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| author | Joerg Roedel <joerg.roedel@amd.com> | 2011-04-04 12:39:34 +0200 |
|---|---|---|
| committer | Avi Kivity <avi@redhat.com> | 2011-05-11 07:57:02 -0400 |
| commit | bf608f88faef1245ff87e731512517fc676ffe02 (patch) | |
| tree | ca1cada4df6cd8cd2f4bb6978ff270fa2e242fd9 /arch/x86/kvm/svm.c | |
| parent | 8061252ee0d21e1289235a4b7fe61f53010c46ff (diff) | |
| download | lwn-bf608f88faef1245ff87e731512517fc676ffe02.tar.gz lwn-bf608f88faef1245ff87e731512517fc676ffe02.zip | |
KVM: SVM: Add intercept checks for one-byte instructions
This patch add intercept checks for emulated one-byte
instructions to the KVM instruction emulation path.
Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
Diffstat (limited to 'arch/x86/kvm/svm.c')
| -rw-r--r-- | arch/x86/kvm/svm.c | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/arch/x86/kvm/svm.c b/arch/x86/kvm/svm.c index 903628922440..9eb27100e2ea 100644 --- a/arch/x86/kvm/svm.c +++ b/arch/x86/kvm/svm.c @@ -3918,6 +3918,13 @@ static struct __x86_intercept { [x86_intercept_rdpmc] = POST_EX(SVM_EXIT_RDPMC), [x86_intercept_cpuid] = PRE_EX(SVM_EXIT_CPUID), [x86_intercept_rsm] = PRE_EX(SVM_EXIT_RSM), + [x86_intercept_pause] = PRE_EX(SVM_EXIT_PAUSE), + [x86_intercept_pushf] = PRE_EX(SVM_EXIT_PUSHF), + [x86_intercept_popf] = PRE_EX(SVM_EXIT_POPF), + [x86_intercept_intn] = PRE_EX(SVM_EXIT_SWINT), + [x86_intercept_iret] = PRE_EX(SVM_EXIT_IRET), + [x86_intercept_icebp] = PRE_EX(SVM_EXIT_ICEBP), + [x86_intercept_hlt] = POST_EX(SVM_EXIT_HLT), }; #undef PRE_EX @@ -3987,6 +3994,13 @@ static int svm_check_intercept(struct kvm_vcpu *vcpu, else vmcb->control.exit_info_1 = 0; break; + case SVM_EXIT_PAUSE: + /* + * We get this for NOP only, but pause + * is rep not, check this here + */ + if (info->rep_prefix != REPE_PREFIX) + goto out; default: break; } |