Re: Detecting whether dom0 is in a VM

2024-04-22 Thread Jürgen Groß
On 22.04.24 09:12, Jan Beulich wrote: On 19.04.2024 17:29, George Dunlap wrote: On Fri, Jul 7, 2023 at 3:56 PM George Dunlap wrote: Xen's public interface offers access to the featuresets known / found / used by the hypervisor. See XEN_SYSCTL_get_cpu_featureset, accessible via xc_get_cpu_featu

Re: Detecting whether dom0 is in a VM

2024-04-22 Thread Stefano Stabellini
On Mon, 22 Apr 2024, Jan Beulich wrote: > On 19.04.2024 17:29, George Dunlap wrote: > > On Fri, Jul 7, 2023 at 3:56 PM George Dunlap > > wrote: > >> Xen's public interface offers access to the featuresets known / found / > >> used by the hypervisor. See XEN_SYSCTL_get_cpu_featureset, acce

Re: Detecting whether dom0 is in a VM

2024-04-22 Thread Jan Beulich
On 19.04.2024 17:29, George Dunlap wrote: > On Fri, Jul 7, 2023 at 3:56 PM George Dunlap wrote: >> Xen's public interface offers access to the featuresets known / found / >> used by the hypervisor. See XEN_SYSCTL_get_cpu_featureset, accessible >> via xc_get_cpu_featureset(). >> >>>

Re: Detecting whether dom0 is in a VM

2024-04-22 Thread Jan Beulich
On 19.04.2024 17:51, George Dunlap wrote: > On Fri, Apr 19, 2024 at 4:29 PM George Dunlap wrote: >> >> On Fri, Jul 7, 2023 at 3:56 PM George Dunlap wrote: >>> Xen's public interface offers access to the featuresets known / found / >>> used by the hypervisor. See XEN_SYSCTL_get_cpu_feature

Re: Detecting whether dom0 is in a VM

2024-04-19 Thread George Dunlap
On Fri, Apr 19, 2024 at 4:29 PM George Dunlap wrote: > > On Fri, Jul 7, 2023 at 3:56 PM George Dunlap wrote: > >> >>> Xen's public interface offers access to the featuresets known / found / > >> >>> used by the hypervisor. See XEN_SYSCTL_get_cpu_featureset, accessible > >> >>> via xc_get_cpu_feat

Re: Detecting whether dom0 is in a VM

2024-04-19 Thread George Dunlap
On Fri, Jul 7, 2023 at 3:56 PM George Dunlap wrote: >> >>> Xen's public interface offers access to the featuresets known / found / >> >>> used by the hypervisor. See XEN_SYSCTL_get_cpu_featureset, accessible >> >>> via xc_get_cpu_featureset(). >> >>> >> >> >> >> Are any of these exposed in dom0 vi

Re: Detecting whether dom0 is in a VM

2023-07-07 Thread George Dunlap
On Fri, Jul 7, 2023 at 12:45 PM Jan Beulich wrote: > On 07.07.2023 12:16, Jan Beulich wrote: > > On 07.07.2023 11:52, George Dunlap wrote: > >> On Fri, Jul 7, 2023 at 9:00 AM Jan Beulich wrote: > >> > >>> On 06.07.2023 17:35, zithro wrote: > On 06 Jul 2023 09:02, Jan Beulich wrote: > >

Re: Detecting whether dom0 is in a VM

2023-07-07 Thread George Dunlap
On Fri, Jul 7, 2023 at 11:17 AM Jan Beulich wrote: > On 07.07.2023 11:52, George Dunlap wrote: > > On Fri, Jul 7, 2023 at 9:00 AM Jan Beulich wrote: > > > >> On 06.07.2023 17:35, zithro wrote: > >>> On 06 Jul 2023 09:02, Jan Beulich wrote: > On 05.07.2023 18:20, zithro wrote: > > So I'm

Re: Detecting whether dom0 is in a VM

2023-07-07 Thread Jan Beulich
On 07.07.2023 12:16, Jan Beulich wrote: > On 07.07.2023 11:52, George Dunlap wrote: >> On Fri, Jul 7, 2023 at 9:00 AM Jan Beulich wrote: >> >>> On 06.07.2023 17:35, zithro wrote: On 06 Jul 2023 09:02, Jan Beulich wrote: > On 05.07.2023 18:20, zithro wrote: >> So I'm wondering, isn't t

Re: Detecting whether dom0 is in a VM

2023-07-07 Thread Jan Beulich
On 07.07.2023 11:52, George Dunlap wrote: > On Fri, Jul 7, 2023 at 9:00 AM Jan Beulich wrote: > >> On 06.07.2023 17:35, zithro wrote: >>> On 06 Jul 2023 09:02, Jan Beulich wrote: On 05.07.2023 18:20, zithro wrote: > So I'm wondering, isn't that path enough for correct detection ? > I

Re: Detecting whether dom0 is in a VM

2023-07-07 Thread George Dunlap
On Fri, Jul 7, 2023 at 9:00 AM Jan Beulich wrote: > On 06.07.2023 17:35, zithro wrote: > > On 06 Jul 2023 09:02, Jan Beulich wrote: > >> On 05.07.2023 18:20, zithro wrote: > >>> So I'm wondering, isn't that path enough for correct detection ? > >>> I mean, if "/sys/class/dmi/id/sys_vendor" report

Re: Detecting whether dom0 is in a VM

2023-07-07 Thread Jan Beulich
On 06.07.2023 17:35, zithro wrote: > On 06 Jul 2023 09:02, Jan Beulich wrote: >> On 05.07.2023 18:20, zithro wrote: >>> So I'm wondering, isn't that path enough for correct detection ? >>> I mean, if "/sys/class/dmi/id/sys_vendor" reports Xen (or KVM, or any >>> other known hypervisor), it's nested

Re: Detecting whether dom0 is in a VM

2023-07-06 Thread Yann Dirson
On 7/6/23 17:35, zithro wrote: > On 06 Jul 2023 09:02, Jan Beulich wrote: >> On 05.07.2023 18:20, zithro wrote: >>> So I'm wondering, isn't that path enough for correct detection ? >>> I mean, if "/sys/class/dmi/id/sys_vendor" reports Xen (or KVM, or any >>> other known hypervisor), it's nested,

Re: Detecting whether dom0 is in a VM

2023-07-06 Thread zithro
On 06 Jul 2023 09:02, Jan Beulich wrote: On 05.07.2023 18:20, zithro wrote: So I'm wondering, isn't that path enough for correct detection ? I mean, if "/sys/class/dmi/id/sys_vendor" reports Xen (or KVM, or any other known hypervisor), it's nested, otherwise it's on hardware ? Is that really ma

Re: Detecting whether dom0 is in a VM

2023-07-06 Thread Jan Beulich
On 05.07.2023 18:20, zithro wrote: > On 05 Jul 2023 17:51, George Dunlap wrote: >> Hey all, >> >> The following systemd issue was brought to my attention: >> >> https://github.com/systemd/systemd/issues/28113 >> >> I think basically, they want `systemd-detect-virt` return the following >> values: >

Re: Detecting whether dom0 is in a VM

2023-07-05 Thread zithro
On 05 Jul 2023 17:51, George Dunlap wrote: Hey all, The following systemd issue was brought to my attention: https://github.com/systemd/systemd/issues/28113 I think basically, they want `systemd-detect-virt` return the following values: Xen on hardware, from a dom0: `none` Xen on hardware, f

Detecting whether dom0 is in a VM

2023-07-05 Thread George Dunlap
Hey all, The following systemd issue was brought to my attention: https://github.com/systemd/systemd/issues/28113 I think basically, they want `systemd-detect-virt` return the following values: Xen on hardware, from a dom0: `none` Xen on hardware, from a domU: `xen` Xen in a VM, from a dom0: (