From: Weibing Zhang
hv_kvp_daemon.c: In function .kvp_mac_to_if_name.:
hv_kvp_daemon.c:705:2: warning: format not a string literal and no format
arguments [-Wformat-security]
snprintf(dev_id, sizeof(dev_id), kvp_net_dir);
^
hv_kvp_daemon.c:705:2: warning: format not a string literal and no f
From: Alex Ng
Balloon driver was only printing the size of the info blob and not the
actual content. This fixes it so that the info blob (max page count as
configured in Hyper-V) is printed out.
Signed-off-by: Alex Ng
Signed-off-by: K. Y. Srinivasan
---
drivers/hv/hv_balloon.c |9 +++-
From: Alex Ng
Increase the timeout of backup operations. When system is under I/O load,
it needs more time to freeze. These timeout values should also match the
host timeout values more closely.
Signed-off-by: Alex Ng
Signed-off-by: K. Y. Srinivasan
---
drivers/hv/hv_snapshot.c |8 ++-
From: Weibing Zhang
Remove unnecessary header files and netlink related code as the daemons
do not use netlink to communicate with the kernel now.
Signed-off-by: Weibing Zhang
Signed-off-by: K. Y. Srinivasan
---
tools/hv/hv_fcopy_daemon.c |7 ---
tools/hv/hv_kvp_daemon.c |7
From: Alex Ng
Added logging to help troubleshoot common ballooning, hot add,
and versioning issues.
Signed-off-by: Alex Ng
Signed-off-by: K. Y. Srinivasan
---
drivers/hv/hv_balloon.c | 31 ---
1 files changed, 28 insertions(+), 3 deletions(-)
diff --git a/driver
From: K. Y. Srinivasan
Signal the host when we determine the host is to be signaled -
on th read path. The currrent code determines the need to signal in the
ringbuffer code and actually issues the signal elsewhere. This can result
in the host viewing this interrupt as spurious since the host may
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()
The first version of this commit was reverted (65a532f3d50a) to deal wi
From: Vitaly Kuznetsov
I discovered that at least WS2016TP5 host has 60 seconds timeout for the
ICMSGTYPE_NEGOTIATE message so we need to lower guest's timeout a little
bit to make sure we always respond in time. Let's make it 55 seconds.
Signed-off-by: Vitaly Kuznetsov
Signed-off-by: K. Y. Sri
From: Stephen Hemminger
In commit 9a56e5d6a0ba ("Drivers: hv: make VMBus bus ids persistent")
the name of vmbus devices in sysfs changed to be (in 4.9-rc1):
/sys/bus/vmbus/vmbus-6aebe374-9ba0-11e6-933c-00259086b36b
The prefix ("vmbus-") is redundant and differs from how PCI is
represented in s
From: Alex Ng
We should intentionally declare the protocols to use for every known host
and default to using the latest protocol if the host is unknown or new.
Signed-off-by: Alex Ng
Signed-off-by: K. Y. Srinivasan
---
drivers/hv/hv_util.c |9 ++---
1 files changed, 6 insertions(+), 3
ritten anything. This is a rare
-* enough condition that it should not matter.
-* NOTE: in this case, the hvsock channel is an exception, because
-* it looks the host side's hvsock implementation has a throttling
-* mechanism which can hurt the performance otherwise.
-
From: Alex Ng
Adding log messages to help troubleshoot error cases and transaction
handling.
Signed-off-by: Alex Ng
Signed-off-by: K. Y. Srinivasan
---
drivers/hv/hv_snapshot.c | 25 +++--
1 files changed, 19 insertions(+), 6 deletions(-)
diff --git a/drivers/hv/hv_snap
From: Weibing Zhang
The link flag pthread is not needed.
Signed-off-by: Weibing Zhang
Signed-off-by: K. Y. Srinivasan
---
tools/hv/Makefile |3 +--
1 files changed, 1 insertions(+), 2 deletions(-)
diff --git a/tools/hv/Makefile b/tools/hv/Makefile
index a8c4644..0d1e61b 100644
--- a/tool
From: Stephen Hemminger
In commit 9a56e5d6a0ba ("Drivers: hv: make VMBus bus ids persistent")
the name of vmbus devices in sysfs changed to be (in 4.9-rc1):
/sys/bus/vmbus/vmbus-6aebe374-9ba0-11e6-933c-00259086b36b
The prefix ("vmbus-") is redundant and differs from how PCI is
represented in s
From: K. Y. Srinivasan
Some miscellaneous fixes and enhancements.
V2: Fixed a build issue reported by Greg. Only Patch # 13 is affected.
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_HOT
From: Weibing Zhang
hv_kvp_daemon.c: In function .kvp_mac_to_if_name.:
hv_kvp_daemon.c:705:2: warning: format not a string literal and no format
arguments [-Wformat-security]
snprintf(dev_id, sizeof(dev_id), kvp_net_dir);
^
hv_kvp_daemon.c:705:2: warning: format not a string literal and no f
From: Alex Ng
Balloon driver was only printing the size of the info blob and not the
actual content. This fixes it so that the info blob (max page count as
configured in Hyper-V) is printed out.
Signed-off-by: Alex Ng
Signed-off-by: K. Y. Srinivasan
---
drivers/hv/hv_balloon.c |9 +++-
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
+
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()
The first version of this commit was reverted (65a532f3d50a) to deal wi
his is a rare
-* enough condition that it should not matter.
-* NOTE: in this case, the hvsock channel is an exception, because
-* it looks the host side's hvsock implementation has a throttling
-* mechanism which can hurt the performance otherwise.
-
From: Alex Ng
Added logging to help troubleshoot common ballooning, hot add,
and versioning issues.
Signed-off-by: Alex Ng
Signed-off-by: K. Y. Srinivasan
---
drivers/hv/hv_balloon.c | 31 ---
1 files changed, 28 insertions(+), 3 deletions(-)
diff --git a/driver
From: Weibing Zhang
Remove unnecessary header files and netlink related code as the daemons
do not use netlink to communicate with the kernel now.
Signed-off-by: Weibing Zhang
Signed-off-by: K. Y. Srinivasan
---
tools/hv/hv_fcopy_daemon.c |7 ---
tools/hv/hv_kvp_daemon.c |7
From: Alex Ng
Adding log messages to help troubleshoot error cases and transaction
handling.
Signed-off-by: Alex Ng
Signed-off-by: K. Y. Srinivasan
---
drivers/hv/hv_snapshot.c | 25 +++--
1 files changed, 19 insertions(+), 6 deletions(-)
diff --git a/drivers/hv/hv_snap
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
From: Vitaly Kuznetsov
I discovered that at least WS2016TP5 host has 60 seconds timeout for the
ICMSGTYPE_NEGOTIATE message so we need to lower guest's timeout a little
bit to make sure we always respond in time. Let's make it 55 seconds.
Signed-off-by: Vitaly Kuznetsov
Signed-off-by: K. Y. Sri
From: K. Y. Srinivasan
Signal the host when we determine the host is to be signaled -
on th read path. The currrent code determines the need to signal in the
ringbuffer code and actually issues the signal elsewhere. This can result
in the host viewing this interrupt as spurious since the host may
From: Alex Ng
Increase the timeout of backup operations. When system is under I/O load,
it needs more time to freeze. These timeout values should also match the
host timeout values more closely.
Signed-off-by: Alex Ng
Signed-off-by: K. Y. Srinivasan
---
drivers/hv/hv_snapshot.c |8 ++-
From: Weibing Zhang
The link flag pthread is not needed.
Signed-off-by: Weibing Zhang
Signed-off-by: K. Y. Srinivasan
---
tools/hv/Makefile |3 +--
1 files changed, 1 insertions(+), 2 deletions(-)
diff --git a/tools/hv/Makefile b/tools/hv/Makefile
index a8c4644..0d1e61b 100644
--- a/tool
From: Alex Ng
We should intentionally declare the protocols to use for every known host
and default to using the latest protocol if the host is unknown or new.
Signed-off-by: Alex Ng
Signed-off-by: K. Y. Srinivasan
---
drivers/hv/hv_util.c |9 ++---
1 files changed, 6 insertions(+), 3
From: K. Y. Srinivasan
Some miscellaneous fixes and enhancements.
V2: Fixed a build issue reported by Greg. Only Patch # 13 is affected.
V3: Address Stephen's comment. Only patch 3 is affected.
Alex Ng (6):
Drivers: hv: utils: Fix the mapping between host version and protocol
to use
Dri
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
+
From: Weibing Zhang
Remove unnecessary header files and netlink related code as the daemons
do not use netlink to communicate with the kernel now.
Signed-off-by: Weibing Zhang
Signed-off-by: K. Y. Srinivasan
---
tools/hv/hv_fcopy_daemon.c |7 ---
tools/hv/hv_kvp_daemon.c |7
From: Vitaly Kuznetsov
I discovered that at least WS2016TP5 host has 60 seconds timeout for the
ICMSGTYPE_NEGOTIATE message so we need to lower guest's timeout a little
bit to make sure we always respond in time. Let's make it 55 seconds.
Signed-off-by: Vitaly Kuznetsov
Signed-off-by: K. Y. Sri
From: Weibing Zhang
The link flag pthread is not needed.
Signed-off-by: Weibing Zhang
Signed-off-by: K. Y. Srinivasan
---
tools/hv/Makefile |3 +--
1 files changed, 1 insertions(+), 2 deletions(-)
diff --git a/tools/hv/Makefile b/tools/hv/Makefile
index a8c4644..0d1e61b 100644
--- a/tool
his is a rare
-* enough condition that it should not matter.
-* NOTE: in this case, the hvsock channel is an exception, because
-* it looks the host side's hvsock implementation has a throttling
-* mechanism which can hurt the performance otherwise.
-
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()
The first version of this commit was reverted (65a532f3d50a) to deal wi
From: Alex Ng
We should intentionally declare the protocols to use for every known host
and default to using the latest protocol if the host is unknown or new.
Signed-off-by: Alex Ng
Signed-off-by: K. Y. Srinivasan
---
V3: Addressed Stephen's comment
drivers/hv/hv_util.c |9 +
From: K. Y. Srinivasan
Signal the host when we determine the host is to be signaled -
on th read path. The currrent code determines the need to signal in the
ringbuffer code and actually issues the signal elsewhere. This can result
in the host viewing this interrupt as spurious since the host may
From: Alex Ng
Increase the timeout of backup operations. When system is under I/O load,
it needs more time to freeze. These timeout values should also match the
host timeout values more closely.
Signed-off-by: Alex Ng
Signed-off-by: K. Y. Srinivasan
---
drivers/hv/hv_snapshot.c |8 ++-
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
From: Weibing Zhang
hv_kvp_daemon.c: In function .kvp_mac_to_if_name.:
hv_kvp_daemon.c:705:2: warning: format not a string literal and no format
arguments [-Wformat-security]
snprintf(dev_id, sizeof(dev_id), kvp_net_dir);
^
hv_kvp_daemon.c:705:2: warning: format not a string literal and no f
From: Alex Ng
Added logging to help troubleshoot common ballooning, hot add,
and versioning issues.
Signed-off-by: Alex Ng
Signed-off-by: K. Y. Srinivasan
---
drivers/hv/hv_balloon.c | 31 ---
1 files changed, 28 insertions(+), 3 deletions(-)
diff --git a/driver
From: Alex Ng
Adding log messages to help troubleshoot error cases and transaction
handling.
Signed-off-by: Alex Ng
Signed-off-by: K. Y. Srinivasan
---
drivers/hv/hv_snapshot.c | 25 +++--
1 files changed, 19 insertions(+), 6 deletions(-)
diff --git a/drivers/hv/hv_snap
From: Alex Ng
Balloon driver was only printing the size of the info blob and not the
actual content. This fixes it so that the info blob (max page count as
configured in Hyper-V) is printed out.
Signed-off-by: Alex Ng
Signed-off-by: K. Y. Srinivasan
---
drivers/hv/hv_balloon.c |9 +++-
From: K. Y. Srinivasan
Hyper-V supports hypercalls for doing local and remote TLB flushing and
gives its guests hints when using hypercall is preferred. While doing
hypercalls for local TLB flushes is probably not practical (and is not
being suggested by modern Hyper-V versions) remote TLB flush
From: Vitaly Kuznetsov
We have only three call sites for hv_do_hypercall() and we're going to
change HVCALL_SIGNAL_EVENT to doing fast hypercall so we can inline this
function for optimization.
Hyper-V top level functional specification states that r9-r11 registers
and flags may be clobbered by
From: Vitaly Kuznetsov
Rep hypercalls are normal hypercalls which perform multiple actions at
once. Hyper-V guarantees to return exectution to the caller in not more
than 50us and the caller needs to use hypercall continuation. Touch NMI
watchdog between hypercall invocations.
This is going to b
From: Vitaly Kuznetsov
Code is arch/x86/hyperv/ is only needed when CONFIG_HYPERV is set, the
'basic' support and detection lives in arch/x86/kernel/cpu/mshyperv.c
which is included when CONFIG_HYPERVISOR_GUEST is set.
Signed-off-by: Vitaly Kuznetsov
Reviewed-by: Andy Shevchenko
Signed-off-by:
From: Vitaly Kuznetsov
Max virtual processor will be needed for 'extended' hypercalls supporting
more than 64 vCPUs. While on it, unify on 'Hyper-V' in mshyperv.c as we
currently have a mix, report acquired misc features as well.
Signed-off-by: Vitaly Kuznetsov
Reviewed-by: Andy Shevchenko
Sig
From: Vitaly Kuznetsov
Hyper-V supports 'fast' hypercalls when all parameters are passed through
registers. Implement an inline version of a simpliest of these calls:
hypercall with one 8-byte input and no output.
Signed-off-by: Vitaly Kuznetsov
Reviewed-by: Andy Shevchenko
Signed-off-by: K. Y
From: Vitaly Kuznetsov
We need to pass only 8 bytes of input for HvSignalEvent which makes it a
perfect fit for fast hypercall. hv_input_signal_event_buffer is not needed
any more and hv_input_signal_event is converted to union for convenience.
Signed-off-by: Vitaly Kuznetsov
Reviewed-by: Andy
From: Vitaly Kuznetsov
Add Hyper-V tracing subsystem and trace hyperv_mmu_flush_tlb_others().
Tracing is done the same way we do xen_mmu_flush_tlb_others().
Signed-off-by: Vitaly Kuznetsov
Signed-off-by: K. Y. Srinivasan
---
MAINTAINERS |1 +
arch/x86/hyperv/mmu.c
From: Vitaly Kuznetsov
Hyper-V hosts may support more than 64 vCPUs, we need to use
HVCALL_FLUSH_VIRTUAL_ADDRESS_SPACE_EX/LIST_EX hypercalls in this
case.
Signed-off-by: Vitaly Kuznetsov
Signed-off-by: K. Y. Srinivasan
---
arch/x86/hyperv/mmu.c | 130
From: Vitaly Kuznetsov
To support implementing remote TLB flushing on Hyper-V with a hypercall
we need to make vp_index available outside of vmbus module. Rename and
globalize.
Signed-off-by: Vitaly Kuznetsov
Reviewed-by: Andy Shevchenko
Signed-off-by: K. Y. Srinivasan
---
arch/x86/hyperv/hv
From: Vitaly Kuznetsov
Hyper-V host can suggest us to use hypercall for doing remote TLB flush,
this is supposed to work faster than IPIs.
Implementation details: to do HvFlushVirtualAddress{Space,List} hypercalls
we need to put the input somewhere in memory and we don't really want to
have memo
From: K. Y. Srinivasan
This removes unused bits from vmbus internals, and also does some
optimization to the host signalling part of ring buffer logic.
Stephen Hemminger (6):
vmbus: simplify hv_ringbuffer_read
vmbus: drop unused ring_buffer_info elements
vmbus: refactor hv_signal_on_read
From: K. Y. Srinivasan
This patch set removes unused bits from vmbus internals, and also does some
optimization to the host signalling part of ring buffer logic.
Stephen Hemminger (6):
vmbus: simplify hv_ringbuffer_read
vmbus: drop unused ring_buffer_info elements
vmbus: refactor hv_signal
From: Stephen Hemminger
The function hv_signal_on_read was defined in hyperv.h and
only used in one place in ring_buffer code. Clearer to just
move it inline there.
Signed-off-by: Stephen Hemminger
Signed-off-by: K. Y. Srinivasan
---
drivers/hv/ring_buffer.c | 32 +++
From: Stephen Hemminger
Don't need cached read index anymore now that packet iterator
is used. The iterator has the original read index until the
visible read_index is updated.
Signed-off-by: Stephen Hemminger
Signed-off-by: K. Y. Srinivasan
---
drivers/hv/ring_buffer.c | 17 ---
From: Stephen Hemminger
Don't signal host if it has disabled interrupts for that
ring buffer. Check the feature bit to see if host supports
pending send size flag.
Signed-off-by: Stephen Hemminger
Signed-off-by: K. Y. Srinivasan
---
drivers/hv/ring_buffer.c | 27 +++
From: Stephen Hemminger
The elements ring_data_start_offset and priv_write_index
are not used.
Signed-off-by: Stephen Hemminger
Signed-off-by: K. Y. Srinivasan
---
include/linux/hyperv.h |2 --
1 files changed, 0 insertions(+), 2 deletions(-)
diff --git a/include/linux/hyperv.h b/include
From: Stephen Hemminger
With new iterator functions (and the double mapping) the ring buffer
read function can be greatly simplified.
Signed-off-by: Stephen Hemminger
Signed-off-by: K. Y. Srinivasan
---
drivers/hv/ring_buffer.c | 118 +++---
1 files ch
From: Stephen Hemminger
When iterating over incoming ring elements from the host, prefetch
the next descriptor so that it is cache hot.
Signed-off-by: Stephen Hemminger
Signed-off-by: K. Y. Srinivasan
---
drivers/hv/ring_buffer.c |7 ++-
1 files changed, 6 insertions(+), 1 deletions(-
From: K. Y. Srinivasan
Miscellaneous fixes.
Alex Ng (1):
Tools: hv: vss: Skip freezing filesystems backed by loop
Stephen Hemminger (1):
vmbus: re-enable channel tasklet
drivers/hv/channel.c |2 ++
tools/hv/hv_vss_daemon.c |7 +++
2 files changed, 9 insertions(+), 0 deleti
From: Alex Ng
Skip loop devices from the freeze/thaw operation.
Signed-off-by: Alex Ng
Signed-off-by: Vyronas Tsingaras
Signed-off-by: K. Y. Srinivasan
---
tools/hv/hv_vss_daemon.c |7 +++
1 files changed, 7 insertions(+), 0 deletions(-)
diff --git a/tools/hv/hv_vss_daemon.c b/tools
From: Stephen Hemminger
This problem shows up in 4.11 when netvsc driver is removed and reloaded.
The problem is that the channel is closed during module removal and the
tasklet for processing responses is disabled. When module is reloaded
the channel is reopened but the tasklet is marked as disa
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 startu
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 dri
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 in
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 a
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 N
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 a/tools/hv/hv_kvp_daemon
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, 1
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 pas
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 blocked
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 b/arch/x86/kernel/cpu/mshype
From: "K. Y. Srinivasan"
Miscellaneous fixes.
Dexuan Cui (2):
vmbus: don't acquire the mutex in vmbus_hvsock_device_unregister()
vmbus: suppress uevents for hv_sock devices
Olaf Hering (1):
Drivers: hv: fcopy: restore correct transfer length
Stephen Hemminger (2):
vmbus: add per-channe
From: Dexuan Cui
hv_sock driver is automatically loaded when an application creates an
AF_VSOCK socket, so we don't really need to trigger uevents to the user
space udevd.
And hv_sock devices can appear and disappear frequency, e.g. 100 per
second, so triggering the udevents can cause a high cpu
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
---
Documentation/ABI/stable/sysf
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 slight
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()
-> vmbus_dev
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 re
From: Vitaly Kuznetsov
Hyper-V balloon driver makes non-trivial calculations to convert Linux's
representation of free/used memory to what Hyper-V host expects to see. Add
a tracepoint to see what's being sent and where the data comes from.
Signed-off-by: Vitaly Kuznetsov
Signed-off-by: K. Y. S
From: "K. Y. Srinivasan"
Miscellaneous fixes.
Dexuan Cui (1):
tools: hv: fix compiler warnings about major/target_fname
Haiyang Zhang (2):
tools/hv: Fix IP reporting by KVP daemon with SRIOV
hv_vmbus: Correct the stale comments regarding cpu affinity
Jia-Ju Bai (1):
hyper-v: use GFP_KE
From: Dexuan Cui
This patch fixes the below warnings with new glibc and gcc:
hv_vss_daemon.c:100:13: warning: In the GNU C Library, "major" is defined
by . For historical compatibility, it is currently
defined by as well, but we plan to remove this soon.
To use "major", include directly.
h
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
---
drivers/hv/
From: Vitaly Kuznetsov
Instead of doing pfn_to_page() and continuosly casting page to unsigned
long just cache the pfn of the page with page_to_pfn().
Signed-off-by: Vitaly Kuznetsov
Signed-off-by: K. Y. Srinivasan
---
drivers/hv/hv_balloon.c | 27 +--
1 file changed,
From: "lantianyu1...@gmail.com"
Some hv_get/set** helper functions in ring_buffer code are
only called once or not used. This patch is to clear up these codes.
Signed-off-by: Tianyu Lan
Signed-off-by: K. Y. Srinivasan
---
drivers/hv/ring_buffer.c | 49 -
From: Olaf Hering
The usage of strchr requires inclusion of string.h.
Fixes: 0c38cda64aec ("tools: hv: remove unnecessary header files and netlink
related code")
Signed-off-by: Olaf Hering
Signed-off-by: K. Y. Srinivasan
---
tools/hv/hv_fcopy_daemon.c | 1 +
1 file changed, 1 insertion(+)
d
From: Jia-Ju Bai
The kzalloc function is called with GFP_ATOMIC.
But according to driver call graph, it is not in atomic context,
namely no spinlock is held nor in an interrupt handler.
This GFP_ATOMIC is unnecessary, and replace with GFP_KERNEL.
Signed-off-by: Jia-Ju Bai
Reviewed-by: Vitaly K
From: Joe Perches
Just a trivial tyop fix.
Signed-off-by: Joe Perches
Signed-off-by: K. Y. Srinivasan
---
drivers/hv/hv.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/hv/hv.c b/drivers/hv/hv.c
index b6cacc4cccf2..31142b72f1b9 100644
--- a/drivers/hv/hv.c
+++ b/d
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 d
From: Michael Kelley
The 2016 version of Hyper-V offers the option to operate the guest VM
per-vcpu stimer's in Direct Mode, which means the timer interupts on its
own vector rather than queueing a VMbus message. Direct Mode reduces
timer processing overhead in both the hypervisor and the guest,
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 ca
From: Vitaly Kuznetsov
Our num_pages_onlined accounting is buggy:
1) In case we're offlining a memory block which was present at boot (e.g.
when there was no hotplug at all) we subtract 32k from 0 and as
num_pages_onlined is unsigned get a very big positive number.
2) Commit 6df8d9aaf3af (
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 (2
From: Jia-Ju Bai
The kzalloc function is called with GFP_ATOMIC.
But according to driver call graph, it is not in atomic context,
namely no spinlock is held nor in an interrupt handler.
This GFP_ATOMIC is unnecessary, and replace with GFP_KERNEL.
Signed-off-by: Jia-Ju Bai
Reviewed-by: Vitaly K
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 ca
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 d
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