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[Qemu-devel] [PATCH v2 21/30] s390x/tcg: implement SIGP EXTERNAL CALL
From: |
David Hildenbrand |
Subject: |
[Qemu-devel] [PATCH v2 21/30] s390x/tcg: implement SIGP EXTERNAL CALL |
Date: |
Thu, 28 Sep 2017 22:36:59 +0200 |
As preparation for TCG.
Signed-off-by: David Hildenbrand <address@hidden>
---
target/s390x/sigp.c | 25 +++++++++++++++++++++++--
1 file changed, 23 insertions(+), 2 deletions(-)
diff --git a/target/s390x/sigp.c b/target/s390x/sigp.c
index 063a34ccc7..080bce3fba 100644
--- a/target/s390x/sigp.c
+++ b/target/s390x/sigp.c
@@ -58,6 +58,24 @@ static void sigp_sense(S390CPU *dst_cpu, SigpInfo *si)
}
}
+static void sigp_external_call(S390CPU *src_cpu, S390CPU *dst_cpu, SigpInfo
*si)
+{
+ int ret;
+
+ if (!tcg_enabled()) {
+ /* handled in KVM */
+ set_sigp_status(si, SIGP_STAT_INVALID_ORDER);
+ return;
+ }
+
+ ret = cpu_inject_external_call(dst_cpu, src_cpu->env.core_id);
+ if (!ret) {
+ si->cc = SIGP_CC_ORDER_CODE_ACCEPTED;
+ } else {
+ set_sigp_status(si, SIGP_STAT_EXT_CALL_PENDING);
+ }
+}
+
static void sigp_start(CPUState *cs, run_on_cpu_data arg)
{
S390CPU *cpu = S390_CPU(cs);
@@ -282,7 +300,7 @@ static void sigp_sense_running(S390CPU *dst_cpu, SigpInfo
*si)
}
}
-static int handle_sigp_single_dst(S390CPU *dst_cpu, uint8_t order,
+static int handle_sigp_single_dst(S390CPU *cpu, S390CPU *dst_cpu, uint8_t
order,
uint64_t param, uint64_t *status_reg)
{
SigpInfo si = {
@@ -306,6 +324,9 @@ static int handle_sigp_single_dst(S390CPU *dst_cpu, uint8_t
order,
case SIGP_SENSE:
sigp_sense(dst_cpu, &si);
break;
+ case SIGP_EXTERNAL_CALL:
+ sigp_external_call(cpu, dst_cpu, &si);
+ break;
case SIGP_START:
run_on_cpu(CPU(dst_cpu), sigp_start, RUN_ON_CPU_HOST_PTR(&si));
break;
@@ -389,7 +410,7 @@ int handle_sigp(CPUS390XState *env, uint8_t order, uint64_t
r1, uint64_t r3)
default:
/* all other sigp orders target a single vcpu */
dst_cpu = s390_cpu_addr2state(env->regs[r3]);
- ret = handle_sigp_single_dst(dst_cpu, order, param, status_reg);
+ ret = handle_sigp_single_dst(cpu, dst_cpu, order, param, status_reg);
}
qemu_mutex_unlock(&qemu_sigp_mutex);
--
2.13.5
- [Qemu-devel] [PATCH v2 11/30] s390x/kvm: pass ipb directly into handle_sigp(), (continued)
- [Qemu-devel] [PATCH v2 11/30] s390x/kvm: pass ipb directly into handle_sigp(), David Hildenbrand, 2017/09/28
- [Qemu-devel] [PATCH v2 12/30] s390x/kvm: generalize SIGP stop and restart interrupt injection, David Hildenbrand, 2017/09/28
- [Qemu-devel] [PATCH v2 13/30] s390x/kvm: factor out storing of CPU status, David Hildenbrand, 2017/09/28
- [Qemu-devel] [PATCH v2 14/30] s390x/kvm: factor out storing of adtl CPU status, David Hildenbrand, 2017/09/28
- [Qemu-devel] [PATCH v2 15/30] s390x/kvm: drop two debug prints, David Hildenbrand, 2017/09/28
- [Qemu-devel] [PATCH v2 16/30] s390x/kvm: factor out SIGP code into sigp.c, David Hildenbrand, 2017/09/28
- [Qemu-devel] [PATCH v2 17/30] MAINTAINERS: use s390 KVM maintainers for target/s390x/sigp.c, David Hildenbrand, 2017/09/28
- [Qemu-devel] [PATCH v2 18/30] s390x/kvm: factor out actual handling of STOP interrupts, David Hildenbrand, 2017/09/28
- [Qemu-devel] [PATCH v2 20/30] s390x/tcg: implement SIGP SENSE, David Hildenbrand, 2017/09/28
- [Qemu-devel] [PATCH v2 19/30] s390x/tcg: implement SIGP SENSE RUNNING STATUS, David Hildenbrand, 2017/09/28
- [Qemu-devel] [PATCH v2 21/30] s390x/tcg: implement SIGP EXTERNAL CALL,
David Hildenbrand <=
- [Qemu-devel] [PATCH v2 22/30] s390x/tcg: implement SIGP EMERGENCY SIGNAL, David Hildenbrand, 2017/09/28
- [Qemu-devel] [PATCH v2 23/30] s390x/tcg: implement SIGP CONDITIONAL EMERGENCY SIGNAL, David Hildenbrand, 2017/09/28
- [Qemu-devel] [PATCH v2 24/30] s390x/tcg: implement STOP and RESET interrupts for TCG, David Hildenbrand, 2017/09/28
- [Qemu-devel] [PATCH v2 25/30] s390x/tcg: flush the tlb on SIGP SET PREFIX, David Hildenbrand, 2017/09/28
- [Qemu-devel] [PATCH v2 26/30] s390x/tcg: switch to new SIGP handling code, David Hildenbrand, 2017/09/28
- [Qemu-devel] [PATCH v2 27/30] s390x/cpumodel: allow to enable SENSE RUNNING STATUS for qemu, David Hildenbrand, 2017/09/28
- [Qemu-devel] [PATCH v2 28/30] s390x/tcg: unlock NMI, David Hildenbrand, 2017/09/28
- [Qemu-devel] [PATCH v2 29/30] s390x/tcg: refactor stfl(e) to use s390_get_feat_block(), David Hildenbrand, 2017/09/28
- [Qemu-devel] [PATCH v2 30/30] target/s390x: special handling when starting a CPU with WAIT PSW, David Hildenbrand, 2017/09/28