lkml.org 
[lkml]   [2021]   [Jul]   [13]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
Date
Subject[PATCH v2 20/46] KVM: SVM: Don't bother writing vmcb->save.rip at vCPU RESET/INIT
From
Drop unnecessary initialization of vmcb->save.rip during vCPU RESET/INIT,
as svm_vcpu_run() unconditionally propagates VCPU_REGS_RIP to save.rip.

No true functional change intended.

Reviewed-by: Reiji Watanabe <reijiw@google.com>
Signed-off-by: Sean Christopherson <seanjc@google.com>
---
arch/x86/kvm/svm/svm.c | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/arch/x86/kvm/svm/svm.c b/arch/x86/kvm/svm/svm.c
index 268580713938..0101646e42e0 100644
--- a/arch/x86/kvm/svm/svm.c
+++ b/arch/x86/kvm/svm/svm.c
@@ -1266,8 +1266,7 @@ static void init_vmcb(struct kvm_vcpu *vcpu)
svm_set_efer(vcpu, 0);
save->dr6 = 0xffff0ff0;
kvm_set_rflags(vcpu, X86_EFLAGS_FIXED);
- save->rip = 0x0000fff0;
- vcpu->arch.regs[VCPU_REGS_RIP] = save->rip;
+ vcpu->arch.regs[VCPU_REGS_RIP] = 0x0000fff0;

/*
* svm_set_cr0() sets PG and WP and clears NW and CD on save->cr0.
--
2.32.0.93.g670b81a890-goog
\
 
 \ /
  Last update: 2021-07-13 18:35    [W:0.177 / U:0.692 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site