From: Heiher <r@hev.cc>
Date: Wed, 23 Jan 2019 07:34:02 +0000 (+0800)
Subject: i386: hvf: Fix smp boot hangs
X-Git-Tag: v4.0.0-rc0~114^2~4
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=26dc4a5bf96bb0ee19a0e446fead1546d5b07dac;p=thirdparty%2Fqemu.git

i386: hvf: Fix smp boot hangs

The machine that with hvf accelerator and smp sometimes boot hangs
because all processors are executing instructions at startup,
including early I/O emulations. We should just allow the bootstrap
processor to initialize the machine and then to wake up slave
processors by interrupt.

Signed-off-by: Heiher <r@hev.cc>
Message-Id: <20190123073402.28465-1-r@hev.cc>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
---

diff --git a/target/i386/hvf/hvf.c b/target/i386/hvf/hvf.c
index 689b585027f..42f94473033 100644
--- a/target/i386/hvf/hvf.c
+++ b/target/i386/hvf/hvf.c
@@ -499,7 +499,6 @@ void hvf_reset_vcpu(CPUState *cpu) {
     }
 
     hv_vm_sync_tsc(0);
-    cpu->halted = 0;
     hv_vcpu_invalidate_tlb(cpu->hvf_fd);
     hv_vcpu_flush(cpu->hvf_fd);
 }
@@ -582,8 +581,6 @@ int hvf_init_vcpu(CPUState *cpu)
 
     wvmcs(cpu->hvf_fd, VMCS_TPR_THRESHOLD, 0);
 
-    hvf_reset_vcpu(cpu);
-
     x86cpu = X86_CPU(cpu);
     x86cpu->env.xsave_buf = qemu_memalign(4096, 4096);
 
@@ -659,8 +656,6 @@ int hvf_vcpu_exec(CPUState *cpu)
     int ret = 0;
     uint64_t rip = 0;
 
-    cpu->halted = 0;
-
     if (hvf_process_events(cpu)) {
         return EXCP_HLT;
     }