KVM: remove kvm_arch_on_sigbus

Build it on kvm_arch_on_sigbus_vcpu instead.  They do the same
for "action optional" SIGBUSes, and the main thread should never get
"action required" SIGBUSes because it blocks the signal.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

1 files changed, 5 insertions, 35 deletions

diff --git a/target/i386/kvm.c b/target/i386/kvm.c
index f49a786c98..2adf992c84 100644
--- a/target/i386/kvm.c
+++ b/target/i386/kvm.c
@@ -462,14 +462,13 @@ int kvm_arch_on_sigbus_vcpu(CPUState *c, int code, void *addr)
     ram_addr_t ram_addr;
     hwaddr paddr;
 
+    /* If we get an action required MCE, it has been injected by KVM
+     * while the VM was running.  An action optional MCE instead should
+     * be coming from the main thread, which qemu_init_sigbus identifies
+     * as the "early kill" thread.
+     */
     assert(code == BUS_MCEERR_AR || code == BUS_MCEERR_AO);
 
-    /* Because the MCE happened while running the VCPU, KVM could have
-     * injected action required MCEs too.  Action optional MCEs should
-     * be delivered to the main thread, which qemu_init_sigbus identifies
-     * as the "early kill" thread, but if we get one for whatever reason
-     * we just handle it just like the main thread would.
-     */
     if ((env->mcg_cap & MCG_SER_P) && addr) {
         ram_addr = qemu_ram_addr_from_host(addr);
         if (ram_addr != RAM_ADDR_INVALID &&
@@ -491,35 +490,6 @@ int kvm_arch_on_sigbus_vcpu(CPUState *c, int code, void *addr)
     return 0;
 }
 
-int kvm_arch_on_sigbus(int code, void *addr)
-{
-    X86CPU *cpu = X86_CPU(first_cpu);
-
-    assert(code == BUS_MCEERR_AR || code == BUS_MCEERR_AO);
-
-    if (code == BUS_MCEERR_AR) {
-        hardware_memory_error();
-    }
-
-    /* Hope we are lucky for AO MCE */
-    if ((cpu->env.mcg_cap & MCG_SER_P) && addr) {
-        ram_addr_t ram_addr;
-        hwaddr paddr;
-
-        ram_addr = qemu_ram_addr_from_host(addr);
-        if (ram_addr != RAM_ADDR_INVALID &&
-            kvm_physical_memory_addr_from_host(first_cpu->kvm_state,
-                                               addr, &paddr)) {
-            kvm_hwpoison_page_add(ram_addr);
-            kvm_mce_inject(X86_CPU(first_cpu), paddr, code);
-        }
-
-        fprintf(stderr, "Hardware memory error for memory used by "
-                "QEMU itself instead of guest system!: %p\n", addr);
-    }
-    return 0;
-}
-
 static int kvm_inject_mce_oldstyle(X86CPU *cpu)
 {
     CPUX86State *env = &cpu->env;