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authorThomas Huth <thuth@redhat.com>2017-07-24 10:52:47 +0200
committerCornelia Huck <cohuck@redhat.com>2017-07-25 09:17:42 +0200
commit3d6722051bc7876832003215533f36df9f33cc56 (patch)
treea619fab9f0ff018987f4970999f9085cf54f4e1c /target
parentb5bd2e91a6e5c7b87f1ea592c8604af59e87bf37 (diff)
target/s390x: Move diag helpers to a separate file
misc_helper.c won't be compiled with --disable-tcg anymore, but we still need the diag helpers in KVM builds, too, so move the helper functions to a separate file. Reviewed-by: Richard Henderson <rth@twiddle.net> Signed-off-by: Thomas Huth <thuth@redhat.com> Message-Id: <1500886370-14572-3-git-send-email-thuth@redhat.com> Signed-off-by: Cornelia Huck <cohuck@redhat.com>
Diffstat (limited to 'target')
-rw-r--r--target/s390x/Makefile.objs2
-rw-r--r--target/s390x/diag.c179
-rw-r--r--target/s390x/misc_helper.c167
3 files changed, 180 insertions, 168 deletions
diff --git a/target/s390x/Makefile.objs b/target/s390x/Makefile.objs
index 46f6a8c6b6..80028521ef 100644
--- a/target/s390x/Makefile.objs
+++ b/target/s390x/Makefile.objs
@@ -1,7 +1,7 @@
obj-y += translate.o helper.o cpu.o interrupt.o
obj-y += int_helper.o fpu_helper.o cc_helper.o mem_helper.o misc_helper.o
obj-y += gdbstub.o cpu_models.o cpu_features.o
-obj-$(CONFIG_SOFTMMU) += machine.o ioinst.o arch_dump.o mmu_helper.o
+obj-$(CONFIG_SOFTMMU) += machine.o ioinst.o arch_dump.o mmu_helper.o diag.o
obj-$(CONFIG_KVM) += kvm.o
# build and run feature list generator
diff --git a/target/s390x/diag.c b/target/s390x/diag.c
new file mode 100644
index 0000000000..10ac845bcd
--- /dev/null
+++ b/target/s390x/diag.c
@@ -0,0 +1,179 @@
+/*
+ * S390x DIAG instruction helper functions
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ */
+
+#include "qemu/osdep.h"
+#include "cpu.h"
+#include "exec/address-spaces.h"
+#include "exec/exec-all.h"
+#include "hw/watchdog/wdt_diag288.h"
+#include "sysemu/cpus.h"
+#include "hw/s390x/ipl.h"
+
+static int modified_clear_reset(S390CPU *cpu)
+{
+ S390CPUClass *scc = S390_CPU_GET_CLASS(cpu);
+ CPUState *t;
+
+ pause_all_vcpus();
+ cpu_synchronize_all_states();
+ CPU_FOREACH(t) {
+ run_on_cpu(t, s390_do_cpu_full_reset, RUN_ON_CPU_NULL);
+ }
+ s390_cmma_reset();
+ subsystem_reset();
+ s390_crypto_reset();
+ scc->load_normal(CPU(cpu));
+ cpu_synchronize_all_post_reset();
+ resume_all_vcpus();
+ return 0;
+}
+
+static int load_normal_reset(S390CPU *cpu)
+{
+ S390CPUClass *scc = S390_CPU_GET_CLASS(cpu);
+ CPUState *t;
+
+ pause_all_vcpus();
+ cpu_synchronize_all_states();
+ CPU_FOREACH(t) {
+ run_on_cpu(t, s390_do_cpu_reset, RUN_ON_CPU_NULL);
+ }
+ s390_cmma_reset();
+ subsystem_reset();
+ scc->initial_cpu_reset(CPU(cpu));
+ scc->load_normal(CPU(cpu));
+ cpu_synchronize_all_post_reset();
+ resume_all_vcpus();
+ return 0;
+}
+
+int handle_diag_288(CPUS390XState *env, uint64_t r1, uint64_t r3)
+{
+ uint64_t func = env->regs[r1];
+ uint64_t timeout = env->regs[r1 + 1];
+ uint64_t action = env->regs[r3];
+ Object *obj;
+ DIAG288State *diag288;
+ DIAG288Class *diag288_class;
+
+ if (r1 % 2 || action != 0) {
+ return -1;
+ }
+
+ /* Timeout must be more than 15 seconds except for timer deletion */
+ if (func != WDT_DIAG288_CANCEL && timeout < 15) {
+ return -1;
+ }
+
+ obj = object_resolve_path_type("", TYPE_WDT_DIAG288, NULL);
+ if (!obj) {
+ return -1;
+ }
+
+ diag288 = DIAG288(obj);
+ diag288_class = DIAG288_GET_CLASS(diag288);
+ return diag288_class->handle_timer(diag288, func, timeout);
+}
+
+#define DIAG_308_RC_OK 0x0001
+#define DIAG_308_RC_NO_CONF 0x0102
+#define DIAG_308_RC_INVALID 0x0402
+
+void handle_diag_308(CPUS390XState *env, uint64_t r1, uint64_t r3)
+{
+ uint64_t addr = env->regs[r1];
+ uint64_t subcode = env->regs[r3];
+ IplParameterBlock *iplb;
+
+ if (env->psw.mask & PSW_MASK_PSTATE) {
+ program_interrupt(env, PGM_PRIVILEGED, ILEN_AUTO);
+ return;
+ }
+
+ if ((subcode & ~0x0ffffULL) || (subcode > 6)) {
+ program_interrupt(env, PGM_SPECIFICATION, ILEN_AUTO);
+ return;
+ }
+
+ switch (subcode) {
+ case 0:
+ modified_clear_reset(s390_env_get_cpu(env));
+ if (tcg_enabled()) {
+ cpu_loop_exit(CPU(s390_env_get_cpu(env)));
+ }
+ break;
+ case 1:
+ load_normal_reset(s390_env_get_cpu(env));
+ if (tcg_enabled()) {
+ cpu_loop_exit(CPU(s390_env_get_cpu(env)));
+ }
+ break;
+ case 3:
+ s390_reipl_request();
+ if (tcg_enabled()) {
+ cpu_loop_exit(CPU(s390_env_get_cpu(env)));
+ }
+ break;
+ case 5:
+ if ((r1 & 1) || (addr & 0x0fffULL)) {
+ program_interrupt(env, PGM_SPECIFICATION, ILEN_AUTO);
+ return;
+ }
+ if (!address_space_access_valid(&address_space_memory, addr,
+ sizeof(IplParameterBlock), false)) {
+ program_interrupt(env, PGM_ADDRESSING, ILEN_AUTO);
+ return;
+ }
+ iplb = g_malloc0(sizeof(IplParameterBlock));
+ cpu_physical_memory_read(addr, iplb, sizeof(iplb->len));
+ if (!iplb_valid_len(iplb)) {
+ env->regs[r1 + 1] = DIAG_308_RC_INVALID;
+ goto out;
+ }
+
+ cpu_physical_memory_read(addr, iplb, be32_to_cpu(iplb->len));
+
+ if (!iplb_valid_ccw(iplb) && !iplb_valid_fcp(iplb)) {
+ env->regs[r1 + 1] = DIAG_308_RC_INVALID;
+ goto out;
+ }
+
+ s390_ipl_update_diag308(iplb);
+ env->regs[r1 + 1] = DIAG_308_RC_OK;
+out:
+ g_free(iplb);
+ return;
+ case 6:
+ if ((r1 & 1) || (addr & 0x0fffULL)) {
+ program_interrupt(env, PGM_SPECIFICATION, ILEN_AUTO);
+ return;
+ }
+ if (!address_space_access_valid(&address_space_memory, addr,
+ sizeof(IplParameterBlock), true)) {
+ program_interrupt(env, PGM_ADDRESSING, ILEN_AUTO);
+ return;
+ }
+ iplb = s390_ipl_get_iplb();
+ if (iplb) {
+ cpu_physical_memory_write(addr, iplb, be32_to_cpu(iplb->len));
+ env->regs[r1 + 1] = DIAG_308_RC_OK;
+ } else {
+ env->regs[r1 + 1] = DIAG_308_RC_NO_CONF;
+ }
+ return;
+ default:
+ hw_error("Unhandled diag308 subcode %" PRIx64, subcode);
+ break;
+ }
+}
diff --git a/target/s390x/misc_helper.c b/target/s390x/misc_helper.c
index b5081019c5..6a90ad55cc 100644
--- a/target/s390x/misc_helper.c
+++ b/target/s390x/misc_helper.c
@@ -24,22 +24,15 @@
#include "exec/memory.h"
#include "qemu/host-utils.h"
#include "exec/helper-proto.h"
-#include "sysemu/kvm.h"
#include "qemu/timer.h"
-#include "qemu/main-loop.h"
#include "exec/address-spaces.h"
-#ifdef CONFIG_KVM
-#include <linux/kvm.h>
-#endif
#include "exec/exec-all.h"
#include "exec/cpu_ldst.h"
#if !defined(CONFIG_USER_ONLY)
-#include "hw/watchdog/wdt_diag288.h"
#include "sysemu/cpus.h"
#include "sysemu/sysemu.h"
#include "hw/s390x/ebcdic.h"
-#include "hw/s390x/ipl.h"
#endif
/* #define DEBUG_HELPER */
@@ -116,166 +109,6 @@ uint32_t HELPER(servc)(CPUS390XState *env, uint64_t r1, uint64_t r2)
return r;
}
-#ifndef CONFIG_USER_ONLY
-static int modified_clear_reset(S390CPU *cpu)
-{
- S390CPUClass *scc = S390_CPU_GET_CLASS(cpu);
- CPUState *t;
-
- pause_all_vcpus();
- cpu_synchronize_all_states();
- CPU_FOREACH(t) {
- run_on_cpu(t, s390_do_cpu_full_reset, RUN_ON_CPU_NULL);
- }
- s390_cmma_reset();
- subsystem_reset();
- s390_crypto_reset();
- scc->load_normal(CPU(cpu));
- cpu_synchronize_all_post_reset();
- resume_all_vcpus();
- return 0;
-}
-
-static int load_normal_reset(S390CPU *cpu)
-{
- S390CPUClass *scc = S390_CPU_GET_CLASS(cpu);
- CPUState *t;
-
- pause_all_vcpus();
- cpu_synchronize_all_states();
- CPU_FOREACH(t) {
- run_on_cpu(t, s390_do_cpu_reset, RUN_ON_CPU_NULL);
- }
- s390_cmma_reset();
- subsystem_reset();
- scc->initial_cpu_reset(CPU(cpu));
- scc->load_normal(CPU(cpu));
- cpu_synchronize_all_post_reset();
- resume_all_vcpus();
- return 0;
-}
-
-int handle_diag_288(CPUS390XState *env, uint64_t r1, uint64_t r3)
-{
- uint64_t func = env->regs[r1];
- uint64_t timeout = env->regs[r1 + 1];
- uint64_t action = env->regs[r3];
- Object *obj;
- DIAG288State *diag288;
- DIAG288Class *diag288_class;
-
- if (r1 % 2 || action != 0) {
- return -1;
- }
-
- /* Timeout must be more than 15 seconds except for timer deletion */
- if (func != WDT_DIAG288_CANCEL && timeout < 15) {
- return -1;
- }
-
- obj = object_resolve_path_type("", TYPE_WDT_DIAG288, NULL);
- if (!obj) {
- return -1;
- }
-
- diag288 = DIAG288(obj);
- diag288_class = DIAG288_GET_CLASS(diag288);
- return diag288_class->handle_timer(diag288, func, timeout);
-}
-
-#define DIAG_308_RC_OK 0x0001
-#define DIAG_308_RC_NO_CONF 0x0102
-#define DIAG_308_RC_INVALID 0x0402
-
-void handle_diag_308(CPUS390XState *env, uint64_t r1, uint64_t r3)
-{
- uint64_t addr = env->regs[r1];
- uint64_t subcode = env->regs[r3];
- IplParameterBlock *iplb;
-
- if (env->psw.mask & PSW_MASK_PSTATE) {
- program_interrupt(env, PGM_PRIVILEGED, ILEN_AUTO);
- return;
- }
-
- if ((subcode & ~0x0ffffULL) || (subcode > 6)) {
- program_interrupt(env, PGM_SPECIFICATION, ILEN_AUTO);
- return;
- }
-
- switch (subcode) {
- case 0:
- modified_clear_reset(s390_env_get_cpu(env));
- if (tcg_enabled()) {
- cpu_loop_exit(CPU(s390_env_get_cpu(env)));
- }
- break;
- case 1:
- load_normal_reset(s390_env_get_cpu(env));
- if (tcg_enabled()) {
- cpu_loop_exit(CPU(s390_env_get_cpu(env)));
- }
- break;
- case 3:
- s390_reipl_request();
- if (tcg_enabled()) {
- cpu_loop_exit(CPU(s390_env_get_cpu(env)));
- }
- break;
- case 5:
- if ((r1 & 1) || (addr & 0x0fffULL)) {
- program_interrupt(env, PGM_SPECIFICATION, ILEN_AUTO);
- return;
- }
- if (!address_space_access_valid(&address_space_memory, addr,
- sizeof(IplParameterBlock), false)) {
- program_interrupt(env, PGM_ADDRESSING, ILEN_AUTO);
- return;
- }
- iplb = g_malloc0(sizeof(IplParameterBlock));
- cpu_physical_memory_read(addr, iplb, sizeof(iplb->len));
- if (!iplb_valid_len(iplb)) {
- env->regs[r1 + 1] = DIAG_308_RC_INVALID;
- goto out;
- }
-
- cpu_physical_memory_read(addr, iplb, be32_to_cpu(iplb->len));
-
- if (!iplb_valid_ccw(iplb) && !iplb_valid_fcp(iplb)) {
- env->regs[r1 + 1] = DIAG_308_RC_INVALID;
- goto out;
- }
-
- s390_ipl_update_diag308(iplb);
- env->regs[r1 + 1] = DIAG_308_RC_OK;
-out:
- g_free(iplb);
- return;
- case 6:
- if ((r1 & 1) || (addr & 0x0fffULL)) {
- program_interrupt(env, PGM_SPECIFICATION, ILEN_AUTO);
- return;
- }
- if (!address_space_access_valid(&address_space_memory, addr,
- sizeof(IplParameterBlock), true)) {
- program_interrupt(env, PGM_ADDRESSING, ILEN_AUTO);
- return;
- }
- iplb = s390_ipl_get_iplb();
- if (iplb) {
- cpu_physical_memory_write(addr, iplb, be32_to_cpu(iplb->len));
- env->regs[r1 + 1] = DIAG_308_RC_OK;
- } else {
- env->regs[r1 + 1] = DIAG_308_RC_NO_CONF;
- }
- return;
- default:
- hw_error("Unhandled diag308 subcode %" PRIx64, subcode);
- break;
- }
-}
-#endif
-
void HELPER(diag)(CPUS390XState *env, uint32_t r1, uint32_t r3, uint32_t num)
{
uint64_t r;