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From: Alexander Graf <agraf@suse.de>
To: Avi Kivity <avi@redhat.com>
Cc: linuxppc-dev <linuxppc-dev@lists.ozlabs.org>,
	KVM list <kvm@vger.kernel.org>,
	kvm-ppc@vger.kernel.org
Subject: Re: [PATCH] KVM: PPC: Add generic hpte management functions
Date: Tue, 29 Jun 2010 13:06:20 +0000	[thread overview]
Message-ID: <4C29EFCC.3030303@suse.de> (raw)
In-Reply-To: <4C29EF8A.4070508@redhat.com>

Avi Kivity wrote:
> On 06/29/2010 03:56 PM, Alexander Graf wrote:
>> Avi Kivity wrote:
>>   
>>> On 06/28/2010 11:55 AM, Alexander Graf wrote:
>>>     
>>>>       
>>>>>> +
>>>>>> +static inline u64 kvmppc_mmu_hash_pte(u64 eaddr) {
>>>>>> +    return hash_64(eaddr>>    PTE_SIZE, HPTEG_HASH_BITS_PTE);
>>>>>> +}
>>>>>> +
>>>>>> +static inline u64 kvmppc_mmu_hash_vpte(u64 vpage) {
>>>>>> +    return hash_64(vpage&    0xfffffffffULL, HPTEG_HASH_BITS_VPTE);
>>>>>> +}
>>>>>> +
>>>>>> +static inline u64 kvmppc_mmu_hash_vpte_long(u64 vpage) {
>>>>>> +    return hash_64((vpage&    0xffffff000ULL)>>    12,
>>>>>> +               HPTEG_HASH_BITS_VPTE_LONG);
>>>>>> +}
>>>>>>
>>>>>>
>>>>>>            
>>>>> Still with the wierd coding style?
>>>>>
>>>>>          
>>>> Not sure what's going on there. My editor displays it normally. Weird.
>>>>
>>>>        
>>> Try hitting 'save'.
>>>      
>> hexdump -C on the respective section in the exact patch file I submitted
>> above shows:
>>
>> 00000a80  75 72 6e 20 68 61 73 68  5f 36 34 28 65 61 64 64  |urn
>> hash_64(eadd|
>> 00000a90  72 20 3e 3e 20 50 54 45  5f 53 49 5a 45 2c 20 48  |r>>
>> PTE_SIZE, H|
>>
>>
>> Maybe your mail client breaks it?
>>    
>
> The list archives too:
>
>   http://www.mail-archive.com/kvm@vger.kernel.org/msg37093.html
>
> Looks like a cache coherency bug.  What processor are you using?

Are we looking at the same link? Looks good to me there.

Alex


WARNING: multiple messages have this Message-ID (diff)
From: Alexander Graf <agraf@suse.de>
To: Avi Kivity <avi@redhat.com>
Cc: linuxppc-dev <linuxppc-dev@lists.ozlabs.org>,
	KVM list <kvm@vger.kernel.org>,
	kvm-ppc@vger.kernel.org
Subject: Re: [PATCH] KVM: PPC: Add generic hpte management functions
Date: Tue, 29 Jun 2010 15:06:20 +0200	[thread overview]
Message-ID: <4C29EFCC.3030303@suse.de> (raw)
In-Reply-To: <4C29EF8A.4070508@redhat.com>

Avi Kivity wrote:
> On 06/29/2010 03:56 PM, Alexander Graf wrote:
>> Avi Kivity wrote:
>>   
>>> On 06/28/2010 11:55 AM, Alexander Graf wrote:
>>>     
>>>>       
>>>>>> +
>>>>>> +static inline u64 kvmppc_mmu_hash_pte(u64 eaddr) {
>>>>>> +    return hash_64(eaddr>>    PTE_SIZE, HPTEG_HASH_BITS_PTE);
>>>>>> +}
>>>>>> +
>>>>>> +static inline u64 kvmppc_mmu_hash_vpte(u64 vpage) {
>>>>>> +    return hash_64(vpage&    0xfffffffffULL, HPTEG_HASH_BITS_VPTE);
>>>>>> +}
>>>>>> +
>>>>>> +static inline u64 kvmppc_mmu_hash_vpte_long(u64 vpage) {
>>>>>> +    return hash_64((vpage&    0xffffff000ULL)>>    12,
>>>>>> +               HPTEG_HASH_BITS_VPTE_LONG);
>>>>>> +}
>>>>>>
>>>>>>
>>>>>>            
>>>>> Still with the wierd coding style?
>>>>>
>>>>>          
>>>> Not sure what's going on there. My editor displays it normally. Weird.
>>>>
>>>>        
>>> Try hitting 'save'.
>>>      
>> hexdump -C on the respective section in the exact patch file I submitted
>> above shows:
>>
>> 00000a80  75 72 6e 20 68 61 73 68  5f 36 34 28 65 61 64 64  |urn
>> hash_64(eadd|
>> 00000a90  72 20 3e 3e 20 50 54 45  5f 53 49 5a 45 2c 20 48  |r>>
>> PTE_SIZE, H|
>>
>>
>> Maybe your mail client breaks it?
>>    
>
> The list archives too:
>
>   http://www.mail-archive.com/kvm@vger.kernel.org/msg37093.html
>
> Looks like a cache coherency bug.  What processor are you using?

Are we looking at the same link? Looks good to me there.

Alex

  reply	other threads:[~2010-06-29 13:06 UTC|newest]

Thread overview: 53+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2010-06-25 23:16 [PATCH] Faster MMU lookups for Book3s Alexander Graf
2010-06-25 23:16 ` Alexander Graf
2010-06-25 23:16 ` Alexander Graf
2010-06-25 23:16 ` [PATCH] KVM: PPC: Add generic hpte management functions Alexander Graf
2010-06-25 23:16   ` Alexander Graf
2010-06-25 23:16   ` Alexander Graf
2010-06-25 23:18   ` Alexander Graf
2010-06-25 23:18     ` Alexander Graf
2010-06-25 23:18     ` Alexander Graf
     [not found]   ` <1277507817-626-2-git-send-email-agraf-l3A5Bk7waGM@public.gmane.org>
2010-06-28  8:28     ` Avi Kivity
2010-06-28  8:28       ` Avi Kivity
2010-06-28  8:28       ` Avi Kivity
     [not found]       ` <4C285D1C.5060508-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
2010-06-28  8:55         ` Alexander Graf
2010-06-28  8:55           ` Alexander Graf
2010-06-28  8:55           ` Alexander Graf
     [not found]           ` <20417D40-9345-485B-9201-8B3722B7457F-l3A5Bk7waGM@public.gmane.org>
2010-06-28  9:12             ` Avi Kivity
2010-06-28  9:12               ` Avi Kivity
2010-06-28  9:12               ` Avi Kivity
     [not found]               ` <4C286770.6010204-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
2010-06-28  9:27                 ` Alexander Graf
2010-06-28  9:27                   ` Alexander Graf
2010-06-28  9:27                   ` Alexander Graf
2010-06-28  9:34                   ` Avi Kivity
2010-06-28  9:34                     ` Avi Kivity
2010-06-28  9:34                     ` Avi Kivity
     [not found]                     ` <4C286C98.8060903-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
2010-06-28  9:55                       ` Alexander Graf
2010-06-28  9:55                         ` Alexander Graf
2010-06-28  9:55                         ` Alexander Graf
     [not found]                         ` <4C2871A8.1060706-l3A5Bk7waGM@public.gmane.org>
2010-06-28 10:01                           ` Avi Kivity
2010-06-28 10:01                             ` Avi Kivity
2010-06-28 10:01                             ` Avi Kivity
     [not found]                             ` <4C2872F5.20501-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
2010-06-28 13:25                               ` Alexander Graf
2010-06-28 13:25                                 ` Alexander Graf
2010-06-28 13:25                                 ` Alexander Graf
2010-06-28 13:30                                 ` Avi Kivity
2010-06-28 13:30                                   ` Avi Kivity
2010-06-28 13:30                                   ` Avi Kivity
     [not found]                                   ` <4C28A409.9090207-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
2010-06-28 13:32                                     ` Alexander Graf
2010-06-28 13:32                                       ` Alexander Graf
2010-06-28 13:32                                       ` Alexander Graf
2010-06-29 12:56                 ` Alexander Graf
2010-06-29 12:56                   ` Alexander Graf
2010-06-29 12:56                   ` Alexander Graf
     [not found]                   ` <4C29ED94.6060904-l3A5Bk7waGM@public.gmane.org>
2010-06-29 13:05                     ` Avi Kivity
2010-06-29 13:05                       ` Avi Kivity
2010-06-29 13:05                       ` Avi Kivity
2010-06-29 13:06                       ` Alexander Graf [this message]
2010-06-29 13:06                         ` Alexander Graf
2010-06-29 13:13                         ` Avi Kivity
2010-06-29 13:13                           ` Avi Kivity
2010-06-29 13:13                           ` Avi Kivity
     [not found] ` <1277507817-626-1-git-send-email-agraf-l3A5Bk7waGM@public.gmane.org>
2010-06-25 23:16   ` [PATCH] KVM: PPC: Make use of hash based Shadow MMU Alexander Graf
2010-06-25 23:16     ` Alexander Graf
2010-06-25 23:16     ` Alexander Graf

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