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[Qemu-devel] [PULL 12/46] target/s390x: interpret PSW_MASK_WAIT only for
From: |
Cornelia Huck |
Subject: |
[Qemu-devel] [PULL 12/46] target/s390x: interpret PSW_MASK_WAIT only for TCG |
Date: |
Fri, 20 Oct 2017 13:53:44 +0200 |
From: David Hildenbrand <address@hidden>
KVM handles the wait PSW itself and triggers a WAIT ICPT in case it
really wants to sleep (disabled wait).
This will later allow us to change the order of loading a restart
interrupt and setting a CPU to OPERATING on SIGP RESTART without
changing KVM behavior.
Signed-off-by: David Hildenbrand <address@hidden>
Message-Id: <address@hidden>
Reviewed-by: Richard Henderson <address@hidden>
Signed-off-by: Cornelia Huck <address@hidden>
---
target/s390x/helper.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/target/s390x/helper.c b/target/s390x/helper.c
index 2d7df83c59..baa18777f1 100644
--- a/target/s390x/helper.c
+++ b/target/s390x/helper.c
@@ -147,7 +147,8 @@ void load_psw(CPUS390XState *env, uint64_t mask, uint64_t
addr)
s390_cpu_recompute_watchpoints(CPU(s390_env_get_cpu(env)));
}
- if (mask & PSW_MASK_WAIT) {
+ /* KVM will handle all WAITs and trigger a WAIT exit on disabled_wait */
+ if (tcg_enabled() && (mask & PSW_MASK_WAIT)) {
s390_handle_wait(s390_env_get_cpu(env));
}
}
--
2.13.6
- [Qemu-devel] [PULL 03/46] s390x/tcg: turn INTERRUPT_EXT into a mask, (continued)
- [Qemu-devel] [PULL 03/46] s390x/tcg: turn INTERRUPT_EXT into a mask, Cornelia Huck, 2017/10/20
- [Qemu-devel] [PULL 02/46] s390x/css: be more consistent if broken beyond repair, Cornelia Huck, 2017/10/20
- [Qemu-devel] [PULL 05/46] s390x/tcg: injection of emergency signals and external calls, Cornelia Huck, 2017/10/20
- [Qemu-devel] [PULL 04/46] s390x/tcg: cleanup service interrupt injection, Cornelia Huck, 2017/10/20
- [Qemu-devel] [PULL 06/46] s390x/tcg: rework checking for deliverable interrupts, Cornelia Huck, 2017/10/20
- [Qemu-devel] [PULL 07/46] s390x/tcg: take care of external interrupt subclasses, Cornelia Huck, 2017/10/20
- [Qemu-devel] [PULL 08/46] s390x/tcg: STOPPED cpus can never wake up, Cornelia Huck, 2017/10/20
- [Qemu-devel] [PULL 09/46] s390x/tcg: a CPU cannot switch state due to an interrupt, Cornelia Huck, 2017/10/20
- [Qemu-devel] [PULL 11/46] s390x/tcg: handle WAIT PSWs during interrupt injection, Cornelia Huck, 2017/10/20
- [Qemu-devel] [PULL 10/46] target/s390x: factor out handling of WAIT PSW into s390_handle_wait(), Cornelia Huck, 2017/10/20
- [Qemu-devel] [PULL 12/46] target/s390x: interpret PSW_MASK_WAIT only for TCG,
Cornelia Huck <=
- [Qemu-devel] [PULL 13/46] s390x/kvm: pass ipb directly into handle_sigp(), Cornelia Huck, 2017/10/20
- [Qemu-devel] [PULL 14/46] s390x/kvm: generalize SIGP stop and restart interrupt injection, Cornelia Huck, 2017/10/20
- [Qemu-devel] [PULL 15/46] s390x/kvm: factor out storing of CPU status, Cornelia Huck, 2017/10/20
- [Qemu-devel] [PULL 17/46] s390x/kvm: drop two debug prints, Cornelia Huck, 2017/10/20
- [Qemu-devel] [PULL 16/46] s390x/kvm: factor out storing of adtl CPU status, Cornelia Huck, 2017/10/20
- [Qemu-devel] [PULL 19/46] s390x/kvm: factor out actual handling of STOP interrupts, Cornelia Huck, 2017/10/20
- [Qemu-devel] [PULL 20/46] s390x/tcg: implement SIGP SENSE RUNNING STATUS, Cornelia Huck, 2017/10/20
- [Qemu-devel] [PULL 18/46] s390x/kvm: factor out SIGP code into sigp.c, Cornelia Huck, 2017/10/20
- [Qemu-devel] [PULL 21/46] s390x/tcg: implement SIGP SENSE, Cornelia Huck, 2017/10/20
- [Qemu-devel] [PULL 23/46] s390x/tcg: implement SIGP EMERGENCY SIGNAL, Cornelia Huck, 2017/10/20