On Mon, Oct 05, 2015 at 03:18:05PM +0200, Paolo Bonzini wrote:
>
>
> On 05/10/2015 14:50, Peter Maydell wrote:
> > If you want to try to support "firmware might also be reading
> > fw_cfg at the same time as the kernel" this is a (painful)
> > problem regardless of how the kernel figures out whet
On 10/05/15 15:05, Mark Rutland wrote:
>>> I'm not sure I follow what the difficulty with supporting DT in addition
>>> to ACPI is? It looks like all you need is a compatible string and a reg
>>> entry.
>>
>> Bearing in mind that I have almost no experience with arm:
>>
>> I started out by probing
On 5 October 2015 at 13:40, Gabriel L. Somlo wrote:
> In addition, Michael's comment earlier in the thread suggests that
> even my current acpi version isn't sufficiently "orthodox" w.r.t.
> ACPI, and I should be providing the hardware access routine as
> an ACPI/AML routine, to avoid race conditi
On Mon, Oct 05, 2015 at 08:43:46AM -0400, Gabriel L. Somlo wrote:
> On Mon, Oct 05, 2015 at 01:23:33PM +0100, Mark Rutland wrote:
> > On Mon, Oct 05, 2015 at 01:48:52PM +0200, Paolo Bonzini wrote:
> > >
> > >
> > > On 05/10/2015 12:00, Mark Rutland wrote:
> > > > Some of the keys in the example l
On Mon, Oct 05, 2015 at 01:56:47PM +0100, Mark Rutland wrote:
> On Mon, Oct 05, 2015 at 08:43:46AM -0400, Gabriel L. Somlo wrote:
> > On Mon, Oct 05, 2015 at 01:23:33PM +0100, Mark Rutland wrote:
> > > On Mon, Oct 05, 2015 at 01:48:52PM +0200, Paolo Bonzini wrote:
> > > >
> > > >
> > > > On 05/10
On 05/10/2015 14:50, Peter Maydell wrote:
> If you want to try to support "firmware might also be reading
> fw_cfg at the same time as the kernel" this is a (painful)
> problem regardless of how the kernel figures out whether a
> fw_cfg device is present. I had assumed that one of the design
> as
On Mon, Oct 05, 2015 at 01:50:47PM +0100, Peter Maydell wrote:
> On 5 October 2015 at 13:40, Gabriel L. Somlo wrote:
> > In addition, Michael's comment earlier in the thread suggests that
> > even my current acpi version isn't sufficiently "orthodox" w.r.t.
> > ACPI, and I should be providing the
> > I'm not sure I follow what the difficulty with supporting DT in addition
> > to ACPI is? It looks like all you need is a compatible string and a reg
> > entry.
>
> Bearing in mind that I have almost no experience with arm:
>
> I started out by probing all possible port-io and mmio locations w
On Mon, Oct 05, 2015 at 01:23:33PM +0100, Mark Rutland wrote:
> On Mon, Oct 05, 2015 at 01:48:52PM +0200, Paolo Bonzini wrote:
> >
> >
> > On 05/10/2015 12:00, Mark Rutland wrote:
> > > Some of the keys in the example look like they'd come from other sources
> > > (e.g. the *-tables entries), whi
On Mon, Oct 05, 2015 at 11:00:36AM +0100, Mark Rutland wrote:
> On Sat, Oct 03, 2015 at 07:28:05PM -0400, Gabriel L. Somlo wrote:
> > From: "Gabriel Somlo"
> >
> > Allow access to QEMU firmware blobs, passed into the guest VM via
> > the fw_cfg device, through SysFS entries. Blob meta-data (e.g.
On Mon, Oct 05, 2015 at 01:48:52PM +0200, Paolo Bonzini wrote:
>
>
> On 05/10/2015 12:00, Mark Rutland wrote:
> > Some of the keys in the example look like they'd come from other sources
> > (e.g. the *-tables entries), while others look like kernel/bootloader
> > configuration options (e.g. etc/
On 05/10/2015 12:00, Mark Rutland wrote:
> Some of the keys in the example look like they'd come from other sources
> (e.g. the *-tables entries), while others look like kernel/bootloader
> configuration options (e.g. etc/boot-fail-wait, bootorder) -- I'm
> concerned about redundancy here.
The r
On Sat, Oct 03, 2015 at 07:28:05PM -0400, Gabriel L. Somlo wrote:
> From: "Gabriel Somlo"
>
> Allow access to QEMU firmware blobs, passed into the guest VM via
> the fw_cfg device, through SysFS entries. Blob meta-data (e.g. name,
> size, and fw_cfg key), as well as the raw binary blob data may b
From: "Gabriel Somlo"
Allow access to QEMU firmware blobs, passed into the guest VM via
the fw_cfg device, through SysFS entries. Blob meta-data (e.g. name,
size, and fw_cfg key), as well as the raw binary blob data may be
accessed.
The SysFS access location is /sys/firmware/qemu_fw_cfg/... and
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