[Qemu-devel] [PATCH] i386: Fix signedness of hyperv_spinlock_attempts

[Eduardo Habkost]

The current default value for hv-spinlocks is 0xFFFFFFFF (meaning
"never retry").  However, the value is stored as a signed
integer, making the getter of the hv-spinlocks QOM property
return -1 instead of 0xFFFFFFFF.

Fix this by changing the type of X86CPU::hyperv_spinlock_attempts
to uint32_t.  This has no visible effect to guest operating
systems, affecting just the behavior of the QOM getter.

Signed-off-by: Eduardo Habkost <address@hidden>
---
 target/i386/cpu.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/target/i386/cpu.h b/target/i386/cpu.h
index 0732e059ec..8158d0de73 100644
--- a/target/i386/cpu.h
+++ b/target/i386/cpu.h
@@ -1372,7 +1372,7 @@ struct X86CPU {
 
     bool hyperv_vapic;
     bool hyperv_relaxed_timing;
-    int hyperv_spinlock_attempts;
+    uint32_t hyperv_spinlock_attempts;
     char *hyperv_vendor_id;
     bool hyperv_time;
     bool hyperv_crash;
-- 
2.18.0.rc1.1.g3f1ff2140