From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:56352) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1b2gEL-0001Kn-Sw for qemu-devel@nongnu.org; Tue, 17 May 2016 10:44:22 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1b2gEK-0006VU-J4 for qemu-devel@nongnu.org; Tue, 17 May 2016 10:44:17 -0400 Received: from mx1.redhat.com ([209.132.183.28]:36219) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1b2gEK-0006VP-B4 for qemu-devel@nongnu.org; Tue, 17 May 2016 10:44:16 -0400 Received: from int-mx10.intmail.prod.int.phx2.redhat.com (int-mx10.intmail.prod.int.phx2.redhat.com [10.5.11.23]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id E2280C0578C9 for ; Tue, 17 May 2016 14:44:15 +0000 (UTC) From: Igor Mammedov Date: Tue, 17 May 2016 16:43:19 +0200 Message-Id: <1463496205-251412-28-git-send-email-imammedo@redhat.com> In-Reply-To: <1463496205-251412-1-git-send-email-imammedo@redhat.com> References: <1463496205-251412-1-git-send-email-imammedo@redhat.com> Subject: [Qemu-devel] [PATCH 27/33] pc: numa: replace node_cpu indexing by apic_id with possible_cpus index List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: qemu-devel@nongnu.org Cc: mst@redhat.com, rkrcmar@redhat.com, ehabkost@redhat.com, drjones@redhat.com, armbru@redhat.com, marcel@redhat.com that removes dependency on apic_id_limit, reducing size of node_cpu to a number of maxcpus and allowing usage of 32bit APIC IDs without allocating a huge array. Signed-off-by: Igor Mammedov --- hw/i386/acpi-build.c | 2 +- hw/i386/pc.c | 28 ++++++++++++---------------- 2 files changed, 13 insertions(+), 17 deletions(-) diff --git a/hw/i386/acpi-build.c b/hw/i386/acpi-build.c index c62c020..9b9ef62 100644 --- a/hw/i386/acpi-build.c +++ b/hw/i386/acpi-build.c @@ -2342,7 +2342,7 @@ build_srat(GArray *table_data, GArray *linker, MachineState *machine) core->type = ACPI_SRAT_PROCESSOR_APIC; core->length = sizeof(*core); core->local_apic_id = apic_id; - curnode = pcms->node_cpu[apic_id]; + curnode = pcms->node_cpu[i]; core->proximity_lo = curnode; memset(core->proximity_hi, 0, 3); core->local_sapic_eid = 0; diff --git a/hw/i386/pc.c b/hw/i386/pc.c index 1cad132..2dba916 100644 --- a/hw/i386/pc.c +++ b/hw/i386/pc.c @@ -1104,7 +1104,7 @@ void pc_hot_add_cpu(const int64_t id, Error **errp) void pc_cpus_init(PCMachineState *pcms) { - int i; + int i, j; X86CPU *cpu = NULL; MachineState *machine = MACHINE(pcms); @@ -1133,9 +1133,19 @@ void pc_cpus_init(PCMachineState *pcms) pcms->possible_cpus = g_malloc0(sizeof(CPUArchIdList) + sizeof(CPUArchId) * max_cpus); + pcms->node_cpu = g_malloc0(max_cpus * sizeof *pcms->node_cpu); + for (i = 0; i < max_cpus; i++) { pcms->possible_cpus->cpus[i].arch_id = x86_cpu_apic_id_from_index(i); pcms->possible_cpus->len++; + + for (j = 0; j < nb_numa_nodes; j++) { + if (test_bit(i, numa_info[j].node_cpu)) { + pcms->node_cpu[i] = j; + break; + } + } + if (i < smp_cpus) { cpu = pc_new_cpu(machine->cpu_model, x86_cpu_apic_id_from_index(i), &error_fatal); @@ -1185,7 +1195,7 @@ void pc_machine_done(Notifier *notifier, void *data) void pc_guest_info_init(PCMachineState *pcms) { - int i, j; + int i; pcms->apic_xrupt_override = kvm_allows_irq0_override(); pcms->numa_nodes = nb_numa_nodes; @@ -1195,20 +1205,6 @@ void pc_guest_info_init(PCMachineState *pcms) pcms->node_mem[i] = numa_info[i].node_mem; } - pcms->node_cpu = g_malloc0(pcms->apic_id_limit * - sizeof *pcms->node_cpu); - - for (i = 0; i < max_cpus; i++) { - unsigned int apic_id = x86_cpu_apic_id_from_index(i); - assert(apic_id < pcms->apic_id_limit); - for (j = 0; j < nb_numa_nodes; j++) { - if (test_bit(i, numa_info[j].node_cpu)) { - pcms->node_cpu[apic_id] = j; - break; - } - } - } - pcms->machine_done.notify = pc_machine_done; qemu_add_machine_init_done_notifier(&pcms->machine_done); } -- 1.8.3.1