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[Qemu-devel] [PATCH 07/17] s390x: Enable s390x-softmmu target
From: |
Alexander Graf |
Subject: |
[Qemu-devel] [PATCH 07/17] s390x: Enable s390x-softmmu target |
Date: |
Fri, 15 Apr 2011 17:32:48 +0200 |
This patch adds some code paths for running s390x guest OSs without the
need for KVM.
Signed-off-by: Alexander Graf <address@hidden>
---
v3 -> v4:
- declare non-working when EXT is masked
- remove obsolete cpu_halted
---
cpu-exec.c | 8 ++++++++
target-s390x/exec.h | 11 ++++++++++-
target-s390x/helper.c | 4 ++++
3 files changed, 22 insertions(+), 1 deletions(-)
diff --git a/cpu-exec.c b/cpu-exec.c
index 5d6c9a8..d57afef 100644
--- a/cpu-exec.c
+++ b/cpu-exec.c
@@ -346,6 +346,8 @@ int cpu_exec(CPUState *env1)
do_interrupt(env);
#elif defined(TARGET_M68K)
do_interrupt(0);
+#elif defined(TARGET_S390X)
+ do_interrupt(env);
#endif
env->exception_index = -1;
#endif
@@ -560,6 +562,12 @@ int cpu_exec(CPUState *env1)
do_interrupt(1);
next_tb = 0;
}
+#elif defined(TARGET_S390X) && !defined(CONFIG_USER_ONLY)
+ if ((interrupt_request & CPU_INTERRUPT_HARD) &&
+ (env->psw.mask & PSW_MASK_EXT)) {
+ do_interrupt(env);
+ next_tb = 0;
+ }
#endif
/* Don't use the cached interupt_request value,
do_interrupt may have updated the EXITTB flag. */
diff --git a/target-s390x/exec.h b/target-s390x/exec.h
index f7893f3..7a87fff 100644
--- a/target-s390x/exec.h
+++ b/target-s390x/exec.h
@@ -31,7 +31,16 @@ register struct CPUS390XState *env asm(AREG0);
static inline int cpu_has_work(CPUState *env)
{
- return env->interrupt_request & CPU_INTERRUPT_HARD; // guess
+ return ((env->interrupt_request & CPU_INTERRUPT_HARD) &&
+ (env->psw.mask & PSW_MASK_EXT));
+}
+
+static inline void regs_to_env(void)
+{
+}
+
+static inline void env_to_regs(void)
+{
}
static inline void cpu_pc_from_tb(CPUState *env, TranslationBlock* tb)
diff --git a/target-s390x/helper.c b/target-s390x/helper.c
index 4a5297b..629dfd9 100644
--- a/target-s390x/helper.c
+++ b/target-s390x/helper.c
@@ -82,3 +82,7 @@ int cpu_s390x_handle_mmu_fault (CPUState *env, target_ulong
address, int rw,
return 0;
}
#endif /* CONFIG_USER_ONLY */
+
+void do_interrupt (CPUState *env)
+{
+}
--
1.6.0.2
- Re: [Qemu-devel] [PATCH 03/17] linux-user: define a couple of syscalls for non-uid16 targets, (continued)
- [Qemu-devel] [PATCH 05/17] kvm: add kvm stub for arch specific stuff, Alexander Graf, 2011/04/15
- [Qemu-devel] [PATCH 08/17] s390x: Dispatch interrupts to KVM or the real CPU, Alexander Graf, 2011/04/15
- [Qemu-devel] [PATCH 13/17] s390x: Adjust internal kvm code, Alexander Graf, 2011/04/15
- [Qemu-devel] [PATCH 01/17] tcg: extend max tcg opcodes on 32bit, Alexander Graf, 2011/04/15
- [Qemu-devel] [PATCH 06/17] s390x: Prepare cpu.h for emulation, Alexander Graf, 2011/04/15
- [Qemu-devel] [PATCH 07/17] s390x: Enable s390x-softmmu target,
Alexander Graf <=
- [Qemu-devel] [PATCH 10/17] s390x: keep hint on virtio managing size, Alexander Graf, 2011/04/15
- [Qemu-devel] [PATCH 02/17] s390x: s390x-linux-user support, Alexander Graf, 2011/04/15