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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
- [PATCH RFC 03/22] i386: move hyperv_vendor_id initialization to x86_cpu_realizefn(), (continued)
- [PATCH RFC 03/22] i386: move hyperv_vendor_id initialization to x86_cpu_realizefn(), Vitaly Kuznetsov, 2020/09/04
- [PATCH RFC 04/22] i386: move hyperv_interface_id initialization to x86_cpu_realizefn(), Vitaly Kuznetsov, 2020/09/04
- [PATCH RFC 06/22] i386: move hyperv_limits initialization to x86_cpu_realizefn(), Vitaly Kuznetsov, 2020/09/04
- [PATCH RFC 07/22] i386: fill in FEAT_HYPERV_EDX from edx instead of eax, Vitaly Kuznetsov, 2020/09/04
- [PATCH RFC 11/22] i386: add reserved FEAT_HV_NESTED_EBX/ECX/EDX CPUID leaves, Vitaly Kuznetsov, 2020/09/04
- [PATCH RFC 08/22] i386: invert hyperv_spinlock_attempts setting logic with hv_passthrough,
Vitaly Kuznetsov <=
- [PATCH RFC 02/22] i386: drop x86_cpu_get_supported_feature_word() forward declaration, Vitaly Kuznetsov, 2020/09/04
- [PATCH RFC 10/22] i386: add reserved FEAT_HV_RECOMM_ECX/FEAT_HV_RECOMM_EDX CPUID leaves, Vitaly Kuznetsov, 2020/09/04
- [PATCH RFC 05/22] i386: move hyperv_version_id initialization to x86_cpu_realizefn(), Vitaly Kuznetsov, 2020/09/04
- [PATCH RFC 09/22] i386: add reserved FEAT_HYPERV_ECX CPUID leaf, Vitaly Kuznetsov, 2020/09/04
- [PATCH RFC 13/22] i386: split hyperv_handle_properties() into hyperv_expand_features()/hyperv_fill_cpuids(), Vitaly Kuznetsov, 2020/09/04
- [PATCH RFC 12/22] i386: always fill Hyper-V CPUID feature leaves from X86CPU data, Vitaly Kuznetsov, 2020/09/04