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KVM: Remove CONFIG_HAVE_KVM_ARCH_TLB_FLUSH_ALL 

kvm_arch_flush_remote_tlbs() or CONFIG_HAVE_KVM_ARCH_TLB_FLUSH_ALL
are two mechanisms to solve the same problem, allowing
architecture-specific code to provide a non-IPI implementation of
remote TLB flushing.

Dropping CONFIG_HAVE_KVM_ARCH_TLB_FLUSH_ALL allows KVM to standardize
all architectures on kvm_arch_flush_remote_tlbs() instead of
maintaining two mechanisms.

Signed-off-by: Raghavendra Rao Ananta <rananta@google.com>
Reviewed-by: Shaoqin Huang <shahuang@redhat.com>
Reviewed-by: Gavin Shan <gshan@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20230811045127.3308641-5-rananta@google.com
This commit is contained in:
Raghavendra Rao Ananta 2023-08-11 04:51:17 +00:00 committed by Marc Zyngier
parent 32121c8138
commit eddd214810
2 changed files with 0 additions and 5 deletions
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3
virt/kvm/Kconfig
View File

@ -62,9 +62,6 @@ config HAVE_KVM_CPU_RELAX_INTERCEPT
config KVM_VFIO
bool
config HAVE_KVM_ARCH_TLB_FLUSH_ALL
bool
config HAVE_KVM_INVALID_WAKEUPS
bool

2
virt/kvm/kvm_main.c
View File

@ -345,7 +345,6 @@ bool kvm_make_all_cpus_request(struct kvm *kvm, unsigned int req)
}
EXPORT_SYMBOL_GPL(kvm_make_all_cpus_request);
#ifndef CONFIG_HAVE_KVM_ARCH_TLB_FLUSH_ALL
void kvm_flush_remote_tlbs(struct kvm *kvm)
{
++kvm->stat.generic.remote_tlb_flush_requests;
@ -366,7 +365,6 @@ void kvm_flush_remote_tlbs(struct kvm *kvm)
++kvm->stat.generic.remote_tlb_flush;
}
EXPORT_SYMBOL_GPL(kvm_flush_remote_tlbs);
#endif
static void kvm_flush_shadow_all(struct kvm *kvm)
{