[v2] add support for cpu hot-unplug with SMI broadcast enabled

[PATCH v2 3/8] x86: acpi: introduce AcpiPmInfo::smi_on_cpu_unplug

Igor Mammedov posted 8 patches 4 years, 11 months ago

Diff against v1
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Maintainers: "Michael S. Tsirkin" <mst@redhat.com>, David Gibson <david@gibson.dropbear.id.au>, Richard Henderson <richard.henderson@linaro.org>, David Hildenbrand <david@redhat.com>, Paolo Bonzini <pbonzini@redhat.com>, Eduardo Habkost <ehabkost@redhat.com>, Cornelia Huck <cohuck@redhat.com>, Marcel Apfelbaum <marcel.apfelbaum@gmail.com>, Christian Borntraeger <borntraeger@de.ibm.com>, Halil Pasic <pasic@linux.ibm.com>, Peter Maydell <peter.maydell@linaro.org>, Thomas Huth <thuth@redhat.com>, Igor Mammedov <imammedo@redhat.com>

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[PATCH v2 3/8] x86: acpi: introduce AcpiPmInfo::smi_on_cpu_unplug

Posted by Igor Mammedov 4 years, 11 months ago

Signed-off-by: Igor Mammedov <imammedo@redhat.com>
---
 hw/i386/acpi-build.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/hw/i386/acpi-build.c b/hw/i386/acpi-build.c
index 1f5c211245..9036e5594c 100644
--- a/hw/i386/acpi-build.c
+++ b/hw/i386/acpi-build.c
@@ -96,6 +96,7 @@ typedef struct AcpiPmInfo {
     bool s4_disabled;
     bool pcihp_bridge_en;
     bool smi_on_cpuhp;
+    bool smi_on_cpu_unplug;
     bool pcihp_root_en;
     uint8_t s4_val;
     AcpiFadtData fadt;
@@ -197,6 +198,7 @@ static void acpi_get_pm_info(MachineState *machine, AcpiPmInfo *pm)
     pm->pcihp_io_base = 0;
     pm->pcihp_io_len = 0;
     pm->smi_on_cpuhp = false;
+    pm->smi_on_cpu_unplug = false;
 
     assert(obj);
     init_common_fadt_data(machine, obj, &pm->fadt);
@@ -220,6 +222,8 @@ static void acpi_get_pm_info(MachineState *machine, AcpiPmInfo *pm)
         pm->cpu_hp_io_base = ICH9_CPU_HOTPLUG_IO_BASE;
         pm->smi_on_cpuhp =
             !!(smi_features & BIT_ULL(ICH9_LPC_SMI_F_CPU_HOTPLUG_BIT));
+        pm->smi_on_cpu_unplug =
+            !!(smi_features & BIT_ULL(ICH9_LPC_SMI_F_CPU_HOT_UNPLUG_BIT));
     }
 
     /* The above need not be conditional on machine type because the reset port
-- 
2.27.0