From: Juergen Gross <jgross@suse.com>
To: kvm@vger.kernel.org, x86@kernel.org,
linux-arm-kernel@lists.infradead.org,
linux-kernel@vger.kernel.org
Cc: maz@kernel.org, ehabkost@redhat.com,
Juergen Gross <jgross@suse.com>,
James Morse <james.morse@arm.com>,
Alexandru Elisei <alexandru.elisei@arm.com>,
Suzuki K Poulose <suzuki.poulose@arm.com>,
Catalin Marinas <catalin.marinas@arm.com>,
Will Deacon <will@kernel.org>,
Paolo Bonzini <pbonzini@redhat.com>,
Sean Christopherson <seanjc@google.com>,
Vitaly Kuznetsov <vkuznets@redhat.com>,
Wanpeng Li <wanpengli@tencent.com>,
Jim Mattson <jmattson@google.com>, Joerg Roedel <joro@8bytes.org>,
Thomas Gleixner <tglx@linutronix.de>,
Ingo Molnar <mingo@redhat.com>, Borislav Petkov <bp@alien8.de>,
"H. Peter Anvin" <hpa@zytor.com>,
kvmarm@lists.cs.columbia.edu
Subject: [PATCH v2 4/6] kvm: use kvfree() in kvm_arch_free_vm()
Date: Fri, 3 Sep 2021 15:08:05 +0200 [thread overview]
Message-ID: <20210903130808.30142-5-jgross@suse.com> (raw)
In-Reply-To: <20210903130808.30142-1-jgross@suse.com>
By switching from kfree() to kvfree() in kvm_arch_free_vm() Arm64 can
use the common variant. This can be accomplished by adding another
macro __KVM_HAVE_ARCH_VM_FREE, which will be used only by x86 for now.
Further simplification can be achieved by adding __kvm_arch_free_vm()
doing the common part.
Suggested-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Juergen Gross <jgross@suse.com>
---
V2:
- new patch
---
arch/arm64/include/asm/kvm_host.h | 1 -
arch/arm64/kvm/arm.c | 8 --------
arch/x86/include/asm/kvm_host.h | 2 ++
arch/x86/kvm/x86.c | 2 +-
include/linux/kvm_host.h | 9 ++++++++-
5 files changed, 11 insertions(+), 11 deletions(-)
diff --git a/arch/arm64/include/asm/kvm_host.h b/arch/arm64/include/asm/kvm_host.h
index 41911585ae0c..39601fb87e69 100644
--- a/arch/arm64/include/asm/kvm_host.h
+++ b/arch/arm64/include/asm/kvm_host.h
@@ -767,7 +767,6 @@ int kvm_set_ipa_limit(void);
#define __KVM_HAVE_ARCH_VM_ALLOC
struct kvm *kvm_arch_alloc_vm(void);
-void kvm_arch_free_vm(struct kvm *kvm);
int kvm_arm_setup_stage2(struct kvm *kvm, unsigned long type);
diff --git a/arch/arm64/kvm/arm.c b/arch/arm64/kvm/arm.c
index 0ca72f5cda41..38fff5963d9f 100644
--- a/arch/arm64/kvm/arm.c
+++ b/arch/arm64/kvm/arm.c
@@ -299,14 +299,6 @@ struct kvm *kvm_arch_alloc_vm(void)
return vzalloc(sizeof(struct kvm));
}
-void kvm_arch_free_vm(struct kvm *kvm)
-{
- if (!has_vhe())
- kfree(kvm);
- else
- vfree(kvm);
-}
-
int kvm_arch_vcpu_precreate(struct kvm *kvm, unsigned int id)
{
if (irqchip_in_kernel(kvm) && vgic_initialized(kvm))
diff --git a/arch/x86/include/asm/kvm_host.h b/arch/x86/include/asm/kvm_host.h
index a809a9e4fa5c..f16fadfc030a 100644
--- a/arch/x86/include/asm/kvm_host.h
+++ b/arch/x86/include/asm/kvm_host.h
@@ -1521,6 +1521,8 @@ static inline struct kvm *kvm_arch_alloc_vm(void)
{
return __vmalloc(kvm_x86_ops.vm_size, GFP_KERNEL_ACCOUNT | __GFP_ZERO);
}
+
+#define __KVM_HAVE_ARCH_VM_FREE
void kvm_arch_free_vm(struct kvm *kvm);
#define __KVM_HAVE_ARCH_FLUSH_REMOTE_TLB
diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
index fd19b72a5733..cc552763f0e4 100644
--- a/arch/x86/kvm/x86.c
+++ b/arch/x86/kvm/x86.c
@@ -11129,7 +11129,7 @@ void kvm_arch_sched_in(struct kvm_vcpu *vcpu, int cpu)
void kvm_arch_free_vm(struct kvm *kvm)
{
kfree(to_kvm_hv(kvm)->hv_pa_pg);
- vfree(kvm);
+ __kvm_arch_free_vm(kvm);
}
diff --git a/include/linux/kvm_host.h b/include/linux/kvm_host.h
index ae7735b490b4..d75e9c2a00b1 100644
--- a/include/linux/kvm_host.h
+++ b/include/linux/kvm_host.h
@@ -1044,10 +1044,17 @@ static inline struct kvm *kvm_arch_alloc_vm(void)
{
return kzalloc(sizeof(struct kvm), GFP_KERNEL);
}
+#endif
+
+static inline void __kvm_arch_free_vm(struct kvm *kvm)
+{
+ kvfree(kvm);
+}
+#ifndef __KVM_HAVE_ARCH_VM_FREE
static inline void kvm_arch_free_vm(struct kvm *kvm)
{
- kfree(kvm);
+ __kvm_arch_free_vm(kvm);
}
#endif
--
2.26.2
next prev parent reply other threads:[~2021-09-03 13:08 UTC|newest]
Thread overview: 23+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-09-03 13:08 [PATCH v2 0/6] x86/kvm: add boot parameters for max vcpu configs Juergen Gross
2021-09-03 13:08 ` [PATCH v2 1/6] x86/kvm: remove non-x86 stuff from arch/x86/kvm/ioapic.h Juergen Gross
2021-09-03 13:08 ` [PATCH v2 2/6] x86/kvm: add boot parameter for adding vcpu-id bits Juergen Gross
2021-09-03 13:43 ` Vitaly Kuznetsov
2021-09-03 13:53 ` Juergen Gross
2021-09-03 19:48 ` Eduardo Habkost
2021-09-06 4:46 ` Juergen Gross
2021-09-28 16:41 ` Paolo Bonzini
2021-09-03 13:08 ` [PATCH v2 3/6] x86/kvm: introduce per cpu vcpu masks Juergen Gross
2021-09-03 16:05 ` Eduardo Habkost
2021-09-06 4:34 ` Juergen Gross
2021-09-07 18:34 ` Eduardo Habkost
2021-09-08 8:41 ` Vitaly Kuznetsov
2021-09-03 13:08 ` Juergen Gross [this message]
2021-09-28 16:48 ` [PATCH v2 4/6] kvm: use kvfree() in kvm_arch_free_vm() Paolo Bonzini
2021-09-03 13:08 ` [PATCH v2 5/6] kvm: allocate vcpu pointer array separately Juergen Gross
2021-09-03 14:41 ` Marc Zyngier
2021-09-06 4:33 ` Juergen Gross
2021-09-06 9:46 ` Marc Zyngier
2021-09-09 20:28 ` Sean Christopherson
2021-09-03 13:08 ` [PATCH v2 6/6] x86/kvm: add boot parameter for setting max number of vcpus per guest Juergen Gross
2021-09-06 0:45 ` Yao Yuan
2021-09-06 4:47 ` Juergen Gross
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