Re: [PATCH v8 1/7] xen/pvh: Split CONFIG_XEN_PVH into CONFIG_PVH and CONFIG_XEN_PVH
From: Paolo Bonzini
Date: Fri Dec 07 2018 - 08:41:57 EST
On 07/12/18 07:02, Juergen Gross wrote:
> On 06/12/2018 23:11, Paolo Bonzini wrote:
>> On 06/12/18 07:04, Maran Wilson wrote:
>>> +config PVH
>>> + bool "Support for running PVH guests"
>>> + ---help---
>>> + This option enables the PVH entry point for guest virtual machines
>>> + as specified in the x86/HVM direct boot ABI.
>>> +
>>
>> IIUC this breaks "normal" bzImage boot, so we should have something like
>>
>> The resulting kernel will not boot with most x86 boot loaders
>> such as GRUB or SYSLINUX. Unless you plan to start the kernel
>> using QEMU or Xen, you probably want to say N here.
>
> The resulting kernel should be able to be booted either in PVH mode
> via the PVH entry point or the "normal" way via the still existing
> old entry point(s).
>
> It is an _additional_ way to boot the kernel, not an exclusive
> alternative.
Yup, understood now. Different binaries but one build.
Paolo