On 09/05/2013 08:28 AM, Andreas Färber wrote:
Am 01.08.2013 16:12, schrieb Jason J. Herne:
From: "Jason J. Herne" <jjhe...@us.ibm.com>
s390_new_cpu is created to encapsulate the creation of a new QOM S390CPU
object given a cpuid and a model string.
All actual cpu initialization code is moved from boot time specific
functions to
s390_cpu_initfn (qom init routine) or to s390_new_cpu. This is done to
allow us
to use the same basic code path for a cpu created at boot time and one
created
during a hotplug operation.
Intentionally indented?
Signed-off-by: Jason J. Herne <jjhe...@us.ibm.com>
---
hw/s390x/s390-virtio.c | 25 ++++++++++++-------------
target-s390x/cpu.c | 4 ++--
target-s390x/cpu.h | 1 +
target-s390x/helper.c | 12 ++++++++++++
4 files changed, 27 insertions(+), 15 deletions(-)
diff --git a/hw/s390x/s390-virtio.c b/hw/s390x/s390-virtio.c
index 5ad9cf3..103f32e 100644
--- a/hw/s390x/s390-virtio.c
+++ b/hw/s390x/s390-virtio.c
...
@@ -197,19 +202,13 @@ void s390_init_cpus(const char *cpu_model)
cpu_model = "host";
}
- ipi_states = g_malloc(sizeof(S390CPU *) * smp_cpus);
-
- for (i = 0; i < smp_cpus; i++) {
- S390CPU *cpu;
- CPUState *cs;
+ ipi_states = g_malloc(sizeof(S390CPU *) * max_cpus);
- cpu = cpu_s390x_init(cpu_model);
- cs = CPU(cpu);
-
- ipi_states[i] = cpu;
- cs->halted = 1;
- cpu->env.exception_index = EXCP_HLT;
- cpu->env.storage_keys = s390_get_storage_keys();
+ for (i = 0; i < max_cpus; i++) {
+ ipi_states[i] = NULL;
Using g_malloc0() above would hopefully be more efficient and would
allow to leave the loop untouched for easier review.
I don't follow. I'm completely changing this loop. I do not believe we
can obtain the same functionality implemented here while not touching
the loop.
+ if (i < smp_cpus) {
+ s390_new_cpu(cpu_model, i);
+ }
}
}
diff --git a/target-s390x/cpu.c b/target-s390x/cpu.c
index 6be6c08..c90a91c 100644
--- a/target-s390x/cpu.c
+++ b/target-s390x/cpu.c
@@ -116,7 +116,6 @@ static void s390_cpu_initfn(Object *obj)
S390CPU *cpu = S390_CPU(obj);
CPUS390XState *env = &cpu->env;
static bool inited;
- static int cpu_num = 0;
#if !defined(CONFIG_USER_ONLY)
struct tm tm;
#endif
@@ -135,8 +134,9 @@ static void s390_cpu_initfn(Object *obj)
* cpu counter in s390_cpu_reset to a negative number at
* initial ipl */
cs->halted = 1;
+ cpu->env.exception_index = EXCP_HLT;
+ env->storage_keys = s390_get_storage_keys();
4/8?
Are you asking if this belongs in patch #4? if so, I would say no. It
does deal with storage keys, yes. But we're not changing storage key
semantics here (as we are in patch 4), we're just moving where the
storage key ptr gets set. This is in support of re-organizing how cpus
are initialized as per patch title/description.
--
-- Jason J. Herne (jjhe...@linux.vnet.ibm.com)
