From: Andrea Arcangeli <aarcange@redhat.com>
To: kvm@vger.kernel.org, linux-kernel@vger.kernel.org
Cc: Paolo Bonzini <pbonzini@redhat.com>,
Vitaly Kuznetsov <vkuznets@redhat.com>,
Sean Christopherson <sean.j.christopherson@intel.com>
Subject: [PATCH 07/13] KVM: monolithic: x86: remove __init section prefix from kvm_x86_cpu_has_kvm_support
Date: Mon, 4 Nov 2019 17:59:55 -0500 [thread overview]
Message-ID: <20191104230001.27774-8-aarcange@redhat.com> (raw)
In-Reply-To: <20191104230001.27774-1-aarcange@redhat.com>
Adjusts the section prefixes of some KVM x86 code function because
with the monolithic KVM model the section checker can now do a more
accurate static analysis at build time. This also allows to build
without CONFIG_SECTION_MISMATCH_WARN_ONLY=n.
The __init needs to be removed on vmx despite it's only svm calling it
from kvm_x86_hardware_enable which is eventually called by
hardware_enable_nolock() or there's a (potentially false positive)
warning (false positive because this function isn't called in the vmx
case). If this isn't needed the right cleanup isn't to put it in the
__init section, but to drop it. As long as it's defined in vmx as a
kvm_x86 operation, it's expectable that might eventually be called at
runtime while hot plugging new CPUs.
Signed-off-by: Andrea Arcangeli <aarcange@redhat.com>
---
arch/x86/include/asm/kvm_host.h | 4 ++--
arch/x86/kvm/vmx/vmx.c | 2 +-
2 files changed, 3 insertions(+), 3 deletions(-)
diff --git a/arch/x86/include/asm/kvm_host.h b/arch/x86/include/asm/kvm_host.h
index 2b03ec80f6d7..2ddc61fdcd09 100644
--- a/arch/x86/include/asm/kvm_host.h
+++ b/arch/x86/include/asm/kvm_host.h
@@ -998,7 +998,7 @@ struct kvm_lapic_irq {
bool msi_redir_hint;
};
-extern __init int kvm_x86_cpu_has_kvm_support(void);
+extern int kvm_x86_cpu_has_kvm_support(void);
extern __init int kvm_x86_disabled_by_bios(void);
extern int kvm_x86_hardware_enable(void);
extern void kvm_x86_hardware_disable(void);
@@ -1190,7 +1190,7 @@ extern bool kvm_x86_apic_init_signal_blocked(struct kvm_vcpu *vcpu);
extern int kvm_x86_enable_direct_tlbflush(struct kvm_vcpu *vcpu);
struct kvm_x86_ops {
- int (*cpu_has_kvm_support)(void); /* __init */
+ int (*cpu_has_kvm_support)(void);
int (*disabled_by_bios)(void); /* __init */
int (*hardware_enable)(void);
void (*hardware_disable)(void);
diff --git a/arch/x86/kvm/vmx/vmx.c b/arch/x86/kvm/vmx/vmx.c
index e406707381a4..87e5d7276ea4 100644
--- a/arch/x86/kvm/vmx/vmx.c
+++ b/arch/x86/kvm/vmx/vmx.c
@@ -2178,7 +2178,7 @@ void kvm_x86_cache_reg(struct kvm_vcpu *vcpu, enum kvm_reg reg)
}
}
-__init int kvm_x86_cpu_has_kvm_support(void)
+int kvm_x86_cpu_has_kvm_support(void)
{
return cpu_has_vmx();
}
next prev parent reply other threads:[~2019-11-04 23:00 UTC|newest]
Thread overview: 34+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-11-04 22:59 [PATCH 00/13] KVM monolithic v3 Andrea Arcangeli
2019-11-04 22:59 ` [PATCH 01/13] KVM: monolithic: x86: remove kvm.ko Andrea Arcangeli
2019-11-04 22:59 ` [PATCH 02/13] KVM: monolithic: x86: convert the kvm_x86_ops and kvm_pmu_ops methods to external functions Andrea Arcangeli
2019-11-04 22:59 ` [PATCH 03/13] kvm: monolithic: fixup x86-32 build Andrea Arcangeli
2019-11-05 10:04 ` Paolo Bonzini
2019-11-05 10:37 ` Paolo Bonzini
2019-11-05 13:54 ` Andrea Arcangeli
2019-11-05 14:09 ` Paolo Bonzini
2019-11-05 14:56 ` Andrea Arcangeli
2019-11-05 15:10 ` Paolo Bonzini
2019-11-08 13:56 ` Jessica Yu
2019-11-08 19:51 ` Paolo Bonzini
2019-11-08 20:01 ` Andrea Arcangeli
2019-11-08 21:02 ` Paolo Bonzini
2019-11-08 21:26 ` Andrea Arcangeli
2019-11-08 23:10 ` Paolo Bonzini
2019-11-09 3:30 ` Masahiro Yamada
2019-11-04 22:59 ` [PATCH 04/13] KVM: monolithic: x86: handle the request_immediate_exit variation Andrea Arcangeli
2019-11-04 22:59 ` [PATCH 05/13] KVM: monolithic: add more section prefixes Andrea Arcangeli
2019-11-05 10:16 ` Paolo Bonzini
2019-11-04 22:59 ` [PATCH 06/13] KVM: monolithic: x86: remove __exit section prefix from machine_unsetup Andrea Arcangeli
2019-11-05 10:16 ` Paolo Bonzini
2019-11-04 22:59 ` Andrea Arcangeli [this message]
2019-11-05 10:16 ` [PATCH 07/13] KVM: monolithic: x86: remove __init section prefix from kvm_x86_cpu_has_kvm_support Paolo Bonzini
2019-11-04 22:59 ` [PATCH 08/13] KVM: monolithic: remove exports Andrea Arcangeli
2019-11-04 22:59 ` [PATCH 09/13] KVM: monolithic: x86: drop the kvm_pmu_ops structure Andrea Arcangeli
2019-11-04 22:59 ` [PATCH 10/13] KVM: x86: optimize more exit handlers in vmx.c Andrea Arcangeli
2019-11-05 10:20 ` Paolo Bonzini
2019-11-04 22:59 ` [PATCH 11/13] KVM: retpolines: x86: eliminate retpoline from vmx.c exit handlers Andrea Arcangeli
2019-11-05 10:20 ` Paolo Bonzini
2019-11-04 23:00 ` [PATCH 12/13] KVM: retpolines: x86: eliminate retpoline from svm.c " Andrea Arcangeli
2019-11-05 10:21 ` Paolo Bonzini
2019-11-04 23:00 ` [PATCH 13/13] x86: retpolines: eliminate retpoline from msr event handlers Andrea Arcangeli
2019-11-05 10:21 ` Paolo Bonzini
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