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authorIgor Mammedov <imammedo@redhat.com>2020-09-23 05:46:46 -0400
committerMichael S. Tsirkin <mst@redhat.com>2020-09-29 02:15:24 -0400
commit6d837f1f38c235ea5f63488d0274407becd91e5c (patch)
tree3bf31ae57a8682b50ffd09ff529b0ed750b7507d /hw/i386/acpi-build.c
parenteb8f7f917801dee53dcf95c5172f18fb3709a27f (diff)
downloadfocaccia-qemu-6d837f1f38c235ea5f63488d0274407becd91e5c.tar.gz
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x86: acpi: introduce AcpiPmInfo::smi_on_cpuhp
Translate the "CPU hotplug with SMI" feature bit, from the property
added in the last patch, to a dedicated boolean in AcpiPmInfo.

Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Reviewed-by: Laszlo Ersek <lersek@redhat.com>
Tested-by: Laszlo Ersek <lersek@redhat.com>
Message-Id: <20200923094650.1301166-8-imammedo@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Diffstat (limited to 'hw/i386/acpi-build.c')
-rw-r--r--hw/i386/acpi-build.c6
1 files changed, 6 insertions, 0 deletions
diff --git a/hw/i386/acpi-build.c b/hw/i386/acpi-build.c
index 0e0535d2e3..b408d62560 100644
--- a/hw/i386/acpi-build.c
+++ b/hw/i386/acpi-build.c
@@ -95,6 +95,7 @@ typedef struct AcpiPmInfo {
     bool s3_disabled;
     bool s4_disabled;
     bool pcihp_bridge_en;
+    bool smi_on_cpuhp;
     uint8_t s4_val;
     AcpiFadtData fadt;
     uint16_t cpu_hp_io_base;
@@ -194,6 +195,7 @@ static void acpi_get_pm_info(MachineState *machine, AcpiPmInfo *pm)
     pm->cpu_hp_io_base = 0;
     pm->pcihp_io_base = 0;
     pm->pcihp_io_len = 0;
+    pm->smi_on_cpuhp = false;
 
     assert(obj);
     init_common_fadt_data(machine, obj, &pm->fadt);
@@ -207,12 +209,16 @@ static void acpi_get_pm_info(MachineState *machine, AcpiPmInfo *pm)
             object_property_get_uint(obj, ACPI_PCIHP_IO_LEN_PROP, NULL);
     }
     if (lpc) {
+        uint64_t smi_features = object_property_get_uint(lpc,
+            ICH9_LPC_SMI_NEGOTIATED_FEAT_PROP, NULL);
         struct AcpiGenericAddress r = { .space_id = AML_AS_SYSTEM_IO,
             .bit_width = 8, .address = ICH9_RST_CNT_IOPORT };
         pm->fadt.reset_reg = r;
         pm->fadt.reset_val = 0xf;
         pm->fadt.flags |= 1 << ACPI_FADT_F_RESET_REG_SUP;
         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));
     }
 
     /* The above need not be conditional on machine type because the reset port