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Re: [Qemu-devel] [PATCH v4 19/23] piix: APIs for pc guest info
From: |
Michael S. Tsirkin |
Subject: |
Re: [Qemu-devel] [PATCH v4 19/23] piix: APIs for pc guest info |
Date: |
Mon, 23 Sep 2013 13:10:49 +0300 |
On Mon, Sep 23, 2013 at 11:27:09AM +0200, Igor Mammedov wrote:
> On Sun, 22 Sep 2013 16:37:59 +0300
> "Michael S. Tsirkin" <address@hidden> wrote:
>
> > This adds APIs that will be used to fill in guest acpi tables.
> > Some required information is still lacking in QOM, so we
> > fall back on lookups by type and returning explicit types.
> >
> > Signed-off-by: Michael S. Tsirkin <address@hidden>
> > ---
> > include/hw/acpi/piix4.h | 8 ++++++++
> > include/hw/i386/pc.h | 1 +
> > hw/acpi/piix4.c | 44 ++++++++++++++++++++++++++++++++++++++++----
> > hw/pci-host/piix.c | 8 ++++++++
> > 4 files changed, 57 insertions(+), 4 deletions(-)
> > create mode 100644 include/hw/acpi/piix4.h
> >
> > diff --git a/include/hw/acpi/piix4.h b/include/hw/acpi/piix4.h
> > new file mode 100644
> > index 0000000..65e6fd7
> > --- /dev/null
> > +++ b/include/hw/acpi/piix4.h
> > @@ -0,0 +1,8 @@
> > +#ifndef HW_ACPI_PIIX4_H
> > +#define HW_ACPI_PIIX4_H
> > +
> > +#include "qemu/typedefs.h"
> > +
> > +Object *piix4_pm_find(void);
> > +
> > +#endif
> > diff --git a/include/hw/i386/pc.h b/include/hw/i386/pc.h
> > index f966cef..2a5d996 100644
> > --- a/include/hw/i386/pc.h
> > +++ b/include/hw/i386/pc.h
> > @@ -193,6 +193,7 @@ PCIBus *i440fx_init(PCII440FXState **pi440fx_state, int
> > *piix_devfn,
> > MemoryRegion *pci_memory,
> > MemoryRegion *ram_memory);
> >
> > +PCIBus *find_i440fx(void);
> > /* piix4.c */
> > extern PCIDevice *piix4_dev;
> > int piix4_init(PCIBus *bus, ISABus **isa_bus, int devfn);
> > diff --git a/hw/acpi/piix4.c b/hw/acpi/piix4.c
> > index 4b8c1da..3bcd890 100644
> > --- a/hw/acpi/piix4.c
> > +++ b/hw/acpi/piix4.c
> > @@ -29,6 +29,7 @@
> > #include "exec/ioport.h"
> > #include "hw/nvram/fw_cfg.h"
> > #include "exec/address-spaces.h"
> > +#include "hw/acpi/piix4.h"
> >
> > //#define DEBUG
> >
> > @@ -69,6 +70,8 @@ typedef struct PIIX4PMState {
> > /*< public >*/
> >
> > MemoryRegion io;
> > + uint32_t io_base;
> > +
> > MemoryRegion io_gpe;
> > MemoryRegion io_pci;
> > MemoryRegion io_cpu;
> > @@ -152,14 +155,13 @@ static void apm_ctrl_changed(uint32_t val, void *arg)
> > static void pm_io_space_update(PIIX4PMState *s)
> > {
> > PCIDevice *d = PCI_DEVICE(s);
> > - uint32_t pm_io_base;
> >
> > - pm_io_base = le32_to_cpu(*(uint32_t *)(d->config + 0x40));
> > - pm_io_base &= 0xffc0;
> > + s->io_base = le32_to_cpu(*(uint32_t *)(d->config + 0x40));
> > + s->io_base &= 0xffc0;
> >
> > memory_region_transaction_begin();
> > memory_region_set_enabled(&s->io, d->config[0x80] & 1);
> > - memory_region_set_address(&s->io, pm_io_base);
> > + memory_region_set_address(&s->io, s->io_base);
> > memory_region_transaction_commit();
> > }
> >
> > @@ -407,6 +409,28 @@ static void piix4_pm_machine_ready(Notifier *n, void
> > *opaque)
> > (memory_region_present(io_as, 0x2f8) ? 0x90 : 0);
> > }
> >
> > +static void piix4_pm_add_propeties(PIIX4PMState *s)
> > +{
> > + static const uint8_t acpi_enable_cmd = ACPI_ENABLE;
> > + static const uint8_t acpi_disable_cmd = ACPI_DISABLE;
> > + static const uint32_t gpe0_blk = GPE_BASE;
> > + static const uint32_t gpe0_blk_len = GPE_LEN;
> > + static const uint16_t sci_int = 9;
> > +
> > + object_property_add_uint8_ptr(OBJECT(s), ACPI_PM_PROP_ACPI_ENABLE_CMD,
> > + &acpi_enable_cmd, NULL);
> > + object_property_add_uint8_ptr(OBJECT(s), ACPI_PM_PROP_ACPI_DISABLE_CMD,
> > + &acpi_disable_cmd, NULL);
> > + object_property_add_uint32_ptr(OBJECT(s), ACPI_PM_PROP_GPE0_BLK,
> > + &gpe0_blk, NULL);
> > + object_property_add_uint32_ptr(OBJECT(s), ACPI_PM_PROP_GPE0_BLK_LEN,
> > + &gpe0_blk_len, NULL);
> > + object_property_add_uint16_ptr(OBJECT(s), ACPI_PM_PROP_SCI_INT,
> > + &sci_int, NULL);
> > + object_property_add_uint32_ptr(OBJECT(s), ACPI_PM_PROP_PM_IO_BASE,
> > + &s->io_base, NULL);
> > +}
> > +
> > static int piix4_pm_initfn(PCIDevice *dev)
> > {
> > PIIX4PMState *s = PIIX4_PM(dev);
> > @@ -456,9 +480,21 @@ static int piix4_pm_initfn(PCIDevice *dev)
> >
> > piix4_acpi_system_hot_add_init(pci_address_space_io(dev), dev->bus, s);
> >
> > + piix4_pm_add_propeties(s);
> > return 0;
> > }
> >
> > +Object *piix4_pm_find(void)
> > +{
> > + bool ambig;
> > + Object *o = object_resolve_path_type("", TYPE_PIIX4_PM, &ambig);
> > +
> > + if (ambig || !o) {
> > + return NULL;
> > + }
> > + return o;
> > +}
> > +
> > i2c_bus *piix4_pm_init(PCIBus *bus, int devfn, uint32_t smb_io_base,
> > qemu_irq sci_irq, qemu_irq smi_irq,
> > int kvm_enabled, FWCfgState *fw_cfg)
> > diff --git a/hw/pci-host/piix.c b/hw/pci-host/piix.c
> > index c041149..bad3953 100644
> > --- a/hw/pci-host/piix.c
> > +++ b/hw/pci-host/piix.c
> > @@ -416,6 +416,14 @@ PCIBus *i440fx_init(PCII440FXState **pi440fx_state,
> > return b;
> > }
> >
> > +PCIBus *find_i440fx(void)
> > +{
> > + PCIHostState *s = OBJECT_CHECK(PCIHostState,
> > + object_resolve_path("/machine/i440fx",
> > NULL),
> > + TYPE_PCI_HOST_BRIDGE);
> wouldn't object_resolve_path_type() be cleaner here?
Why would it? /machine/i440fx is an absolute path
so it's unambigious, adding type is not needed.
And if we do we'd just have to repeat TYPE_PCI_HOST_BRIDGE twice
since we need the real type anyway.
What did I miss?
>
> > + return s ? s->bus : NULL;
> > +}
> > +
> > /* PIIX3 PCI to ISA bridge */
> > static void piix3_set_irq_pic(PIIX3State *piix3, int pic_irq)
> > {
- Re: [Qemu-devel] [PATCH v4 15/23] i386: add bios linker/loader, (continued)
[Qemu-devel] [PATCH v4 13/23] acpi: pre-compiled ASL files, Michael S. Tsirkin, 2013/09/22
[Qemu-devel] [PATCH v4 16/23] loader: allow adding ROMs in done callbacks, Michael S. Tsirkin, 2013/09/22
[Qemu-devel] [PATCH v4 17/23] i386: define pc guest info, Michael S. Tsirkin, 2013/09/22
[Qemu-devel] [PATCH v4 18/23] acpi/piix: add macros for acpi property names, Michael S. Tsirkin, 2013/09/22
[Qemu-devel] [PATCH v4 19/23] piix: APIs for pc guest info, Michael S. Tsirkin, 2013/09/22
[Qemu-devel] [PATCH v4 20/23] ich9: APIs for pc guest info, Michael S. Tsirkin, 2013/09/22
[Qemu-devel] [PATCH v4 22/23] hpet: add API to find it, Michael S. Tsirkin, 2013/09/22
[Qemu-devel] [PATCH v4 23/23] i386: ACPI table generation code from seabios, Michael S. Tsirkin, 2013/09/22
[Qemu-devel] [PATCH v4 21/23] pvpanic: add API to access io port, Michael S. Tsirkin, 2013/09/22
Re: [Qemu-devel] [PATCH v4 00/23] qemu: generate acpi tables for the guest, Gerd Hoffmann, 2013/09/24