33 lines
1.3 KiB
Diff
33 lines
1.3 KiB
Diff
From 905c910373b5e6362181f227a1564eb3bef5a353 Mon Sep 17 00:00:00 2001
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From: kevinZhu <zhukeqian94@163.com>
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Date: Thu, 29 Oct 2020 19:24:48 +0800
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Subject: [PATCH] Bugfix: hw/acpi: Use max_cpus instead of cpus when build PPTT
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table The field "cpus" is the initial number of CPU for guest, and the field
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"max_cpus" is the max number of CPU after CPU hotplug. When building PPTT for
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guest, we should take all CPUs into account, otherwise the "smp_sockets" is
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wrong.
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Fixes: 7cfcd8c8a2fe ("build smt processor structure to support smt topology")
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Signed-off-by: Keqian Zhu <zhukeqian1@huawei.com>
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---
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hw/acpi/aml-build.c | 2 +-
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1 file changed, 1 insertion(+), 1 deletion(-)
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diff --git a/hw/acpi/aml-build.c b/hw/acpi/aml-build.c
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index 8a3b51c835..f01669df57 100644
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--- a/hw/acpi/aml-build.c
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+++ b/hw/acpi/aml-build.c
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@@ -167,7 +167,7 @@ void build_pptt(GArray *table_data, BIOSLinker *linker, int possible_cpus)
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struct offset_status offset;
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const MachineState *ms = MACHINE(qdev_get_machine());
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unsigned int smp_cores = ms->smp.cores;
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- unsigned int smp_sockets = ms->smp.cpus / (smp_cores * ms->smp.threads);
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+ unsigned int smp_sockets = ms->smp.max_cpus / (smp_cores * ms->smp.threads);
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acpi_data_push(table_data, sizeof(AcpiTableHeader));
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--
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2.27.0
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