Re: [Qemu-devel] [PATCH v4 33/33] pc: ACPI BIOS: make GPE.3 handle memory hotplug event on PIIX and Q35 machines

[Igor Mammedov <imammedo@redhat.com>]

On Fri, 06 Jun 2014 08:44:23 -0400
Don Slutz <dslutz@verizon.com> wrote:

> This also generates warnings during "make check":
> 
> 
> GTESTER check-qtest-i386
> blkdebug: Suspended request 'A'
> blkdebug: Resuming request 'A'
> main-loop: WARNING: I/O thread spun for 1000 iterations
> acpi-test: Warning! DSDT mismatch. Actual [asl:/tmp/asl-6P9HHX.dsl, aml:/tmp/aml-ACAIHX], Expected [asl:/tmp/asl-2Y4GHX.dsl, aml:tests/acpi-test-data/pc/DSDT].
> main-loop: WARNING: I/O thread spun for 1000 iterations
> acpi-test: Warning! DSDT mismatch. Actual [asl:/tmp/asl-T24HHX.dsl, aml:/tmp/aml-SO5HHX], Expected [asl:/tmp/asl-BYAIHX.dsl, aml:tests/acpi-test-data/q35/DSDT].
That should be so for now, series intended to go through pci tree,
and commiter /mst/ is going to update tests and binary *.hex blobs for iasl-less setups.

> 
> 
>     -Don Slutz
> 
> On 06/02/14 09:25, Igor Mammedov wrote:
> > also make handler edge based to avoid losing events, the same as
> > it has been done for PCI and CPU hotplug handlers.
> >
> > Signed-off-by: Igor Mammedov <imammedo@redhat.com>
> > Acked-by: Peter Crosthwaite <peter.crostwaite@xilinx.com>
> > ---
> > v2:
> >   * use memory hotplug crtl located under PCI0
> > ---
> >   hw/i386/acpi-dsdt.dsl     |    5 ++++-
> >   hw/i386/q35-acpi-dsdt.dsl |    5 ++++-
> >   2 files changed, 8 insertions(+), 2 deletions(-)
> >
> > diff --git a/hw/i386/acpi-dsdt.dsl b/hw/i386/acpi-dsdt.dsl
> > index 8ae933b..3cc0ea0 100644
> > --- a/hw/i386/acpi-dsdt.dsl
> > +++ b/hw/i386/acpi-dsdt.dsl
> > @@ -314,6 +314,7 @@ DefinitionBlock (
> >   /****************************************************************
> >    * General purpose events
> >    ****************************************************************/
> > +    External(\_SB.PCI0.MEMORY_HOPTLUG_DEVICE.MEMORY_SLOT_SCAN_METHOD, MethodObj)
> >   
> >       Scope(\_GPE) {
> >           Name(_HID, "ACPI0006")
> > @@ -330,7 +331,9 @@ DefinitionBlock (
> >               // CPU hotplug event
> >               \_SB.PRSC()
> >           }
> > -        Method(_L03) {
> > +        Method(_E03) {
> > +            // Memory hotplug event
> > +            \_SB.PCI0.MEMORY_HOPTLUG_DEVICE.MEMORY_SLOT_SCAN_METHOD()
> >           }
> >           Method(_L04) {
> >           }
> > diff --git a/hw/i386/q35-acpi-dsdt.dsl b/hw/i386/q35-acpi-dsdt.dsl
> > index fddc3b2..8c3eae7 100644
> > --- a/hw/i386/q35-acpi-dsdt.dsl
> > +++ b/hw/i386/q35-acpi-dsdt.dsl
> > @@ -410,6 +410,7 @@ DefinitionBlock (
> >   /****************************************************************
> >    * General purpose events
> >    ****************************************************************/
> > +    External(\_SB.PCI0.MEMORY_HOPTLUG_DEVICE.MEMORY_SLOT_SCAN_METHOD, MethodObj)
> >   
> >       Scope(\_GPE) {
> >           Name(_HID, "ACPI0006")
> > @@ -422,7 +423,9 @@ DefinitionBlock (
> >               // CPU hotplug event
> >               \_SB.PRSC()
> >           }
> > -        Method(_L03) {
> > +        Method(_E03) {
> > +            // Memory hotplug event
> > +            \_SB.PCI0.MEMORY_HOPTLUG_DEVICE.MEMORY_SLOT_SCAN_METHOD()
> >           }
> >           Method(_L04) {
> >           }
>