Marcelo Tosatti wrote:
There is not much point in write protecting large mappings. This can only happen when a page is shadowed during the window between is_largepage_backed and mmu_lock acquision. Zap the entry instead, so the next pagefault will find a shadowed page via is_largepage_backed and fallback to 4k translations.Simplifies out of sync shadow. @@ -1222,6 +1221,14 @@ static void mmu_set_spte(struct kvm_vcpu if (write_fault) *ptwrite = 1; } + /* + * Do not create write protected large translations. + */ + if (largepage && has_wrprotected_page(vcpu->kvm, gfn)) { + spte = shadow_trap_nonpresent_pte; + was_writeble = 0; + *ptwrite = 0; + } }
Why are you clearing was_writable? -- error compiling committee.c: too many arguments to function -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html
