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qemu/accel/tcg
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David Hildenbrand d84be02d69 cpu-exec: fix missed CPU kick during interrupt injection 
The conditional memory barrier not only looks strange but actually is
wrong.

On s390x, I can reproduce interrupts via cpu_interrupt() not leading to
a proper kick out of emulation every now and then. cpu_interrupt() is
especially used for inter CPU communication via SIGP (esp. external
calls and emergency interrupts).

With this patch, I was not able to reproduce. (esp. no stalls or hangs
in the guest).

My setup is s390x MTTCG with 16 VCPUs on 8 CPU host, running make -j16.

Signed-off-by: David Hildenbrand <david@redhat.com>
Message-Id: <20171129191319.11483-1-david@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2017-12-21 09:22:44 +01:00
..
atomic_template.h accel/tcg: Handle atomic accesses to notdirty memory correctly 2017-11-21 12:09:25 +00:00
cpu-exec-common.c accel/tcg/cpu-exec-common.c: Remove unnecessary include of memory-internal.h 2017-12-18 17:07:02 +03:00
cpu-exec.c cpu-exec: fix missed CPU kick during interrupt injection 2017-12-21 09:22:44 +01:00
cputlb.c accel/tcg: Handle atomic accesses to notdirty memory correctly 2017-11-21 12:09:25 +00:00
Makefile.objs accel/tcg: move tcg-runtime to accel/tcg/ 2017-09-17 06:52:19 -07:00
softmmu_template.h accel/tcg: allow to invalidate a write TLB entry immediately 2017-10-20 13:32:10 +02:00
tcg-all.c tcg: make tcg_allowed global 2017-07-04 16:01:16 +02:00
tcg-runtime.c tcg: define tcg_init_ctx and make tcg_ctx a pointer 2017-10-24 13:53:42 -07:00
tcg-runtime.h tcg: remove addr argument from lookup_tb_ptr 2017-10-10 07:37:10 -07:00
trace-events trace-events: fix code style: print 0x before hex numbers 2017-08-01 12:13:07 +01:00
translate-all.c misc: remove duplicated includes 2017-12-18 17:07:02 +03:00
translate-all.h tcg: move tcg backend files into accel/tcg/ 2017-06-15 11:04:06 +02:00
translator.c tcg: convert tb->cflags reads to tb_cflags(tb) 2017-10-24 13:53:41 -07:00
user-exec-stub.c accel/tcg: move user-exec to accel/tcg/ 2017-09-17 06:52:19 -07:00
user-exec.c accel/tcg: Handle atomic accesses to notdirty memory correctly 2017-11-21 12:09:25 +00:00