[lkml]   [2018]   [Dec]   [6]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
Messages in this thread
SubjectRe: [PATCH v8 1/7] xen/pvh: Split CONFIG_XEN_PVH into CONFIG_PVH and CONFIG_XEN_PVH
On 12/6/18 5:11 PM, 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

Grub support for PVH guests (for Xen) is well under way.

> or SYSLINUX. Unless you plan to start the kernel
> using QEMU or Xen, you probably want to say N here.

I think PVH should not be user-selectable at all. It should be selected
by either XEN_PVH or KVM_GUEST_PVH (which you suggested to drop).

> and also
> depends on !EFI
> because even though in principle it would be possible to write a PVH
> loader for UEFI, PVH's start info does not support the EFI handover
> protocol.

But we should be able to build the binary with both EFI and PVH?


 \ /
  Last update: 2018-12-06 23:38    [W:0.117 / U:8.136 seconds]
©2003-2018 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site