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[PATCH RFC 08/22] i386: invert hyperv_spinlock_attempts setting logic wi


From: Vitaly Kuznetsov
Subject: [PATCH RFC 08/22] i386: invert hyperv_spinlock_attempts setting logic with hv_passthrough
Date: Fri, 4 Sep 2020 16:54:17 +0200

There is no need to have this special case: like all other Hyper-V
enlightenments we can just use kernel's supplied value in hv_passthrough
mode.

Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com>
---
 target/i386/kvm.c | 6 +-----
 1 file changed, 1 insertion(+), 5 deletions(-)

diff --git a/target/i386/kvm.c b/target/i386/kvm.c
index 1cb5592d4f7d..96ac719adca1 100644
--- a/target/i386/kvm.c
+++ b/target/i386/kvm.c
@@ -1265,11 +1265,7 @@ static int hyperv_handle_properties(CPUState *cs,
         c = cpuid_find_entry(cpuid, HV_CPUID_ENLIGHTMENT_INFO, 0);
         if (c) {
             env->features[FEAT_HV_RECOMM_EAX] = c->eax;
-
-            /* hv-spinlocks may have been overriden */
-            if (cpu->hyperv_spinlock_attempts != HYPERV_SPINLOCK_NEVER_RETRY) {
-                c->ebx = cpu->hyperv_spinlock_attempts;
-            }
+            cpu->hyperv_spinlock_attempts = c->ebx;
         }
         c = cpuid_find_entry(cpuid, HV_CPUID_NESTED_FEATURES, 0);
         if (c) {
-- 
2.25.4




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