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From: Andrei Borzenkov <arvidjaar@gmail.com>
To: Vitaly Kuznetsov <vkuznets@redhat.com>
Cc: The development of GNU GRUB <grub-devel@gnu.org>,
	mchang@suse.com, decui@microsoft.com, lersek@redhat.com
Subject: Re: [PATCH] calibrate_tsc(): use the Stall() EFI boot service on GRUB_MACHINE_EFI
Date: Mon, 30 Nov 2015 19:50:02 +0300	[thread overview]
Message-ID: <565C7E3A.3090004@gmail.com> (raw)
In-Reply-To: <87h9k3jvp7.fsf@vitty.brq.redhat.com>

30.11.2015 19:31, Vitaly Kuznetsov пишет:
> Andrei Borzenkov <arvidjaar@gmail.com> writes:
> 
>> 26.11.2014 11:59, Laszlo Ersek пишет:
>>> HyperV Gen2 virtual machines have no PIT; guest code should rely on UEFI
>>> services instead.
>>>
>>
>> Could you retest with current master? It now supports multiple methods
>> to calibrate TSC and should avoid PIT on UEFI systems.
> 
> Unfortunately, current master (grub-2.02-beta2-561-g346a494) still
> doesn't work for me, timer keeps running like crazy on Gen2 Hyper-V VMs.
> 

@Michael: I remember you tested version of Vladimir patch on Hyper-V?
Could you test current master?


  reply	other threads:[~2015-11-30 16:50 UTC|newest]

Thread overview: 16+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-11-26  8:59 [PATCH] calibrate_tsc(): use the Stall() EFI boot service on GRUB_MACHINE_EFI Laszlo Ersek
2014-11-26 13:42 ` Andrei Borzenkov
2014-11-26 13:49   ` Laszlo Ersek
2014-11-28 19:25 ` Vladimir 'φ-coder/phcoder' Serbinenko
2014-12-03 18:59   ` Andrei Borzenkov
2015-11-27 17:55 ` Andrei Borzenkov
2015-11-28  5:25   ` Elliott, Robert (Persistent Memory)
2015-11-28  6:02     ` Andrei Borzenkov
2015-11-30 16:31   ` Vitaly Kuznetsov
2015-11-30 16:50     ` Andrei Borzenkov [this message]
2015-11-30 17:34       ` Andrei Borzenkov
2015-11-30 18:19         ` Vitaly Kuznetsov
2015-12-01  3:11         ` Michael Chang
2015-12-01  8:34           ` Vitaly Kuznetsov
2015-12-01 15:54             ` Andrei Borzenkov
2015-12-02 11:02               ` Vitaly Kuznetsov

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