Patchwork [6/6] x86: Extend validity of bsp_to_cpu

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Submitter Marcelo Tosatti
Date March 4, 2010, 3:05 p.m.
Message ID <6cb2996cef5e273ef370e690e84b5e1403f5c391.1267715116.git.mtosatti@redhat.com>
Download mbox | patch
Permalink /patch/46913/
State New
Headers show

Comments

Marcelo Tosatti - March 4, 2010, 3:05 p.m.
From: Jan Kiszka <jan.kiszka@siemens.com>

As we hard-wire the BSP to CPU 0 anyway and cpuid_apic_id equals
cpu_index, bsp_to_cpu can also be based on the latter directly. This
will help an early user of it: KVM while initializing mp_state.

Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
---
 hw/pc.c |    3 ++-
 1 files changed, 2 insertions(+), 1 deletions(-)

Patch

diff --git a/hw/pc.c b/hw/pc.c
index bdc297f..e50a488 100644
--- a/hw/pc.c
+++ b/hw/pc.c
@@ -760,7 +760,8 @@  static void pc_init_ne2k_isa(NICInfo *nd)
 
 int cpu_is_bsp(CPUState *env)
 {
-    return env->cpuid_apic_id == 0;
+    /* We hard-wire the BSP to the first CPU. */
+    return env->cpu_index == 0;
 }
 
 static CPUState *pc_new_cpu(const char *cpu_model)