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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


             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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