From: Paolo Bonzini <pbonzini@redhat.com>
To: linux-kernel@vger.kernel.org, kvm@vger.kernel.org
Cc: bgardon@google.com
Subject: [PATCH] KVM: x86: enable TDP MMU by default
Date: Mon, 26 Jul 2021 12:31:06 -0400 [thread overview]
Message-ID: <20210726163106.1433600-1-pbonzini@redhat.com> (raw)
With the addition of fast page fault support, the TDP-specific MMU has reached
feature parity with the original MMU. All my testing in the last few months
has been done with the TDP MMU; switch the default on 64-bit machines.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
---
arch/x86/kvm/mmu/tdp_mmu.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/x86/kvm/mmu/tdp_mmu.c b/arch/x86/kvm/mmu/tdp_mmu.c
index f86158d41af0..43f12f5d12c0 100644
--- a/arch/x86/kvm/mmu/tdp_mmu.c
+++ b/arch/x86/kvm/mmu/tdp_mmu.c
@@ -10,7 +10,7 @@
#include <asm/cmpxchg.h>
#include <trace/events/kvm.h>
-static bool __read_mostly tdp_mmu_enabled = false;
+static bool __read_mostly tdp_mmu_enabled = true;
module_param_named(tdp_mmu, tdp_mmu_enabled, bool, 0644);
/* Initializes the TDP MMU for the VM, if enabled. */
--
2.27.0
next reply other threads:[~2021-07-26 16:38 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-07-26 16:31 Paolo Bonzini [this message]
2021-07-26 16:53 ` [PATCH] KVM: x86: enable TDP MMU by default Ben Gardon
2022-07-26 14:57 ` Stoiko Ivanov
2022-07-26 15:43 ` Paolo Bonzini
2022-07-27 10:22 ` Maxim Levitsky
2022-07-27 13:31 ` Stoiko Ivanov
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