From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:60661) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1aYFTf-0004jb-Sh for qemu-devel@nongnu.org; Tue, 23 Feb 2016 11:06:20 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1aYFTa-00035X-68 for qemu-devel@nongnu.org; Tue, 23 Feb 2016 11:06:19 -0500 Received: from mx1.redhat.com ([209.132.183.28]:42762) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1aYFTa-00034q-1H for qemu-devel@nongnu.org; Tue, 23 Feb 2016 11:06:14 -0500 From: Igor Mammedov Date: Tue, 23 Feb 2016 17:05:56 +0100 Message-Id: <1456243560-67516-5-git-send-email-imammedo@redhat.com> In-Reply-To: <1456243560-67516-1-git-send-email-imammedo@redhat.com> References: <1456243560-67516-1-git-send-email-imammedo@redhat.com> Subject: [Qemu-devel] [PATCH v3 4/8] pc: acpi: SRAT: create only valid processor lapic entries List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: qemu-devel@nongnu.org Cc: ehabkost@redhat.com, mst@redhat.com, marcel.apfelbaum@gmail.com, Paolo Bonzini , Igor Mammedov , Richard Henderson When APIC IDs are sparse*, in addition to valid LAPIC entries the SRAT is also filled invalid ones for non possible APIC IDs. Fix it by asking machine for all possible APIC IDs instead of wrongly assuming that all APIC IDs in range 0..apic_id_limit are possible. * sparse lapic topology CLI: -smp x,sockets=2,cores=3,maxcpus=6 Signed-off-by: Igor Mammedov Reviewed-by: Eduardo Habkost --- hw/i386/acpi-build.c | 12 +++++++++--- 1 file changed, 9 insertions(+), 3 deletions(-) diff --git a/hw/i386/acpi-build.c b/hw/i386/acpi-build.c index 3b4468e..69e1324 100644 --- a/hw/i386/acpi-build.c +++ b/hw/i386/acpi-build.c @@ -2376,6 +2376,9 @@ build_srat(GArray *table_data, GArray *linker, MachineState *machine) uint64_t curnode; int srat_start, numa_start, slots; uint64_t mem_len, mem_base, next_base; + PossibleCpusClass *psc = POSSIBLE_CPUS_GET_CLASS(machine); + CPUArchIdList *apic_ids = + psc->get_possible_cpus_list(POSSIBLE_CPUS(machine)); PCMachineState *pcms = PC_MACHINE(machine); ram_addr_t hotplugabble_address_space_size = object_property_get_int(OBJECT(pcms), PC_MACHINE_MEMHP_REGION_SIZE, @@ -2387,12 +2390,14 @@ build_srat(GArray *table_data, GArray *linker, MachineState *machine) srat->reserved1 = cpu_to_le32(1); core = (void *)(srat + 1); - for (i = 0; i < pcms->apic_id_limit; ++i) { + for (i = 0; i < apic_ids->len; i++) { + int apic_id = apic_ids->cpus[i].arch_id; + core = acpi_data_push(table_data, sizeof *core); core->type = ACPI_SRAT_PROCESSOR; core->length = sizeof(*core); - core->local_apic_id = i; - curnode = pcms->node_cpu[i]; + core->local_apic_id = apic_id; + curnode = pcms->node_cpu[apic_id]; core->proximity_lo = curnode; memset(core->proximity_hi, 0, 3); core->local_sapic_eid = 0; @@ -2457,6 +2462,7 @@ build_srat(GArray *table_data, GArray *linker, MachineState *machine) (void *)(table_data->data + srat_start), "SRAT", table_data->len - srat_start, 1, NULL, NULL); + g_free(apic_ids); } static void -- 1.8.3.1