| Commit message (Collapse) | Author | Age |
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QEMU >= 2.10 will include a CPUID leaf with value "TCGTCGTCGTCG"
on x86 when running with the TCG CPU emulator:
https://lists.gnu.org/archive/html/qemu-devel/2017-07/msg05231.html
Existing methods of detecting QEMU are left unchanged for sake of
backcompatibility.
Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
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No functional change, just a new parameters and the tests that
AT_SYMLINK_NOFOLLOW works as expected.
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This reverts commit 295ee9845c801300298d01256eb5a9e3ff117ae0.
Let'd revert this for now, see #5446 for discussions.
We want elogind-detect-virt --chroot to return true for all chroot-like stuff, for
example mock environments which have use a mount namespace. The downside
of this revert that systemctl will not work from our own namespaced services, anything
with RootDirectory=/RootImage= set.
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This breaks again, this time for setups where Qemu is not reported via DMI for whatever
reason. So swap order of cpuid and dmi again, but properly detect oracle.
See issue #5318.
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In commit 050e65a we swapped order of detect_vm_{cpuid,dmi}(). That
fixed Virtualbox but broke qemu with kvm, which is expected to return
'kvm'. So check for qemu/kvm first, then DMI, CPUID last.
This fixes #5318.
Signed-off-by: Christian Hesse <mail@eworm.de>
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Previously, elogind-detect-virt was unable to detect "elogind-nspawn -a"
container environments, i.e. where PID 1 is a stub process running in host
context, as in that case /proc/1/environ was inherited from the host. Let's
improve that, and add an additional check for container environments where
/proc/1/environ is not cleaned up and does not contain the $container
environment variable:
The /proc/1/sched file shows the host PID in the first line. if this is not
1, we know we are running in a PID namespace (but not which implementation).
With these changes we should be able to detect container environments that
don't set $container at all.
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Let's be a bit more careful when detecting chroot() environments, so that we
can discern them from namespaced environments.
Previously this would simply check if the root directory of PID 1 matches our
own root directory. With this commit, we also check whether the namespaces of
PID 1 and ourselves are the same. If not we assume we are running inside of a
namespaced environment instead of a chroot() environment.
This has the benefit that systemctl (which uses running_in_chroot()) will work
as usual when invoked in a namespaced service.
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ENOENT should be treated as "false", but because of the broken errno check it
was treated as an error. So ConditionVirtualization=user-namespaces probably
returned the correct answer, but only by accident.
Fixes #4608.
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Various things don't work when we're running in a user namespace, but it's
pretty hard to reliably detect if that is true.
A function is added which looks at /proc/self/uid_map and returns false
if the default "0 0 UINT32_MAX" is found, and true if it finds anything else.
This misses the case where an 1:1 mapping with the full range was used, but
I don't know how to distinguish this case.
'elogind-detect-virt --private-users' is very similar to
'elogind-detect-virt --chroot', but we check for a user namespace instead.
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https://bugzilla.redhat.com/show_bug.cgi?id=1379852
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The CPUID and DMI vendor strings do not seem to be documented.
Values were found experimentally and by inspecting the source code.
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Virtualbox should be detected as 'oracle'. This used to work but broke
with commit:
commit 75f86906c52735c98dc0aa7e24b773edb42ee814
Author: Lennart Poettering <lennart@poettering.net>
Date: Mon Sep 7 13:42:47 2015 +0200
basic: rework virtualization detection API
We swap detection for dmi and cpuid, this fixes Virtualbox with KVM.
Hopefully it does not break anything else.
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Apply remaining fixes and the performed move of utility functions
into their own foo-util.[hc] files on libbasic.
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VIRTUALIZATION_CONTAINER_OTHER
If we don't know a container manager, we should consider it as "other"
rather than as no container manager at all, to provide a somwhat useful
upgrade path.
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afaict, this will fix a regression caused by commit 75f86906c5.
Where we used to report "kvm" before that patch, without this patch,
we would only report "qemu". The reason is because cpuid detection
must come before dmi detection. Also, both can safely come before
other xen heuristics. Untested.
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Some guests (ARM, AArch64, x86-RHEL) have 'KVM' in the product name.
Look for that first in order to more precisely report "kvm" when
detecting a QEMU/KVM guest. Without this patch we report "qemu",
even if KVM acceleration is in use on ARM/AArch64 guests.
I've only tested a backported version of this and the previous
patch on an AArch64 guest (which worked). Of course it would be
nice to get regression testing on all guest types that depend on
dmi done.
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ARM/AArch64 guests now have SMBIOS tables populated (when boot
with a late enough QEMU and a late enough AAVMF is used as the
bootloader). Furthermore, when booting ARM/AArch64 guests with
ACPI, the DT detection obviously no longer works, so we need
dmi detection.
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during git am transfer.
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This commit replays the moving around of source files that have been
done between systemd-219 and systemd-221.
Further the Makefile.am is synchronized with the upstream version and
then "re-cleaned".
A lot of functions, that are not used anywhere in elogind have been
coated into #if 0/#endif directives to further shorten the list of
dependencies.
All unneeded files have been removed.
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