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Dexuan Cui 015183df6d Drivers: hv: vmbus: Fix Suspend-to-Idle for Generation-2 VM 
commit 1a06d017fb3f388734ffbe5dedee6f8c3af5f2db upstream.

Before the hibernation patchset (e.g. f53335e3289f), in a Generation-2
Linux VM on Hyper-V, the user can run "echo freeze > /sys/power/state" to
freeze the system, i.e. Suspend-to-Idle. The user can press the keyboard
or move the mouse to wake up the VM.

With the hibernation patchset, Linux VM on Hyper-V can hibernate to disk,
but Suspend-to-Idle is broken: when the synthetic keyboard/mouse are
suspended, there is no way to wake up the VM.

Fix the issue by not suspending and resuming the vmbus devices upon
Suspend-to-Idle.

Fixes: f53335e3289f ("Drivers: hv: vmbus: Suspend/resume the vmbus itself for hibernation")
Cc: stable@vger.kernel.org
Reviewed-by: Michael Kelley <mikelley@microsoft.com>
Signed-off-by: Dexuan Cui <decui@microsoft.com>
Link: https://lore.kernel.org/r/1586663435-36243-1-git-send-email-decui@microsoft.com
Signed-off-by: Wei Liu <wei.liu@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
 		2021-03-16 16:27:20 +08:00
Documentation USB: hub: Revert commit bd0e6c9614b9 ("usb: hub: try old enumeration scheme first for high speed devices") 2021-03-16 16:26:56 +08:00
LICENSES Init Repo base on linux 5.4.32 long term, and add base tlinux kernel interfaces. 2021-03-16 11:01:34 +08:00
arch arm64: Delete the space separator in __emit_inst 2021-03-16 16:27:14 +08:00
block blk-mq: Put driver tag in blk_mq_dispatch_rq_list() when no budget 2021-03-16 16:27:15 +08:00
certs Init Repo base on linux 5.4.32 long term, and add base tlinux kernel interfaces. 2021-03-16 11:01:34 +08:00
crypto crypto: rng - Fix a refcounting bug in crypto_rng_reset() 2021-03-16 16:26:09 +08:00
drivers Drivers: hv: vmbus: Fix Suspend-to-Idle for Generation-2 VM 2021-03-16 16:27:20 +08:00
fs btrfs: transaction: Avoid deadlock due to bad initialization timing of fs_info::journal_info 2021-03-16 16:27:18 +08:00
include NFSv4.1: fix handling of backchannel binding in BIND_CONN_TO_SESSION 2021-03-16 16:27:17 +08:00
init printk: queue wake_up_klogd irq_work only if per-CPU areas are ready 2021-03-16 16:27:05 +08:00
ipc ipc/util.c: sysvipc_find_ipc() should increase position index 2021-03-16 16:26:46 +08:00
kernel signal: check sig before setting info in kill_pid_usb_asyncio 2021-03-16 16:27:12 +08:00
lib lib/raid6/test: fix build on distros whose /bin/sh is not bash 2021-03-16 16:26:46 +08:00
mm mm: shmem: disable interrupt when acquiring info->lock in userfaultfd_copy path 2021-03-16 16:27:12 +08:00
net net: use indirect call wrappers for skb_copy_datagram_iter() 2021-03-16 16:27:16 +08:00
package config/arm64: OPEN CONFIG_PSI and phytium configs 2021-03-16 11:02:59 +08:00
samples vmalloc: fix remap_vmalloc_range() bounds checks 2021-03-16 16:26:56 +08:00
scripts kbuild: fix DT binding schema rule again to avoid needless rebuilds 2021-03-16 16:27:06 +08:00
security KEYS: Avoid false positive ENOMEM error on key read 2021-03-16 16:26:53 +08:00
sound ALSA: pcm: oss: Place the plugin buffer overflow checks correctly 2021-03-16 16:27:20 +08:00
tools objtool: Support Clang non-section symbols in ORC dump 2021-03-16 16:27:14 +08:00
usr Init Repo base on linux 5.4.32 long term, and add base tlinux kernel interfaces. 2021-03-16 11:01:34 +08:00
virt Init Repo base on linux 5.4.32 long term, and add base tlinux kernel interfaces. 2021-03-16 11:01:34 +08:00
.clang-format Init Repo base on linux 5.4.32 long term, and add base tlinux kernel interfaces. 2021-03-16 11:01:34 +08:00
.cocciconfig Init Repo base on linux 5.4.32 long term, and add base tlinux kernel interfaces. 2021-03-16 11:01:34 +08:00
.get_maintainer.ignore Init Repo base on linux 5.4.32 long term, and add base tlinux kernel interfaces. 2021-03-16 11:01:34 +08:00
.gitattributes Init Repo base on linux 5.4.32 long term, and add base tlinux kernel interfaces. 2021-03-16 11:01:34 +08:00
.gitignore Init Repo base on linux 5.4.32 long term, and add base tlinux kernel interfaces. 2021-03-16 11:01:34 +08:00
COPYING Init Repo base on linux 5.4.32 long term, and add base tlinux kernel interfaces. 2021-03-16 11:01:34 +08:00
CREDITS Init Repo base on linux 5.4.32 long term, and add base tlinux kernel interfaces. 2021-03-16 11:01:34 +08:00
Kbuild Init Repo base on linux 5.4.32 long term, and add base tlinux kernel interfaces. 2021-03-16 11:01:34 +08:00
Kconfig Init Repo base on linux 5.4.32 long term, and add base tlinux kernel interfaces. 2021-03-16 11:01:34 +08:00
MAINTAINERS Init Repo base on linux 5.4.32 long term, and add base tlinux kernel interfaces. 2021-03-16 11:01:34 +08:00
Makefile Init Repo base on linux 5.4.32 long term, and add base tlinux kernel interfaces. 2021-03-16 11:01:34 +08:00
README Init Repo base on linux 5.4.32 long term, and add base tlinux kernel interfaces. 2021-03-16 11:01:34 +08:00
README.md Init Repo base on linux 5.4.32 long term, and add base tlinux kernel interfaces. 2021-03-16 11:01:34 +08:00
backport_remove_lists.txt Init Repo base on linux 5.4.32 long term, and add base tlinux kernel interfaces. 2021-03-16 11:01:34 +08:00
tools_key.pub Init Repo base on linux 5.4.32 long term, and add base tlinux kernel interfaces. 2021-03-16 11:01:34 +08:00

README.md

Tencent Linux Kernel 4.0