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 OPEN_C
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 removing
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 uns
From: Dexuan Cui
We can concurrently try to open the same sub-channel from 2 paths:
path #1: vmbus_onoffer() -> vmbus_process_offer() -> handle_sc_creation().
path #2: storvsc_probe() -> storvsc_connect_to_vsp() ->
-> storvsc_channel_init() -> handle_multichannel_storage() ->
-
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 a/d
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 a
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
t
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 dev
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 dev
From: Haiyang Zhang
The correct module name is hv_utils. This patch corrects
the name in struct hv_driver util_drv.
Signed-off-by: Haiyang Zhang
Signed-off-by: K. Y. Srinivasan
---
drivers/hv/hv_util.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/hv/hv_util.c b/
From: Dexuan Cui
I didn't find a real issue. Let's just make it consistent with the
next "case REG_U64:" where %llu is used.
Signed-off-by: Dexuan Cui
Cc: K. Y. Srinivasan
Cc: Haiyang Zhang
Cc: Stephen Hemminger
Signed-off-by: K. Y. Srinivasan
---
drivers/hv/hv_kvp.c | 2 +-
1 file changed
From: "K. Y. Srinivasan"
Currently we are replicating state in struct hv_context that is unnecessary -
this state can be retrieved from the hypervisor. Furthermore, this is a per-cpu
state that is being maintained as a global state in struct hv_context.
Get rid of this state in struct hv_context.
From: Dexuan Cui
In kvp_send_key(), we do need call process_ib_ipinfo() if
message->kvp_hdr.operation is KVP_OP_GET_IP_INFO, because it turns out
the userland hv_kvp_daemon needs the info of operation, adapter_id and
addr_family. With the incorrect fc62c3b1977d, the host can't get the
VM's IP via
From: Dexuan Cui
The patch fixes:
hv_kvp_daemon.c: In function 'kvp_set_ip_info':
hv_kvp_daemon.c:1305:2: note: 'snprintf' output between 41 and 4136 bytes
into a destination of size 4096
The "(unsigned int)str_len" is to avoid:
hv_kvp_daemon.c:1309:30: warning: comparison of integer expressio
From: "K. Y. Srinivasan"
Miscellaneous fixes.
V2: Addressed comments from Greg.
Dexuan Cui (3):
Drivers: hv: kvp: Fix the recent regression caused by incorrect
clean-up
Drivers: hv: kvp: Use %u to print U32
Tools: hv: kvp: Fix a warning of buffer overflow with gcc 8.0.1
Haiyang Zhang
From: "K. Y. Srinivasan"
Currently we are replicating state in struct hv_context that is unnecessary -
this state can be retrieved from the hypervisor. Furthermore, this is a per-cpu
state that is being maintained as a global state in struct hv_context.
Get rid of this state in struct hv_context.
From: Dexuan Cui
I didn't find a real issue. Let's just make it consistent with the
next "case REG_U64:" where %llu is used.
Signed-off-by: Dexuan Cui
Cc: K. Y. Srinivasan
Cc: Haiyang Zhang
Cc: Stephen Hemminger
Cc:
Signed-off-by: K. Y. Srinivasan
---
drivers/hv/hv_kvp.c | 2 +-
1 file ch
From: Dexuan Cui
The patch fixes:
hv_kvp_daemon.c: In function 'kvp_set_ip_info':
hv_kvp_daemon.c:1305:2: note: 'snprintf' output between 41 and 4136 bytes
into a destination of size 4096
Signed-off-by: Dexuan Cui
Cc: K. Y. Srinivasan
Cc: Haiyang Zhang
Cc: Stephen Hemminger
Cc:
Signed-off-
From: Dexuan Cui
In kvp_send_key(), we do need call process_ib_ipinfo() if
message->kvp_hdr.operation is KVP_OP_GET_IP_INFO, because it turns out
the userland hv_kvp_daemon needs the info of operation, adapter_id and
addr_family. With the incorrect fc62c3b1977d, the host can't get the
VM's IP via
From: Haiyang Zhang
The correct module name is hv_utils. This patch corrects
the name in struct hv_driver util_drv.
Signed-off-by: Haiyang Zhang
Signed-off-by: K. Y. Srinivasan
---
drivers/hv/hv_util.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/hv/hv_util.c b/
From: "K. Y. Srinivasan"
Miscellaneous fixes.
Dexuan Cui (3):
Drivers: hv: kvp: Fix the recent regression caused by incorrect
clean-up
Drivers: hv: kvp: Use %u to print U32
Tools: hv: kvp: Fix a warning of buffer overflow with gcc 8.0.1
Haiyang Zhang (1):
hv_utils: update name in st
From: Dexuan Cui
No functional change.
Added descriptions for some parameters.
Fixed some typos.
Removed some out-of-date comments.
Signed-off-by: Dexuan Cui
Cc: Jonathan Corbet
Cc: linux-...@vger.kernel.org
Cc: K. Y. Srinivasan
Cc: Haiyang Zhang
Cc: Stephen Hemminger
Signed-off-by: K. Y.
From: Dexuan Cui
We don't need to call process_ib_ipinfo() if message->kvp_hdr.operation is
KVP_OP_GET_IP_INFO in kvp_send_key(), because here we just need to pass on
the op code from the host to the userspace; when the userspace returns
the info requested by the host, we pass the info on to the
From: Dexuan Cui
A cpumask structure on the stack can cause a warning with
CONFIG_NR_CPUS=8192 (e.g. Ubuntu 16.04 and 18.04 use this):
drivers/hv//channel_mgmt.c: In function ‘init_vp_index’:
drivers/hv//channel_mgmt.c:702:1: warning: the frame size of 1032 bytes
is larger than 1024 bytes [-Wf
From: Dexuan Cui
No functional change.
Signed-off-by: Dexuan Cui
Cc: K. Y. Srinivasan
Cc: Haiyang Zhang
Cc: Stephen Hemminger
Signed-off-by: K. Y. Srinivasan
---
drivers/hv/hv_kvp.c | 8
1 file changed, 4 insertions(+), 4 deletions(-)
diff --git a/drivers/hv/hv_kvp.c b/drivers/hv
From: "K. Y. Srinivasan"
Miscellaneous fixes.
Dexuan Cui (4):
Drivers: hv: vmbus: Fix the descriptions of some function parameters
Drivers: hv: kvp: Fix the indentation of some "break" statements
Drivers: hv: kvp: Fix two "this statement may fall through" warnings
Drivers: hv: vmbus: Use
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 m
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
---
tools/hv/
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 +---
tools/hv/hv_fcopy_daemon.
From: Stephen Hemminger
For unsupported device types, the vmbus channel ringbuffer is never
initialized, and therefore reading the sysfs files will return garbage
or cause a kernel OOPS.
Fixes: c2e5df616e1a ("vmbus: add per-channel sysfs info")
Signed-off-by: Stephen Hemminger
Signed-off-by: K
From: Stephen Hemminger
DEBUG is leftover from the development phase, remove it.
Signed-off-by: Stephen Hemminger
Signed-off-by: K. Y. Srinivasan
---
drivers/uio/uio_hv_generic.c | 1 -
1 file changed, 1 deletion(-)
diff --git a/drivers/uio/uio_hv_generic.c b/drivers/uio/uio_hv_generic.c
ind
From: "K. Y. Srinivasan"
Fix a bug in the key delete code - the num_records range
from 0 to num_records-1.
Signed-off-by: K. Y. Srinivasan
Reported-by: David Binderman
Cc:
---
tools/hv/hv_kvp_daemon.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/tools/hv/hv_kvp_daemon.
From: Michael Kelley
If hv_synic_alloc() errors out, the state of the per-cpu context
for some CPUs is unknown since the zero'ing is done as each
CPU is iterated over. In such case, hv_synic_cleanup() may try to
free memory based on uninitialized values. Fix this by zero'ing
the per-cpu context
From: Stephen Hemminger
Add support for overriding the default driver for a VMBus device
in the same way that it can be done for PCI devices. This patch
adds the /sys/bus/vmbus/devices/.../driver_override file
and the logic for matching.
This is used by driverctl tool to do driver override.
http
From: Stephen Hemminger
When using DPDK there is significant performance boost by using
the largest possible send and receive buffer area.
Unfortunately, with UIO model there is not a good way to configure
this at run time. But it is okay to have a bigger buffer available
even if application onl
From: "K. Y. Srinivasan"
Miscellaneous fixes/enhancements.
K. Y. Srinivasan (1):
Tools: hv: Fix a bug in the key delete code
Michael Kelley (1):
Drivers: hv: vmbus: Fix synic per-cpu context initialization
Stephen Hemminger (3):
vmbus: add driver_override support
uio_hv_generic: increa
From: Michael Kelley
clk_evt memory is not being freed when the synic is shutdown
or when there is an allocation error. Add the appropriate
kfree() call, along with a comment to clarify how the memory
gets freed after an allocation error. Make the free path
consistent by removing checks for NUL
From: Michael Kelley
slow_virt_to_phys() is only implemented for arch/x86.
Remove its use in arch independent Hyper-V drivers, and
replace with test for vmalloc() address followed by
appropriate v-to-p function. This follows the typical
pattern of other drivers and avoids the need to implement
sl
From: Dexuan Cui
Before setting channel->rescind in vmbus_rescind_cleanup(), we should make
sure the channel callback won't run any more, otherwise a high-level
driver like pci_hyperv, which may be infinitely waiting for the host VSP's
response and notices the channel has been rescinded, can't sa
From: "K. Y. Srinivasan"
Miscellaneous fixes.
Dexuan Cui (1):
Drivers: hv: vmbus: Reset the channel callback in
vmbus_onoffer_rescind()
Michael Kelley (2):
Drivers: hv: vmbus: Remove use of slow_virt_to_phys()
Drivers: hv: vmbus: Cleanup synic memory free path
drivers/hv/channel.c
From: Stephen Hemminger
Being able to find the numa_node for a device is useful for userspace
drivers (DPDK) and also for diagnosing performance issues. This makes
vmbus similar to pci.
Signed-off-by: Stephen Hemminger
Signed-off-by: K. Y. Srinivasan
---
Documentation/ABI/stable/sysfs-bus-vm
From: Sunil Muthuswamy
The check to free the Hyper-V control table header was reversed. This
fixes it.
Fixes: 81b18bce48af ("Drivers: HV: Send one page worth of kmsg dump over
Hyper-V during panic")
Signed-off-by: Sunil Muthuswamy
Signed-off-by: K. Y. Srinivasan
---
drivers/hv/vmbus_drv.c |
From: Sunil Muthuswamy
Get rid of ISA specific code from vmus_drv.c which is common code.
Fixes: 81b18bce48af ("Drivers: HV: Send one page worth of kmsg dump over
Hyper-V during panic")
Signed-off-by: Sunil Muthuswamy
Signed-off-by: K. Y. Srinivasan
---
arch/x86/include/asm/mshyperv.h | 3 +
From: Sunil Muthuswamy
The code to support panic control message was checking the return was
checking the return value from kmsg_dump_get_buffer as error value, which
is not what the routine returns. This fixes it.
Fixes: 81b18bce48af ("Drivers: HV: Send one page worth of kmsg dump over
Hyper-V
From: "K. Y. Srinivasan"
Miscellaneous fixes/enhancements
Stephen Hemminger (1):
Drivers: hv: vmbus: add numa_node to sysfs
Sunil Muthuswamy (3):
Drivers: hv: vmus: Fix the check for return value from kmsg get dump
buffer
Drivers: hv: vmbus: Fix the issue with freeing up hv_ctl_table_
From: "K. Y. Srinivasan"
When the mapping betwween the Linux notion of CPU ID
to the hypervisor's notion of CPU ID is not initialized,
we should fall back on the non-enligghtened path for IPI.
A merge error introduced this bug; fix it.
Fixes: 1268ed0c474a ("Merge branch 'x86/urgent' into x86/hyp
From: Sunil Muthuswamy
In the VM mode on Hyper-V, currently, when the kernel panics, an error
code and few register values are populated in an MSR and the Hypervisor
notified. This information is collected on the host. The amount of
information currently collected is found to be limited and not v
From: "K. Y. Srinivasan"
The IPI hypercalls depend on being able to map the Linux notion of CPU ID
to the hypervisor's notion of the CPU ID. The array hv_vp_index[] provides
this mapping. Code for populating this array depends on the IPI functionality.
Break this circular dependency.
Fixes: 68bb
From: "K. Y. Srinivasan"
The IPI hypercalls depend on being able to map the Linux notion of CPU ID
to the hypervisor's notion of the CPU ID. The array hv_vp_index[] provides
this mapping. Code for populating this array depends on the IPI functionality.
Break this circular dependency.
Fixes: 68bb
From: Dexuan Cui
I didn't really hit a real bug, but just happened to spot the bug:
we have decreased the counter at the beginning of vmbus_process_offer(),
so we mustn't decrease it again.
Fixes: 6f3d791f3006 ("Drivers: hv: vmbus: Fix rescind handling issues")
Signed-off-by: Dexuan Cui
Cc: sta
From: Michael Kelley
Add comments describing intricacies of Hyper-V ring buffer
signaling code. This information is not in Hyper-V public
documents, so include here to capture the knowledge for
future coders.
There are no code changes in this commit.
Signed-off-by: Michael Kelley
Signed-off-b
From: Olaf Hering
Python3 changed the way how 'print' works.
Adjust the code to a syntax that is understood by python2 and python3.
Signed-off-by: Olaf Hering
Acked-by: Dexuan Cui
Signed-off-by: K. Y. Srinivasan
---
tools/hv/lsvmbus | 12 ++--
1 file changed, 6 insertions(+), 6 delet
From: Michael Kelley
In architecture independent code for manipulating Hyper-V synthetic timers
and synthetic interrupts, pass in an ordinal number identifying the timer
or interrupt, rather than an actual MSR register address. Then in
x86/x64 specific code, map the ordinal number to the appropr
From: Arjan van de Ven
Recent kernels support asynchronous probing; most hyperv drivers
can be probed async easily so set the required flag for this.
Signed-off-by: Arjan van de Ven
Signed-off-by: Stephen Hemminger
Signed-off-by: K. Y. Srinivasan
---
drivers/hid/hid-hyperv.c | 3
From: Vitaly Kuznetsov
Commit ea81fdf0981d ("Tools: hv: vss: Skip freezing filesystems backed by
loop") added skip for filesystems backed by loop device. However, it seems
the detection of such cases is incomplete.
It was found that with 'devicemapper' storage driver docker creates the
following
From: Michael Kelley
The Hyper-V feature and hint flags in hyperv-tlfs.h are all defined
with the string "X64" in the name. Some of these flags are indeed
x86/x64 specific, but others are not. For the ones that are used
in architecture independent Hyper-V driver code, or will be used in
the upc
From: Michael Kelley
Add standard interrupt handler annotations to
hyperv_vector_handler(). This does not fix any observed
bug, but avoids potential removal of the code by link
time optimization and makes it consistent with
hv_stimer0_vector_handler in the same source file.
Suggested-by: Thomas
From: "K. Y. Srinivasan"
Some miscellaneous fixes/improvements.
Arjan van de Ven (1):
use the new async probing feature for the hyperv drivers
Dexuan Cui (1):
Drivers: hv: vmbus: Fix the offer_in_progress in vmbus_process_offer()
Michael Kelley (4):
x86/hyperv: Add interrupt handler ann
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
arch/x86/hyperv/hv_in
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 +-
arch/x86/include/asm/
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 +++
arch/x86/include/asm/hyper
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 a/arch/x86/hyperv/mmu
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 enlightenments
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 suppo
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 ("vmbus:
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"
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 insertio
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
in
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"
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"
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: Hyper-
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"
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: Consol
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 inser
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 changed
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 +++
arc
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 ++-
a
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 b/drivers/hv/hv_trace.c
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 b/drivers/h
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
--- a/drivers/
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 He
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 Kc
From: Michael Kelley
Fix bugs in signaling the Hyper-V host when freeing space in the
host->guest ring buffer:
1. The interrupt_mask must not be used to determine whether to signal
on the host->guest ring buffer
2. The ring buffer write_index must be read (via hv_get_bytes_to_write)
*after
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: 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: 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: "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: 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: 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: 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
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: 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
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: "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: 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
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