From: Paolo Bonzini <pbonzini@redhat.com>
To: Jordan Justen <jljusten@gmail.com>
Cc: Jordan Justen <jordan.l.justen@intel.com>,
qemu-devel <qemu-devel@nongnu.org>
Subject: Re: [Qemu-devel] [PATCH 6/6] pc_sysfw: change rom_only default to 0
Date: Mon, 29 Apr 2013 23:10:17 +0200 [thread overview]
Message-ID: <517EE1B9.90609@redhat.com> (raw)
In-Reply-To: <CAFe8ug_Q8Z95DVr+BUTDw9nYt1kXv_g_1zedKrOvbspiUxNnvA@mail.gmail.com>
Il 29/04/2013 20:23, Jordan Justen ha scritto:
> On Mon, Apr 29, 2013 at 1:20 AM, Paolo Bonzini <pbonzini@redhat.com> wrote:
>> Il 28/04/2013 10:32, Jordan Justen ha scritto:
>>> Now KVM can support a flash memory. This feature depends on
>>> KVM_CAP_READONLY_MEM, which was introduced in Linux 3.7.
>>
>> I don't think we can require such a new kernel to run KVM. IIUC, an
>> older kernel would just fail to start, right?
>
> Would it also be unacceptable to alter the behavior based on the kvm
> capabilities? So, we can't use rom-mode for old kvm, but flash mode
> for new kvm? (In other words, behave similarly to qemu 1.2-1.4 in kvm
> vs. non-kvm mode.)
No, unfortunately the host versions must not affect the hardware.
Paolo
next prev parent reply other threads:[~2013-04-29 21:10 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-04-28 8:32 [Qemu-devel] [PATCH 0/6] KVM flash memory support Jordan Justen
2013-04-28 8:32 ` [Qemu-devel] [PATCH 1/6] kvm: add kvm_readonly_mem_enabled Jordan Justen
2013-04-29 10:27 ` Jan Kiszka
2013-04-28 8:32 ` [Qemu-devel] [PATCH 2/6] kvm: support using KVM_MEM_READONLY flag for readonly regions Jordan Justen
2013-05-03 6:02 ` Xiao Guangrong
2013-04-28 8:32 ` [Qemu-devel] [PATCH 3/6] kvm: workaround a possible KVM bug when using KVM_MEM_READONLY Jordan Justen
2013-04-29 10:29 ` Jan Kiszka
2013-04-29 18:37 ` Jordan Justen
2013-05-03 6:13 ` Xiao Guangrong
2013-04-28 8:32 ` [Qemu-devel] [PATCH 4/6] pflash_cfi01: memory region should be set to enable readonly mode Jordan Justen
2013-04-28 8:32 ` [Qemu-devel] [PATCH 5/6] pc_sysfw: allow flash memory to be used with KVM Jordan Justen
2013-04-28 8:32 ` [Qemu-devel] [PATCH 6/6] pc_sysfw: change rom_only default to 0 Jordan Justen
2013-04-29 8:20 ` Paolo Bonzini
2013-04-29 18:23 ` Jordan Justen
2013-04-29 21:10 ` Paolo Bonzini [this message]
2013-04-30 3:51 ` Jordan Justen
2013-04-30 7:24 ` Paolo Bonzini
2013-04-29 14:00 ` Markus Armbruster
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