Messages in this thread |  | | Subject | Re: [PATCH 4.19 111/120] KVM: do not assume PTE is writable after follow_pfn | From | Paolo Bonzini <> | Date | Tue, 27 Jul 2021 00:02:44 +0200 |
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On 26/07/21 23:17, Sudip Mukherjee wrote: > Hi Greg, > > On Mon, Jul 26, 2021 at 4:58 PM Greg Kroah-Hartman > <gregkh@linuxfoundation.org> wrote: >> >> From: Paolo Bonzini <pbonzini@redhat.com> >> >> commit bd2fae8da794b55bf2ac02632da3a151b10e664c upstream. > > The build of mips malta_kvm_defconfig fails with the error: > In file included from arch/mips/kvm/../../../virt/kvm/kvm_main.c:21: > arch/mips/kvm/../../../virt/kvm/kvm_main.c: In function 'hva_to_pfn_remapped': > ./include/linux/kvm_host.h:70:33: error: conversion from 'long long > unsigned int' to 'long unsigned int' changes value from > '9218868437227405314' to '2' [-Werror=overflow] > 70 | #define KVM_PFN_ERR_RO_FAULT (KVM_PFN_ERR_MASK + 2) > | ^ > arch/mips/kvm/../../../virt/kvm/kvm_main.c:1530:23: note: in expansion > of macro 'KVM_PFN_ERR_RO_FAULT' > 1530 | pfn = KVM_PFN_ERR_RO_FAULT; > > It built fine after reverting this patch. > gcc version 11.1.1 20210723
I'll resend a version that works tomorrow (including the second patch too, which depends on this one for context).
Paolo
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