Hi,
> > (Migration compat is left as an exercise for the reader :-))
>
> It's not just migration compatibility, it's also guest ABI: "the guest
> can tell the difference".
Is that actually the case on x86? I don't think so.
Note: arm is different, because the flash is listed in the device
Peter Maydell writes:
> On Mon, 28 Jan 2019 at 12:40, Gerd Hoffmann wrote:
>> The tricky part is the access control here. On physical hardware you
>> typically have one flash rom, say 16M below 4G (on x86).
>>
>> Our pflash device doesn't allow to define multiple regions, so we use
>> multiple
On 01/28/19 14:06, Peter Maydell wrote:
> On Mon, 28 Jan 2019 at 12:40, Gerd Hoffmann wrote:
>> The tricky part is the access control here. On physical hardware you
>> typically have one flash rom, say 16M below 4G (on x86).
>>
>> Our pflash device doesn't allow to define multiple regions, so we
On Mon, 28 Jan 2019 at 14:56, Laszlo Ersek wrote:
> Regarding OVMF, I kept the flash driver intentionally in the dark about
> split vs. unified pflash, so OVMF will not care, as long as the same
> GPAs behave the same as before.
>
> Regarding ArmVirtQemu, I'm not so sure. It think it already
On 01/28/19 15:58, Peter Maydell wrote:
> On Mon, 28 Jan 2019 at 14:56, Laszlo Ersek wrote:
>> Regarding OVMF, I kept the flash driver intentionally in the dark about
>> split vs. unified pflash, so OVMF will not care, as long as the same
>> GPAs behave the same as before.
>>
>> Regarding
On Mon, 28 Jan 2019 at 12:40, Gerd Hoffmann wrote:
> The tricky part is the access control here. On physical hardware you
> typically have one flash rom, say 16M below 4G (on x86).
>
> Our pflash device doesn't allow to define multiple regions, so we use
> multiple pflash devices instead, each
Hi,
> > Issue (1) isn't too hard: we add the device to the dynamic sysbus device
> > white-list, move a sysbus_mmio_map() from pflash_cfi01_realize() into
> > pflash_cfi01_realize(). The latter requires a new device property to
> > configure the base address. I got a working prototype. Since
