[RFC PATCH 0/3] Avoid soft lockup message when KVM is stopped by host

Eric B Munson
2011-08-03T14:25:10Z

This set is just a rough first pass at avoiding soft lockup warnings when a host
pauses the execution of a guest. A flag is set by the host in the shared page
used for the pvclock when the host goes to stop the guest. When the guest
resumes and detects a soft lockup, this flag is checked and cleared and the soft
lockup message is skipped.

This currently breaks the build for non-x86 architectures but part of what I am
looking for here is how to go about adding the function stubs for everything
else.

Eric B Munson (3):
Add flag to indicate that a vm was stopped by the host
Add functions to check if the host has stopped the vm
Add check for suspended vm in softlockup detector

arch/x86/include/asm/pvclock-abi.h | 1 +
arch/x86/include/asm/pvclock.h | 3 +++
arch/x86/kernel/kvmclock.c | 12 ++++++++++++
kernel/watchdog.c | 11 +++++++++++
4 files changed, 27 insertions(+), 0 deletions(-)

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1.7.4.1