From: Avi Kivity <avi@qumranet.com>
To: Anthony Liguori <anthony@codemonkey.ws>
Cc: Thomas Gleixner <tglx@linutronix.de>,
Marcelo Tosatti <mtosatti@redhat.com>,
Chris Wright <chrisw@redhat.com>,
Glauber Costa <gcosta@redhat.com>,
kvm@vger.kernel.org, john stultz <johnstul@us.ibm.com>
Subject: Re: [patch 01/12] expose ACPI pmtimer to userspace (/dev/pmtimer)
Date: Wed, 04 Jun 2008 12:53:13 +0300 [thread overview]
Message-ID: <48466609.8070007@qumranet.com> (raw)
In-Reply-To: <4842D4BB.5020907@codemonkey.ws>
Anthony Liguori wrote:
> Thomas Gleixner wrote:
>> Can we please keep that code inside of drivers/clocksource/acpi_pm.c
>> without creating a new disconnected file in drivers/char ?
>>
>> Btw, depending on the use case we might as well have a sysfs entry
>> for that.
>
> I think sysfs would actually make a lot of sense for this.
>
It's read many thousands of times per second. You don't want a
read()/sprintf()/atoi() sequence every time.
--
Do not meddle in the internals of kernels, for they are subtle and quick to panic.
next prev parent reply other threads:[~2008-06-04 9:53 UTC|newest]
Thread overview: 27+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-05-29 22:22 [patch 00/12] fake ACPI C2 emulation v2 Marcelo Tosatti
2008-05-29 22:22 ` [patch 01/12] expose ACPI pmtimer to userspace (/dev/pmtimer) Marcelo Tosatti
2008-06-01 16:34 ` Thomas Gleixner
2008-06-01 16:56 ` Anthony Liguori
2008-06-04 9:53 ` Avi Kivity [this message]
2008-06-04 10:01 ` Thomas Gleixner
2008-06-04 10:35 ` Avi Kivity
2008-06-01 17:56 ` Marcelo Tosatti
2008-06-01 18:17 ` Thomas Gleixner
2008-06-02 16:43 ` John Stultz
2008-06-03 4:09 ` Marcelo Tosatti
2008-05-29 22:22 ` [patch 02/12] KVM: allow multiple IO bitmap pages, provide userspace interface Marcelo Tosatti
2008-05-29 22:22 ` [patch 03/12] KVM: allow userspace to open access to ACPI pmtimer Marcelo Tosatti
2008-05-29 22:22 ` [patch 04/12] KVM: move muldiv64 to x86.c, export Marcelo Tosatti
2008-05-29 22:22 ` [patch 05/12] KVM: in-kernel ACPI timer emulation Marcelo Tosatti
2008-05-29 22:22 ` [patch 06/12] QEMU/KVM: self-disabling C2 emulation Marcelo Tosatti
2008-05-29 22:22 ` [patch 07/12] libkvm: interface to KVM_SET_OPEN_IOPORT Marcelo Tosatti
2008-05-29 22:22 ` [patch 08/12] QEMU/KVM: non-virtualized ACPI PMTimer support Marcelo Tosatti
2008-05-29 22:22 ` [patch 09/12] libkvm: in-kernel ACPI pmtimer interface Marcelo Tosatti
2008-05-29 22:22 ` [patch 10/12] QEMU/KVM: add option to disable in-kernel pmtimer emulation Marcelo Tosatti
2008-05-29 22:23 ` [patch 11/12] libkvm: interface for pmtimer save/restore Marcelo Tosatti
2008-05-29 22:23 ` [patch 12/12] QEMU/KVM: in-kernel pmtimer save/restore support Marcelo Tosatti
2008-06-01 9:21 ` [patch 00/12] fake ACPI C2 emulation v2 Avi Kivity
2008-06-02 16:08 ` Marcelo Tosatti
2008-06-04 10:49 ` Avi Kivity
2008-06-05 3:12 ` Marcelo Tosatti
2008-06-05 7:56 ` Avi Kivity
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