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| author | Laurent Vivier <Laurent.Vivier@bull.net> | 2007-09-18 11:27:37 +0200 |
|---|---|---|
| committer | Avi Kivity <avi@qumranet.com> | 2008-01-30 17:52:47 +0200 |
| commit | 3427318fd2244737a466a06a93c5fe579852f871 (patch) | |
| tree | 7c6760dbbdd067498c470e6e4f711e5baeef491c /drivers/kvm/svm.c | |
| parent | 1be3aa47182e94944e57b176a5c4ee4e74f1ce33 (diff) | |
| download | lwn-3427318fd2244737a466a06a93c5fe579852f871.tar.gz lwn-3427318fd2244737a466a06a93c5fe579852f871.zip | |
KVM: Call x86_decode_insn() only when needed
Move emulate_ctxt to kvm_vcpu to keep emulate context when we exit from kvm
module. Call x86_decode_insn() only when needed. Modify x86_emulate_insn() to
not modify the context if it must be re-entered.
Signed-off-by: Laurent Vivier <Laurent.Vivier@bull.net>
Signed-off-by: Avi Kivity <avi@qumranet.com>
Diffstat (limited to 'drivers/kvm/svm.c')
| -rw-r--r-- | drivers/kvm/svm.c | 9 |
1 files changed, 5 insertions, 4 deletions
diff --git a/drivers/kvm/svm.c b/drivers/kvm/svm.c index 794d95416f7b..f268bd51f337 100644 --- a/drivers/kvm/svm.c +++ b/drivers/kvm/svm.c @@ -960,7 +960,7 @@ static int pf_interception(struct vcpu_svm *svm, struct kvm_run *kvm_run) return 1; } er = emulate_instruction(&svm->vcpu, kvm_run, fault_address, - error_code); + error_code, 0); mutex_unlock(&kvm->lock); switch (er) { @@ -984,7 +984,7 @@ static int ud_interception(struct vcpu_svm *svm, struct kvm_run *kvm_run) { int er; - er = emulate_instruction(&svm->vcpu, kvm_run, 0, 0); + er = emulate_instruction(&svm->vcpu, kvm_run, 0, 0, 0); if (er != EMULATE_DONE) inject_ud(&svm->vcpu); @@ -1027,7 +1027,8 @@ static int io_interception(struct vcpu_svm *svm, struct kvm_run *kvm_run) string = (io_info & SVM_IOIO_STR_MASK) != 0; if (string) { - if (emulate_instruction(&svm->vcpu, kvm_run, 0, 0) == EMULATE_DO_MMIO) + if (emulate_instruction(&svm->vcpu, + kvm_run, 0, 0, 0) == EMULATE_DO_MMIO) return 0; return 1; } @@ -1086,7 +1087,7 @@ static int cpuid_interception(struct vcpu_svm *svm, struct kvm_run *kvm_run) static int emulate_on_interception(struct vcpu_svm *svm, struct kvm_run *kvm_run) { - if (emulate_instruction(&svm->vcpu, NULL, 0, 0) != EMULATE_DONE) + if (emulate_instruction(&svm->vcpu, NULL, 0, 0, 0) != EMULATE_DONE) pr_unimpl(&svm->vcpu, "%s: failed\n", __FUNCTION__); return 1; } |