[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] [Xen-devel] [PATCH for-4.10] x86/hvm: Don't ignore unknown MSRs in the migration stream
Doing so amounts to silent state corruption, and must be avoided. Signed-off-by: Andrew Cooper <andrew.cooper3@xxxxxxxxxx> --- CC: Jan Beulich <JBeulich@xxxxxxxx> CC: Wei Liu <wei.liu2@xxxxxxxxxx> CC: Jun Nakajima <jun.nakajima@xxxxxxxxx> CC: Kevin Tian <kevin.tian@xxxxxxxxx> CC: Boris Ostrovsky <boris.ostrovsky@xxxxxxxxxx> CC: Suravee Suthikulpanit <suravee.suthikulpanit@xxxxxxx> CC: Julien Grall <julien.grall@xxxxxxx> This wants backporting to all stable trees, so should also be considered for inclusion into 4.10 at this point. --- xen/arch/x86/hvm/svm/svm.c | 2 +- xen/arch/x86/hvm/vmx/vmx.c | 3 ++- 2 files changed, 3 insertions(+), 2 deletions(-) diff --git a/xen/arch/x86/hvm/svm/svm.c b/xen/arch/x86/hvm/svm/svm.c index b9cf423..7b0e688 100644 --- a/xen/arch/x86/hvm/svm/svm.c +++ b/xen/arch/x86/hvm/svm/svm.c @@ -450,7 +450,7 @@ static int svm_load_msr(struct vcpu *v, struct hvm_msr *ctxt) break; default: - continue; + err = -ENXIO; } if ( err ) break; diff --git a/xen/arch/x86/hvm/vmx/vmx.c b/xen/arch/x86/hvm/vmx/vmx.c index b18ccea..fdb65a5 100644 --- a/xen/arch/x86/hvm/vmx/vmx.c +++ b/xen/arch/x86/hvm/vmx/vmx.c @@ -954,8 +954,9 @@ static int vmx_load_msr(struct vcpu *v, struct hvm_msr *ctxt) else err = -ENXIO; break; + default: - continue; + err = -ENXIO; } if ( err ) break; -- 2.1.4 _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxx https://lists.xen.org/xen-devel
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