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Re: [Qemu-devel] [RFC 0/9] generate dynamic _CRS for motherboard resourc
From: |
Michael S. Tsirkin |
Subject: |
Re: [Qemu-devel] [RFC 0/9] generate dynamic _CRS for motherboard resources |
Date: |
Sun, 16 Feb 2014 17:53:45 +0200 |
On Fri, Feb 07, 2014 at 01:51:27PM +0100, Igor Mammedov wrote:
> Since introduction of PCIHP, it became problematic to
> punch hole in PCI0._CRS statically since PCI hotplug
> region size became runtime changeable.
What makes it runtime changeable?
> So replace static hole punching with dynamically consumed
> resources in a child device on PCI0 bus. i.e generate
> PNP0C02 device as a child of PCI0 bus at runtime and
> consume GPE0, PCI/CPU hotplug IO resources in it instead
> of punching holes in static PCI0._CRS.
It seems that we are being too exact with
IO resources here.
Can't we roughly reserve 0xae00 to 0xafff
and be done with it?
> Tested with Windows XPsp3, Vista, Windows Server 2003, 2008, 2012r2.
>
> PS:
> Series adds several ASL like macros to simplify
> code for dynamic generation of AML structures.
>
> Igor Mammedov (9):
> Revert "pc: Q35 DSDT: exclude CPU hotplug IO range from PCI bus
> resources"
> Revert "pc: PIIX DSDT: exclude CPU/PCI hotplug & GPE0 IO range from
> PCI bus resources"
> Partial revert "pc: ACPI: expose PRST IO range via _CRS"
> acpi: replace opencoded opcodes with defines
> acpi: add PNP0C02 to PCI0 bus
> acpi: consume GPE0 IO resources in PNP0C02 device
> acpi: consume CPU hotplug IO resource in PNP0C02 device
> pcihp: expose PCI hotplug MMIO base/length as properties of piix4pm
> acpi: consume PCIHP IO resource in PNP0C02 device
>
> hw/acpi/pcihp.c | 28 ++++++
> hw/acpi/piix4.c | 1 +
> hw/i386/acpi-build.c | 177 ++++++++++++++++++++++++++++++++++--
> hw/i386/acpi-dsdt-cpu-hotplug.dsl | 11 ---
> hw/i386/acpi-dsdt-pci-crs.dsl | 15 +++-
> hw/i386/acpi-dsdt.dsl | 39 --------
> hw/i386/q35-acpi-dsdt.dsl | 16 ----
> include/hw/acpi/pcihp.h | 4 +
> 8 files changed, 214 insertions(+), 77 deletions(-)
- Re: [Qemu-devel] [RFC 4/9] acpi: replace opencoded opcodes with defines, (continued)
- [Qemu-devel] [RFC 5/9] acpi: add PNP0C02 to PCI0 bus, Igor Mammedov, 2014/02/07
- [Qemu-devel] [RFC 6/9] acpi: consume GPE0 IO resources in PNP0C02 device, Igor Mammedov, 2014/02/07
- [Qemu-devel] [RFC 7/9] acpi: consume CPU hotplug IO resource in PNP0C02 device, Igor Mammedov, 2014/02/07
- [Qemu-devel] [RFC 8/9] pcihp: expose PCI hotplug MMIO base/length as properties of piix4pm, Igor Mammedov, 2014/02/07
- [Qemu-devel] [RFC 9/9] acpi: consume PCIHP IO resource in PNP0C02 device, Igor Mammedov, 2014/02/07
- Re: [Qemu-devel] [RFC 0/9] generate dynamic _CRS for motherboard resources,
Michael S. Tsirkin <=
- Re: [Qemu-devel] [RFC 0/9] generate dynamic _CRS for motherboard resources, Igor Mammedov, 2014/02/18
- Re: [Qemu-devel] [RFC 0/9] generate dynamic _CRS for motherboard resources, Laszlo Ersek, 2014/02/18
- Re: [Qemu-devel] [RFC 0/9] generate dynamic _CRS for motherboard resources, Igor Mammedov, 2014/02/19
Re: [Qemu-devel] [RFC 0/9] generate dynamic _CRS for motherboard resources, Igor Mammedov, 2014/02/17