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target/i386: Allow elision of kvm_hv_vpindex_settable()

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Call kvm_enabled() before kvm_hv_vpindex_settable()
to let the compiler elide its call.

kvm-stub.c is now empty, remove it.

Suggested-by: Daniel Henrique Barboza <dbarboza@ventanamicro.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-ID: <20230904124325.79040-9-philmd@linaro.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
Philippe Mathieu-Daudé 2023-09-04 14:43:19 +02:00 committed by Paolo Bonzini
parent 9926cf34de
commit ef1cf6890f
3 changed files with 1 additions and 21 deletions
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2
hw/i386/x86.c
View file

@ -421,7 +421,7 @@ void x86_cpu_pre_plug(HotplugHandler *hotplug_dev,
cpu->thread_id = topo_ids.smt_id;
if (hyperv_feat_enabled(cpu, HYPERV_FEAT_VPINDEX) &&
!kvm_hv_vpindex_settable()) {
kvm_enabled() && !kvm_hv_vpindex_settable()) {
error_setg(errp, "kernel doesn't allow setting HyperV VP_INDEX");
return;
}

18
target/i386/kvm/kvm-stub.c
View file

@ -1,18 +0,0 @@
/*
* QEMU KVM x86 specific function stubs
*
* Copyright Linaro Limited 2012
*
* Author: Peter Maydell <peter.maydell@linaro.org>
*
* This work is licensed under the terms of the GNU GPL, version 2 or later.
* See the COPYING file in the top-level directory.
*
*/
#include "qemu/osdep.h"
#include "kvm_i386.h"
bool kvm_hv_vpindex_settable(void)
{
return false;
}

2
target/i386/kvm/meson.build
View file

@ -1,5 +1,3 @@
i386_ss.add(when: 'CONFIG_KVM', if_false: files('kvm-stub.c'))
i386_softmmu_kvm_ss = ss.source_set()
i386_softmmu_kvm_ss.add(files(