From: Julia Suvorova <jusual@redhat.com>
To: qemu-devel@nongnu.org
Cc: Igor Mammedov <imammedo@redhat.com>,
Julia Suvorova <jusual@redhat.com>,
Gerd Hoffmann <kraxel@redhat.com>,
"Michael S. Tsirkin" <mst@redhat.com>
Subject: [RFC PATCH v2 4/4] hw/acpi/ich9: Enable ACPI PCI hot-plug
Date: Tue, 18 Aug 2020 23:52:27 +0200 [thread overview]
Message-ID: <20200818215227.181654-5-jusual@redhat.com> (raw)
In-Reply-To: <20200818215227.181654-1-jusual@redhat.com>
Add acpi_pcihp to ich9_pm and use ACPI PCI hot-plug by default.
Signed-off-by: Julia Suvorova <jusual@redhat.com>
---
Note: New pc_compats are usually added shortly after release.
I will switch to pc_compat_5_1 when it becomes available.
hw/i386/acpi-build.h | 1 +
include/hw/acpi/ich9.h | 3 +++
hw/acpi/ich9.c | 45 ++++++++++++++++++++++++++++++++++++++++++
hw/acpi/pcihp.c | 5 ++++-
hw/i386/acpi-build.c | 2 +-
hw/i386/pc.c | 1 +
6 files changed, 55 insertions(+), 2 deletions(-)
diff --git a/hw/i386/acpi-build.h b/hw/i386/acpi-build.h
index 6f94312c39..f0bb080018 100644
--- a/hw/i386/acpi-build.h
+++ b/hw/i386/acpi-build.h
@@ -17,5 +17,6 @@ typedef enum {
} AcpiOSCField;
void acpi_setup(void);
+Object *acpi_get_i386_pci_host(void);
#endif
diff --git a/include/hw/acpi/ich9.h b/include/hw/acpi/ich9.h
index 28a53181cb..9947085e9c 100644
--- a/include/hw/acpi/ich9.h
+++ b/include/hw/acpi/ich9.h
@@ -24,6 +24,7 @@
#include "hw/acpi/acpi.h"
#include "hw/acpi/cpu_hotplug.h"
#include "hw/acpi/cpu.h"
+#include "hw/acpi/pcihp.h"
#include "hw/acpi/memory_hotplug.h"
#include "hw/acpi/acpi_dev_interface.h"
#include "hw/acpi/tco.h"
@@ -53,6 +54,8 @@ typedef struct ICH9LPCPMRegs {
AcpiCpuHotplug gpe_cpu;
CPUHotplugState cpuhp_state;
+ bool use_acpi_hotplug_bridge;
+ AcpiPciHpState acpi_pci_hotplug;
MemHotplugState acpi_memory_hotplug;
uint8_t disable_s3;
diff --git a/hw/acpi/ich9.c b/hw/acpi/ich9.c
index a2a1742aa6..fde86d12ae 100644
--- a/hw/acpi/ich9.c
+++ b/hw/acpi/ich9.c
@@ -265,6 +265,7 @@ static void pm_reset(void *opaque)
}
pm->smi_en_wmask = ~0;
+ acpi_pcihp_reset(&pm->acpi_pci_hotplug);
acpi_update_sci(&pm->acpi_regs, pm->irq);
}
@@ -303,6 +304,17 @@ void ich9_pm_init(PCIDevice *lpc_pci, ICH9LPCPMRegs *pm,
pm->enable_tco = true;
acpi_pm_tco_init(&pm->tco_regs, &pm->io);
+ if (pm->use_acpi_hotplug_bridge) {
+ acpi_pcihp_init(OBJECT(lpc_pci),
+ &pm->acpi_pci_hotplug,
+ pci_get_bus(lpc_pci),
+ pci_address_space_io(lpc_pci),
+ true, false);
+
+ qbus_set_hotplug_handler(BUS(pci_get_bus(lpc_pci)),
+ OBJECT(lpc_pci));
+ }
+
pm->irq = sci_irq;
qemu_register_reset(pm_reset, pm);
pm->powerdown_notifier.notify = pm_powerdown_req;
@@ -374,6 +386,20 @@ static void ich9_pm_set_enable_tco(Object *obj, bool value, Error **errp)
s->pm.enable_tco = value;
}
+static bool ich9_pm_get_acpi_pci_hotplug(Object *obj, Error **errp)
+{
+ ICH9LPCState *s = ICH9_LPC_DEVICE(obj);
+
+ return s->pm.use_acpi_hotplug_bridge;
+}
+
+static void ich9_pm_set_acpi_pci_hotplug(Object *obj, bool value,
+ Error **errp)
+{
+ ICH9LPCState *s = ICH9_LPC_DEVICE(obj);
+
+ s->pm.use_acpi_hotplug_bridge = value;
+}
void ich9_pm_add_properties(Object *obj, ICH9LPCPMRegs *pm)
{
static const uint32_t gpe0_len = ICH9_PMIO_GPE0_LEN;
@@ -382,6 +408,7 @@ void ich9_pm_add_properties(Object *obj, ICH9LPCPMRegs *pm)
pm->disable_s3 = 0;
pm->disable_s4 = 0;
pm->s4_val = 2;
+ pm->use_acpi_hotplug_bridge = true;
object_property_add_uint32_ptr(obj, ACPI_PM_PROP_PM_IO_BASE,
&pm->pm_io_base, OBJ_PROP_FLAG_READ);
@@ -405,6 +432,9 @@ void ich9_pm_add_properties(Object *obj, ICH9LPCPMRegs *pm)
object_property_add_bool(obj, ACPI_PM_PROP_TCO_ENABLED,
ich9_pm_get_enable_tco,
ich9_pm_set_enable_tco);
+ object_property_add_bool(obj, "acpi-pci-hotplug-with-bridge-support",
+ ich9_pm_get_acpi_pci_hotplug,
+ ich9_pm_set_acpi_pci_hotplug);
}
void ich9_pm_device_pre_plug_cb(HotplugHandler *hotplug_dev, DeviceState *dev,
@@ -412,6 +442,11 @@ void ich9_pm_device_pre_plug_cb(HotplugHandler *hotplug_dev, DeviceState *dev,
{
ICH9LPCState *lpc = ICH9_LPC_DEVICE(hotplug_dev);
+ if (object_dynamic_cast(OBJECT(dev), TYPE_PCI_DEVICE)) {
+ acpi_pcihp_device_pre_plug_cb(hotplug_dev, dev, errp);
+ return;
+ }
+
if (object_dynamic_cast(OBJECT(dev), TYPE_PC_DIMM) &&
!lpc->pm.acpi_memory_hotplug.is_enabled)
error_setg(errp,
@@ -437,6 +472,9 @@ void ich9_pm_device_plug_cb(HotplugHandler *hotplug_dev, DeviceState *dev,
} else {
acpi_cpu_plug_cb(hotplug_dev, &lpc->pm.cpuhp_state, dev, errp);
}
+ } else if (object_dynamic_cast(OBJECT(dev), TYPE_PCI_DEVICE)) {
+ acpi_pcihp_device_plug_cb(hotplug_dev, &lpc->pm.acpi_pci_hotplug,
+ dev, errp);
} else {
error_setg(errp, "acpi: device plug request for not supported device"
" type: %s", object_get_typename(OBJECT(dev)));
@@ -457,6 +495,10 @@ void ich9_pm_device_unplug_request_cb(HotplugHandler *hotplug_dev,
!lpc->pm.cpu_hotplug_legacy) {
acpi_cpu_unplug_request_cb(hotplug_dev, &lpc->pm.cpuhp_state,
dev, errp);
+ } else if (object_dynamic_cast(OBJECT(dev), TYPE_PCI_DEVICE)) {
+ acpi_pcihp_device_unplug_request_cb(hotplug_dev,
+ &lpc->pm.acpi_pci_hotplug,
+ dev, errp);
} else {
error_setg(errp, "acpi: device unplug request for not supported device"
" type: %s", object_get_typename(OBJECT(dev)));
@@ -474,6 +516,9 @@ void ich9_pm_device_unplug_cb(HotplugHandler *hotplug_dev, DeviceState *dev,
} else if (object_dynamic_cast(OBJECT(dev), TYPE_CPU) &&
!lpc->pm.cpu_hotplug_legacy) {
acpi_cpu_unplug_cb(&lpc->pm.cpuhp_state, dev, errp);
+ } else if (object_dynamic_cast(OBJECT(dev), TYPE_PCI_DEVICE)) {
+ acpi_pcihp_device_unplug_cb(hotplug_dev, &lpc->pm.acpi_pci_hotplug,
+ dev, errp);
} else {
error_setg(errp, "acpi: device unplug for not supported device"
" type: %s", object_get_typename(OBJECT(dev)));
diff --git a/hw/acpi/pcihp.c b/hw/acpi/pcihp.c
index 9a35ed6c83..46ebd1bb15 100644
--- a/hw/acpi/pcihp.c
+++ b/hw/acpi/pcihp.c
@@ -30,6 +30,8 @@
#include "hw/pci-host/i440fx.h"
#include "hw/pci/pci.h"
#include "hw/pci/pci_bridge.h"
+#include "hw/pci/pci_host.h"
+#include "hw/i386/acpi-build.h"
#include "hw/acpi/acpi.h"
#include "exec/address-spaces.h"
#include "hw/pci/pci_bus.h"
@@ -90,6 +92,7 @@ static void *acpi_set_bsel(PCIBus *bus, void *opaque)
static void acpi_set_pci_info(void)
{
static bool bsel_is_set;
+ Object *host = acpi_get_i386_pci_host();
PCIBus *bus;
unsigned bsel_alloc = ACPI_PCIHP_BSEL_DEFAULT;
@@ -98,7 +101,7 @@ static void acpi_set_pci_info(void)
}
bsel_is_set = true;
- bus = find_i440fx(); /* TODO: Q35 support */
+ bus = PCI_HOST_BRIDGE(host)->bus;
if (bus) {
/* Scan all PCI buses. Set property to enable acpi based hotplug. */
pci_for_each_bus_depth_first(bus, acpi_set_bsel, NULL, &bsel_alloc);
diff --git a/hw/i386/acpi-build.c b/hw/i386/acpi-build.c
index c5f4802b8c..8cecdf722f 100644
--- a/hw/i386/acpi-build.c
+++ b/hw/i386/acpi-build.c
@@ -270,7 +270,7 @@ static void acpi_get_misc_info(AcpiMiscInfo *info)
* Because of the PXB hosts we cannot simply query TYPE_PCI_HOST_BRIDGE.
* On i386 arch we only have two pci hosts, so we can look only for them.
*/
-static Object *acpi_get_i386_pci_host(void)
+Object *acpi_get_i386_pci_host(void)
{
PCIHostState *host;
diff --git a/hw/i386/pc.c b/hw/i386/pc.c
index 47c5ca3e34..175e6911a1 100644
--- a/hw/i386/pc.c
+++ b/hw/i386/pc.c
@@ -98,6 +98,7 @@
#include "trace.h"
GlobalProperty pc_compat_5_0[] = {
+ { "ICH9-LPC", "acpi-pci-hotplug-with-bridge-support", "off" },
};
const size_t pc_compat_5_0_len = G_N_ELEMENTS(pc_compat_5_0);
--
2.25.4
next prev parent reply other threads:[~2020-08-18 21:58 UTC|newest]
Thread overview: 27+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-08-18 21:52 [RFC PATCH v2 0/4] Use ACPI PCI hot-plug for q35 Julia Suvorova
2020-08-18 21:52 ` [RFC PATCH v2 1/4] hw/acpi/ich9: Trace ich9_gpe_readb()/writeb() Julia Suvorova
2020-08-19 3:14 ` Philippe Mathieu-Daudé
2020-08-25 13:14 ` Julia Suvorova
2020-08-18 21:52 ` [RFC PATCH v2 2/4] hw/i386/acpi-build: Add ACPI PCI hot-plug methods to q35 Julia Suvorova
2020-08-19 3:21 ` Philippe Mathieu-Daudé
2020-09-16 19:24 ` Julia Suvorova
2020-08-21 12:08 ` Igor Mammedov
2020-09-16 19:02 ` Julia Suvorova
2020-08-18 21:52 ` [RFC PATCH v2 3/4] hw/i386/acpi-build: Turn off support of PCIe native hot-plug and SHPC in _OSC Julia Suvorova
2020-08-21 12:13 ` Igor Mammedov
2020-09-16 18:03 ` Julia Suvorova
2020-09-16 19:14 ` Julia Suvorova
2020-09-17 6:01 ` Igor Mammedov
2020-09-17 10:40 ` Julia Suvorova
2020-09-18 6:50 ` Igor Mammedov
2020-08-18 21:52 ` Julia Suvorova [this message]
2020-08-21 12:24 ` [RFC PATCH v2 4/4] hw/acpi/ich9: Enable ACPI PCI hot-plug Igor Mammedov
2020-09-16 19:28 ` Julia Suvorova
2020-08-18 22:29 ` [RFC PATCH v2 0/4] Use ACPI PCI hot-plug for q35 no-reply
2020-08-21 3:41 ` Michael S. Tsirkin
2020-08-21 10:30 ` Igor Mammedov
2020-08-21 12:29 ` Igor Mammedov
2020-08-22 14:25 ` Laszlo Ersek
2020-08-24 11:35 ` Igor Mammedov
2020-08-24 11:51 ` Ani Sinha
2020-08-24 15:03 ` Laszlo Ersek
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