Displaying 5 results from an estimated 5 matches for "acpi_mem_hotplug".
2016 Nov 16
2
[PATCH 1/3] virtio: Basic implementation of virtio pstore driver
Hi,
On Tue, Nov 15, 2016 at 11:38 PM, Paolo Bonzini <pbonzini at redhat.com> wrote:
>
>
> On 15/11/2016 15:36, Namhyung Kim wrote:
>> Hi,
>>
>> On Tue, Nov 15, 2016 at 10:57:29AM +0100, Paolo Bonzini wrote:
>>>
>>>
>>> On 15/11/2016 06:06, Michael S. Tsirkin wrote:
>>>> On Tue, Nov 15, 2016 at 01:50:21PM +0900, Namhyung Kim
2016 Nov 16
2
[PATCH 1/3] virtio: Basic implementation of virtio pstore driver
Hi,
On Tue, Nov 15, 2016 at 11:38 PM, Paolo Bonzini <pbonzini at redhat.com> wrote:
>
>
> On 15/11/2016 15:36, Namhyung Kim wrote:
>> Hi,
>>
>> On Tue, Nov 15, 2016 at 10:57:29AM +0100, Paolo Bonzini wrote:
>>>
>>>
>>> On 15/11/2016 06:06, Michael S. Tsirkin wrote:
>>>> On Tue, Nov 15, 2016 at 01:50:21PM +0900, Namhyung Kim
2016 Nov 16
0
[PATCH 1/3] virtio: Basic implementation of virtio pstore driver
...e the signature at the beginning
of the header.
> Btw, is the ERST used for pstore only (in Linux)?
Yes. It can store various records, including dmesg and MCE.
There are other examples in QEMU of interfaces with ACPI. They all use the
DSDT, but the logic is similar. For example, docs/specs/acpi_mem_hotplug.txt
documents the memory hotplug interface. In all cases, ACPI tables contain small
programs that talk to specialized hardware registers, typically allocated to
hard-coded I/O ports.
In your case, the registers could occupy 16 consecutive I/O ports, like the
following:
0x00 read/write...
2016 Nov 18
3
[PATCH 1/3] virtio: Basic implementation of virtio pstore driver
...the header.
>
> > Btw, is the ERST used for pstore only (in Linux)?
>
> Yes. It can store various records, including dmesg and MCE.
>
> There are other examples in QEMU of interfaces with ACPI. They all use the
> DSDT, but the logic is similar. For example, docs/specs/acpi_mem_hotplug.txt
> documents the memory hotplug interface. In all cases, ACPI tables contain small
> programs that talk to specialized hardware registers, typically allocated to
> hard-coded I/O ports.
>
> In your case, the registers could occupy 16 consecutive I/O ports, like the
> following...
2016 Nov 18
3
[PATCH 1/3] virtio: Basic implementation of virtio pstore driver
...the header.
>
> > Btw, is the ERST used for pstore only (in Linux)?
>
> Yes. It can store various records, including dmesg and MCE.
>
> There are other examples in QEMU of interfaces with ACPI. They all use the
> DSDT, but the logic is similar. For example, docs/specs/acpi_mem_hotplug.txt
> documents the memory hotplug interface. In all cases, ACPI tables contain small
> programs that talk to specialized hardware registers, typically allocated to
> hard-coded I/O ports.
>
> In your case, the registers could occupy 16 consecutive I/O ports, like the
> following...