diff mbox series

[PATCH-for-9.1,v2,16/21] hw/i386/pc: Remove PCMachineClass::resizable_acpi_blob

Message ID 20240327095124.73639-17-philmd@linaro.org
State Superseded
Headers show
Series [PATCH-for-9.1,v2,01/21] hw/i386/pc: Remove deprecated pc-i440fx-2.0 machine | expand

Commit Message

Philippe Mathieu-Daudé March 27, 2024, 9:51 a.m. UTC 
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>
---
 include/hw/i386/pc.h |  3 ---
 hw/i386/acpi-build.c | 10 ----------
 hw/i386/pc.c         |  1 -
 3 files changed, 14 deletions(-)

Comments

Zhao Liu March 28, 2024, 3:04 a.m. UTC | #1 
On Wed, Mar 27, 2024 at 10:51:18AM +0100, Philippe Mathieu-Daudé wrote:
> Date: Wed, 27 Mar 2024 10:51:18 +0100
> From: Philippe Mathieu-Daudé <philmd@linaro.org>
> Subject: [PATCH-for-9.1 v2 16/21] hw/i386/pc: Remove
>  PCMachineClass::resizable_acpi_blob
> X-Mailer: git-send-email 2.41.0
> 
> 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>
> ---
>  include/hw/i386/pc.h |  3 ---
>  hw/i386/acpi-build.c | 10 ----------
>  hw/i386/pc.c         |  1 -
>  3 files changed, 14 deletions(-)

Reviewed-by: Zhao Liu <zhao1.liu@intel.com>
diff mbox series

Patch

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 c37d813af0..ae2d220269 100644
--- a/hw/i386/pc.c
+++ b/hw/i386/pc.c
@@ -1753,7 +1753,6 @@  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;