linux-kernel - Re: [PATCH v8 1/7] xen/pvh: Split CONFIG_XEN_PVH into CONFIG_PVH and CONFIG_XEN

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Message-ID: <d0fd8799-35ea-fba5-9d0d-94feead85943@redhat.com>
Date:   Fri, 7 Dec 2018 14:52:55 +0100
From:   Paolo Bonzini <pbonzini@...hat.com>
To:     Juergen Gross <jgross@...e.com>,
        Maran Wilson <maran.wilson@...cle.com>, x86@...nel.org,
        linux-kernel@...r.kernel.org, xen-devel@...ts.xenproject.org,
        kvm@...r.kernel.org
Cc:     tglx@...utronix.de, mingo@...hat.com, hpa@...or.com,
        boris.ostrovsky@...cle.com, jpoimboe@...hat.com,
        kirill.shutemov@...ux.intel.com, bp@...e.de,
        thomas.lendacky@....com, luto@...nel.org,
        dave.hansen@...ux.intel.com, roger.pau@...rix.com,
        rkrcmar@...hat.com, rdunlap@...radead.org
Subject: Re: [PATCH v8 1/7] xen/pvh: Split CONFIG_XEN_PVH into CONFIG_PVH and
 CONFIG_XEN_PVH

On 07/12/18 14:50, Juergen Gross wrote:
> The PVH boot entry is in the same bzImage binary as the normal one.
> Its just another entry, similar to the Xen PV boot entry. So the binary
> arch/x86/boot/bzimage can be booted either on bare metal via grub2 or
> other boot-loaders, as Xen PV-guest, as Xen PVH-guest, or as KVM
> PVH-guest. So one build and one binary. The non-standard boot entries
> (PV- or PVH-node) are found via ELF-notes by the boot loader (qemu in
> case of KVM).
> 

But the bzImage is not an ELF binary, and it is compressed, isn't it?
/me is confused. :)

Paolo