File 0122-s390x-diag-pass-the-retaddr-into-ha.patch of Package qemu.20395

From: David Hildenbrand <david@redhat.com>
Date: Thu, 30 Nov 2017 17:27:34 +0100
Subject: s390x/diag: pass the retaddr into handle_diag_308()

Needed to later drop potential_page_fault() from the diag TCG translate
function.

Convert program_interrupt() to s390_program_interrupt() directly, making
use of the passed address.

Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: David Hildenbrand <david@redhat.com>
Message-Id: <20171130162744.25442-7-david@redhat.com>
Signed-off-by: Cornelia Huck <cohuck@redhat.com>
(cherry picked from commit 1b98fb99d39732231a247acb04823b1ddb5570a1)
[LY: BSC#1123179]
Signed-off-by: Liang Yan <lyan@suse.com>
---
 target/s390x/diag.c        | 14 +++++++-------
 target/s390x/internal.h    |  3 ++-
 target/s390x/kvm.c         |  2 +-
 target/s390x/misc_helper.c |  2 +-
 4 files changed, 11 insertions(+), 10 deletions(-)

diff --git a/target/s390x/diag.c b/target/s390x/diag.c
index dbbb9e886fbe079213bfef049b00..a755837ad545b72a991bccbcf34c 100644
--- a/target/s390x/diag.c
+++ b/target/s390x/diag.c
@@ -99,19 +99,19 @@ int handle_diag_288(CPUS390XState *env, uint64_t r1, uint64_t r3)
 #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)
+void handle_diag_308(CPUS390XState *env, uint64_t r1, uint64_t r3, uintptr_t ra)
 {
     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);
+        s390_program_interrupt(env, PGM_PRIVILEGED, ILEN_AUTO, ra);
         return;
     }
 
     if ((subcode & ~0x0ffffULL) || (subcode > 6)) {
-        program_interrupt(env, PGM_SPECIFICATION, ILEN_AUTO);
+        s390_program_interrupt(env, PGM_SPECIFICATION, ILEN_AUTO, ra);
         return;
     }
 
@@ -136,12 +136,12 @@ void handle_diag_308(CPUS390XState *env, uint64_t r1, uint64_t r3)
         break;
     case 5:
         if ((r1 & 1) || (addr & 0x0fffULL)) {
-            program_interrupt(env, PGM_SPECIFICATION, ILEN_AUTO);
+            s390_program_interrupt(env, PGM_SPECIFICATION, ILEN_AUTO, ra);
             return;
         }
         if (!address_space_access_valid(&address_space_memory, addr,
                                         sizeof(IplParameterBlock), false)) {
-            program_interrupt(env, PGM_ADDRESSING, ILEN_AUTO);
+            s390_program_interrupt(env, PGM_ADDRESSING, ILEN_AUTO, ra);
             return;
         }
         iplb = g_new0(IplParameterBlock, 1);
@@ -165,12 +165,12 @@ out:
         return;
     case 6:
         if ((r1 & 1) || (addr & 0x0fffULL)) {
-            program_interrupt(env, PGM_SPECIFICATION, ILEN_AUTO);
+            s390_program_interrupt(env, PGM_SPECIFICATION, ILEN_AUTO, ra);
             return;
         }
         if (!address_space_access_valid(&address_space_memory, addr,
                                         sizeof(IplParameterBlock), true)) {
-            program_interrupt(env, PGM_ADDRESSING, ILEN_AUTO);
+            s390_program_interrupt(env, PGM_ADDRESSING, ILEN_AUTO, ra);
             return;
         }
         iplb = s390_ipl_get_iplb();
diff --git a/target/s390x/internal.h b/target/s390x/internal.h
index 3aff54ada46553949c28ddaa27c5..c3636ccd651f9f341083f37af5f3 100644
--- a/target/s390x/internal.h
+++ b/target/s390x/internal.h
@@ -411,7 +411,8 @@ int mmu_translate_real(CPUS390XState *env, target_ulong raddr, int rw,
 void QEMU_NORETURN runtime_exception(CPUS390XState *env, int excp,
                                      uintptr_t retaddr);
 int handle_diag_288(CPUS390XState *env, uint64_t r1, uint64_t r3);
-void handle_diag_308(CPUS390XState *env, uint64_t r1, uint64_t r3);
+void handle_diag_308(CPUS390XState *env, uint64_t r1, uint64_t r3,
+                     uintptr_t ra);
 
 
 /* translate.c */
diff --git a/target/s390x/kvm.c b/target/s390x/kvm.c
index b50613c07e58be7d1f6c338d6c9b..6fb7edb5068458e195014fc93460 100644
--- a/target/s390x/kvm.c
+++ b/target/s390x/kvm.c
@@ -1471,7 +1471,7 @@ static void kvm_handle_diag_308(S390CPU *cpu, struct kvm_run *run)
     cpu_synchronize_state(CPU(cpu));
     r1 = (run->s390_sieic.ipa & 0x00f0) >> 4;
     r3 = run->s390_sieic.ipa & 0x000f;
-    handle_diag_308(&cpu->env, r1, r3);
+    handle_diag_308(&cpu->env, r1, r3, 0);
 }
 
 static int handle_sw_breakpoint(S390CPU *cpu, struct kvm_run *run)
diff --git a/target/s390x/misc_helper.c b/target/s390x/misc_helper.c
index 1ccbafbb7dc52361d3ef66cf3b82..f35d45f6195bac90e488a0d0f7b0 100644
--- a/target/s390x/misc_helper.c
+++ b/target/s390x/misc_helper.c
@@ -104,7 +104,7 @@ void HELPER(diag)(CPUS390XState *env, uint32_t r1, uint32_t r3, uint32_t num)
     case 0x308:
         /* ipl */
         qemu_mutex_lock_iothread();
-        handle_diag_308(env, r1, r3);
+        handle_diag_308(env, r1, r3, GETPC());
         qemu_mutex_unlock_iothread();
         r = 0;
         break;