[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] [Xen-devel] [PATCH 2/2] x86emul: in_longmode() should not ignore ->read_msr() errors
Suggested-by: George Dunlap <george.dunlap@xxxxxxxxxx> Signed-off-by: Jan Beulich <jbeulich@xxxxxxxx> --- a/xen/arch/x86/x86_emulate/x86_emulate.c +++ b/xen/arch/x86/x86_emulate/x86_emulate.c @@ -1296,10 +1296,10 @@ in_longmode( { uint64_t efer; - if (ops->read_msr == NULL) + if ( !ops->read_msr || + unlikely(ops->read_msr(MSR_EFER, &efer, ctxt) != X86EMUL_OKAY) ) return -1; - ops->read_msr(MSR_EFER, &efer, ctxt); return !!(efer & EFER_LMA); } Attachment:
x86emul-in_longmode-error-handling.patch _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxx https://lists.xen.org/xen-devel
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