search for: i8253

...: https://git.kernel.org/tip/35b69a420bfb56b7b74cb635ea903db05e357bec Author: Michael Kelley <mikelley at microsoft.com> AuthorDate: Sun, 4 Nov 2018 03:48:54 +0000 Committer: Thomas Gleixner <tglx at linutronix.de> CommitDate: Sun, 4 Nov 2018 11:04:46 +0100 clockevents/drivers/i8253: Add support for PIT shutdown quirk Add support for platforms where pit_shutdown() doesn't work because of a quirk in the PIT emulation. On these platforms setting the counter register to zero causes the PIT to start running again, negating the shutdown. Provide a global variable that control...

This is a note to let you know that I've just added the patch titled clockevents/drivers/i8253: Add support for PIT shutdown quirk to the 4.4-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary The filename of the patch is: clockevents-drivers-i8253-add-support-for-pit-shutdown-quirk.patch and it can be found in the qu...

This is a note to let you know that I've just added the patch titled clockevents/drivers/i8253: Add support for PIT shutdown quirk to the 4.9-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary The filename of the patch is: clockevents-drivers-i8253-add-support-for-pit-shutdown-quirk.patch and it can be found in the qu...

This is a note to let you know that I've just added the patch titled clockevents/drivers/i8253: Add support for PIT shutdown quirk to the 4.14-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary The filename of the patch is: clockevents-drivers-i8253-add-support-for-pit-shutdown-quirk.patch and it can be found in the q...

This is a note to let you know that I've just added the patch titled clockevents/drivers/i8253: Add support for PIT shutdown quirk to the 4.18-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary The filename of the patch is: clockevents-drivers-i8253-add-support-for-pit-shutdown-quirk.patch and it can be found in the q...

This is a note to let you know that I've just added the patch titled clockevents/drivers/i8253: Add support for PIT shutdown quirk to the 4.19-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary The filename of the patch is: clockevents-drivers-i8253-add-support-for-pit-shutdown-quirk.patch and it can be found in the q...

...rcelo.cerri at canonical.com> Cc: KY Srinivasan <kys at microsoft.com> Cc: stable at vger.kernel.org Link: https://lkml.kernel.org/r/1541303219-11142-2-git-send-email-mikelley at microsoft.com Signed-off-by: Greg Kroah-Hartman <gregkh at linuxfoundation.org> --- drivers/clocksource/i8253.c | 14 ++++++++++++-- include/linux/i8253.h | 1 + 2 files changed, 13 insertions(+), 2 deletions(-) --- a/drivers/clocksource/i8253.c +++ b/drivers/clocksource/i8253.c @@ -19,6 +19,13 @@ DEFINE_RAW_SPINLOCK(i8253_lock); EXPORT_SYMBOL(i8253_lock); +/* + * Handle PIT quirk in pit_sh...

...rcelo.cerri at canonical.com> Cc: KY Srinivasan <kys at microsoft.com> Cc: stable at vger.kernel.org Link: https://lkml.kernel.org/r/1541303219-11142-2-git-send-email-mikelley at microsoft.com Signed-off-by: Greg Kroah-Hartman <gregkh at linuxfoundation.org> --- drivers/clocksource/i8253.c | 14 ++++++++++++-- include/linux/i8253.h | 1 + 2 files changed, 13 insertions(+), 2 deletions(-) --- a/drivers/clocksource/i8253.c +++ b/drivers/clocksource/i8253.c @@ -20,6 +20,13 @@ DEFINE_RAW_SPINLOCK(i8253_lock); EXPORT_SYMBOL(i8253_lock); +/* + * Handle PIT quirk in pit_sh...

...rcelo.cerri at canonical.com> Cc: KY Srinivasan <kys at microsoft.com> Cc: stable at vger.kernel.org Link: https://lkml.kernel.org/r/1541303219-11142-2-git-send-email-mikelley at microsoft.com Signed-off-by: Greg Kroah-Hartman <gregkh at linuxfoundation.org> --- drivers/clocksource/i8253.c | 14 ++++++++++++-- include/linux/i8253.h | 1 + 2 files changed, 13 insertions(+), 2 deletions(-) --- a/drivers/clocksource/i8253.c +++ b/drivers/clocksource/i8253.c @@ -20,6 +20,13 @@ DEFINE_RAW_SPINLOCK(i8253_lock); EXPORT_SYMBOL(i8253_lock); +/* + * Handle PIT quirk in pit_sh...

...rcelo.cerri at canonical.com> Cc: KY Srinivasan <kys at microsoft.com> Cc: stable at vger.kernel.org Link: https://lkml.kernel.org/r/1541303219-11142-2-git-send-email-mikelley at microsoft.com Signed-off-by: Greg Kroah-Hartman <gregkh at linuxfoundation.org> --- drivers/clocksource/i8253.c | 14 ++++++++++++-- include/linux/i8253.h | 1 + 2 files changed, 13 insertions(+), 2 deletions(-) --- a/drivers/clocksource/i8253.c +++ b/drivers/clocksource/i8253.c @@ -20,6 +20,13 @@ DEFINE_RAW_SPINLOCK(i8253_lock); EXPORT_SYMBOL(i8253_lock); +/* + * Handle PIT quirk in pit_sh...

...rcelo.cerri at canonical.com> Cc: KY Srinivasan <kys at microsoft.com> Cc: stable at vger.kernel.org Link: https://lkml.kernel.org/r/1541303219-11142-2-git-send-email-mikelley at microsoft.com Signed-off-by: Greg Kroah-Hartman <gregkh at linuxfoundation.org> --- drivers/clocksource/i8253.c | 14 ++++++++++++-- include/linux/i8253.h | 1 + 2 files changed, 13 insertions(+), 2 deletions(-) --- a/drivers/clocksource/i8253.c +++ b/drivers/clocksource/i8253.c @@ -19,6 +19,13 @@ DEFINE_RAW_SPINLOCK(i8253_lock); EXPORT_SYMBOL(i8253_lock); +/* + * Handle PIT quirk in pit_sh...

...an <kys at microsoft.com> Link: https://lkml.kernel.org/r/1541303219-11142-2-git-send-email-mikelley at microsoft.com [bwh: Backported to 3.16: - Don't use __ro_after_init - Adjust context, indentation] Signed-off-by: Ben Hutchings <ben at decadent.org.uk> --- drivers/clocksource/i8253.c | 14 ++++++++++++-- include/linux/i8253.h | 1 + 2 files changed, 13 insertions(+), 2 deletions(-) --- a/drivers/clocksource/i8253.c +++ b/drivers/clocksource/i8253.c @@ -19,6 +19,13 @@ DEFINE_RAW_SPINLOCK(i8253_lock); EXPORT_SYMBOL(i8253_lock); +/* + * Handle PIT quirk in pit_shutdo...

On 01/11/2018 18:30, Michael Kelley wrote: > pit_shutdown() doesn't work on Hyper-V because of a quirk in the > PIT emulation. This problem exists in all versions of Hyper-V and > had not been noticed previously. When the counter register is set > to zero, the emulated PIT continues to interrupt @18.2 HZ. > > So add a test for running on Hyper-V, and use that test to skip

I am running Centos 3.3. Is there any way to get rid of this harmless, but annoying message. This is a non-production environment. I tried editing the syslog.conf file and adding: kern.none /dev/console And I commented out the *.emerg line like this: #*.emerg * I also reloaded the syslog daemon after making the changes. Thanks, Geoff

...--- arch/x86/kernel/cpu/mshyperv.c | 11 +++++++++++ 1 file changed, 11 insertions(+) --- a/arch/x86/kernel/cpu/mshyperv.c +++ b/arch/x86/kernel/cpu/mshyperv.c @@ -20,6 +20,7 @@ #include <linux/interrupt.h> #include <linux/irq.h> #include <linux/kexec.h> +#include <linux/i8253.h> #include <asm/processor.h> #include <asm/hypervisor.h> #include <asm/hyperv.h> @@ -243,6 +244,16 @@ static void __init ms_hyperv_init_platfo if (efi_enabled(EFI_BOOT)) x86_platform.get_nmi_reason = hv_get_nmi_reason; + /* + * Hyper-V VMs have a PIT emulation quirk...

...--- arch/x86/kernel/cpu/mshyperv.c | 11 +++++++++++ 1 file changed, 11 insertions(+) --- a/arch/x86/kernel/cpu/mshyperv.c +++ b/arch/x86/kernel/cpu/mshyperv.c @@ -20,6 +20,7 @@ #include <linux/interrupt.h> #include <linux/irq.h> #include <linux/kexec.h> +#include <linux/i8253.h> #include <asm/processor.h> #include <asm/hypervisor.h> #include <asm/hyperv-tlfs.h> @@ -285,6 +286,16 @@ static void __init ms_hyperv_init_platfo if (efi_enabled(EFI_BOOT)) x86_platform.get_nmi_reason = hv_get_nmi_reason; + /* + * Hyper-V VMs have a PIT emulation...

...--- arch/x86/kernel/cpu/mshyperv.c | 11 +++++++++++ 1 file changed, 11 insertions(+) --- a/arch/x86/kernel/cpu/mshyperv.c +++ b/arch/x86/kernel/cpu/mshyperv.c @@ -20,6 +20,7 @@ #include <linux/interrupt.h> #include <linux/irq.h> #include <linux/kexec.h> +#include <linux/i8253.h> #include <asm/processor.h> #include <asm/hypervisor.h> #include <asm/hyperv-tlfs.h> @@ -285,6 +286,16 @@ static void __init ms_hyperv_init_platfo if (efi_enabled(EFI_BOOT)) x86_platform.get_nmi_reason = hv_get_nmi_reason; + /* + * Hyper-V VMs have a PIT emulation...

...gt; --- arch/x86/kernel/cpu/mshyperv.c | 11 +++++++++++ 1 file changed, 11 insertions(+) --- a/arch/x86/kernel/cpu/mshyperv.c +++ b/arch/x86/kernel/cpu/mshyperv.c @@ -18,6 +18,7 @@ #include <linux/efi.h> #include <linux/interrupt.h> #include <linux/irq.h> +#include <linux/i8253.h> #include <asm/processor.h> #include <asm/hypervisor.h> #include <asm/hyperv.h> @@ -143,6 +144,16 @@ static void __init ms_hyperv_init_platfo no_timer_check = 1; #endif + /* + * Hyper-V VMs have a PIT emulation quirk such that zeroing the + * counter register during...

...--- arch/x86/kernel/cpu/mshyperv.c | 11 +++++++++++ 1 file changed, 11 insertions(+) --- a/arch/x86/kernel/cpu/mshyperv.c +++ b/arch/x86/kernel/cpu/mshyperv.c @@ -20,6 +20,7 @@ #include <linux/interrupt.h> #include <linux/irq.h> #include <linux/kexec.h> +#include <linux/i8253.h> #include <asm/processor.h> #include <asm/hypervisor.h> #include <asm/hyperv.h> @@ -243,6 +244,16 @@ static void __init ms_hyperv_init_platfo if (efi_enabled(EFI_BOOT)) x86_platform.get_nmi_reason = hv_get_nmi_reason; + /* + * Hyper-V VMs have a PIT emulation quirk...

...--- arch/x86/kernel/cpu/mshyperv.c | 11 +++++++++++ 1 file changed, 11 insertions(+) --- a/arch/x86/kernel/cpu/mshyperv.c +++ b/arch/x86/kernel/cpu/mshyperv.c @@ -20,6 +20,7 @@ #include <linux/interrupt.h> #include <linux/irq.h> #include <linux/kexec.h> +#include <linux/i8253.h> #include <asm/processor.h> #include <asm/hypervisor.h> #include <asm/hyperv-tlfs.h> @@ -285,6 +286,16 @@ static void __init ms_hyperv_init_platfo if (efi_enabled(EFI_BOOT)) x86_platform.get_nmi_reason = hv_get_nmi_reason; + /* + * Hyper-V VMs have a PIT emulation...