[Qemu-devel] [PULL 06/29] hw/s390x: Replace global smp variables with machine smp properties

Eduardo Habkost posted 29 patches 6 years, 3 months ago
Maintainers: Paul Burton <pburton@wavecomp.com>, Paul Durrant <paul.durrant@citrix.com>, Anthony Perard <anthony.perard@citrix.com>, Juan Quintela <quintela@redhat.com>, Rob Herring <robh@kernel.org>, Cornelia Huck <cohuck@redhat.com>, Richard Henderson <rth@twiddle.net>, Jia Liu <proljc@gmail.com>, "Dr. David Alan Gilbert" <dgilbert@redhat.com>, Aleksandar Markovic <amarkovic@wavecomp.com>, Bastian Koppelmann <kbastian@mail.uni-paderborn.de>, David Gibson <david@gibson.dropbear.id.au>, Igor Mammedov <imammedo@redhat.com>, Marcelo Tosatti <mtosatti@redhat.com>, Andrey Smirnov <andrew.smirnov@gmail.com>, Andrew Baumann <Andrew.Baumann@microsoft.com>, Jean-Christophe Dubois <jcd@tribudubois.net>, Stefano Stabellini <sstabellini@kernel.org>, Aleksandar Rikalo <arikalo@wavecomp.com>, Sagar Karandikar <sagark@eecs.berkeley.edu>, Aurelien Jarno <aurelien@aurel32.net>, "Philippe Mathieu-Daudé" <f4bug@amsat.org>, Halil Pasic <pasic@linux.ibm.com>, Stafford Horne <shorne@gmail.com>, Artyom Tarasenko <atar4qemu@gmail.com>, Paolo Bonzini <pbonzini@redhat.com>, Marcel Apfelbaum <marcel.apfelbaum@gmail.com>, Helge Deller <deller@gmx.de>, "Philippe Mathieu-Daudé" <philmd@redhat.com>, "Hervé Poussineau" <hpoussin@reactos.org>, Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>, Palmer Dabbelt <palmer@sifive.com>, Eric Blake <eblake@redhat.com>, Peter Maydell <peter.maydell@linaro.org>, Eduardo Habkost <ehabkost@redhat.com>, Alistair Francis <alistair@alistair23.me>, "Cédric Le Goater" <clg@kaod.org>, "Alex Bennée" <alex.bennee@linaro.org>, "Edgar E. Iglesias" <edgar.iglesias@gmail.com>, Christian Borntraeger <borntraeger@de.ibm.com>, Max Filippov <jcmvbkbc@gmail.com>, Markus Armbruster <armbru@redhat.com>, Alistair Francis <Alistair.Francis@wdc.com>, David Hildenbrand <david@redhat.com>, "Michael S. Tsirkin" <mst@redhat.com>
[Qemu-devel] [PULL 06/29] hw/s390x: Replace global smp variables with machine smp properties
Posted by Eduardo Habkost 6 years, 3 months ago
From: Like Xu <like.xu@linux.intel.com>

The global smp variables in s390x are replaced with smp machine properties.

A local variable of the same name would be introduced in the declaration
phase if it's used widely in the context OR replace it on the spot if it's
only used once. No semantic changes.

Signed-off-by: Like Xu <like.xu@linux.intel.com>
Message-Id: <20190518205428.90532-7-like.xu@linux.intel.com>
Acked-by: Christian Borntraeger <borntraeger@de.ibm.com>
Reviewed-by: Cornelia Huck <cohuck@redhat.com>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
---
 hw/s390x/s390-virtio-ccw.c | 3 ++-
 hw/s390x/sclp.c            | 2 +-
 target/s390x/cpu.c         | 3 +++
 target/s390x/excp_helper.c | 5 +++++
 4 files changed, 11 insertions(+), 2 deletions(-)

diff --git a/hw/s390x/s390-virtio-ccw.c b/hw/s390x/s390-virtio-ccw.c
index e09bf8f1b6..5b6a9a4e55 100644
--- a/hw/s390x/s390-virtio-ccw.c
+++ b/hw/s390x/s390-virtio-ccw.c
@@ -84,7 +84,7 @@ static void s390_init_cpus(MachineState *machine)
     /* initialize possible_cpus */
     mc->possible_cpu_arch_ids(machine);
 
-    for (i = 0; i < smp_cpus; i++) {
+    for (i = 0; i < machine->smp.cpus; i++) {
         s390x_new_cpu(machine->cpu_type, i, &error_fatal);
     }
 }
@@ -411,6 +411,7 @@ static CpuInstanceProperties s390_cpu_index_to_props(MachineState *ms,
 static const CPUArchIdList *s390_possible_cpu_arch_ids(MachineState *ms)
 {
     int i;
+    unsigned int max_cpus = ms->smp.max_cpus;
 
     if (ms->possible_cpus) {
         g_assert(ms->possible_cpus && ms->possible_cpus->len == max_cpus);
diff --git a/hw/s390x/sclp.c b/hw/s390x/sclp.c
index 4510a800cb..fac7c3bb6c 100644
--- a/hw/s390x/sclp.c
+++ b/hw/s390x/sclp.c
@@ -64,7 +64,7 @@ static void read_SCP_info(SCLPDevice *sclp, SCCB *sccb)
     prepare_cpu_entries(sclp, read_info->entries, &cpu_count);
     read_info->entries_cpu = cpu_to_be16(cpu_count);
     read_info->offset_cpu = cpu_to_be16(offsetof(ReadInfo, entries));
-    read_info->highest_cpu = cpu_to_be16(max_cpus - 1);
+    read_info->highest_cpu = cpu_to_be16(machine->smp.max_cpus - 1);
 
     read_info->ibc_val = cpu_to_be32(s390_get_ibc_val());
 
diff --git a/target/s390x/cpu.c b/target/s390x/cpu.c
index f2d93644d5..cafb8fe3f0 100644
--- a/target/s390x/cpu.c
+++ b/target/s390x/cpu.c
@@ -37,6 +37,7 @@
 #include "hw/qdev-properties.h"
 #ifndef CONFIG_USER_ONLY
 #include "hw/hw.h"
+#include "hw/boards.h"
 #include "sysemu/arch_init.h"
 #include "sysemu/sysemu.h"
 #include "sysemu/tcg.h"
@@ -197,6 +198,8 @@ static void s390_cpu_realizefn(DeviceState *dev, Error **errp)
     }
 
 #if !defined(CONFIG_USER_ONLY)
+    MachineState *ms = MACHINE(qdev_get_machine());
+    unsigned int max_cpus = ms->smp.max_cpus;
     if (cpu->env.core_id >= max_cpus) {
         error_setg(&err, "Unable to add CPU with core-id: %" PRIu32
                    ", maximum core-id: %d", cpu->env.core_id,
diff --git a/target/s390x/excp_helper.c b/target/s390x/excp_helper.c
index 202456cdc5..892f659d5a 100644
--- a/target/s390x/excp_helper.c
+++ b/target/s390x/excp_helper.c
@@ -31,6 +31,7 @@
 #ifndef CONFIG_USER_ONLY
 #include "sysemu/sysemu.h"
 #include "hw/s390x/s390_flic.h"
+#include "hw/boards.h"
 #endif
 
 void QEMU_NORETURN tcg_s390_program_interrupt(CPUS390XState *env, uint32_t code,
@@ -315,6 +316,10 @@ static void do_ext_interrupt(CPUS390XState *env)
         g_assert(cpu_addr < S390_MAX_CPUS);
         lowcore->cpu_addr = cpu_to_be16(cpu_addr);
         clear_bit(cpu_addr, env->emergency_signals);
+#ifndef CONFIG_USER_ONLY
+        MachineState *ms = MACHINE(qdev_get_machine());
+        unsigned int max_cpus = ms->smp.max_cpus;
+#endif
         if (bitmap_empty(env->emergency_signals, max_cpus)) {
             env->pending_int &= ~INTERRUPT_EMERGENCY_SIGNAL;
         }
-- 
2.18.0.rc1.1.g3f1ff2140