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authorClaudio Fontana <cfontana@suse.de>2020-07-07 11:18:49 +0200
committerPaolo Bonzini <pbonzini@redhat.com>2020-10-05 16:41:22 +0200
commite92558e4bf8059ce4f0b310afe218802b72766bc (patch)
treeb73d3b6f5bdc98686d3cc70b31d48472fef18121 /softmmu
parent57038a92bb06111fbee57f56c0231359573e805d (diff)
cpus: extract out hax-specific code to target/i386/
register a "CpusAccel" interface for HAX as well. Signed-off-by: Claudio Fontana <cfontana@suse.de> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'softmmu')
-rw-r--r--softmmu/cpus.c80
1 files changed, 1 insertions, 79 deletions
diff --git a/softmmu/cpus.c b/softmmu/cpus.c
index 9fa73735a2..900fff827a 100644
--- a/softmmu/cpus.c
+++ b/softmmu/cpus.c
@@ -33,7 +33,6 @@
#include "exec/gdbstub.h"
#include "sysemu/hw_accel.h"
#include "sysemu/kvm.h"
-#include "sysemu/hax.h"
#include "sysemu/hvf.h"
#include "sysemu/whpx.h"
#include "exec/exec-all.h"
@@ -179,9 +178,6 @@ void cpu_synchronize_state(CPUState *cpu)
if (cpus_accel && cpus_accel->synchronize_state) {
cpus_accel->synchronize_state(cpu);
}
- if (hax_enabled()) {
- hax_cpu_synchronize_state(cpu);
- }
if (whpx_enabled()) {
whpx_cpu_synchronize_state(cpu);
}
@@ -192,9 +188,6 @@ void cpu_synchronize_post_reset(CPUState *cpu)
if (cpus_accel && cpus_accel->synchronize_post_reset) {
cpus_accel->synchronize_post_reset(cpu);
}
- if (hax_enabled()) {
- hax_cpu_synchronize_post_reset(cpu);
- }
if (whpx_enabled()) {
whpx_cpu_synchronize_post_reset(cpu);
}
@@ -205,9 +198,6 @@ void cpu_synchronize_post_init(CPUState *cpu)
if (cpus_accel && cpus_accel->synchronize_post_init) {
cpus_accel->synchronize_post_init(cpu);
}
- if (hax_enabled()) {
- hax_cpu_synchronize_post_init(cpu);
- }
if (whpx_enabled()) {
whpx_cpu_synchronize_post_init(cpu);
}
@@ -218,9 +208,6 @@ void cpu_synchronize_pre_loadvm(CPUState *cpu)
if (cpus_accel && cpus_accel->synchronize_pre_loadvm) {
cpus_accel->synchronize_pre_loadvm(cpu);
}
- if (hax_enabled()) {
- hax_cpu_synchronize_pre_loadvm(cpu);
- }
if (hvf_enabled()) {
hvf_cpu_synchronize_pre_loadvm(cpu);
}
@@ -416,35 +403,6 @@ void qemu_wait_io_event(CPUState *cpu)
qemu_wait_io_event_common(cpu);
}
-static void *qemu_hax_cpu_thread_fn(void *arg)
-{
- CPUState *cpu = arg;
- int r;
-
- rcu_register_thread();
- qemu_mutex_lock_iothread();
- qemu_thread_get_self(cpu->thread);
-
- cpu->thread_id = qemu_get_thread_id();
- current_cpu = cpu;
- hax_init_vcpu(cpu);
- cpu_thread_signal_created(cpu);
- qemu_guest_random_seed_thread_part2(cpu->random_seed);
-
- do {
- if (cpu_can_run(cpu)) {
- r = hax_smp_cpu_exec(cpu);
- if (r == EXCP_DEBUG) {
- cpu_handle_guest_debug(cpu);
- }
- }
-
- qemu_wait_io_event(cpu);
- } while (!cpu->unplug || cpu_can_run(cpu));
- rcu_unregister_thread();
- return NULL;
-}
-
/* The HVF-specific vCPU thread function. This one should only run when the host
* CPU supports the VMX "unrestricted guest" feature. */
static void *qemu_hvf_cpu_thread_fn(void *arg)
@@ -529,12 +487,6 @@ static void *qemu_whpx_cpu_thread_fn(void *arg)
return NULL;
}
-#ifdef _WIN32
-static void CALLBACK dummy_apc_func(ULONG_PTR unused)
-{
-}
-#endif
-
void cpus_kick_thread(CPUState *cpu)
{
#ifndef _WIN32
@@ -553,10 +505,6 @@ void cpus_kick_thread(CPUState *cpu)
if (!qemu_cpu_is_self(cpu)) {
if (whpx_enabled()) {
whpx_vcpu_kick(cpu);
- } else if (!QueueUserAPC(dummy_apc_func, cpu->hThread, 0)) {
- fprintf(stderr, "%s: QueueUserAPC failed with error %lu\n",
- __func__, GetLastError());
- exit(1);
}
}
#endif
@@ -567,14 +515,7 @@ void qemu_cpu_kick(CPUState *cpu)
qemu_cond_broadcast(cpu->halt_cond);
if (cpus_accel && cpus_accel->kick_vcpu_thread) {
cpus_accel->kick_vcpu_thread(cpu);
- } else {
- if (hax_enabled()) {
- /*
- * FIXME: race condition with the exit_request check in
- * hax_vcpu_hax_exec
- */
- cpu->exit_request = 1;
- }
+ } else { /* default */
cpus_kick_thread(cpu);
}
}
@@ -722,23 +663,6 @@ void cpu_remove_sync(CPUState *cpu)
qemu_mutex_lock_iothread();
}
-static void qemu_hax_start_vcpu(CPUState *cpu)
-{
- char thread_name[VCPU_THREAD_NAME_SIZE];
-
- cpu->thread = g_malloc0(sizeof(QemuThread));
- cpu->halt_cond = g_malloc0(sizeof(QemuCond));
- qemu_cond_init(cpu->halt_cond);
-
- snprintf(thread_name, VCPU_THREAD_NAME_SIZE, "CPU %d/HAX",
- cpu->cpu_index);
- qemu_thread_create(cpu->thread, thread_name, qemu_hax_cpu_thread_fn,
- cpu, QEMU_THREAD_JOINABLE);
-#ifdef _WIN32
- cpu->hThread = qemu_thread_get_handle(cpu->thread);
-#endif
-}
-
static void qemu_hvf_start_vcpu(CPUState *cpu)
{
char thread_name[VCPU_THREAD_NAME_SIZE];
@@ -800,8 +724,6 @@ void qemu_init_vcpu(CPUState *cpu)
if (cpus_accel) {
/* accelerator already implements the CpusAccel interface */
cpus_accel->create_vcpu_thread(cpu);
- } else if (hax_enabled()) {
- qemu_hax_start_vcpu(cpu);
} else if (hvf_enabled()) {
qemu_hvf_start_vcpu(cpu);
} else if (whpx_enabled()) {