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From: "Philippe Mathieu-Daudé" <philmd@linaro.org>
To: qemu-devel@nongnu.org, Thomas Huth <thuth@redhat.com>
Cc: "Michael S. Tsirkin" <mst@redhat.com>,
	qemu-riscv@nongnu.org, "David Hildenbrand" <david@redhat.com>,
	"Igor Mammedov" <imammedo@redhat.com>,
	kvm@vger.kernel.org, qemu-ppc@nongnu.org, qemu-arm@nongnu.org,
	"Paolo Bonzini" <pbonzini@redhat.com>,
	"Philippe Mathieu-Daudé" <philmd@linaro.org>,
	"Zhao Liu" <zhao1.liu@intel.com>,
	"Ani Sinha" <anisinha@redhat.com>,
	"Marcel Apfelbaum" <marcel.apfelbaum@gmail.com>,
	"Richard Henderson" <richard.henderson@linaro.org>,
	"Eduardo Habkost" <eduardo@habkost.net>
Subject: [PATCH v4 17/22] hw/i386/pc: Remove PCMachineClass::resizable_acpi_blob
Date: Tue, 16 Apr 2024 20:59:33 +0200	[thread overview]
Message-ID: <20240416185939.37984-18-philmd@linaro.org> (raw)
In-Reply-To: <20240416185939.37984-1-philmd@linaro.org>

PCMachineClass::resizable_acpi_blob was only used by the
pc-i440fx-2.2 machine, which got removed. It is now always
true. Remove it, simplifying acpi_build().

Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Zhao Liu <zhao1.liu@intel.com>
---
 include/hw/i386/pc.h |  3 ---
 hw/i386/acpi-build.c | 10 ----------
 hw/i386/pc.c         |  1 -
 3 files changed, 14 deletions(-)

diff --git a/include/hw/i386/pc.h b/include/hw/i386/pc.h
index df97df6ca7..10a8ffa0de 100644
--- a/include/hw/i386/pc.h
+++ b/include/hw/i386/pc.h
@@ -124,9 +124,6 @@ struct PCMachineClass {
     /* create kvmclock device even when KVM PV features are not exposed */
     bool kvmclock_create_always;
 
-    /* resizable acpi blob compat */
-    bool resizable_acpi_blob;
-
     /*
      * whether the machine type implements broken 32-bit address space bound
      * check for memory.
diff --git a/hw/i386/acpi-build.c b/hw/i386/acpi-build.c
index a6f8203460..ab2d4d8dcb 100644
--- a/hw/i386/acpi-build.c
+++ b/hw/i386/acpi-build.c
@@ -2688,16 +2688,6 @@ void acpi_build(AcpiBuildTables *tables, MachineState *machine)
      * keep the table size stable for all (max_cpus, max_memory_slots)
      * combinations.
      */
-    /* Make sure we have a buffer in case we need to resize the tables. */
-    if ((tables_blob->len > ACPI_BUILD_TABLE_SIZE / 2) &&
-        !pcmc->resizable_acpi_blob) {
-        /* As of QEMU 2.1, this fires with 160 VCPUs and 255 memory slots.  */
-        warn_report("ACPI table size %u exceeds %d bytes,"
-                    " migration may not work",
-                    tables_blob->len, ACPI_BUILD_TABLE_SIZE / 2);
-        error_printf("Try removing CPUs, NUMA nodes, memory slots"
-                     " or PCI bridges.\n");
-    }
     acpi_align_size(tables_blob, ACPI_BUILD_TABLE_SIZE);
 
     acpi_align_size(tables->linker->cmd_blob, ACPI_BUILD_ALIGN_SIZE);
diff --git a/hw/i386/pc.c b/hw/i386/pc.c
index 18bef7c85e..c4a7885a3b 100644
--- a/hw/i386/pc.c
+++ b/hw/i386/pc.c
@@ -1755,7 +1755,6 @@ static void pc_machine_class_init(ObjectClass *oc, void *data)
     pcmc->acpi_data_size = 0x20000 + 0x8000;
     pcmc->pvh_enabled = true;
     pcmc->kvmclock_create_always = true;
-    pcmc->resizable_acpi_blob = true;
     x86mc->apic_xrupt_override = true;
     assert(!mc->get_hotplug_handler);
     mc->get_hotplug_handler = pc_get_hotplug_handler;
-- 
2.41.0


  parent reply	other threads:[~2024-04-16 19:01 UTC|newest]

Thread overview: 28+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2024-04-16 18:59 [PATCH v4 00/22] hw/i386: Remove deprecated pc-i440fx-2.0 -> 2.3 machines Philippe Mathieu-Daudé
2024-04-16 18:59 ` [PATCH v4 01/22] hw/i386/pc: Deprecate 2.4 to 2.12 pc-i440fx machines Philippe Mathieu-Daudé
2024-05-02 12:08   ` Daniel P. Berrangé
2024-04-16 18:59 ` [PATCH v4 02/22] hw/i386/pc: Remove deprecated pc-i440fx-2.0 machine Philippe Mathieu-Daudé
2024-04-16 18:59 ` [PATCH v4 03/22] hw/usb/hcd-xhci: Remove XHCI_FLAG_FORCE_PCIE_ENDCAP flag Philippe Mathieu-Daudé
2024-04-16 18:59 ` [PATCH v4 04/22] hw/usb/hcd-xhci: Remove XHCI_FLAG_SS_FIRST flag Philippe Mathieu-Daudé
2024-04-16 18:59 ` [PATCH v4 05/22] hw/i386/acpi: Remove PCMachineClass::legacy_acpi_table_size Philippe Mathieu-Daudé
2024-04-16 18:59 ` [PATCH v4 06/22] hw/acpi/ich9: Remove 'memory-hotplug-support' property Philippe Mathieu-Daudé
2024-04-16 18:59 ` [PATCH v4 07/22] hw/acpi/ich9: Remove dead code related to 'acpi_memory_hotplug' Philippe Mathieu-Daudé
2024-04-16 18:59 ` [PATCH v4 08/22] hw/i386/pc: Remove deprecated pc-i440fx-2.1 machine Philippe Mathieu-Daudé
2024-04-16 18:59 ` [PATCH v4 09/22] target/i386/kvm: Remove x86_cpu_change_kvm_default() and 'kvm-cpu.h' Philippe Mathieu-Daudé
2024-04-16 18:59 ` [PATCH v4 10/22] hw/i386/pc: Remove PCMachineClass::smbios_uuid_encoded Philippe Mathieu-Daudé
2024-04-16 18:59 ` [PATCH v4 11/22] hw/smbios: Remove 'uuid_encoded' argument from smbios_set_defaults() Philippe Mathieu-Daudé
2024-04-16 18:59 ` [PATCH v4 12/22] hw/smbios: Remove 'smbios_uuid_encoded', simplify smbios_encode_uuid() Philippe Mathieu-Daudé
2024-04-16 18:59 ` [PATCH v4 13/22] hw/i386/pc: Remove PCMachineClass::enforce_aligned_dimm Philippe Mathieu-Daudé
2024-04-16 18:59 ` [PATCH v4 14/22] hw/mem/pc-dimm: Remove legacy_align argument from pc_dimm_pre_plug() Philippe Mathieu-Daudé
2024-04-16 18:59 ` [PATCH v4 15/22] hw/mem/memory-device: Remove legacy_align from memory_device_pre_plug() Philippe Mathieu-Daudé
2024-04-16 18:59 ` [PATCH v4 16/22] hw/i386/pc: Remove deprecated pc-i440fx-2.2 machine Philippe Mathieu-Daudé
2024-04-16 18:59 ` Philippe Mathieu-Daudé [this message]
2024-04-16 18:59 ` [PATCH v4 18/22] hw/i386/pc: Remove PCMachineClass::rsdp_in_ram Philippe Mathieu-Daudé
2024-04-16 18:59 ` [PATCH v4 19/22] hw/i386/acpi: Remove AcpiBuildState::rsdp field Philippe Mathieu-Daudé
2024-04-16 18:59 ` [PATCH v4 20/22] hw/i386/pc: Remove deprecated pc-i440fx-2.3 machine Philippe Mathieu-Daudé
2024-05-02 12:13   ` Daniel P. Berrangé
2024-04-16 18:59 ` [PATCH v4 21/22] target/i386: Remove X86CPU::kvm_no_smi_migration field Philippe Mathieu-Daudé
2024-04-16 18:59 ` [PATCH v4 22/22] hw/i386/pc: Replace PCMachineClass::acpi_data_size by PC_ACPI_DATA_SIZE Philippe Mathieu-Daudé
2024-04-24  8:44 ` [PATCH v4 00/22] hw/i386: Remove deprecated pc-i440fx-2.0 -> 2.3 machines Philippe Mathieu-Daudé
2024-05-06 14:29 ` Philippe Mathieu-Daudé
2024-05-13 13:18   ` Philippe Mathieu-Daudé

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