Re: [Xen-devel] [PATCH 3/3] x86/xen: use guest_late_init to detect Xen PVH guest

On 11/08/2017 09:17 AM, Juergen Gross wrote: > On 08/11/17 15:10, Boris Ostrovsky wrote: >> On 11/08/2017 08:36 AM, Juergen Gross wrote: >>> Regarding ACPI tables: current PVH implementation in Linux kernel >>> seems not to make use of the special information presented in the boot >>> information

Re: [Xen-devel] [PATCH 3/3] x86/xen: use guest_late_init to detect Xen PVH guest

On 08/11/17 15:10, Boris Ostrovsky wrote: > On 11/08/2017 08:36 AM, Juergen Gross wrote: >> >> Regarding ACPI tables: current PVH implementation in Linux kernel >> seems not to make use of the special information presented in the boot >> information block. > > It will need to do so for dom0 (and,

Re: [Xen-devel] [PATCH 3/3] x86/xen: use guest_late_init to detect Xen PVH guest

On 11/08/2017 08:36 AM, Juergen Gross wrote: > > Regarding ACPI tables: current PVH implementation in Linux kernel > seems not to make use of the special information presented in the boot > information block. It will need to do so for dom0 (and, then, for simplicity, for all PVH guests). -boris

Re: [Xen-devel] [PATCH 3/3] x86/xen: use guest_late_init to detect Xen PVH guest

On 08/11/17 13:58, Jan Beulich wrote: On 08.11.17 at 13:45, wrote: >> On 08/11/17 13:31, Jan Beulich wrote: >> On 08.11.17 at 12:55, wrote: On 08/11/17 12:18, Jan Beulich wrote: On 08.11.17 at 10:07, wrote: >> In case

Re: [Xen-devel] [PATCH 3/3] x86/xen: use guest_late_init to detect Xen PVH guest

>>> On 08.11.17 at 13:45, wrote: > On 08/11/17 13:31, Jan Beulich wrote: > On 08.11.17 at 12:55, wrote: >>> On 08/11/17 12:18, Jan Beulich wrote: >>> On 08.11.17 at 10:07, wrote: > In case we are booted via the default boot entry by

Re: [Xen-devel] [PATCH 3/3] x86/xen: use guest_late_init to detect Xen PVH guest

On 08/11/17 13:31, Jan Beulich wrote: On 08.11.17 at 12:55, wrote: >> On 08/11/17 12:18, Jan Beulich wrote: >> On 08.11.17 at 10:07, wrote: In case we are booted via the default boot entry by a generic loader like grub or OVMF it is necessary

Re: [Xen-devel] [PATCH 3/3] x86/xen: use guest_late_init to detect Xen PVH guest

On 08/11/17 13:26, Paolo Bonzini wrote: > On 08/11/2017 13:24, Juergen Gross wrote: >>> My understanding of Xen is very rusty at this point, but I think a >>> "completely" legacy-free HVM domain will still have a PCI bus and the >>> Xen platform device on that bus. >>> >>> A PVH domain just knows

Re: [Xen-devel] [PATCH 3/3] x86/xen: use guest_late_init to detect Xen PVH guest

>>> On 08.11.17 at 12:55, wrote: > On 08/11/17 12:18, Jan Beulich wrote: > On 08.11.17 at 10:07, wrote: >>> In case we are booted via the default boot entry by a generic loader >>> like grub or OVMF it is necessary to distinguish between a HVM guest >>> with

Re: [Xen-devel] [PATCH 3/3] x86/xen: use guest_late_init to detect Xen PVH guest

On 08/11/2017 13:24, Juergen Gross wrote: >> My understanding of Xen is very rusty at this point, but I think a >> "completely" legacy-free HVM domain will still have a PCI bus and the >> Xen platform device on that bus. >> >> A PVH domain just knows how to access the Xen PV features. > > A HVM

Re: [Xen-devel] [PATCH 3/3] x86/xen: use guest_late_init to detect Xen PVH guest

On 08/11/17 13:03, Paolo Bonzini wrote: > On 08/11/2017 12:55, Juergen Gross wrote: >> On 08/11/17 12:18, Jan Beulich wrote: >> On 08.11.17 at 10:07, wrote: In case we are booted via the default boot entry by a generic loader like grub or OVMF it is necessary to

Re: [Xen-devel] [PATCH 3/3] x86/xen: use guest_late_init to detect Xen PVH guest

On 08/11/2017 12:55, Juergen Gross wrote: > On 08/11/17 12:18, Jan Beulich wrote: > On 08.11.17 at 10:07, wrote: >>> In case we are booted via the default boot entry by a generic loader >>> like grub or OVMF it is necessary to distinguish between a HVM guest >>> with a device

Re: [Xen-devel] [PATCH 3/3] x86/xen: use guest_late_init to detect Xen PVH guest

On 08/11/17 12:18, Jan Beulich wrote: On 08.11.17 at 10:07, wrote: >> In case we are booted via the default boot entry by a generic loader >> like grub or OVMF it is necessary to distinguish between a HVM guest >> with a device model supporting legacy devices and a PVH guest

Re: [Xen-devel] [PATCH 3/3] x86/xen: use guest_late_init to detect Xen PVH guest

>>> On 08.11.17 at 10:07, wrote: > In case we are booted via the default boot entry by a generic loader > like grub or OVMF it is necessary to distinguish between a HVM guest > with a device model supporting legacy devices and a PVH guest without > device model. > > PVH guests

[Xen-devel] [PATCH 3/3] x86/xen: use guest_late_init to detect Xen PVH guest

In case we are booted via the default boot entry by a generic loader like grub or OVMF it is necessary to distinguish between a HVM guest with a device model supporting legacy devices and a PVH guest without device model. PVH guests will always have x86_platform.legacy.no_vga set and