<![CDATA[Windows 2016 HVM or PVHVM]]>Hello,

Any clarification on this would be appreciated.

I have some Windows 2016 VMs that have 'Windows Update tools' enabled, PV drivers are installed onto the system, however in XO the mode is Hardware virtualization (HVM), however if I install the Citrix Management agent, the mode changes to Hardware virtualization with paravirtualization drivers enabled (PVHVM). I have checked the drivers and they are identical, I'm not quite sure why the modes have changed, has the mode changed or has the reporting in XO changed because of the agent install?

Thanks

]]>https://xcp-ng.org/forum/topic/3444/windows-2016-hvm-or-pvhvmRSS for NodeSun, 11 Oct 2026 02:37:39 GMTTue, 18 Aug 2020 15:04:26 GMT60<![CDATA[Reply to Windows 2016 HVM or PVHVM on Wed, 19 Aug 2020 11:47:01 GMT]]>Which is exactly the right behavior! Perfect 🙂 Thanks for the feedback.

]]>https://xcp-ng.org/forum/post/30264https://xcp-ng.org/forum/post/30264Wed, 19 Aug 2020 11:47:01 GMT<![CDATA[Reply to Windows 2016 HVM or PVHVM on Wed, 19 Aug 2020 11:45:35 GMT]]>Thanks @olivierlambert

I changed the release channel to 'latest' and updated to xo-server 5.64.1
/ xo-web 5.67.0

Both now report as being PVHVM with the additional "Management agent 7.2 detected" / "Management agent not detected"

Thanks

]]>https://xcp-ng.org/forum/post/30263https://xcp-ng.org/forum/post/30263Wed, 19 Aug 2020 11:45:35 GMT<![CDATA[Reply to Windows 2016 HVM or PVHVM on Wed, 19 Aug 2020 09:45:49 GMT]]>So you are indeed using a fairly outdated release. xo-web 5.67.0 was released with XOA Latest channel.

With the new version, you'll have a proper display of the mode and if there's the agent installed or not 🙂

]]>https://xcp-ng.org/forum/post/30261https://xcp-ng.org/forum/post/30261Wed, 19 Aug 2020 09:45:49 GMT<![CDATA[Reply to Windows 2016 HVM or PVHVM on Wed, 19 Aug 2020 09:06:45 GMT]]>Sorry, I have messed that up a bit!

Hardware virtualization (HVM)

# xe vm-param-list uuid=094095a8-cb25-ff8f-b5bf-818dc6d87448 |grep PV
                             PV-kernel ( RW):
                            PV-ramdisk ( RW):
                               PV-args ( RW):
                        PV-legacy-args ( RW):
                         PV-bootloader ( RW):
                    PV-bootloader-args ( RW):
                    PV-drivers-version (MRO):
    PV-drivers-up-to-date ( RO) [DEPRECATED]: true
                   PV-drivers-detected ( RO): true

Hardware virtualization with paravirtualization drivers enabled (PVHVM)

# xe vm-param-list uuid=b783132d-b76b-ab4d-4a39-a3f23e2cb07c  |grep PV
                             PV-kernel ( RW):
                            PV-ramdisk ( RW):
                               PV-args ( RW):
                        PV-legacy-args ( RW):
                         PV-bootloader ( RW):
                    PV-bootloader-args ( RW):
                    PV-drivers-version (MRO): major: 7; minor: 2; micro: 0; build: 1555
    PV-drivers-up-to-date ( RO) [DEPRECATED]: true
                   PV-drivers-detected ( RO): true

I am running xo-server 5.59.0, but the appliance itself is pretty old, I probably need to rebuild it from a later version.

]]>https://xcp-ng.org/forum/post/30260https://xcp-ng.org/forum/post/30260Wed, 19 Aug 2020 09:06:45 GMT<![CDATA[Reply to Windows 2016 HVM or PVHVM on Wed, 19 Aug 2020 09:00:36 GMT]]>You inverted both 😉 The one marked with PVHVM should have the PV driver version and vice versa.

Also, please just check if your XO is up to date, because we improved that reporting.

]]>https://xcp-ng.org/forum/post/30258https://xcp-ng.org/forum/post/30258Wed, 19 Aug 2020 09:00:36 GMT<![CDATA[Reply to Windows 2016 HVM or PVHVM on Wed, 19 Aug 2020 08:58:27 GMT]]>Yes, just really wanting to know why PVHVM is only present in XO after the manual agent install and a confirmation if possible that they're basically the same mode wise just presented differently. There is a discrepancy on the PV driver from that output:

Hardware virtualization (HVM)

PV-drivers-version (MRO): major: 7; minor: 2; micro: 0; build: 1555

Hardware virtualization with paravirtualization drivers enabled (PVHVM)

PV-drivers-version (MRO):
]]>https://xcp-ng.org/forum/post/30257https://xcp-ng.org/forum/post/30257Wed, 19 Aug 2020 08:58:27 GMT<![CDATA[Reply to Windows 2016 HVM or PVHVM on Wed, 19 Aug 2020 08:44:36 GMT]]>Okay so after carefully reading the first post:

  • Having the PV drivers installed via Windows update means you indeed have PV drivers in place. Which is good
  • … But it doesn't mean you have the agent! The agent is here to report Windows version details, RAM usage and other details (like PV driver version). It's a small service running, started on boot, reporting extra info to the hypervisor. This agent isn't installed via Windows Updates.

In theory, in recent versions of XO, we are now able to make the difference between just PV drivers installed versus PV drivers AND the management agent.

]]>https://xcp-ng.org/forum/post/30255https://xcp-ng.org/forum/post/30255Wed, 19 Aug 2020 08:44:36 GMT<![CDATA[Reply to Windows 2016 HVM or PVHVM on Wed, 19 Aug 2020 08:35:25 GMT]]>@olivierlambert said in Windows 2016 HVM or PVHVM:

xe vm-param-list uuid=<VM UUID>
Hardware virtualization (HVM)

uuid ( RO)                                  : 094095a8-cb25-ff8f-b5bf-818dc6d87448
                            name-label ( RW): Windows 2016 (HVM)
                      name-description ( RW): Windows 2016 (HVM)
                          user-version ( RW): 2
                         is-a-template ( RW): false
                   is-default-template ( RW): false
                         is-a-snapshot ( RO): false
                           snapshot-of ( RO): <not in database>
                             snapshots ( RO): 2fa90525-468f-b023-f2f7-2c6470e8a853; 2ac06157-9c4e-ed70-3619-80e60f3a7019
                         snapshot-time ( RO): 19700101T00:00:00Z
                         snapshot-info ( RO):
                                parent ( RO): 2ac06157-9c4e-ed70-3619-80e60f3a7019
                              children ( RO):
                     is-control-domain ( RO): false
                           power-state ( RO): running
                         memory-actual ( RO): 8589934592
                         memory-target ( RO): 0
                       memory-overhead ( RO): 73400320
                     memory-static-max ( RW): 8589934592
                    memory-dynamic-max ( RW): 8589934592
                    memory-dynamic-min ( RW): 8589934592
                     memory-static-min ( RW): 1073741824
                      suspend-VDI-uuid ( RW): <not in database>
                       suspend-SR-uuid ( RW): <not in database>
                          VCPUs-params (MRW): weight: 256
                             VCPUs-max ( RW): 4
                      VCPUs-at-startup ( RW): 4
                actions-after-shutdown ( RW): Destroy
                  actions-after-reboot ( RW): Restart
                   actions-after-crash ( RW): Restart
                         console-uuids (SRO): 1ec97d94-47d2-9124-a077-e17f8de52db6
                                   hvm ( RO): true
                              platform (MRW): timeoffset: 3598; videoram: 8; hpet: true; device-model: qemu-upstream-compat; apic: true; device_id: 0002; cores-per-socket: 2; pae: true; vga: std; nx: true; viridian_time_ref_count: true; viridian: true; acpi: 1; viridian_reference_tsc: true
                    allowed-operations (SRO): changing_dynamic_range; migrate_send; pool_migrate; suspend; hard_reboot; hard_shutdown; clean_reboot; clean_shutdown; pause; checkpoint; snapshot
                    current-operations (SRO):
                    blocked-operations (MRW):
					allowed-VBD-devices (SRO): 2; 4; 5; 6; 7; 8; 9; 10; 11; 12; 13; 14; 15; 16; 17; 18; 19; 20; 21; 22; 23; 24; 25; 26; 27; 28; 29; 30; 31; 32; 33; 34; 35; 36; 37; 38; 39; 40; 41; 42; 43; 44; 45; 46; 47; 48; 49; 50; 51; 52; 53; 54; 55; 56; 57; 58; 59; 60; 61; 62; 63; 64; 65; 66; 67; 68; 69; 70; 71; 72; 73; 74; 75; 76; 77; 78; 79; 80; 81; 82; 83; 84; 85; 86; 87; 88; 89; 90; 91; 92; 93; 94; 95; 96; 97; 98; 99; 100; 101; 102; 103; 104; 105; 106; 107; 108; 109; 110; 111; 112; 113; 114; 115; 116; 117; 118; 119; 120; 121; 122; 123; 124; 125; 126; 127; 128; 129; 130; 131; 132; 133; 134; 135; 136; 137; 138; 139; 140; 141; 142; 143; 144; 145; 146; 147; 148; 149; 150; 151; 152; 153; 154; 155; 156; 157; 158; 159; 160; 161; 162; 163; 164; 165; 166; 167; 168; 169; 170; 171; 172; 173; 174; 175; 176; 177; 178; 179; 180; 181; 182; 183; 184; 185; 186; 187; 188; 189; 190; 191; 192; 193; 194; 195; 196; 197; 198; 199; 200; 201; 202; 203; 204; 205; 206; 207; 208; 209; 210; 211; 212; 213; 214; 215; 216; 217; 218; 219; 220; 221; 222; 223; 224; 225; 226; 227; 228; 229; 230; 231; 232; 233; 234; 235; 236; 237; 238; 239; 240; 241; 242; 243; 244; 245; 246; 247; 248; 249; 250; 251; 252; 253; 254
                   allowed-VIF-devices (SRO): 1; 2; 3; 4; 5; 6
                        possible-hosts ( RO): 8d38c36c-eb67-4823-ba4b-05f60bae9dc9; 65ab2fdc-cc96-4e93-ac00-71dd409b6101
                           domain-type ( RW): hvm
                   current-domain-type ( RO): hvm
                       HVM-boot-policy ( RW): BIOS order
                       HVM-boot-params (MRW): order: c
                 HVM-shadow-multiplier ( RW): 1.000
                             PV-kernel ( RW):
                            PV-ramdisk ( RW):
                               PV-args ( RW):
                        PV-legacy-args ( RW):
                         PV-bootloader ( RW):
                    PV-bootloader-args ( RW):
                   last-boot-CPU-flags ( RO): vendor: GenuineIntel; features: 17cbfbff-f7fa3223-2d93fbff-00000123-00000001-001c0fbb-00000000-00000000-00001000-9c000400-00000000-00000000-00000000-00000000
                      last-boot-record ( RO): ''
                           resident-on ( RO): 65ab2fdc-cc96-4e93-ac00-71dd409b6101
                              affinity ( RW): <not in database>
                          other-config (MRW): import_task: OpaqueRef:5ecfcf41-8da9-4d52-bbe2-e58785ba50ae; xo:resource_set: "ztUeP5XFTVk"; instant: true; base_template_name: Windows Server 2016 (64-bit); mac_seed: 1321ad65-a344-f3e3-7d8a-c35df8d37694; install-methods: cdrom
                                dom-id ( RO): 5
                       recommendations ( RO): <restrictions><restriction field="memory-static-max" max="1649267441664"/><restriction field="vcpus-max" max="32"/><restriction field="has-vendor-device" value="true"/><restriction field="allow-network-sriov" value="1"/><restriction max="255" property="number-of-vbds"/><restriction max="7" property="number-of-vifs"/></restrictions>
                         xenstore-data (MRW): vm-data: ; vm-data/mmio-hole-size: 268435456
            ha-always-run ( RW) [DEPRECATED]: false
                   ha-restart-priority ( RW):
                                 blobs ( RO):
                            start-time ( RO): 20200727T00:08:39Z
                          install-time ( RO): 19700101T00:00:00Z
                          VCPUs-number ( RO): 4
                     VCPUs-utilisation (MRO): 0: 0.022; 1: 0.016; 2: 0.019; 3: 0.021
                            os-version (MRO):
							PV-drivers-version (MRO):
    PV-drivers-up-to-date ( RO) [DEPRECATED]: true
                                memory (MRO):
                                 disks (MRO):
                                  VBDs (SRO): dd170d9e-0e4f-702f-9557-bfec48035265; deeaf63b-e024-a157-51a9-892e4fbb2dcb; 933d8efb-4446-fac0-69fd-bd6063a83d9c
                              networks (MRO): 0/ip: 192.168.52.115; 0/ipv4/0: 192.168.52.115; 0/ipv6/0: fe80:0000:0000:0000:cc6c:b18a:e77c:5847
                   PV-drivers-detected ( RO): true
                                 other (MRO): platform-feature-multiprocessor-suspend: 1; has-vendor-device: 1; feature-suspend: 1; feature-balloon: 1; feature-poweroff: 1; feature-reboot: 1; feature-s3: 1; feature-s4: 1; feature-shutdown: 1
                                  live ( RO): true
            guest-metrics-last-updated ( RO): 20200727T00:11:46Z
                   can-use-hotplug-vbd ( RO): true
                   can-use-hotplug-vif ( RO): true
              cooperative ( RO) [DEPRECATED]: true
                                  tags (SRW):
                             appliance ( RW): <not in database>
                     snapshot-schedule ( RW): aa628084-49b0-c9e5-5230-2bef501300c6
                      is-vmss-snapshot ( RO): false
                           start-delay ( RW): 0
                        shutdown-delay ( RW): 0
                                 order ( RW): 0
                               version ( RO): 2
                         generation-id ( RO): 2695189925407817237:1100109927073744675
             hardware-platform-version ( RO): 2
                     has-vendor-device ( RW): true
                       requires-reboot ( RO): false
                       reference-label ( RO): windows-server-2016-64bit
                          bios-strings (MRO): bios-vendor: Xen; bios-version: ; system-manufacturer: Xen; system-product-name: HVM domU; system-version: ; system-serial-number: ; enclosure-asset-tag: ; hp-rombios: ; oem-1: Xen; oem-2: MS_VM_CERT/SHA1/bdbeb6e0a816d43fa6d3fe8aaef04c2bad9d3e3d

Hardware virtualization with paravirtualization drivers enabled (PVHVM)

uuid ( RO)                                  : b783132d-b76b-ab4d-4a39-a3f23e2cb07c
                            name-label ( RW): Windows 2016 (PVHVM)
                      name-description ( RW): Windows 2016 (PVHVM)
                          user-version ( RW): 2
                         is-a-template ( RW): false
                   is-default-template ( RW): false
                         is-a-snapshot ( RO): false
                           snapshot-of ( RO): <not in database>
                             snapshots ( RO): 10503218-40dd-5095-c1ec-b434ccfca7f9; ee3328d3-ec85-0efc-f65a-e580b4628681
                         snapshot-time ( RO): 19700101T00:00:00Z
                         snapshot-info ( RO):
                                parent ( RO): ee3328d3-ec85-0efc-f65a-e580b4628681
                              children ( RO):
                     is-control-domain ( RO): false
                           power-state ( RO): running
                         memory-actual ( RO): 8589934592
                         memory-target ( RO): 0
                       memory-overhead ( RO): 73400320
                     memory-static-max ( RW): 8589934592
                    memory-dynamic-max ( RW): 8589934592
                    memory-dynamic-min ( RW): 8589934592
                     memory-static-min ( RW): 1073741824
                      suspend-VDI-uuid ( RW): <not in database>
                       suspend-SR-uuid ( RW): <not in database>
                          VCPUs-params (MRW): weight: 256
                             VCPUs-max ( RW): 4
                      VCPUs-at-startup ( RW): 4
                actions-after-shutdown ( RW): Destroy
                  actions-after-reboot ( RW): Restart
                   actions-after-crash ( RW): Restart
                         console-uuids (SRO): 876eb207-46d5-791a-3ed1-28b0bac3fd50
                                   hvm ( RO): true
                              platform (MRW): timeoffset: 3600; videoram: 8; hpet: true; device-model: qemu-upstream-compat; apic: true; device_id: 0002; cores-per-socket: 2; pae: true; vga: std; nx: true; viridian_time_ref_count: true; viridian: true; acpi: 1; viridian_reference_tsc: true
                    allowed-operations (SRO): changing_dynamic_range; migrate_send; pool_migrate; changing_VCPUs_live; suspend; hard_reboot; hard_shutdown; clean_reboot; clean_shutdown; pause; checkpoint; snapshot
                    current-operations (SRO):
                    blocked-operations (MRW):
                   allowed-VBD-devices (SRO): 1; 2; 3; 4; 5; 6; 7; 8; 9; 10; 11; 12; 13; 14; 15; 16; 17; 18; 19; 20; 21; 22; 23; 24; 25; 26; 27; 28; 29; 30; 31; 32; 33; 34; 35; 36; 37; 38; 39; 40; 41; 42; 43; 44; 45; 46; 47; 48; 49; 50; 51; 52; 53; 54; 55; 56; 57; 58; 59; 60; 61; 62; 63; 64; 65; 66; 67; 68; 69; 70; 71; 72; 73; 74; 75; 76; 77; 78; 79; 80; 81; 82; 83; 84; 85; 86; 87; 88; 89; 90; 91; 92; 93; 94; 95; 96; 97; 98; 99; 100; 101; 102; 103; 104; 105; 106; 107; 108; 109; 110; 111; 112; 113; 114; 115; 116; 117; 118; 119; 120; 121; 122; 123; 124; 125; 126; 127; 128; 129; 130; 131; 132; 133; 134; 135; 136; 137; 138; 139; 140; 141; 142; 143; 144; 145; 146; 147; 148; 149; 150; 151; 152; 153; 154; 155; 156; 157; 158; 159; 160; 161; 162; 163; 164; 165; 166; 167; 168; 169; 170; 171; 172; 173; 174; 175; 176; 177; 178; 179; 180; 181; 182; 183; 184; 185; 186; 187; 188; 189; 190; 191; 192; 193; 194; 195; 196; 197; 198; 199; 200; 201; 202; 203; 204; 205; 206; 207; 208; 209; 210; 211; 212; 213; 214; 215; 216; 217; 218; 219; 220; 221; 222; 223; 224; 225; 226; 227; 228; 229; 230; 231; 232; 233; 234; 235; 236; 237; 238; 239; 240; 241; 242; 243; 244; 245; 246; 247; 248; 249; 250; 251; 252; 253; 254
                   allowed-VIF-devices (SRO): 0; 2; 3; 4; 5; 6
                        possible-hosts ( RO): 8d38c36c-eb67-4823-ba4b-05f60bae9dc9; 65ab2fdc-cc96-4e93-ac00-71dd409b6101
                           domain-type ( RW): hvm
                   current-domain-type ( RO): hvm
                       HVM-boot-policy ( RW): BIOS order
                       HVM-boot-params (MRW): order: c
                 HVM-shadow-multiplier ( RW): 1.000
                             PV-kernel ( RW):
                            PV-ramdisk ( RW):
                               PV-args ( RW):
                        PV-legacy-args ( RW):
                         PV-bootloader ( RW):
                    PV-bootloader-args ( RW):
					last-boot-CPU-flags ( RO): vendor: GenuineIntel; features: 1fcbfbff-f7fa3223-2d93fbff-00000523-0000000f-019c4fbb-00000008-00000000-00001000-9c000400-00000000-00000000-00000000-00000000
                      last-boot-record ( RO): ''
                           resident-on ( RO): 65ab2fdc-cc96-4e93-ac00-71dd409b6101
                              affinity ( RW): <not in database>
                          other-config (MRW): import_task: OpaqueRef:19995e32-87b6-41da-bd55-c3483038c373; base_template_name: Windows Server 2016 (64-bit); mac_seed: 0c225579-5b4a-0983-36dc-c331d27caf31; install-methods: cdrom; auto_poweron: false
                                dom-id ( RO): 36
                       recommendations ( RO): <restrictions><restriction field="memory-static-max" max="1649267441664"/><restriction field="vcpus-max" max="32"/><restriction field="has-vendor-device" value="true"/><restriction field="allow-network-sriov" value="1"/><restriction max="255" property="number-of-vbds"/><restriction max="7" property="number-of-vifs"/></restrictions>
                         xenstore-data (MRW): vm-data: ; vm-data/mmio-hole-size: 268435456
            ha-always-run ( RW) [DEPRECATED]: false
                   ha-restart-priority ( RW):
                                 blobs ( RO):
                            start-time ( RO): 20200814T08:38:09Z
                          install-time ( RO): 19700101T00:00:00Z
                          VCPUs-number ( RO): 4
                     VCPUs-utilisation (MRO): 0: 0.038; 1: 0.026; 2: 0.022; 3: 0.036
                            os-version (MRO): name: Microsoft Windows Server 2016 Standard|C:\Windows|\Device\Harddisk0\Partition2; distro: windows; major: 6; minor: 2; spmajor: 0; spminor: 0
                    PV-drivers-version (MRO): major: 7; minor: 2; micro: 0; build: 1555
    PV-drivers-up-to-date ( RO) [DEPRECATED]: true
                                memory (MRO):
                                 disks (MRO):
                                  VBDs (SRO): dfee0252-6edb-a58c-e30f-48ec6d52fcc7
                              networks (MRO): 1/ip: 192.168.52.10; 1/ipv4/0: 192.168.52.10; 1/ipv6/0: fe80:0000:0000:0000:dccd:43c6:c210:1f9d
                   PV-drivers-detected ( RO): true
                                 other (MRO): platform-feature-multiprocessor-suspend: 1; has-vendor-device: 1; feature-suspend: 1; feature-balloon: 1; feature-poweroff: 1; feature-reboot: 1; feature-s3: 1; feature-s4: 1; error: WTSQueryUserToken : 1008 failed.; feature-setcomputername: 1; feature-xs-batcmd: 1; feature-ts2: 1; feature-ts: 1; feature-static-ip-setting: 1; feature-wuRebootRequired: 1; data-ts: 1
                                  live ( RO): true
            guest-metrics-last-updated ( RO): 20200814T08:43:51Z
                   can-use-hotplug-vbd ( RO): true
                   can-use-hotplug-vif ( RO): true
              cooperative ( RO) [DEPRECATED]: true
                                  tags (SRW):
                             appliance ( RW): <not in database>
                     snapshot-schedule ( RW): aa628084-49b0-c9e5-5230-2bef501300c6
                      is-vmss-snapshot ( RO): false
                           start-delay ( RW): 0
                        shutdown-delay ( RW): 0
                                 order ( RW): 0
                               version ( RO): 3
                         generation-id ( RO): 4915069278103354312:7221504440612414521
             hardware-platform-version ( RO): 2
                     has-vendor-device ( RW): true
                       requires-reboot ( RO): false
                       reference-label ( RO): windows-server-2016-64bit
					   bios-strings (MRO): bios-vendor: Xen; bios-version: ; system-manufacturer: Xen; system-product-name: HVM domU; system-version: ; system-serial-number: ; enclosure-asset-tag: ; hp-rombios: ; oem-1: Xen; oem-2: MS_VM_CERT/SHA1/bdbeb6e0a816d43fa6d3fe8aaef04c2bad9d3e3d
]]>https://xcp-ng.org/forum/post/30254https://xcp-ng.org/forum/post/30254Wed, 19 Aug 2020 08:35:25 GMT<![CDATA[Reply to Windows 2016 HVM or PVHVM on Tue, 18 Aug 2020 16:54:26 GMT]]>Please paste here the content of xe vm-param-list uuid=<VM UUID>, so we can see in details in it's just cosmetic different or not 🙂

]]>https://xcp-ng.org/forum/post/30244https://xcp-ng.org/forum/post/30244Tue, 18 Aug 2020 16:54:26 GMT