Displaying 20 results from an estimated 509 matches for "gleixner".
2018 Sep 18
3
[patch 09/11] x86/vdso: Simplify the invalid vclock case
On Tue, Sep 18, 2018 at 12:41:57PM +0200, Thomas Gleixner wrote:
> On Tue, 18 Sep 2018, Thomas Gleixner wrote:
> > On Tue, 18 Sep 2018, Thomas Gleixner wrote:
> > > On Tue, 18 Sep 2018, Peter Zijlstra wrote:
> > > > > Your memory serves you right. That's indeed observable on CPUs which
> > > > > lack TSC...
2018 Sep 18
3
[patch 09/11] x86/vdso: Simplify the invalid vclock case
On Tue, Sep 18, 2018 at 12:41:57PM +0200, Thomas Gleixner wrote:
> On Tue, 18 Sep 2018, Thomas Gleixner wrote:
> > On Tue, 18 Sep 2018, Thomas Gleixner wrote:
> > > On Tue, 18 Sep 2018, Peter Zijlstra wrote:
> > > > > Your memory serves you right. That's indeed observable on CPUs which
> > > > > lack TSC...
2018 Sep 18
2
[patch 09/11] x86/vdso: Simplify the invalid vclock case
On Tue, 18 Sep 2018, Thomas Gleixner wrote:
> On Tue, 18 Sep 2018, Peter Zijlstra wrote:
> > > Your memory serves you right. That's indeed observable on CPUs which
> > > lack TSC_ADJUST.
> >
> > But, if the gtod code can observe this, then why doesn't the code that
> > checks the sync?
&...
2018 Sep 18
2
[patch 09/11] x86/vdso: Simplify the invalid vclock case
On Tue, 18 Sep 2018, Thomas Gleixner wrote:
> On Tue, 18 Sep 2018, Peter Zijlstra wrote:
> > > Your memory serves you right. That's indeed observable on CPUs which
> > > lack TSC_ADJUST.
> >
> > But, if the gtod code can observe this, then why doesn't the code that
> > checks the sync?
&...
2018 Sep 27
1
[patch 09/11] x86/vdso: Simplify the invalid vclock case
On Wed, 19 Sep 2018, Thomas Gleixner wrote:
> On Tue, 18 Sep 2018, Andy Lutomirski wrote:
> > > On Sep 18, 2018, at 3:46 PM, Thomas Gleixner <tglx at linutronix.de> wrote:
> > > On Tue, 18 Sep 2018, Andy Lutomirski wrote:
> > >> Do we do better if we use signed arithmetic for the whole calculatio...
2018 Sep 14
2
[patch 11/11] x66/vdso: Add CLOCK_TAI support
> On Sep 14, 2018, at 5:50 AM, Thomas Gleixner <tglx at linutronix.de> wrote:
>
> With the storage array in place it's now trivial to support CLOCK_TAI in
> the vdso. Instead of extending the array to accomodate CLOCK_TAI, make use
> of the fact that:
>
> - CLOCK ids are set in stone
> - CLOCK_THREAD_CPUTIME is...
2018 Sep 14
2
[patch 11/11] x66/vdso: Add CLOCK_TAI support
> On Sep 14, 2018, at 5:50 AM, Thomas Gleixner <tglx at linutronix.de> wrote:
>
> With the storage array in place it's now trivial to support CLOCK_TAI in
> the vdso. Instead of extending the array to accomodate CLOCK_TAI, make use
> of the fact that:
>
> - CLOCK ids are set in stone
> - CLOCK_THREAD_CPUTIME is...
2020 Feb 19
3
[PATCH] x86/ioperm: add new paravirt function update_io_bitmap
On 18.02.20 22:03, Thomas Gleixner wrote:
> Juergen Gross <jgross at suse.com> writes:
>> Commit 111e7b15cf10f6 ("x86/ioperm: Extend IOPL config to control
>> ioperm() as well") reworked the iopl syscall to use I/O bitmaps.
>>
>> Unfortunately this broke Xen PV domains using that syscall as...
2020 Feb 19
3
[PATCH] x86/ioperm: add new paravirt function update_io_bitmap
On 18.02.20 22:03, Thomas Gleixner wrote:
> Juergen Gross <jgross at suse.com> writes:
>> Commit 111e7b15cf10f6 ("x86/ioperm: Extend IOPL config to control
>> ioperm() as well") reworked the iopl syscall to use I/O bitmaps.
>>
>> Unfortunately this broke Xen PV domains using that syscall as...
2018 Sep 18
2
[patch 09/11] x86/vdso: Simplify the invalid vclock case
> On Sep 18, 2018, at 3:46 PM, Thomas Gleixner <tglx at linutronix.de> wrote:
>
> On Tue, 18 Sep 2018, Andy Lutomirski wrote:
>>> On Sep 18, 2018, at 12:52 AM, Thomas Gleixner <tglx at linutronix.de> wrote:
>>>
>>>>> On Mon, 17 Sep 2018, John Stultz wrote:
>>>>> On Mon, Sep 17,...
2018 Sep 18
2
[patch 09/11] x86/vdso: Simplify the invalid vclock case
> On Sep 18, 2018, at 3:46 PM, Thomas Gleixner <tglx at linutronix.de> wrote:
>
> On Tue, 18 Sep 2018, Andy Lutomirski wrote:
>>> On Sep 18, 2018, at 12:52 AM, Thomas Gleixner <tglx at linutronix.de> wrote:
>>>
>>>>> On Mon, 17 Sep 2018, John Stultz wrote:
>>>>> On Mon, Sep 17,...
2018 Sep 14
24
[patch 00/11] x86/vdso: Cleanups, simmplifications and CLOCK_TAI support
Matt attempted to add CLOCK_TAI support to the VDSO clock_gettime()
implementation, which extended the clockid switch case and added yet
another slightly different copy of the same code.
Especially the extended switch case is problematic as the compiler tends to
generate a jump table which then requires to use retpolines. If jump tables
are disabled it adds yet another conditional to the existing
2018 Sep 14
24
[patch 00/11] x86/vdso: Cleanups, simmplifications and CLOCK_TAI support
Matt attempted to add CLOCK_TAI support to the VDSO clock_gettime()
implementation, which extended the clockid switch case and added yet
another slightly different copy of the same code.
Especially the extended switch case is problematic as the compiler tends to
generate a jump table which then requires to use retpolines. If jump tables
are disabled it adds yet another conditional to the existing
2017 Feb 13
3
[PATCH 2/2] x86/vdso: Add VCLOCK_HVCLOCK vDSO clock read method
> From: Thomas Gleixner [mailto:tglx at linutronix.de]
> Sent: Saturday, February 11, 2017 02:02
> ...
> That's important if the stuff happens cross CPU. If the update happens on
> the same CPU then this is a different story and as there are VMexits
> involved they might provide the required ordering a...
2017 Feb 13
3
[PATCH 2/2] x86/vdso: Add VCLOCK_HVCLOCK vDSO clock read method
> From: Thomas Gleixner [mailto:tglx at linutronix.de]
> Sent: Saturday, February 11, 2017 02:02
> ...
> That's important if the stuff happens cross CPU. If the update happens on
> the same CPU then this is a different story and as there are VMexits
> involved they might provide the required ordering a...
2004 Apr 21
1
Solaris 8: RSA_padding_check_PKCS1_type_1:block type is not 01
...c-md5 none
debug1: SSH2_MSG_KEX_DH_GEX_REQUEST sent
debug1: expecting SSH2_MSG_KEX_DH_GEX_GROUP
debug2: dh_gen_key: priv key bits set: 122/256
debug2: bits set: 1049/2048
debug1: SSH2_MSG_KEX_DH_GEX_INIT sent
debug1: expecting SSH2_MSG_KEX_DH_GEX_REPLY
debug3: check_host_in_hostfile: filename /home/gleixner/.ssh/known_hosts
debug3: check_host_in_hostfile: match line 76
debug3: check_host_in_hostfile: filename /home/gleixner/.ssh/known_hosts
debug3: check_host_in_hostfile: match line 76
debug1: Host 'simba' is known and matches the RSA host key.
debug1: Found key in /home/gleixner/.ssh/known_ho...
2018 Sep 18
3
[patch 09/11] x86/vdso: Simplify the invalid vclock case
> On Sep 18, 2018, at 12:52 AM, Thomas Gleixner <tglx at linutronix.de> wrote:
>
>> On Mon, 17 Sep 2018, John Stultz wrote:
>>> On Mon, Sep 17, 2018 at 12:25 PM, Andy Lutomirski <luto at kernel.org> wrote:
>>> Also, I'm not entirely convinced that this "last" thing is needed at
>>> a...
2018 Sep 18
3
[patch 09/11] x86/vdso: Simplify the invalid vclock case
> On Sep 18, 2018, at 12:52 AM, Thomas Gleixner <tglx at linutronix.de> wrote:
>
>> On Mon, 17 Sep 2018, John Stultz wrote:
>>> On Mon, Sep 17, 2018 at 12:25 PM, Andy Lutomirski <luto at kernel.org> wrote:
>>> Also, I'm not entirely convinced that this "last" thing is needed at
>>> a...
2009 Mar 28
6
cpu frequency scaling in xen 3.3.1
Hi,
i read the xenpm wiki page, but i cannot use the "p-states". xenpm shows:
xenpm
cpu id : 0
total C-states : 2
idle time(ms) : 1776034
C0 : transition [00000000000000000000]
residency [00000000000000000000 ms]
C1 : transition [00000000000000260278]
residency
2018 Sep 14
1
[patch 02/11] x86/time: Implement clocksource_arch_init()
Thomas Gleixner <tglx at linutronix.de> writes:
> Runtime validate the VCLOCK_MODE in clocksource::archdata and disable
> VCLOCK if invalid, which disables the VDSO but keeps the system running.
>
> Signed-off-by: Thomas Gleixner <tglx at linutronix.de>
> ---
> arch/x86/Kconfig...