Merge remote-tracking branch 'remotes/borntraeger/tags/s390x-20170714' into staging

s390x/kvm/migration/cpumodel: fixes, enhancements and cleanups

- add a network boot rom for s390 (Thomas Huth)
- migration of storage attributes like the CMMA used/unused state
- PCI related enhancements - full support for aen, ais and zpci
- migration support for css with vmstates (Halil Pasic)
- cpu model enhancements for cpu features
- guarded storage support

# gpg: Signature made Fri 14 Jul 2017 11:33:04 BST
# gpg:                using RSA key 0x117BBC80B5A61C7C
# gpg: Good signature from "Christian Borntraeger (IBM) <borntraeger@de.ibm.com>"
# Primary key fingerprint: F922 9381 A334 08F9 DBAB  FBCA 117B BC80 B5A6 1C7C

* remotes/borntraeger/tags/s390x-20170714: (40 commits)
  s390x/gdb: add gs registers
  s390x/arch_dump: also dump guarded storage control block
  s390x/kvm: enable guarded storage
  s390x/kvm: Enable KSS facility for nested virtualization
  s390x/cpumodel: add esop/esop2 to z12 model
  s390x/cpumodel: we are always in zarchitecture mode
  s390x/cpumodel: wire up new hardware features
  s390x/flic: migrate ais states
  s390x/cpumodel: add zpci, aen and ais facilities
  s390x: initialize cpu firstly
  pc-bios/s390: rebuild s390-ccw.img
  pc-bios/s390: add s390-netboot.img
  pc-bios/s390-ccw: Link libnet into the netboot image and do the TFTP load
  pc-bios/s390-ccw: Add virtio-net driver code
  pc-bios/s390-ccw: Add core files for the network bootloading program
  roms/SLOF: Update submodule to latest status
  pc-bios/s390-ccw: Add code for virtio feature negotiation
  pc-bios/s390-ccw: Remove unused structs from virtio.h
  pc-bios/s390-ccw: Move byteswap functions to a separate header
  pc-bios/s390-ccw: Add a write() function for stdio
  ...

Conflicts:
	target/s390x/kvm.c

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>

9 files changed, 137 insertions, 18 deletions

diff --git a/include/elf.h b/include/elf.h
index 0dbd3e968b..cd51434877 100644
--- a/include/elf.h
+++ b/include/elf.h
@@ -1476,6 +1476,7 @@ typedef struct elf64_shdr {
 #define NT_TASKSTRUCT	4
 #define NT_AUXV		6
 #define NT_PRXFPREG     0x46e62b7f      /* copied from gdb5.1/include/elf/common.h */
+#define NT_S390_GS_CB   0x30b           /* s390 guarded storage registers */
 #define NT_S390_VXRS_HIGH 0x30a         /* s390 vector registers 16-31 */
 #define NT_S390_VXRS_LOW  0x309         /* s390 vector registers 0-15 (lower half) */
 #define NT_S390_PREFIX  0x305           /* s390 prefix register */
diff --git a/include/hw/s390x/css.h b/include/hw/s390x/css.h
index dc1001bee1..5c5fe6b202 100644
--- a/include/hw/s390x/css.h
+++ b/include/hw/s390x/css.h
@@ -12,6 +12,7 @@
 #ifndef CSS_H
 #define CSS_H
 
+#include "cpu.h"
 #include "hw/s390x/adapter.h"
 #include "hw/s390x/s390_flic.h"
 #include "hw/s390x/ioinst.h"
@@ -89,10 +90,11 @@ struct SubchDev {
     bool thinint_active;
     uint8_t ccw_no_data_cnt;
     uint16_t migrated_schid; /* used for missmatch detection */
+    ORB orb;
     /* transport-provided data: */
     int (*ccw_cb) (SubchDev *, CCW1);
     void (*disable_cb)(SubchDev *);
-    int (*do_subchannel_work) (SubchDev *, ORB *);
+    int (*do_subchannel_work) (SubchDev *);
     SenseId id;
     void *driver_data;
 };
@@ -154,10 +156,9 @@ void css_generate_sch_crws(uint8_t cssid, uint8_t ssid, uint16_t schid,
 void css_generate_chp_crws(uint8_t cssid, uint8_t chpid);
 void css_generate_css_crws(uint8_t cssid);
 void css_clear_sei_pending(void);
-void css_adapter_interrupt(uint8_t isc);
 int s390_ccw_cmd_request(ORB *orb, SCSW *scsw, void *data);
-int do_subchannel_work_virtual(SubchDev *sub, ORB *orb);
-int do_subchannel_work_passthrough(SubchDev *sub, ORB *orb);
+int do_subchannel_work_virtual(SubchDev *sub);
+int do_subchannel_work_passthrough(SubchDev *sub);
 
 typedef enum {
     CSS_IO_ADAPTER_VIRTIO = 0,
@@ -165,9 +166,17 @@ typedef enum {
     CSS_IO_ADAPTER_TYPE_NUMS,
 } CssIoAdapterType;
 
+void css_adapter_interrupt(CssIoAdapterType type, uint8_t isc);
+int css_do_sic(CPUS390XState *env, uint8_t isc, uint16_t mode);
 uint32_t css_get_adapter_id(CssIoAdapterType type, uint8_t isc);
 void css_register_io_adapters(CssIoAdapterType type, bool swap, bool maskable,
-                              Error **errp);
+                              uint8_t flags, Error **errp);
+
+#ifndef CONFIG_KVM
+#define S390_ADAPTER_SUPPRESSIBLE 0x01
+#else
+#define S390_ADAPTER_SUPPRESSIBLE KVM_S390_ADAPTER_SUPPRESSIBLE
+#endif
 
 #ifndef CONFIG_USER_ONLY
 SubchDev *css_find_subch(uint8_t m, uint8_t cssid, uint8_t ssid,
@@ -225,4 +234,8 @@ extern const PropertyInfo css_devid_ro_propinfo;
  */
 SubchDev *css_create_sch(CssDevId bus_id, bool is_virtual, bool squash_mcss,
                          Error **errp);
+
+/** Turn on css migration */
+void css_register_vmstate(void);
+
 #endif
diff --git a/include/hw/s390x/s390-virtio-ccw.h b/include/hw/s390x/s390-virtio-ccw.h
index 3027555f6d..41a9d2862b 100644
--- a/include/hw/s390x/s390-virtio-ccw.h
+++ b/include/hw/s390x/s390-virtio-ccw.h
@@ -39,11 +39,21 @@ typedef struct S390CcwMachineClass {
     /*< public >*/
     bool ri_allowed;
     bool cpu_model_allowed;
+    bool css_migration_enabled;
+    bool gs_allowed;
 } S390CcwMachineClass;
 
 /* runtime-instrumentation allowed by the machine */
 bool ri_allowed(void);
 /* cpu model allowed by the machine */
 bool cpu_model_allowed(void);
+/* guarded-storage allowed by the machine */
+bool gs_allowed(void);
+
+/**
+ * Returns true if (vmstate based) migration of the channel subsystem
+ * is enabled, false if it is disabled.
+ */
+bool css_migration_enabled(void);
 
 #endif
diff --git a/include/hw/s390x/s390_flic.h b/include/hw/s390x/s390_flic.h
index caa6fc608d..7aab6ef7f0 100644
--- a/include/hw/s390x/s390_flic.h
+++ b/include/hw/s390x/s390_flic.h
@@ -44,7 +44,7 @@ typedef struct S390FLICState {
     SysBusDevice parent_obj;
     /* to limit AdapterRoutes.num_routes for compat */
     uint32_t adapter_routes_max_batch;
-
+    bool ais_supported;
 } S390FLICState;
 
 #define S390_FLIC_COMMON_CLASS(klass) \
@@ -56,13 +56,16 @@ typedef struct S390FLICStateClass {
     DeviceClass parent_class;
 
     int (*register_io_adapter)(S390FLICState *fs, uint32_t id, uint8_t isc,
-                               bool swap, bool maskable);
+                               bool swap, bool maskable, uint8_t flags);
     int (*io_adapter_map)(S390FLICState *fs, uint32_t id, uint64_t map_addr,
                           bool do_map);
     int (*add_adapter_routes)(S390FLICState *fs, AdapterRoutes *routes);
     void (*release_adapter_routes)(S390FLICState *fs, AdapterRoutes *routes);
     int (*clear_io_irq)(S390FLICState *fs, uint16_t subchannel_id,
                         uint16_t subchannel_nr);
+    int (*modify_ais_mode)(S390FLICState *fs, uint8_t isc, uint16_t mode);
+    int (*inject_airq)(S390FLICState *fs, uint8_t type, uint8_t isc,
+                       uint8_t flags);
 } S390FLICStateClass;
 
 #define TYPE_KVM_S390_FLIC "s390-flic-kvm"
@@ -73,13 +76,20 @@ typedef struct S390FLICStateClass {
 #define QEMU_S390_FLIC(obj) \
     OBJECT_CHECK(QEMUS390FLICState, (obj), TYPE_QEMU_S390_FLIC)
 
+#define SIC_IRQ_MODE_ALL 0
+#define SIC_IRQ_MODE_SINGLE 1
+#define AIS_MODE_MASK(isc) (0x80 >> isc)
+
 typedef struct QEMUS390FLICState {
     S390FLICState parent_obj;
+    uint8_t simm;
+    uint8_t nimm;
 } QEMUS390FLICState;
 
 void s390_flic_init(void);
 
 S390FLICState *s390_get_flic(void);
+bool ais_needed(void *opaque);
 
 #ifdef CONFIG_KVM
 DeviceState *s390_flic_kvm_create(void);
diff --git a/include/hw/s390x/sclp.h b/include/hw/s390x/sclp.h
index 3008a5148a..e71d526605 100644
--- a/include/hw/s390x/sclp.h
+++ b/include/hw/s390x/sclp.h
@@ -123,8 +123,7 @@ typedef struct ReadInfo {
     uint64_t facilities;                /* 48-55 */
     uint8_t  _reserved0[76 - 56];       /* 56-75 */
     uint32_t ibc_val;
-    uint8_t  conf_char[96 - 80];        /* 80-95 */
-    uint8_t  _reserved4[99 - 96];       /* 96-98 */
+    uint8_t  conf_char[99 - 80];        /* 80-98 */
     uint8_t mha_pow;
     uint32_t rnsize2;
     uint64_t rnmax2;
diff --git a/include/hw/s390x/storage-attributes.h b/include/hw/s390x/storage-attributes.h
new file mode 100644
index 0000000000..9be954d163
--- /dev/null
+++ b/include/hw/s390x/storage-attributes.h
@@ -0,0 +1,81 @@
+/*
+ * s390 storage attributes device
+ *
+ * Copyright 2016 IBM Corp.
+ * Author(s): Claudio Imbrenda <imbrenda@linux.vnet.ibm.com>
+ *
+ * This work is licensed under the terms of the GNU GPL, version 2 or (at
+ * your option) any later version. See the COPYING file in the top-level
+ * directory.
+ */
+
+#ifndef S390_STORAGE_ATTRIBUTES_H
+#define S390_STORAGE_ATTRIBUTES_H
+
+#include <hw/qdev.h>
+#include "monitor/monitor.h"
+
+#define TYPE_S390_STATTRIB "s390-storage_attributes"
+#define TYPE_QEMU_S390_STATTRIB "s390-storage_attributes-qemu"
+#define TYPE_KVM_S390_STATTRIB "s390-storage_attributes-kvm"
+
+#define S390_STATTRIB(obj) \
+    OBJECT_CHECK(S390StAttribState, (obj), TYPE_S390_STATTRIB)
+
+typedef struct S390StAttribState {
+    DeviceState parent_obj;
+    uint64_t migration_cur_gfn;
+    bool migration_enabled;
+} S390StAttribState;
+
+#define S390_STATTRIB_CLASS(klass) \
+    OBJECT_CLASS_CHECK(S390StAttribClass, (klass), TYPE_S390_STATTRIB)
+#define S390_STATTRIB_GET_CLASS(obj) \
+    OBJECT_GET_CLASS(S390StAttribClass, (obj), TYPE_S390_STATTRIB)
+
+typedef struct S390StAttribClass {
+    DeviceClass parent_class;
+    /* Return value: < 0 on error, or new count */
+    int (*get_stattr)(S390StAttribState *sa, uint64_t *start_gfn,
+                      uint32_t count, uint8_t *values);
+    int (*peek_stattr)(S390StAttribState *sa, uint64_t start_gfn,
+                       uint32_t count, uint8_t *values);
+    int (*set_stattr)(S390StAttribState *sa, uint64_t start_gfn,
+                      uint32_t count, uint8_t *values);
+    void (*synchronize)(S390StAttribState *sa);
+    int (*set_migrationmode)(S390StAttribState *sa, bool value);
+    int (*get_active)(S390StAttribState *sa);
+    long long (*get_dirtycount)(S390StAttribState *sa);
+} S390StAttribClass;
+
+#define QEMU_S390_STATTRIB(obj) \
+    OBJECT_CHECK(QEMUS390StAttribState, (obj), TYPE_QEMU_S390_STATTRIB)
+
+typedef struct QEMUS390StAttribState {
+    S390StAttribState parent_obj;
+} QEMUS390StAttribState;
+
+#define KVM_S390_STATTRIB(obj) \
+    OBJECT_CHECK(KVMS390StAttribState, (obj), TYPE_KVM_S390_STATTRIB)
+
+typedef struct KVMS390StAttribState {
+    S390StAttribState parent_obj;
+    uint64_t still_dirty;
+    uint8_t *incoming_buffer;
+} KVMS390StAttribState;
+
+void s390_stattrib_init(void);
+
+#ifdef CONFIG_KVM
+Object *kvm_s390_stattrib_create(void);
+#else
+static inline Object *kvm_s390_stattrib_create(void)
+{
+    return NULL;
+}
+#endif
+
+void hmp_info_cmma(Monitor *mon, const QDict *qdict);
+void hmp_migrationmode(Monitor *mon, const QDict *qdict);
+
+#endif /* S390_STORAGE_ATTRIBUTES_H */
diff --git a/include/standard-headers/asm-x86/hyperv.h b/include/standard-headers/asm-x86/hyperv.h
index d0c6e0a079..fac7651740 100644
--- a/include/standard-headers/asm-x86/hyperv.h
+++ b/include/standard-headers/asm-x86/hyperv.h
@@ -34,16 +34,10 @@
 #define HV_X64_MSR_REFERENCE_TSC		0x40000021
 
 /*
- * There is a single feature flag that signifies the presence of the MSR
- * that can be used to retrieve both the local APIC Timer frequency as
- * well as the TSC frequency.
+ * There is a single feature flag that signifies if the partition has access
+ * to MSRs with local APIC and TSC frequencies.
  */
-
-/* Local APIC timer frequency MSR (HV_X64_MSR_APIC_FREQUENCY) is available */
-#define HV_X64_MSR_APIC_FREQUENCY_AVAILABLE (1 << 11)
-
-/* TSC frequency MSR (HV_X64_MSR_TSC_FREQUENCY) is available */
-#define HV_X64_MSR_TSC_FREQUENCY_AVAILABLE (1 << 11)
+#define HV_X64_ACCESS_FREQUENCY_MSRS		(1 << 11)
 
 /*
  * Basic SynIC MSRs (HV_X64_MSR_SCONTROL through HV_X64_MSR_EOM
@@ -73,6 +67,9 @@
   */
 #define HV_X64_MSR_STAT_PAGES_AVAILABLE		(1 << 8)
 
+/* Frequency MSRs available */
+#define HV_FEATURE_FREQUENCY_MSRS_AVAILABLE	(1 << 8)
+
 /* Crash MSR available */
 #define HV_FEATURE_GUEST_CRASH_MSR_AVAILABLE (1 << 10)
 
@@ -153,6 +150,12 @@
 #define HV_X64_DEPRECATING_AEOI_RECOMMENDED	(1 << 9)
 
 /*
+ * HV_VP_SET available
+ */
+#define HV_X64_EX_PROCESSOR_MASKS_RECOMMENDED	(1 << 11)
+
+
+/*
  * Crash notification flag.
  */
 #define HV_CRASH_CTL_CRASH_NOTIFY (1ULL << 63)
diff --git a/include/standard-headers/linux/input-event-codes.h b/include/standard-headers/linux/input-event-codes.h
index 29d463af37..2fa0f4ea6b 100644
--- a/include/standard-headers/linux/input-event-codes.h
+++ b/include/standard-headers/linux/input-event-codes.h
@@ -600,6 +600,7 @@
 #define KEY_APPSELECT		0x244	/* AL Select Task/Application */
 #define KEY_SCREENSAVER		0x245	/* AL Screen Saver */
 #define KEY_VOICECOMMAND		0x246	/* Listening Voice Command */
+#define KEY_ASSISTANT		0x247	/* AL Context-aware desktop assistant */
 
 #define KEY_BRIGHTNESS_MIN		0x250	/* Set Brightness to Minimum */
 #define KEY_BRIGHTNESS_MAX		0x251	/* Set Brightness to Maximum */
diff --git a/include/standard-headers/linux/pci_regs.h b/include/standard-headers/linux/pci_regs.h
index d56bb00510..c22d3ebaca 100644
--- a/include/standard-headers/linux/pci_regs.h
+++ b/include/standard-headers/linux/pci_regs.h
@@ -517,6 +517,7 @@
 #define  PCI_EXP_LNKCAP_SLS	0x0000000f /* Supported Link Speeds */
 #define  PCI_EXP_LNKCAP_SLS_2_5GB 0x00000001 /* LNKCAP2 SLS Vector bit 0 */
 #define  PCI_EXP_LNKCAP_SLS_5_0GB 0x00000002 /* LNKCAP2 SLS Vector bit 1 */
+#define  PCI_EXP_LNKCAP_SLS_8_0GB 0x00000003 /* LNKCAP2 SLS Vector bit 2 */
 #define  PCI_EXP_LNKCAP_MLW	0x000003f0 /* Maximum Link Width */
 #define  PCI_EXP_LNKCAP_ASPMS	0x00000c00 /* ASPM Support */
 #define  PCI_EXP_LNKCAP_L0SEL	0x00007000 /* L0s Exit Latency */