linux-kernel - Re: [PATCH] x86: Add a Kconfig shortcut for a kvm-bootable kernel

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Date:	Tue, 16 Apr 2013 18:18:52 +0200
From:	Borislav Petkov <bp@...en8.de>
To:	Pekka Enberg <penberg@...nel.org>
Cc:	Ingo Molnar <mingo@...nel.org>, "H. Peter Anvin" <hpa@...or.com>,
	Sasha Levin <levinsasha928@...il.com>,
	Fengguang Wu <fengguang.wu@...el.com>,
	lkml <linux-kernel@...r.kernel.org>, x86-ml <x86@...nel.org>,
	kvm@...r.kernel.org
Subject: Re: [PATCH] x86: Add a Kconfig shortcut for a kvm-bootable kernel

On Sun, Apr 14, 2013 at 01:03:20PM +0200, Borislav Petkov wrote:
> On Sun, Apr 14, 2013 at 12:31:12PM +0300, Pekka Enberg wrote:
> > I obviously support having something like this in mainline. I wonder
> > though if we could just call this "default standalone KVM guest
> > config" instead of emphasizing testing angle.
> 
> /me nods agreeingly...
> 
> And it should be unter HYPERVISOR_GUEST where the rest of this stuff
> resides. Good point.

Sanity check question:

Why not add the select stuff, i.e. this:

	select NET
	select NETDEVICES
	select PCI
	select BLOCK
	select BLK_DEV
	select NETWORK_FILESYSTEMS
	select INET
	select EXPERIMENTAL
	select TTY
	select SERIAL_8250
	select SERIAL_8250_CONSOLE
	select IP_PNP
	select IP_PNP_DHCP
	select BINFMT_ELF
	select PCI_MSI
	select HAVE_ARCH_KGDB
	select DEBUG_KERNEL
	select KGDB
	select KGDB_SERIAL_CONSOLE
	select VIRTUALIZATION
	select VIRTIO
	select VIRTIO_RING
	select VIRTIO_PCI
	select VIRTIO_BLK
	select VIRTIO_CONSOLE
	select VIRTIO_NET
	select 9P_FS
	select NET_9P
	select NET_9P_VIRTIO

to the option below which we already have. It is in the same sense a KVM
guest support deal.

Hmm.

KVM people, any objections?

config KVM_GUEST
        bool "KVM Guest support (including kvmclock)"
        depends on PARAVIRT
        select PARAVIRT_CLOCK
        default y
        ---help---
          This option enables various optimizations for running under the KVM
          hypervisor. It includes a paravirtualized clock, so that instead
          of relying on a PIT (or probably other) emulation by the
          underlying device model, the host provides the guest with
          timing infrastructure such as time of day, and system time

-- 
Regards/Gruss,
    Boris.

Sent from a fat crate under my desk. Formatting is fine.
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