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systemd: Backport fix for detecting VirtualBox.

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This is a backport of systemd/systemd@e32886e.

As noted by @ts468 in #9876, systemd-detect-virt will report KVM if
we're running inside VirtualBox 5.x. Instead of just disabling the
check, this essentially fixes systemd to be able to detect VirtualBox
again.

Tested this against nixos/tests/simple.nix (just to make sure systemd is
still working) and nixos/tests/virtualbox.nix (all tests succeed).

Thanks a lot to @ts468 for catching this and also to @domenkozar for
testing various things concerning that bug.

Fixes #9876.

Signed-off-by: aszlig <aszlig@redmoonstudios.org>
This commit is contained in:
aszlig 2015-09-17 12:51:58 +02:00
parent da0e642c2b
commit 389e654e03
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GPG Key ID: D0EBD0EC8C2DC961
1 changed files with 39 additions and 2 deletions
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41
pkgs/os-specific/linux/systemd/fixes.patch
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@ -2145,10 +2145,47 @@ index 8d171a5..bd0d324 100644
bool paths_check_timestamp(const char* const* paths, usec_t *paths_ts_usec, bool update);
diff --git a/src/shared/virt.c b/src/shared/virt.c
index f9c4e67..f10baab 100644
index f9c4e67..f3104d5 100644
--- a/src/shared/virt.c
+++ b/src/shared/virt.c
@@ -293,8 +293,26 @@ int detect_container(const char **id) {
@@ -151,7 +151,7 @@ int detect_vm(const char **id) {
_cleanup_free_ char *domcap = NULL, *cpuinfo_contents = NULL;
static thread_local int cached_found = -1;
static thread_local const char *cached_id = NULL;
- const char *_id = NULL;
+ const char *_id = NULL, *_id_cpuid = NULL;
int r;
if (_likely_(cached_found >= 0)) {
@@ -197,10 +197,26 @@ int detect_vm(const char **id) {
/* this will set _id to "other" and return 0 for unknown hypervisors */
r = detect_vm_cpuid(&_id);
- if (r != 0)
+
+ /* finish when found a known hypervisor other than kvm */
+ if (r < 0 || (r > 0 && !streq(_id, "kvm")))
goto finish;
+ _id_cpuid = _id;
+
r = detect_vm_dmi(&_id);
+
+ /* kvm with and without Virtualbox */
+ if (streq_ptr(_id_cpuid, "kvm")) {
+ if (r > 0 && streq(_id, "oracle"))
+ goto finish;
+
+ _id = _id_cpuid;
+ r = 1;
+ goto finish;
+ }
+
+ /* information from dmi */
if (r != 0)
goto finish;
@@ -293,8 +309,26 @@ int detect_container(const char **id) {
r = read_one_line_file("/run/systemd/container", &m);
if (r == -ENOENT) {