From: Avi Kivity <avi@redhat.com>
To: Joerg Roedel <joerg.roedel@amd.com>
Cc: Marcelo Tosatti <marcelo@kvack.or>,
linux-kernel@vger.kernel.org, kvm@vger.kernel.org
Subject: Re: [PATCH 7/7] kvm x86: report 1GB page support to userspace
Date: Tue, 28 Apr 2009 13:10:04 +0300 [thread overview]
Message-ID: <49F6D5FC.90106@redhat.com> (raw)
In-Reply-To: <1240574327-21575-8-git-send-email-joerg.roedel@amd.com>
Joerg Roedel wrote:
> If userspace knows that the kernel part supports 1GB pages it can enable
> the corresponding cpuid bit so that guests actually use GB pages.
>
Why not do everything via KVM_GET_SUPPORTED_CPUID2 and virtualized
cpuid? We can enable it in the kernel unconditionally.
--
Do not meddle in the internals of kernels, for they are subtle and quick to panic.
next prev parent reply other threads:[~2009-04-28 10:10 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-04-24 11:58 [PATCH 0/7] KVM support for 1GB pages v2 Joerg Roedel
2009-04-24 11:58 ` [PATCH 1/7] hugetlbfs: export vma_kernel_pagsize to modules Joerg Roedel
2009-04-24 11:58 ` [PATCH 2/7] kvm: change memslot data structures for multiple hugepage sizes Joerg Roedel
2009-04-24 11:58 ` [PATCH 3/7] kvm/mmu: rename is_largepage_backed to mapping_level Joerg Roedel
2009-04-27 17:12 ` Marcelo Tosatti
2009-04-28 9:49 ` Joerg Roedel
2009-04-24 11:58 ` [PATCH 4/7] kvm/mmu: make rmap code aware of mapping levels Joerg Roedel
2009-04-24 11:58 ` [PATCH 5/7] kvm/mmu: make direct mapping paths " Joerg Roedel
2009-04-24 11:58 ` [PATCH 6/7] kvm/mmu: enable gbpages by increasing nr of pagesizes Joerg Roedel
2009-04-24 11:58 ` [PATCH 7/7] kvm x86: report 1GB page support to userspace Joerg Roedel
2009-04-28 10:10 ` Avi Kivity [this message]
2009-04-28 10:16 ` [PATCH 0/7] KVM support for 1GB pages v2 Avi Kivity
2009-04-28 10:20 ` Joerg Roedel
-- strict thread matches above, loose matches on Subject: below --
2009-07-27 14:30 [PATCH 0/7 v5] KVM: support for 1gb pages Joerg Roedel
2009-07-27 14:30 ` [PATCH 7/7] kvm x86: report 1GB page support to userspace Joerg Roedel
2009-03-27 14:31 [PATCH 0/7] Support for GB pages in KVM Joerg Roedel
2009-03-27 14:31 ` [PATCH 7/7] kvm x86: report 1GB page support to userspace Joerg Roedel
2009-03-29 11:54 ` Avi Kivity
2009-03-29 12:45 ` Joerg Roedel
2009-03-29 12:49 ` Avi Kivity
2009-03-29 12:54 ` Joerg Roedel
2009-03-29 13:00 ` Avi Kivity
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