* [PATCH] never re-execute instruction with enabled tdp
@ 2010-07-14 16:05 Gleb Natapov
2010-07-14 16:47 ` Marcelo Tosatti
0 siblings, 1 reply; 2+ messages in thread
From: Gleb Natapov @ 2010-07-14 16:05 UTC (permalink / raw)
To: mtosatti, avi; +Cc: kvm
With tdp enabled we should get into emulator only when emulating io, so
reexecution will always bring us back into emulator.
Signed-off-by: Gleb Natapov <gleb@redhat.com>
diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
index fb08316..86c8102 100644
--- a/arch/x86/kvm/x86.c
+++ b/arch/x86/kvm/x86.c
@@ -3936,6 +3936,9 @@ static bool reexecute_instruction(struct kvm_vcpu *vcpu, gva_t gva)
{
gpa_t gpa;
+ if (tdp_enabled)
+ return false;
+
/*
* if emulation was due to access to shadowed page table
* and it failed try to unshadow page and re-entetr the
--
Gleb.
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2010-07-14 16:05 [PATCH] never re-execute instruction with enabled tdp Gleb Natapov
2010-07-14 16:47 ` Marcelo Tosatti
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