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[Qemu-devel] [PATCH v4 06/10] pc: acpi: create MADT.lapic entries only f
From: |
Igor Mammedov |
Subject: |
[Qemu-devel] [PATCH v4 06/10] pc: acpi: create MADT.lapic entries only for valid lapics |
Date: |
Fri, 26 Feb 2016 14:59:24 +0100 |
do not assume that all lapics in range 0..apic_id_limit
are valid and do not create lapic entries for not
possible lapics in MADT.
Signed-off-by: Igor Mammedov <address@hidden>
---
hw/i386/acpi-build.c | 19 ++++++++++++-------
1 file changed, 12 insertions(+), 7 deletions(-)
diff --git a/hw/i386/acpi-build.c b/hw/i386/acpi-build.c
index 54d2f92..c06f3f5 100644
--- a/hw/i386/acpi-build.c
+++ b/hw/i386/acpi-build.c
@@ -362,9 +362,10 @@ build_fadt(GArray *table_data, GArray *linker, AcpiPmInfo
*pm,
}
static void
-build_madt(GArray *table_data, GArray *linker, PCMachineState *pcms,
- AcpiCpuInfo *cpu)
+build_madt(GArray *table_data, GArray *linker, PCMachineState *pcms)
{
+ MachineClass *mc = MACHINE_GET_CLASS(pcms);
+ CPUArchIdList *apic_ids = mc->possible_cpu_arch_ids(MACHINE(pcms));
int madt_start = table_data->len;
AcpiMultipleApicTable *madt;
@@ -377,18 +378,22 @@ build_madt(GArray *table_data, GArray *linker,
PCMachineState *pcms,
madt->local_apic_address = cpu_to_le32(APIC_DEFAULT_ADDRESS);
madt->flags = cpu_to_le32(1);
- for (i = 0; i < pcms->apic_id_limit; i++) {
+ for (i = 0; i < apic_ids->len; i++) {
AcpiMadtProcessorApic *apic = acpi_data_push(table_data, sizeof *apic);
+ int apic_id = apic_ids->cpus[i].arch_id;
+
apic->type = ACPI_APIC_PROCESSOR;
apic->length = sizeof(*apic);
- apic->processor_id = i;
- apic->local_apic_id = i;
- if (test_bit(i, cpu->found_cpus)) {
+ apic->processor_id = apic_id;
+ apic->local_apic_id = apic_id;
+ if (apic_ids->cpus[i].cpu != NULL) {
apic->flags = cpu_to_le32(1);
} else {
apic->flags = cpu_to_le32(0);
}
}
+ g_free(apic_ids);
+
io_apic = acpi_data_push(table_data, sizeof *io_apic);
io_apic->type = ACPI_APIC_IO;
io_apic->length = sizeof(*io_apic);
@@ -2648,7 +2653,7 @@ void acpi_build(AcpiBuildTables *tables, MachineState
*machine)
aml_len += tables_blob->len - fadt;
acpi_add_table(table_offsets, tables_blob);
- build_madt(tables_blob, tables->linker, pcms, &cpu);
+ build_madt(tables_blob, tables->linker, pcms);
if (misc.has_hpet) {
acpi_add_table(table_offsets, tables_blob);
--
1.8.3.1
- [Qemu-devel] [PATCH v4 00/10] pc: do not create invalid MADT.LAPIC/Processor entries, Igor Mammedov, 2016/02/26
- [Qemu-devel] [PATCH v4 01/10] tests: pc: acpi: piix4: add sparse CPU hotplug case, Igor Mammedov, 2016/02/26
- [Qemu-devel] [PATCH v4 03/10] machine: introduce MachineClass.possible_cpu_arch_ids() hook, Igor Mammedov, 2016/02/26
- [Qemu-devel] [PATCH v4 02/10] pc: init pcms->apic_id_limit once and use it throughout pc.c, Igor Mammedov, 2016/02/26
- [Qemu-devel] [PATCH v4 05/10] pc: acpi: SRAT: create only valid processor lapic entries, Igor Mammedov, 2016/02/26
- [Qemu-devel] [PATCH v4 04/10] pc: acpi: cleanup qdev_get_machine() calls, Igor Mammedov, 2016/02/26
- [Qemu-devel] [PATCH v4 06/10] pc: acpi: create MADT.lapic entries only for valid lapics,
Igor Mammedov <=
- [Qemu-devel] [PATCH v4 09/10] pc: acpi: clarify why possible LAPIC entries must be present in MADT, Igor Mammedov, 2016/02/26
- [Qemu-devel] [PATCH v4 10/10] tests: update ACPI tables blobs for cpuhp_sparse case, Igor Mammedov, 2016/02/26
- [Qemu-devel] [PATCH v4 08/10] pc: acpi: drop cpu->found_cpus bitmap, Igor Mammedov, 2016/02/26
- [Qemu-devel] [PATCH v4 07/10] pc: acpi: create Processor and Notify objects only for valid lapics, Igor Mammedov, 2016/02/26