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[Qemu-devel] [PATCH 6/9] pc: acpi: create MADT.lapic entries only for va
From: |
Igor Mammedov |
Subject: |
[Qemu-devel] [PATCH 6/9] pc: acpi: create MADT.lapic entries only for valid lapics |
Date: |
Thu, 4 Feb 2016 12:47:32 +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 | 21 ++++++++++++++-------
1 file changed, 14 insertions(+), 7 deletions(-)
diff --git a/hw/i386/acpi-build.c b/hw/i386/acpi-build.c
index df13c7d..9eeeffa 100644
--- a/hw/i386/acpi-build.c
+++ b/hw/i386/acpi-build.c
@@ -361,9 +361,11 @@ build_fadt(GArray *table_data, GArray *linker, AcpiPmInfo
*pm,
}
static void
-build_madt(GArray *table_data, GArray *linker, AcpiCpuInfo *cpu,
- PcGuestInfo *guest_info)
+build_madt(GArray *table_data, GArray *linker,
+ MachineState *machine, PcGuestInfo *guest_info)
{
+ MachineClass *mc = MACHINE_GET_CLASS(machine);
+ GArray *apic_id_list = mc->possible_cpu_arch_ids();
int madt_start = table_data->len;
AcpiMultipleApicTable *madt;
@@ -376,18 +378,23 @@ build_madt(GArray *table_data, GArray *linker,
AcpiCpuInfo *cpu,
madt->local_apic_address = cpu_to_le32(APIC_DEFAULT_ADDRESS);
madt->flags = cpu_to_le32(1);
- for (i = 0; i < guest_info->apic_id_limit; i++) {
+ for (i = 0; i < apic_id_list->len; i++) {
AcpiMadtProcessorApic *apic = acpi_data_push(table_data, sizeof *apic);
+ CPUArchId id = FETCH_CPU_ARCH_ID(apic_id_list, i);
+ int apic_id = id.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 (id.cpu != NULL) {
apic->flags = cpu_to_le32(1);
} else {
apic->flags = cpu_to_le32(0);
}
}
+ g_array_free(apic_id_list, true);
+
io_apic = acpi_data_push(table_data, sizeof *io_apic);
io_apic->type = ACPI_APIC_IO;
io_apic->length = sizeof(*io_apic);
@@ -2659,7 +2666,7 @@ void acpi_build(PcGuestInfo *guest_info, AcpiBuildTables
*tables)
aml_len += tables_blob->len - fadt;
acpi_add_table(table_offsets, tables_blob);
- build_madt(tables_blob, tables->linker, &cpu, guest_info);
+ build_madt(tables_blob, tables->linker, machine, guest_info);
if (misc.has_hpet) {
acpi_add_table(table_offsets, tables_blob);
--
1.8.3.1
- Re: [Qemu-devel] [PATCH 2/9] machine: introduce MachineClass.possible_cpu_arch_ids() hook, (continued)
Re: [Qemu-devel] [PATCH 2/9] machine: introduce MachineClass.possible_cpu_arch_ids() hook, Eduardo Habkost, 2016/02/05
[Qemu-devel] [PATCH 3/9] pc: acpi: cleanup qdev_get_machine() calls, Igor Mammedov, 2016/02/04
[Qemu-devel] [PATCH 6/9] pc: acpi: create MADT.lapic entries only for valid lapics,
Igor Mammedov <=
[Qemu-devel] [PATCH 7/9] pc: acpi: drop not needed intermediate bitmap cpu->found_cpus, Igor Mammedov, 2016/02/04