Re: [RFC PATCH 2/2] drivers/virt: introduce CLOCK_BOOTTIME adjustment sysfs interface driver

2021-02-10 Thread Thomas Gleixner
On Wed, Feb 10 2021 at 19:39, Hikaru Nishida wrote: > From: Hikaru Nishida > > This adds a sysfs interface /sys/kernel/boottime_adj to enable advancing > CLOCK_BOOTTIME from the userspace without actual susupend/resume cycles. > > This gives a way to mitigate CLOCK_BOOTTIME divergence between gues

Re: [RFC PATCH 2/2] drivers/virt: introduce CLOCK_BOOTTIME adjustment sysfs interface driver

2021-02-10 Thread Greg Kroah-Hartman
On Wed, Feb 10, 2021 at 07:39:08PM +0900, Hikaru Nishida wrote: > From: Hikaru Nishida > > This adds a sysfs interface /sys/kernel/boottime_adj to enable advancing > CLOCK_BOOTTIME from the userspace without actual susupend/resume cycles. > > This gives a way to mitigate CLOCK_BOOTTIME divergenc

Re: [RFC PATCH 2/2] drivers/virt: introduce CLOCK_BOOTTIME adjustment sysfs interface driver

2021-02-10 Thread Greg Kroah-Hartman
On Wed, Feb 10, 2021 at 07:39:08PM +0900, Hikaru Nishida wrote: > From: Hikaru Nishida > > This adds a sysfs interface /sys/kernel/boottime_adj to enable advancing > CLOCK_BOOTTIME from the userspace without actual susupend/resume cycles. > > This gives a way to mitigate CLOCK_BOOTTIME divergenc

[RFC PATCH 2/2] drivers/virt: introduce CLOCK_BOOTTIME adjustment sysfs interface driver

2021-02-10 Thread Hikaru Nishida
From: Hikaru Nishida This adds a sysfs interface /sys/kernel/boottime_adj to enable advancing CLOCK_BOOTTIME from the userspace without actual susupend/resume cycles. This gives a way to mitigate CLOCK_BOOTTIME divergence between guest and host on virtualized environments after suspend/resume cy