On Mon, 28 Jan 2019 11:05:43 +0000
Shameer Kolothum <shameerali.kolothum.th...@huawei.com> wrote:
> This is in preparation for adding support for ARM64 platforms
> where it doesn't use port mapped IO for ACPI IO space.
>
> Also add a flag to identify hw reduced ACPI platforms as they
> might use GPIO hw for signaling ACPI platform events.
>
> Signed-off-by: Shameer Kolothum <shameerali.kolothum.th...@huawei.com>
> ---
> hw/acpi/memory_hotplug.c | 13 ++++++++-----
> hw/i386/acpi-build.c | 3 ++-
> include/hw/acpi/memory_hotplug.h | 6 ++++--
> 3 files changed, 14 insertions(+), 8 deletions(-)
>
> diff --git a/hw/acpi/memory_hotplug.c b/hw/acpi/memory_hotplug.c
> index 921cad2..05f1d45 100644
> --- a/hw/acpi/memory_hotplug.c
> +++ b/hw/acpi/memory_hotplug.c
> @@ -34,7 +34,7 @@
> #define MEMORY_HOTPLUG_IO_LEN 24
> #define MEMORY_DEVICES_CONTAINER "\\_SB.MHPC"
>
> -static uint16_t memhp_io_base;
> +static hwaddr memhp_io_base;
>
> static ACPIOSTInfo *acpi_memory_device_status(int slot, MemStatus *mdev)
> {
> @@ -208,7 +208,7 @@ static const MemoryRegionOps acpi_memory_hotplug_ops = {
> };
>
> void acpi_memory_hotplug_init(MemoryRegion *as, Object *owner,
> - MemHotplugState *state, uint16_t io_base)
> + MemHotplugState *state, hwaddr io_base)
> {
> MachineState *machine = MACHINE(qdev_get_machine());
>
> @@ -279,7 +279,9 @@ void acpi_memory_plug_cb(HotplugHandler *hotplug_dev,
> MemHotplugState *mem_st,
> mdev->is_enabled = true;
> if (dev->hotplugged) {
> mdev->is_inserting = true;
> - acpi_send_event(DEVICE(hotplug_dev), ACPI_MEMORY_HOTPLUG_STATUS);
> + if (!mem_st->hw_reduced_acpi) {
> + acpi_send_event(DEVICE(hotplug_dev), ACPI_MEMORY_HOTPLUG_STATUS);
> + }
Why do you restrict it to non hw_reduced_acpi?
If anything else, I'd expect virt board (or hotplug controller (GED or whatever)
implement AcpiDeviceIfClass and implement arm/virt board specific call backs)
then you won't need duplicate and carry hw_reduced_acpi in generic code.
The rest of the patch looks good.
> }
> }
>
> @@ -341,7 +343,8 @@ const VMStateDescription vmstate_memory_hotplug = {
>
> void build_memory_hotplug_aml(Aml *table, uint32_t nr_mem,
> const char *res_root,
> - const char *event_handler_method)
> + const char *event_handler_method,
> + AmlRegionSpace rs)
> {
> int i;
> Aml *ifctx;
> @@ -371,7 +374,7 @@ void build_memory_hotplug_aml(Aml *table, uint32_t nr_mem,
> aml_append(mem_ctrl_dev, aml_name_decl("_CRS", crs));
>
> aml_append(mem_ctrl_dev, aml_operation_region(
> - MEMORY_HOTPLUG_IO_REGION, AML_SYSTEM_IO,
> + MEMORY_HOTPLUG_IO_REGION, rs,
> aml_int(memhp_io_base), MEMORY_HOTPLUG_IO_LEN)
> );
>
> diff --git a/hw/i386/acpi-build.c b/hw/i386/acpi-build.c
> index 2e21a31..b62c1a3 100644
> --- a/hw/i386/acpi-build.c
> +++ b/hw/i386/acpi-build.c
> @@ -1852,7 +1852,8 @@ build_dsdt(GArray *table_data, BIOSLinker *linker,
> build_cpus_aml(dsdt, machine, opts, pm->cpu_hp_io_base,
> "\\_SB.PCI0", "\\_GPE._E02");
> }
> - build_memory_hotplug_aml(dsdt, nr_mem, "\\_SB.PCI0", "\\_GPE._E03");
> + build_memory_hotplug_aml(dsdt, nr_mem, "\\_SB.PCI0",
> + "\\_GPE._E03", AML_SYSTEM_IO);
>
> scope = aml_scope("_GPE");
> {
> diff --git a/include/hw/acpi/memory_hotplug.h
> b/include/hw/acpi/memory_hotplug.h
> index 77c6576..ec56579 100644
> --- a/include/hw/acpi/memory_hotplug.h
> +++ b/include/hw/acpi/memory_hotplug.h
> @@ -26,10 +26,11 @@ typedef struct MemHotplugState {
> uint32_t selector;
> uint32_t dev_count;
> MemStatus *devs;
> + bool hw_reduced_acpi; /*true for hw reduced acpi platform */
> } MemHotplugState;
>
> void acpi_memory_hotplug_init(MemoryRegion *as, Object *owner,
> - MemHotplugState *state, uint16_t io_base);
> + MemHotplugState *state, hwaddr io_base);
>
> void acpi_memory_plug_cb(HotplugHandler *hotplug_dev, MemHotplugState
> *mem_st,
> DeviceState *dev, Error **errp);
> @@ -48,5 +49,6 @@ void acpi_memory_ospm_status(MemHotplugState *mem_st,
> ACPIOSTInfoList ***list);
>
> void build_memory_hotplug_aml(Aml *table, uint32_t nr_mem,
> const char *res_root,
> - const char *event_handler_method);
> + const char *event_handler_method,
> + AmlRegionSpace rs);
> #endif
