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[PATCH v2 7/8] x86: ich9: factor out "guest_cpu_hotplug_features"
From: |
Igor Mammedov |
Subject: |
[PATCH v2 7/8] x86: ich9: factor out "guest_cpu_hotplug_features" |
Date: |
Mon, 7 Dec 2020 09:07:38 -0500 |
it will be reused by next patch to check validity of unplug
feature.
Signed-off-by: Igor Mammedov <imammedo@redhat.com>
---
hw/isa/lpc_ich9.c | 8 ++++++--
1 file changed, 6 insertions(+), 2 deletions(-)
diff --git a/hw/isa/lpc_ich9.c b/hw/isa/lpc_ich9.c
index 087a18d04d..da80430144 100644
--- a/hw/isa/lpc_ich9.c
+++ b/hw/isa/lpc_ich9.c
@@ -366,6 +366,7 @@ static void smi_features_ok_callback(void *opaque)
{
ICH9LPCState *lpc = opaque;
uint64_t guest_features;
+ uint64_t guest_cpu_hotplug_features;
if (lpc->smi_features_ok) {
/* negotiation already complete, features locked */
@@ -378,9 +379,12 @@ static void smi_features_ok_callback(void *opaque)
/* guest requests invalid features, leave @features_ok at zero */
return;
}
+
+ guest_cpu_hotplug_features = guest_features &
+ (BIT_ULL(ICH9_LPC_SMI_F_CPU_HOTPLUG_BIT) |
+ BIT_ULL(ICH9_LPC_SMI_F_CPU_HOT_UNPLUG_BIT));
if (!(guest_features & BIT_ULL(ICH9_LPC_SMI_F_BROADCAST_BIT)) &&
- guest_features & (BIT_ULL(ICH9_LPC_SMI_F_CPU_HOTPLUG_BIT) |
- BIT_ULL(ICH9_LPC_SMI_F_CPU_HOT_UNPLUG_BIT))) {
+ guest_cpu_hotplug_features) {
/*
* cpu hot-[un]plug with SMI requires SMI broadcast,
* leave @features_ok at zero
--
2.27.0
- [PATCH v2 0/8] add support for cpu hot-unplug with SMI broadcast enabled, Igor Mammedov, 2020/12/07
- [PATCH v2 1/8] hw: add compat machines for 6.0, Igor Mammedov, 2020/12/07
- [PATCH v2 3/8] x86: acpi: introduce AcpiPmInfo::smi_on_cpu_unplug, Igor Mammedov, 2020/12/07
- [PATCH v2 2/8] acpi: cpuhp: introduce 'firmware performs eject' status/control bits, Igor Mammedov, 2020/12/07
- [PATCH v2 4/8] tests/acpi: allow expected files change, Igor Mammedov, 2020/12/07
- [PATCH v2 5/8] x86: acpi: let the firmware handle pending "CPU remove" events in SMM, Igor Mammedov, 2020/12/07
- [PATCH v2 8/8] x86: ich9: let firmware negotiate 'CPU hot-unplug with SMI' feature, Igor Mammedov, 2020/12/07
- [PATCH v2 6/8] tests/acpi: update expected files, Igor Mammedov, 2020/12/07
- [PATCH v2 7/8] x86: ich9: factor out "guest_cpu_hotplug_features",
Igor Mammedov <=