linux-stable/drivers/hv
Michael Kelley 7a1323b5df Drivers: hv: vmbus: Fix crash handler reset of Hyper-V synic
The crash handler calls hv_synic_cleanup() to shutdown the
Hyper-V synthetic interrupt controller.  But if the CPU
that calls hv_synic_cleanup() has a VMbus channel interrupt
assigned to it (which is likely the case in smaller VM sizes),
hv_synic_cleanup() returns an error and the synthetic
interrupt controller isn't shutdown.  While the lack of
being shutdown hasn't caused a known problem, it still
should be fixed for highest reliability.

So directly call hv_synic_disable_regs() instead of
hv_synic_cleanup(), which ensures that the synic is always
shutdown.

Signed-off-by: Michael Kelley <mikelley@microsoft.com>
Reviewed-by: Vitaly Kuznetsov <vkuznets@redhat.com>
Reviewed-by: Dexuan Cui <decui@microsoft.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2019-11-21 20:10:46 -05:00
..
channel.c Drivers: hv: vmbus: Fix virt_to_hvpfn() for X86_PAE 2019-08-20 12:49:57 -04:00
channel_mgmt.c Drivers: hv: vmbus: Resume after fixing up old primary channels 2019-09-06 14:52:44 -04:00
connection.c Drivers: hv: vmbus: Remove dependencies on guest page size 2019-11-21 20:10:45 -05:00
hv.c Drivers: hv: vmbus: Break out synic enable and disable operations 2019-09-06 14:52:44 -04:00
hv_balloon.c hv_balloon: Add the support of hibernation 2019-11-21 20:10:45 -05:00
hv_debugfs.c drivers: hv: vmbus: Introduce latency testing 2019-11-21 20:10:44 -05:00
hv_fcopy.c Drivers: hv: Specify receive buffer size using Hyper-V page size 2019-11-21 20:10:45 -05:00
hv_kvp.c Drivers: hv: Specify receive buffer size using Hyper-V page size 2019-11-21 20:10:45 -05:00
hv_snapshot.c Drivers: hv: Specify receive buffer size using Hyper-V page size 2019-11-21 20:10:45 -05:00
hv_trace.c hv: add SPDX license to trace 2018-03-28 13:24:56 +02:00
hv_trace.h tools: hv: Use the correct style for SPDX License Identifier 2019-08-17 15:29:34 -04:00
hv_trace_balloon.h hv_balloon: trace post_status 2018-03-06 09:57:17 -08:00
hv_util.c Drivers: hv: util: Specify ring buffer size using Hyper-V page size 2019-11-21 20:10:45 -05:00
hv_utils_transport.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 280 2019-06-05 17:36:36 +02:00
hv_utils_transport.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 280 2019-06-05 17:36:36 +02:00
hyperv_vmbus.h drivers: hv: vmbus: Introduce latency testing 2019-11-21 20:10:44 -05:00
Kconfig clocksource/drivers/hyperv: Enable TSC page clocksource on 32bit 2019-08-23 16:59:54 +02:00
Makefile drivers: hv: vmbus: Introduce latency testing 2019-11-21 20:10:44 -05:00
ring_buffer.c drivers: hv: vmbus: Introduce latency testing 2019-11-21 20:10:44 -05:00
vmbus_drv.c Drivers: hv: vmbus: Fix crash handler reset of Hyper-V synic 2019-11-21 20:10:46 -05:00