Re: [gentoo-hardened] KVM & Gentoo Hardened

[RB <aoz.syn@gmail.com>]

On Tue, Dec 16, 2008 at 14:19, Romain BERGE <romain.berge@gmail.com> wrote:
> Hey all,
>
> I am wondering of using and AMD CPU with the AMD-V.
> I wonder of using KVM to virtualise a few Hardened server.
>
> Someone used already KVM+ Hardened ?

Anyone else get KVM running on a hardened host?  I'm seeing some
issues right now:
 - The kvm-82 modules use symbols only in 2.6.28, making it
incompatible with the current hardened-sources:
[ 1584.882179] kvm: Unknown symbol intel_iommu_domain_alloc
[ 1584.882259] kvm: Unknown symbol intel_iommu_detach_dev
[ 1584.882340] kvm: Unknown symbol intel_iommu_page_mapping
[ 1584.882768] kvm: Unknown symbol intel_iommu_context_mapping
[ 1584.882862] kvm: Unknown symbol intel_iommu_iova_to_pfn
[ 1584.883441] kvm: Unknown symbol intel_iommu_domain_exit
 - KVM segfaults upon execution against the 2.6.27-hardened-r3; I
haven't debugged it yet, but it may well be tied to the symbol issues
 - kqemu starts to compile with gcc-4.3.2-r2 but fails with a
relocation error I'm seeing from several other packages under the new
hardened gcc-4.3.2-r2:
relocation R_X86_64_32 against `a local symbol' can not be used when
making a shared object; recompile with -fPIC
(I've already patched a few packages for these)
 - Even after disabling kqemu and switching to gcc-3.x, compiling
qemu-softmmu results in the same error as above.

Rather disappointing, I was hoping to get a hardened profile host
backing my VMs.  Guess it's back to a standard profile for a bit.


RB