw()/put_pkt_raw()
Signed-off-by: Vitaly Kuznetsov
Signed-off-by: K. Y. Srinivasan
Teste
From: Vitaly Kuznetsov
With wrap around mappings for ring buffers we can always use a single
memcpy() to do the job.
Signed-off-by: Vitaly Kuznetsov
Signed-off-by: K. Y. Srinivasan
Tested-by: Dexuan Cui
---
drivers/hv/ring_buffer.c | 24 +++-
1 files changed, 3 insertio
From: Vitaly Kuznetsov
In preparation for doing wrap around mappings for ring buffers cleanup
vmbus_open() function:
- check that ring sizes are PAGE_SIZE aligned (they are for all in-kernel
drivers now);
- kfree(open_info) on error only after we kzalloc() it (not an issue as it
is valid to c
From: Vitaly Kuznetsov
Make it possible to always use a single memcpy() or to provide a direct
link to a packet on the ring buffer by creating virtual mapping for two
copies of the ring buffer with vmap(). Utilize currently empty
hv_ringbuffer_cleanup() to do the unmap.
While on it, replace size
From: K. Y. Srinivasan
Introduce a mechanism to control how channels will be affinitized. We will
support two policies:
1. HV_BALANCED: All performance critical channels will be dstributed
evenly amongst all the available NUMA nodes. Once the Node is assigned,
we will assign the CPU based on a s
From: Vitaly Kuznetsov
KVP daemon does fork()/exec() (with popen()) so we need to close our fds
to avoid sharing them with child processes. The immediate implication of
not doing so I see is SELinux complaining about 'ip' trying to access
'/dev/vmbus/hv_kvp'.
Signed-off-by: Vitaly Kuznetsov
Sig
From: K. Y. Srinivasan
Some fixes to the backup driver.
Alex Ng (2):
Drivers: hv: utils: Continue to poll VSS channel after handling
requests.
Drivers: hv: utils: Check VSS daemon is listening before a hot backup
drivers/hv/hv_snapshot.c | 92 ++---
From: Alex Ng
Hyper-V host will send a VSS_OP_HOT_BACKUP request to check if guest is
ready for a live backup/snapshot. The driver should respond to the check
only if the daemon is running and listening to requests. This allows the
host to fallback to standard snapshots in case the VSS daemon is
From: Alex Ng
Multiple VSS_OP_HOT_BACKUP requests may arrive in quick succession, even
though the host only signals once. The driver wass handling the first
request while ignoring the others in the ring buffer. We should poll the
VSS channel after handling a request to continue processing other r
From: K. Y. Srinivasan
Miscellaneous fixes to the balloon driver.
Alex Ng (1):
Drivers: hv: balloon: Use available memory value in pressure report
Vitaly Kuznetsov (4):
Drivers: hv: balloon: keep track of where ha_region starts
Drivers: hv: balloon: account for gaps in hot add regions
D
From: Vitaly Kuznetsov
Windows 2012 (non-R2) does not specify hot add region in hot add requests
and the logic in hot_add_req() is trying to find a 128Mb-aligned region
covering the request. It may also happen that host's requests are not 128Mb
aligned and the created ha_region will start before
From: Vitaly Kuznetsov
I'm observing the following hot add requests from the WS2012 host:
hot_add_req: start_pfn = 0x108200 count = 330752
hot_add_req: start_pfn = 0x158e00 count = 193536
hot_add_req: start_pfn = 0x188400 count = 239616
As the host doesn't specify hot add regions we're trying t
From: Vitaly Kuznetsov
With the recently introduced in-kernel memory onlining
(MEMORY_HOTPLUG_DEFAULT_ONLINE) these is no point in waiting for pages
to come online in the driver and we can get rid of the waiting.
Signed-off-by: Vitaly Kuznetsov
Signed-off-by: K. Y. Srinivasan
---
drivers/hv/h
From: Vitaly Kuznetsov
lockdep reports possible circular locking dependency when udev is used
for memory onlining:
systemd-udevd/3996 is trying to acquire lock:
((memory_chain).rwsem){.+}, at: []
__blocking_notifier_call_chain+0x4e/0xc0
but task is already holding lock:
(&dm_device.h
From: Alex Ng
Reports for available memory should use the si_mem_available() value.
The previous freeram value does not include available page cache memory.
Signed-off-by: Alex Ng
Signed-off-by: K. Y. Srinivasan
---
drivers/hv/hv_balloon.c | 13 +
1 files changed, 5 insertions(+
From: K. Y. Srinivasan
Some miscellaneous fixes and enhancements. These patches were all
sent earlier but failed to apply clean on Greg's tree. These have
now been rebased.
Alex Ng (2):
Drivers: hv: utils: Continue to poll VSS channel after handling
requests.
Drivers: hv: utils: Check VS
From: K. Y. Srinivasan
Introduce a mechanism to control how channels will be affinitized. We will
support two policies:
1. HV_BALANCED: All performance critical channels will be dstributed
evenly amongst all the available NUMA nodes. Once the Node is assigned,
we will assign the CPU based on a s
From: Vitaly Kuznetsov
In preparation for doing wrap around mappings for ring buffers cleanup
vmbus_open() function:
- check that ring sizes are PAGE_SIZE aligned (they are for all in-kernel
drivers now);
- kfree(open_info) on error only after we kzalloc() it (not an issue as it
is valid to c
From: Alex Ng
Multiple VSS_OP_HOT_BACKUP requests may arrive in quick succession, even
though the host only signals once. The driver wass handling the first
request while ignoring the others in the ring buffer. We should poll the
VSS channel after handling a request to continue processing other r
From: Vitaly Kuznetsov
With wrap around mappings for ring buffers we can always use a single
memcpy() to do the job.
Signed-off-by: Vitaly Kuznetsov
Signed-off-by: K. Y. Srinivasan
Tested-by: Dexuan Cui
---
drivers/hv/ring_buffer.c | 24 +++-
1 files changed, 3 insertio
From: Alex Ng
Hyper-V host will send a VSS_OP_HOT_BACKUP request to check if guest is
ready for a live backup/snapshot. The driver should respond to the check
only if the daemon is running and listening to requests. This allows the
host to fallback to standard snapshots in case the VSS daemon is
From: Vitaly Kuznetsov
With wrap around mappings in place we can always provide drivers with
direct links to packets on the ring buffer, even when they wrap around.
Do the required updates to get_next_pkt_raw()/put_pkt_raw()
Signed-off-by: Vitaly Kuznetsov
Signed-off-by: K. Y. Srinivasan
Teste
From: Vitaly Kuznetsov
Make it possible to always use a single memcpy() or to provide a direct
link to a packet on the ring buffer by creating virtual mapping for two
copies of the ring buffer with vmap(). Utilize currently empty
hv_ringbuffer_cleanup() to do the unmap.
While on it, replace size
From: K. Y. Srinivasan
To deal with the merge conflict between net-next and char-misc trees,
revert commit bb08d431a914 from char-misc tree. This commit can be rebased
and applied once net-next picks up char-misc changes.
---
include/linux/hyperv.h | 32 +---
1 file
From: K. Y. Srinivasan
To deal with the merge conflict between net-next and char-misc trees,
revert commit bb08d431a914 from char-misc tree. This commit can be rebased
and applied once net-next picks up char-misc changes.
Here is the commit log of the reverted patch:
"With wrap around mappings i
From: K. Y. Srinivasan
Some miscellaneous fixes.
Dexuan Cui (1):
Drivers: hv: vmbus: suppress some "hv_vmbus: Unknown GUID" warnings
Stephen Hemminger (1):
Driver: hv: vmbus: Make mmio resource local
drivers/hv/channel_mgmt.c | 26 --
drivers/hv/vmbus_drv.c|
From: Dexuan Cui
Some VMBus devices are not needed by Linux guest[1][2], and, VMBus channels
of Hyper-V Sockets don't really mean usual synthetic devices, so let's
suppress the warnings for them.
[1] https://support.microsoft.com/en-us/kb/2925727
[2] https://msdn.microsoft.com/en-us/library/jj98
From: Stephen Hemminger
This fixes a sparse warning because hyperv_mmio resources
are only used in this one file and should be static.
Signed-off-by: Stephen Hemminger
Signed-off-by: K. Y. Srinivasan
---
drivers/hv/vmbus_drv.c |4 ++--
1 files changed, 2 insertions(+), 2 deletions(-)
dif
From: K. Y. Srinivasan
WS2016 has introduced a new protocol for conditioning guest clock.
Support this new protocol.
Alex Ng (3):
Drivers: hv: utils: Rename version definitions to reflect protocol
version.
Drivers: hv: utils: Use TimeSync samples to adjust the clock after
boot.
Dri
From: Alex Ng
This enables support for more accurate TimeSync v4 samples when hosted
under Windows Server 2016 and newer hosts.
The new time samples include a "vmreferencetime" field that represents
the guest's TSC value when the host generated its time sample. This value
lets the guest calculat
From: Alex Ng
Different Windows host versions may reuse the same protocol version when
negotiating the TimeSync, Shutdown, and Heartbeat protocols. We should only
refer to the protocol version to avoid conflating the two concepts.
Signed-off-by: Alex Ng
Signed-off-by: K. Y. Srinivasan
---
dri
From: Alex Ng
Only the first 50 samples after boot were being used to discipline the
clock. After the first 50 samples, any samples from the host were ignored
and the guest clock would eventually drift from the host clock.
This patch allows TimeSync-enabled guests to continuously synchronize the
From: Vivek yadav
Under stress, we have seen allocation failure in time synch code. Avoid
this dynamic allocation.
Signed-off-by: Vivek Yadav
Signed-off-by: K. Y. Srinivasan
---
drivers/hv/hv_util.c | 39 ---
1 files changed, 28 insertions(+), 11 deletion
From: K. Y. Srinivasan
Use IDs that persist across reboots as vmbus device IDs.
Vitaly Kuznetsov (2):
Drivers: hv: make VMBus bus ids persistent
Drivers: hv: get rid of id in struct vmbus_channel
drivers/hv/channel_mgmt.c |2 --
drivers/hv/vmbus_drv.c|4 ++--
include/linux/hype
From: Vivek yadav
Under stress, we have seen allocation failure in time synch code. Avoid
this dynamic allocation.
Signed-off-by: Vivek Yadav
Signed-off-by: K. Y. Srinivasan
---
drivers/hv/hv_util.c | 39 ---
1 files changed, 28 insertions(+), 11 deletion
From: Vitaly Kuznetsov
Some tools use bus ids to identify devices and they count on the fact
that these ids are persistent across reboot. This may be not true for
VMBus as we use auto incremented counter from alloc_channel() as such
id. Switch to using if_instance from channel offer, this id is s
From: Vitaly Kuznetsov
The auto incremented counter is not being used anymore, get rid of it.
Signed-off-by: Vitaly Kuznetsov
Signed-off-by: K. Y. Srinivasan
---
drivers/hv/channel_mgmt.c |2 --
include/linux/hyperv.h|3 ---
2 files changed, 0 insertions(+), 5 deletions(-)
diff -
From: Long Li
The host keeps sending heartbeat packets independent of the
guest responding to them. Even though we respond to the heartbeat messages at
interrupt level, we can have situations where there maybe multiple heartbeat
messages pending that have not been responded to. For instance this
From: Long Li
The host keeps sending heartbeat packets independent of the
guest responding to them. Even though we respond to the heartbeat messages at
interrupt level, we can have situations where there maybe multiple heartbeat
messages pending that have not been responded to. For instance this
From: K. Y. Srinivasan
Some miscellaneous fixes and enhancements.
Alex Ng (6):
Drivers: hv: utils: Fix the mapping between host version and protocol
to use
Drivers: hv: balloon: Disable hot add when CONFIG_MEMORY_HOTPLUG is
not set
Drivers: hv: balloon: Add logging for dynamic memo
From: Alex Ng
If the guest does not support memory hotplugging, it should respond to
the host with zero pages added and successful result code. This signals
to the host that hotplugging is not supported and the host will avoid
sending future hot-add requests.
Signed-off-by: Alex Ng
Signed-off-b
the performance otherwise.
+*
+* KYS: Oct. 30, 2016:
+* It looks like Windows hosts have logic to deal with DOS attacks that
+* can be triggered if it receives interrupts when it is not expecting
+* the interrupt. The host expects interrupts only when the ring
+
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