From: Vitaly Kuznetsov <vkuznets@redhat.com>
To: Eduardo Habkost <ehabkost@redhat.com>
Cc: Paolo Bonzini <pbonzini@redhat.com>,
Marcelo Tosatti <mtosatti@redhat.com>,
qemu-devel@nongnu.org, Richard Henderson <rth@twiddle.net>
Subject: Re: [PATCH] i386/kvm: correct the meaning of '0xffffffff' value for hv-spinlocks
Date: Tue, 21 Jul 2020 10:58:11 +0200 [thread overview]
Message-ID: <87r1t5p7mk.fsf@vitty.brq.redhat.com> (raw)
In-Reply-To: <20200720194039.GX1274972@habkost.net>
Eduardo Habkost <ehabkost@redhat.com> writes:
> On Fri, May 15, 2020 at 01:48:47PM +0200, Vitaly Kuznetsov wrote:
>> Hyper-V TLFS prior to version 6.0 had a mistake in it: special value
>> '0xffffffff' for CPUID 0x40000004.EBX was called 'never to retry', this
>> looked weird (like why it's not '0' which supposedly have the same effect?)
>> but nobody raised the question. In TLFS version 6.0 the mistake was
>> corrected to 'never notify' which sounds logical. Fix QEMU accordingly.
>>
>> Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com>
>
> I've just found this buried in my inbox, sorry for missing it!
Better late than never! (And, to be honest, I completely forgot about it
as well :-)
>
> Queued for 5.2.
>
Thanks!
--
Vitaly
prev parent reply other threads:[~2020-07-21 9:00 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-05-15 11:48 [PATCH] i386/kvm: correct the meaning of '0xffffffff' value for hv-spinlocks Vitaly Kuznetsov
2020-07-20 19:40 ` Eduardo Habkost
2020-07-21 8:58 ` Vitaly Kuznetsov [this message]
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