From: Avi Kivity <avi@redhat.com>
To: Joerg Roedel <joerg.roedel@amd.com>
Cc: Marcelo Tosatti <marcelo@kvack.org>,
kvm@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH 0/8 v3] KVM support for 1GB pages
Date: Mon, 22 Jun 2009 12:55:05 +0300 [thread overview]
Message-ID: <4A3F54F9.9060506@redhat.com> (raw)
In-Reply-To: <20090622094953.GE5139@amd.com>
On 06/22/2009 12:49 PM, Joerg Roedel wrote:
>>> After the rework it even fails to boot a guest with gbpages enabled. This week
>>> is a bit tight but I will debug this further next week.
>>>
>>>
>> Does the failure happen only when both guest/host use gbpages, or does
>> it also happen if gbpages is disabled on either one?
>>
>
> It happens only when the guest uses gbpages. If I disable them at boot the
> linux guest boots fine and runs stable.
>
This seems to point the finger at the write protection logic, either we
create a gbpage even though there are shadowed page tables in its area,
or (more likely) we don't break up a gbpage when we write protect a page.
--
error compiling committee.c: too many arguments to function
next prev parent reply other threads:[~2009-06-22 9:54 UTC|newest]
Thread overview: 23+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-06-19 13:16 [PATCH 0/8 v3] KVM support for 1GB pages Joerg Roedel
2009-06-19 13:16 ` [PATCH 1/8] hugetlbfs: export vma_kernel_pagsize to modules Joerg Roedel
2009-06-19 13:16 ` [PATCH 2/8] kvm: change memslot data structures for multiple hugepage sizes Joerg Roedel
2009-06-23 16:49 ` Marcelo Tosatti
2009-06-19 13:16 ` [PATCH 3/8] kvm/mmu: rename is_largepage_backed to mapping_level Joerg Roedel
2009-06-23 15:59 ` Marcelo Tosatti
2009-06-23 17:00 ` Joerg Roedel
2009-06-19 13:16 ` [PATCH 4/8] kvm/mmu: make rmap code aware of mapping levels Joerg Roedel
2009-06-19 13:16 ` [PATCH 5/8] kvm/mmu: make direct mapping paths " Joerg Roedel
2009-06-23 16:47 ` Marcelo Tosatti
2009-06-23 17:10 ` Joerg Roedel
2009-06-19 13:16 ` [PATCH 6/8] kvm/mmu: add support for another level to page walker Joerg Roedel
2009-06-20 11:19 ` Avi Kivity
2009-06-22 9:38 ` Joerg Roedel
2009-06-19 13:16 ` [PATCH 7/8] kvm/mmu: enable gbpages by increasing nr of pagesizes Joerg Roedel
2009-06-19 13:16 ` [PATCH 8/8] kvm x86: report 1GB page support to userspace Joerg Roedel
2009-06-20 11:03 ` [PATCH 0/8 v3] KVM support for 1GB pages Avi Kivity
2009-06-22 9:40 ` Joerg Roedel
2009-06-22 9:43 ` Avi Kivity
2009-06-22 9:49 ` Joerg Roedel
2009-06-22 9:55 ` Avi Kivity [this message]
2009-06-24 8:43 ` Avi Kivity
2009-06-29 13:17 ` Joerg Roedel
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