[PATCH 17/50] KVM: Remove unnecessary ->decache_regs() call

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From: Avi Kivity
Date: Thursday, June 26, 2008 - 5:27 am

Since we aren't modifying any register, there's no need to decache
the register state.

Signed-off-by: Avi Kivity <avi@qumranet.com>
---
 arch/x86/kvm/x86.c |    1 -
 1 files changed, 0 insertions(+), 1 deletions(-)

diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
index 9156d63..28642c4 100644
--- a/arch/x86/kvm/x86.c
+++ b/arch/x86/kvm/x86.c
@@ -2297,7 +2297,6 @@ int kvm_emulate_pio(struct kvm_vcpu *vcpu, struct kvm_run *run, int in,
 
 	kvm_x86_ops->cache_regs(vcpu);
 	memcpy(vcpu->arch.pio_data, &vcpu->arch.regs[VCPU_REGS_RAX], 4);
-	kvm_x86_ops->decache_regs(vcpu);
 
 	kvm_x86_ops->skip_emulated_instruction(vcpu);
 
-- 
1.5.6

--
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Messages in current thread:
[PATCH 06/50] KVM: add missing kvmtrace bits, Avi Kivity, (Thu Jun 26, 5:27 am)
[PATCH 07/50] KVM: SVM: add missing kvmtrace markers, Avi Kivity, (Thu Jun 26, 5:27 am)
[PATCH 10/50] KVM: PIT: support mode 3, Avi Kivity, (Thu Jun 26, 5:27 am)
[PATCH 17/50] KVM: Remove unnecessary ->decache_regs() call, Avi Kivity, (Thu Jun 26, 5:27 am)
[PATCH 18/50] KVM: IOAPIC/LAPIC: Enable NMI support, Avi Kivity, (Thu Jun 26, 5:28 am)
[PATCH 21/50] KVM: MTRR support, Avi Kivity, (Thu Jun 26, 5:28 am)
[PATCH 28/50] KVM: MMU: Optimize prefetch_page(), Avi Kivity, (Thu Jun 26, 5:28 am)
[PATCH 32/50] KVM: MMU: Avoid page prefetch on SVM, Avi Kivity, (Thu Jun 26, 5:28 am)
[PATCH 40/50] KVM: Support mixed endian machines, Avi Kivity, (Thu Jun 26, 5:28 am)
[PATCH 50/50] KVM: MMU: Fix printk format, Avi Kivity, (Thu Jun 26, 5:28 am)