xen: remove xen_vcpu_init

No need for xen_vcpu_init anymore:

- the RTC emulator doesn't have any periodic timers continuously running
even in absence of guest interactions anymore;

- qemu_dummy_start_vcpu takes care of disabling TCG for us, so we don't
need to do it manually here.

Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Reviewed-by: Andreas Färber <afaerber@suse.de>

3 files changed, 0 insertions, 25 deletions

diff --git a/hw/i386/pc_piix.c b/hw/i386/pc_piix.c
index 06416ce74f..742544e734 100644
--- a/hw/i386/pc_piix.c
+++ b/hw/i386/pc_piix.c
@@ -324,7 +324,6 @@ static void pc_xen_hvm_init(QEMUMachineInitArgs *args)
         hw_error("xen hardware virtual machine initialisation failed");
     }
     pc_init_pci_no_kvmclock(args);
-    xen_vcpu_init();
 }
 #endif
 
diff --git a/include/hw/xen/xen.h b/include/hw/xen/xen.h
index b42b0fdb48..6d42dd1bd1 100644
--- a/include/hw/xen/xen.h
+++ b/include/hw/xen/xen.h
@@ -38,7 +38,6 @@ qemu_irq *xen_interrupt_controller_init(void);
 
 int xen_init(void);
 int xen_hvm_init(void);
-void xen_vcpu_init(void);
 void xenstore_store_pv_console_info(int i, struct CharDriverState *chr);
 
 #if defined(NEED_CPU_H) && !defined(CONFIG_USER_ONLY)
diff --git a/xen-all.c b/xen-all.c
index 5ca0c26c63..bc105f1627 100644
--- a/xen-all.c
+++ b/xen-all.c
@@ -574,29 +574,6 @@ void qmp_xen_set_global_dirty_log(bool enable, Error **errp)
     }
 }
 
-/* VCPU Operations, MMIO, IO ring ... */
-
-static void xen_reset_vcpu(void *opaque)
-{
-    CPUState *cpu = opaque;
-
-    cpu->halted = 1;
-}
-
-void xen_vcpu_init(void)
-{
-    if (first_cpu != NULL) {
-        CPUState *cpu = ENV_GET_CPU(first_cpu);
-
-        qemu_register_reset(xen_reset_vcpu, cpu);
-        xen_reset_vcpu(cpu);
-    }
-    /* if rtc_clock is left to default (host_clock), disable it */
-    if (rtc_clock == host_clock) {
-        qemu_clock_enable(rtc_clock, false);
-    }
-}
-
 /* get the ioreq packets from share mem */
 static ioreq_t *cpu_get_ioreq_from_shared_memory(XenIOState *state, int vcpu)
 {