Hi all.
I have an ubuntu 18.04 LTS with edge kernel (v5), and I set up xen with
these options:
GRUB_CMDLINE_LINUX_DEFAULT="nomodeset nosplash quiet"
GRUB_CMDLINE_LINUX="ipv6.disable=1"
GRUB_CMDLINE_XEN_DEFAULT="dom0=pvh dom0_mem=4096M,max:4096M
dom0_max_vcpus=4 dom0_vcpus_pin"
without dom0=pvh everything works as expected. WITH dom0=pvh I have
network and I can SSH on the server, but I cannot see anything on the
screen. keystrokes via the keyboard are going in. The monitor does not
turn into sleep, but it is active, but completely blank. Not even a
cursor blinking.
I guess in pvh0 mode I should add something to the boot line to have the
phisical console enabled. Unfortunately both console=vga and
console=hvc0 turned to be efectless.
Does anyone has idea how can I bring back the local login screen (tty
console) while using dom0=pvh?
Also, for some reason I still see the qemu process running (even tough
that I should not need it ut I should not need it for dom0 pvh):
/usr/bin/qemu-system-i386 -xen-domid 0 -xen-attach -name dom0
-nographic -M xenpv -daemonize -monitor /dev/null -serial /dev/null
-parallel /dev/null -nodefaults -no-user-config -pidfile
/var/run/xen/qemu-dom0.pid
Thank you.
Part of the xl dmesg:
(XEN) Detected 2400.105 MHz processor.
(XEN) Initing memory sharing.
(XEN) Intel VT-d iommu 0 supported page sizes: 4kB.
(XEN) Intel VT-d Snoop Control enabled.
(XEN) Intel VT-d Dom0 DMA Passthrough not enabled.
(XEN) Intel VT-d Queued Invalidation enabled.
(XEN) Intel VT-d Interrupt Remapping enabled.
(XEN) Intel VT-d Posted Interrupt not enabled.
(XEN) Intel VT-d Shared EPT tables not enabled.
(XEN) I/O virtualisation enabled
(XEN) - Dom0 mode: Relaxed
(XEN) Interrupt remapping enabled
(XEN) Enabled directed EOI with ioapic_ack_old on!
(XEN) ENABLING IO-APIC IRQs
(XEN) -> Using old ACK method
(XEN) Allocated console ring of 32 KiB.
(XEN) VMX: Supported advanced features:
(XEN) - APIC MMIO access virtualisation
(XEN) - APIC TPR shadow
(XEN) - Extended Page Tables (EPT)
(XEN) - Virtual-Processor Identifiers (VPID)
(XEN) - Virtual NMI
(XEN) - MSR direct-access bitmap
(XEN) - Unrestricted Guest
(XEN) HVM: ASIDs enabled.
(XEN) HVM: VMX enabled
(XEN) HVM: Hardware Assisted Paging (HAP) detected
(XEN) HVM: HAP page sizes: 4kB, 2MB, 1GB
(XEN) Brought up 16 CPUs
(XEN) Dom0 has maximum 816 PIRQs
(XEN) WARNING: PVH is an experimental mode with limited functionality
(XEN) Initial low memory virq threshold set at 0x4000 pages.
(XEN) Scrubbing Free RAM in background
(XEN) Std. Loglevel: Errors and warnings
(XEN) Guest Loglevel: Nothing (Rate-limited: Errors and warnings)
--
?li?s Tam?s
Thomas Elias
ETIT[nwpro] KFT, ?gyvezet?-H?l?zatbiztons?gi specialista
ETIT[nwpro] Ltd, General Manager-Network security specialist
Tel. HU: +36/30-497-1626
OpenPGP pubkey: http://etit.hu/doc/et-pub.asc
Okleveles m?rn?k-informatikus (MSC)
Master of Science in Information Technology (MSC)
Licenced Penetration Tester (TM15-047)
Kapcsolat: http://etit.hu/index.php/hu/kapcsolat
Jogi nyilatkozat: http://etit.hu/disclaimer-email-hu.txt
Contact: http://etit.hu/index.php/en/contact
Disclaimer: http://etit.hu/disclaimer-email-en.txt
I have an ubuntu 18.04 LTS with edge kernel (v5), and I set up xen with
these options:
GRUB_CMDLINE_LINUX_DEFAULT="nomodeset nosplash quiet"
GRUB_CMDLINE_LINUX="ipv6.disable=1"
GRUB_CMDLINE_XEN_DEFAULT="dom0=pvh dom0_mem=4096M,max:4096M
dom0_max_vcpus=4 dom0_vcpus_pin"
without dom0=pvh everything works as expected. WITH dom0=pvh I have
network and I can SSH on the server, but I cannot see anything on the
screen. keystrokes via the keyboard are going in. The monitor does not
turn into sleep, but it is active, but completely blank. Not even a
cursor blinking.
I guess in pvh0 mode I should add something to the boot line to have the
phisical console enabled. Unfortunately both console=vga and
console=hvc0 turned to be efectless.
Does anyone has idea how can I bring back the local login screen (tty
console) while using dom0=pvh?
Also, for some reason I still see the qemu process running (even tough
that I should not need it ut I should not need it for dom0 pvh):
/usr/bin/qemu-system-i386 -xen-domid 0 -xen-attach -name dom0
-nographic -M xenpv -daemonize -monitor /dev/null -serial /dev/null
-parallel /dev/null -nodefaults -no-user-config -pidfile
/var/run/xen/qemu-dom0.pid
Thank you.
Part of the xl dmesg:
(XEN) Detected 2400.105 MHz processor.
(XEN) Initing memory sharing.
(XEN) Intel VT-d iommu 0 supported page sizes: 4kB.
(XEN) Intel VT-d Snoop Control enabled.
(XEN) Intel VT-d Dom0 DMA Passthrough not enabled.
(XEN) Intel VT-d Queued Invalidation enabled.
(XEN) Intel VT-d Interrupt Remapping enabled.
(XEN) Intel VT-d Posted Interrupt not enabled.
(XEN) Intel VT-d Shared EPT tables not enabled.
(XEN) I/O virtualisation enabled
(XEN) - Dom0 mode: Relaxed
(XEN) Interrupt remapping enabled
(XEN) Enabled directed EOI with ioapic_ack_old on!
(XEN) ENABLING IO-APIC IRQs
(XEN) -> Using old ACK method
(XEN) Allocated console ring of 32 KiB.
(XEN) VMX: Supported advanced features:
(XEN) - APIC MMIO access virtualisation
(XEN) - APIC TPR shadow
(XEN) - Extended Page Tables (EPT)
(XEN) - Virtual-Processor Identifiers (VPID)
(XEN) - Virtual NMI
(XEN) - MSR direct-access bitmap
(XEN) - Unrestricted Guest
(XEN) HVM: ASIDs enabled.
(XEN) HVM: VMX enabled
(XEN) HVM: Hardware Assisted Paging (HAP) detected
(XEN) HVM: HAP page sizes: 4kB, 2MB, 1GB
(XEN) Brought up 16 CPUs
(XEN) Dom0 has maximum 816 PIRQs
(XEN) WARNING: PVH is an experimental mode with limited functionality
(XEN) Initial low memory virq threshold set at 0x4000 pages.
(XEN) Scrubbing Free RAM in background
(XEN) Std. Loglevel: Errors and warnings
(XEN) Guest Loglevel: Nothing (Rate-limited: Errors and warnings)
--
?li?s Tam?s
Thomas Elias
ETIT[nwpro] KFT, ?gyvezet?-H?l?zatbiztons?gi specialista
ETIT[nwpro] Ltd, General Manager-Network security specialist
Tel. HU: +36/30-497-1626
OpenPGP pubkey: http://etit.hu/doc/et-pub.asc
Okleveles m?rn?k-informatikus (MSC)
Master of Science in Information Technology (MSC)
Licenced Penetration Tester (TM15-047)
Kapcsolat: http://etit.hu/index.php/hu/kapcsolat
Jogi nyilatkozat: http://etit.hu/disclaimer-email-hu.txt
Contact: http://etit.hu/index.php/en/contact
Disclaimer: http://etit.hu/disclaimer-email-en.txt