Wrap hv_vcpu_run() calls with cpu_exec_start/end() in order to
have the main loop perform more exclusive sections while all
vCPUs are quiescent.
Signed-off-by: Philippe Mathieu-Daudé <phi...@linaro.org>
---
Could be related to the dubious thread_kicked access and pselect() in
hvf_wait_for_ipi() (commit 219c101fa7f "arm/hvf: Add a WFI handler").
Cc: Peter Collingbourne <p...@google.com>
Cc: Alexander Graf <ag...@csgraf.de>
Cc: Roman Bolshakov <r.bolsha...@yadro.com>
Cc: Sergio Lopez <s...@redhat.com>
---
target/arm/hvf/hvf.c | 2 ++
target/i386/hvf/hvf.c | 2 ++
2 files changed, 4 insertions(+)
diff --git a/target/arm/hvf/hvf.c b/target/arm/hvf/hvf.c
index b77db99079e..377eb4bbc6b 100644
--- a/target/arm/hvf/hvf.c
+++ b/target/arm/hvf/hvf.c
@@ -1927,7 +1927,9 @@ int hvf_vcpu_exec(CPUState *cpu)
flush_cpu_state(cpu);
bql_unlock();
+ cpu_exec_start(cpu);
r = hv_vcpu_run(cpu->accel->fd);
+ cpu_exec_end(cpu);
bql_lock();
switch (r) {
case HV_SUCCESS:
diff --git a/target/i386/hvf/hvf.c b/target/i386/hvf/hvf.c
index 8445cadecec..913ad47f3d8 100644
--- a/target/i386/hvf/hvf.c
+++ b/target/i386/hvf/hvf.c
@@ -749,8 +749,10 @@ int hvf_vcpu_exec(CPUState *cpu)
return EXCP_HLT;
}
+ cpu_exec_start(cpu);
hv_return_t r = hv_vcpu_run_until(cpu->accel->fd, HV_DEADLINE_FOREVER);
assert_hvf_ok(r);
+ cpu_exec_end(cpu);
/* handle VMEXIT */
uint64_t exit_reason = rvmcs(cpu->accel->fd, VMCS_EXIT_REASON);
--
2.51.0
