On 05/03/2024 14.42, Philippe Mathieu-Daudé wrote:
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@xxxxxxxxxx>
---
include/hw/i386/pc.h | 3 ---
hw/i386/acpi-build.c | 9 ---------
hw/i386/pc.c | 1 -
3 files changed, 13 deletions(-)
diff --git a/include/hw/i386/pc.h b/include/hw/i386/pc.h
index f7a5f4f283..be3a58c972 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 8c7fad92e9..a56ac8dc90 100644
--- a/hw/i386/acpi-build.c
+++ b/hw/i386/acpi-build.c
@@ -2688,15 +2688,6 @@ void acpi_build(AcpiBuildTables *tables, MachineState *machine)
* All this is for PIIX4, since QEMU 2.0 didn't support Q35 migration.
*/
/* Make sure we have a buffer in case we need to resize the tables. */
Should the above comment be removed now, too?
- 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);
Thomas
