From 18268b6016930efe76c77ae590e244d42d9671ea Mon Sep 17 00:00:00 2001
From: Paolo Bonzini <pbonzini@redhat.com>
Date: Thu, 9 Feb 2017 09:41:14 +0100
Subject: KVM: move SIG_IPI handling to kvm-all.c

This lets us remove a bunch of CONFIG_LINUX defines.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
---
 cpus.c | 62 +-------------------------------------------------------------
 1 file changed, 1 insertion(+), 61 deletions(-)

(limited to 'cpus.c')

diff --git a/cpus.c b/cpus.c
index 56b1338c87..c857ad2957 100644
--- a/cpus.c
+++ b/cpus.c
@@ -950,69 +950,10 @@ static void qemu_init_sigbus(void)
 
     prctl(PR_MCE_KILL, PR_MCE_KILL_SET, PR_MCE_KILL_EARLY, 0, 0);
 }
-
-static void dummy_signal(int sig)
-{
-}
-
-static void qemu_kvm_init_cpu_signals(CPUState *cpu)
-{
-    int r;
-    sigset_t set;
-    struct sigaction sigact;
-
-    memset(&sigact, 0, sizeof(sigact));
-    sigact.sa_handler = dummy_signal;
-    sigaction(SIG_IPI, &sigact, NULL);
-
-    pthread_sigmask(SIG_BLOCK, NULL, &set);
-    sigdelset(&set, SIGBUS);
-    pthread_sigmask(SIG_SETMASK, &set, NULL);
-    sigdelset(&set, SIG_IPI);
-    r = kvm_set_signal_mask(cpu, &set);
-    if (r) {
-        fprintf(stderr, "kvm_set_signal_mask: %s\n", strerror(-r));
-        exit(1);
-    }
-}
-
-static void qemu_kvm_eat_signals(CPUState *cpu)
-{
-    struct timespec ts = { 0, 0 };
-    siginfo_t siginfo;
-    sigset_t waitset;
-    sigset_t chkset;
-    int r;
-
-    sigemptyset(&waitset);
-    sigaddset(&waitset, SIG_IPI);
-
-    do {
-        r = sigtimedwait(&waitset, &siginfo, &ts);
-        if (r == -1 && !(errno == EAGAIN || errno == EINTR)) {
-            perror("sigtimedwait");
-            exit(1);
-        }
-
-        r = sigpending(&chkset);
-        if (r == -1) {
-            perror("sigpending");
-            exit(1);
-        }
-    } while (sigismember(&chkset, SIG_IPI));
-}
 #else /* !CONFIG_LINUX */
 static void qemu_init_sigbus(void)
 {
 }
-
-static void qemu_kvm_eat_signals(CPUState *cpu)
-{
-}
-
-static void qemu_kvm_init_cpu_signals(CPUState *cpu)
-{
-}
 #endif /* !CONFIG_LINUX */
 
 static QemuMutex qemu_global_mutex;
@@ -1089,7 +1030,6 @@ static void qemu_kvm_wait_io_event(CPUState *cpu)
         qemu_cond_wait(cpu->halt_cond, &qemu_global_mutex);
     }
 
-    qemu_kvm_eat_signals(cpu);
     qemu_wait_io_event_common(cpu);
 }
 
@@ -1112,7 +1052,7 @@ static void *qemu_kvm_cpu_thread_fn(void *arg)
         exit(1);
     }
 
-    qemu_kvm_init_cpu_signals(cpu);
+    kvm_init_cpu_signals(cpu);
 
     /* signal CPU creation */
     cpu->created = true;
-- 
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