linux-kernel - [PATCH v3 07/16] target-s390x: Define cpu model specific facility lists

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Date:	Mon,  2 Mar 2015 13:43:59 +0100
From:	Michael Mueller <mimu@...ux.vnet.ibm.com>
To:	qemu-devel@...gnu.org, kvm@...r.kernel.org,
	linux-s390@...r.kernel.org, linux-kernel@...r.kernel.org
Cc:	Gleb Natapov <gleb@...nel.org>, Alexander Graf <agraf@...e.de>,
	Christian Borntraeger <borntraeger@...ibm.com>,
	"Jason J. Herne" <jjherne@...ux.vnet.ibm.com>,
	Cornelia Huck <cornelia.huck@...ibm.com>,
	Paolo Bonzini <pbonzini@...hat.com>,
	Andreas Faerber <afaerber@...e.de>,
	Richard Henderson <rth@...ddle.net>,
	Eduardo Habkost <ehabkost@...hat.com>,
	Michael Mueller <mimu@...ux.vnet.ibm.com>
Subject: [PATCH v3 07/16] target-s390x: Define cpu model specific facility lists

This patch defines S390 cpu facilities and their presence at the
different cpu model levels. Beside defining a base which facilities
have to be requested per cpu model, these sets are associated to the
defined cpu classes and used to calculate the list of supported
cpu models in context of the current hosting machine model.

The also defined qemu side facility mask allows to implement and enable
facilities in QEMU land.

Signed-off-by: Michael Mueller <mimu@...ux.vnet.ibm.com>
---
 target-s390x/cpu-models.c | 12 ++++++++++++
 target-s390x/cpu-models.h |  8 ++++++++
 target-s390x/cpu.c        |  1 +
 3 files changed, 21 insertions(+)

diff --git a/target-s390x/cpu-models.c b/target-s390x/cpu-models.c
index 3520691..bd9f0bc 100644
--- a/target-s390x/cpu-models.c
+++ b/target-s390x/cpu-models.c
@@ -12,6 +12,7 @@
 
 #include "qemu-common.h"
 #include "cpu-models.h"
+#include "gen-facilities.h"
 
 #define S390_PROC_DEF(_name, _cpu_id, _desc)                            \
     static void                                                         \
@@ -20,6 +21,10 @@
     {                                                                   \
         DeviceClass *dc = DEVICE_CLASS(oc);                             \
         S390CPUClass *cc = S390_CPU_CLASS(oc);                          \
+        uint64_t nbits = FAC_LIST_CPU_S390_SIZE_UINT1;                  \
+        uint64_t fac_list[FAC_LIST_CPU_S390_SIZE_UINT64] = {            \
+            glue(FAC_LIST_, _cpu_id)                                    \
+        };                                                              \
                                                                         \
         cc->is_active[ACCEL_ID_KVM] = true;                             \
         cc->mach.ga    = cpu_ga(_cpu_id);                               \
@@ -30,6 +35,7 @@
         cc->proc.id    = S390_DEF_ID;                                   \
         cc->proc.type  = cpu_type(_cpu_id);                             \
         cc->proc.ibc   = S390_DEF_IBC;                                  \
+        bitmap_copy(cc->proc.fac_list, fac_list, nbits);                \
         dc->desc       = _desc;                                         \
     }                                                                   \
     static const TypeInfo                                               \
@@ -46,6 +52,11 @@
     }                                                                   \
     type_init(glue(_cpu_id, _cpu_register_types))
 
+/* facilities implemented by qemu */
+uint64_t qemu_s390_fac_list_mask[FAC_LIST_CPU_S390_SIZE_UINT64] = {
+    FAC_LIST_CPU_S390_MASK_QEMU
+};
+
 /* define S390 CPU model classes */
 S390_PROC_DEF("2064-ga1", CPU_S390_2064_GA1, "IBM zSeries 900 GA1")
 S390_PROC_DEF("2064-ga2", CPU_S390_2064_GA2, "IBM zSeries 900 GA2")
@@ -75,3 +86,4 @@ S390_PROC_DEF("2818-ga1", CPU_S390_2818_GA1, "IBM zEnterprise 114 GA1")
 S390_PROC_DEF("2827-ga1", CPU_S390_2827_GA1, "IBM zEnterprise EC12 GA1")
 S390_PROC_DEF("2827-ga2", CPU_S390_2827_GA2, "IBM zEnterprise EC12 GA2")
 S390_PROC_DEF("2828-ga1", CPU_S390_2828_GA1, "IBM zEnterprise BC12 GA1")
+
diff --git a/target-s390x/cpu-models.h b/target-s390x/cpu-models.h
index db681bf..d5f0b59 100644
--- a/target-s390x/cpu-models.h
+++ b/target-s390x/cpu-models.h
@@ -13,6 +13,14 @@
 #ifndef TARGET_S390X_CPU_MODELS_H
 #define TARGET_S390X_CPU_MODELS_H
 
+#include "cpu-facilities.h"
+#include "gen-facilities.h"
+
+#define FAC_LIST_ARCH_S390_SIZE_UINT1 \
+    (FAC_LIST_ARCH_S390_SIZE_UINT8 * BITS_PER_BYTE)
+#define FAC_LIST_ARCH_S390_SIZE_UINT64 \
+    (FAC_LIST_ARCH_S390_SIZE_UINT8 / sizeof(uint64_t))
+
 #define S390_EC 0x1
 #define S390_BC 0x2
 
diff --git a/target-s390x/cpu.c b/target-s390x/cpu.c
index d2f6312..7a26b91 100644
--- a/target-s390x/cpu.c
+++ b/target-s390x/cpu.c
@@ -29,6 +29,7 @@
 #include "qemu/error-report.h"
 #include "hw/hw.h"
 #include "trace.h"
+#include "cpu-models.h"
 #ifndef CONFIG_USER_ONLY
 #include "sysemu/arch_init.h"
 #endif
-- 
1.8.3.1

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