On 09/01/2019 04:40, kbuild test robot wrote: Marc, Christoffer,
> tree: https://git.kernel.org/pub/scm/linux/kernel/git/kvmarm/kvmarm.git > kvm-arm64/nv-wip-v5.0-rc1 > head: 688c386ca096f2c1f2eee386697586c88df5d5bc > commit: 2b1265c58a873d917e99ac762e243c1274481dbf [4/75] KVM: arm/arm64: > consolidate arch timer trap handlers > config: arm-axm55xx_defconfig (attached as .config) > compiler: arm-linux-gnueabi-gcc (Debian 7.2.0-11) 7.2.0 > reproduce: > wget > https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O > ~/bin/make.cross > chmod +x ~/bin/make.cross > git checkout 2b1265c58a873d917e99ac762e243c1274481dbf > # save the attached .config to linux build tree > GCC_VERSION=7.2.0 make.cross ARCH=arm > > All errors (new ones prefixed by >>): I was looking at this yesterday: It's a bit nasty, don't know a good solution beside bringing back this part of my original timer rework series. The problem is that those symbols contains the Aarch64 specific (instruction) encoding of the timer registers, plus we need the AArch32 encodings for 32-on-64 guests. That's why I used the generic UAPI encoding for the registers, because we only need *some* identification for them, it doesn't need to be something defined by the architecture. Since arch_timer.c is shared, but sys_regs.c and coproc.c are arch specific already, it seems natural to do the conversion in the trap handler and keep the arch_timer code generic. Does that make sense? I was a bit hesitant as it works against some of your changes. Cheers, Andre. > > arch/arm/kvm/../../../virt/kvm/arm/arch_timer.c: In function > 'get_timer_from_sysreg': >>> arch/arm/kvm/../../../virt/kvm/arm/arch_timer.c:700:7: error: >>> 'SYS_CNTP_TVAL_EL0' undeclared (first use in this function) > case SYS_CNTP_TVAL_EL0: > ^~~~~~~~~~~~~~~~~ > arch/arm/kvm/../../../virt/kvm/arm/arch_timer.c:700:7: note: each > undeclared identifier is reported only once for each function it appears in >>> arch/arm/kvm/../../../virt/kvm/arm/arch_timer.c:701:7: error: >>> 'SYS_CNTP_CTL_EL0' undeclared (first use in this function); did you mean >>> 'SYS_CNTP_TVAL_EL0'? > case SYS_CNTP_CTL_EL0: > ^~~~~~~~~~~~~~~~ > SYS_CNTP_TVAL_EL0 >>> arch/arm/kvm/../../../virt/kvm/arm/arch_timer.c:702:7: error: >>> 'SYS_CNTP_CVAL_EL0' undeclared (first use in this function); did you mean >>> 'SYS_CNTP_TVAL_EL0'? > case SYS_CNTP_CVAL_EL0: > ^~~~~~~~~~~~~~~~~ > SYS_CNTP_TVAL_EL0 >>> arch/arm/kvm/../../../virt/kvm/arm/arch_timer.c:703:7: error: >>> 'SYS_AARCH32_CNTP_TVAL' undeclared (first use in this function) > case SYS_AARCH32_CNTP_TVAL: > ^~~~~~~~~~~~~~~~~~~~~ >>> arch/arm/kvm/../../../virt/kvm/arm/arch_timer.c:704:7: error: >>> 'SYS_AARCH32_CNTP_CTL' undeclared (first use in this function); did you >>> mean 'SYS_AARCH32_CNTP_TVAL'? > case SYS_AARCH32_CNTP_CTL: > ^~~~~~~~~~~~~~~~~~~~ > SYS_AARCH32_CNTP_TVAL >>> arch/arm/kvm/../../../virt/kvm/arm/arch_timer.c:705:7: error: >>> 'SYS_AARCH32_CNTP_CVAL' undeclared (first use in this function); did you >>> mean 'SYS_AARCH32_CNTP_TVAL'? > case SYS_AARCH32_CNTP_CVAL: > ^~~~~~~~~~~~~~~~~~~~~ > SYS_AARCH32_CNTP_TVAL > arch/arm/kvm/../../../virt/kvm/arm/arch_timer.c: In function > 'kvm_arm_timer_read_sysreg': > arch/arm/kvm/../../../virt/kvm/arm/arch_timer.c:723:7: error: > 'SYS_CNTP_TVAL_EL0' undeclared (first use in this function) > case SYS_CNTP_TVAL_EL0: > ^~~~~~~~~~~~~~~~~ > arch/arm/kvm/../../../virt/kvm/arm/arch_timer.c:724:7: error: > 'SYS_AARCH32_CNTP_TVAL' undeclared (first use in this function) > case SYS_AARCH32_CNTP_TVAL: > ^~~~~~~~~~~~~~~~~~~~~ > arch/arm/kvm/../../../virt/kvm/arm/arch_timer.c:728:7: error: > 'SYS_CNTP_CTL_EL0' undeclared (first use in this function); did you mean > 'SYS_CNTP_TVAL_EL0'? > case SYS_CNTP_CTL_EL0: > ^~~~~~~~~~~~~~~~ > SYS_CNTP_TVAL_EL0 > arch/arm/kvm/../../../virt/kvm/arm/arch_timer.c:729:7: error: > 'SYS_AARCH32_CNTP_CTL' undeclared (first use in this function); did you mean > 'SYS_AARCH32_CNTP_TVAL'? > case SYS_AARCH32_CNTP_CTL: > ^~~~~~~~~~~~~~~~~~~~ > SYS_AARCH32_CNTP_TVAL > arch/arm/kvm/../../../virt/kvm/arm/arch_timer.c:733:7: error: > 'SYS_CNTP_CVAL_EL0' undeclared (first use in this function); did you mean > 'SYS_CNTP_TVAL_EL0'? > case SYS_CNTP_CVAL_EL0: > ^~~~~~~~~~~~~~~~~ > SYS_CNTP_TVAL_EL0 > arch/arm/kvm/../../../virt/kvm/arm/arch_timer.c:734:7: error: > 'SYS_AARCH32_CNTP_CVAL' undeclared (first use in this function); did you mean > 'SYS_AARCH32_CNTP_TVAL'? > case SYS_AARCH32_CNTP_CVAL: > ^~~~~~~~~~~~~~~~~~~~~ > SYS_AARCH32_CNTP_TVAL > arch/arm/kvm/../../../virt/kvm/arm/arch_timer.c: In function > 'kvm_arm_timer_write_sysreg': > arch/arm/kvm/../../../virt/kvm/arm/arch_timer.c:758:7: error: > 'SYS_CNTP_TVAL_EL0' undeclared (first use in this function) > case SYS_CNTP_TVAL_EL0: > ^~~~~~~~~~~~~~~~~ > arch/arm/kvm/../../../virt/kvm/arm/arch_timer.c:759:7: error: > 'SYS_AARCH32_CNTP_TVAL' undeclared (first use in this function) > case SYS_AARCH32_CNTP_TVAL: > ^~~~~~~~~~~~~~~~~~~~~ > arch/arm/kvm/../../../virt/kvm/arm/arch_timer.c:763:7: error: > 'SYS_CNTP_CTL_EL0' undeclared (first use in this function); did you mean > 'SYS_CNTP_TVAL_EL0'? > case SYS_CNTP_CTL_EL0: > ^~~~~~~~~~~~~~~~ > SYS_CNTP_TVAL_EL0 > arch/arm/kvm/../../../virt/kvm/arm/arch_timer.c:764:7: error: > 'SYS_AARCH32_CNTP_CTL' undeclared (first use in this function); did you mean > 'SYS_AARCH32_CNTP_TVAL'? > case SYS_AARCH32_CNTP_CTL: > ^~~~~~~~~~~~~~~~~~~~ > SYS_AARCH32_CNTP_TVAL > arch/arm/kvm/../../../virt/kvm/arm/arch_timer.c:768:7: error: > 'SYS_CNTP_CVAL_EL0' undeclared (first use in this function); did you mean > 'SYS_CNTP_TVAL_EL0'? > case SYS_CNTP_CVAL_EL0: > ^~~~~~~~~~~~~~~~~ > SYS_CNTP_TVAL_EL0 > arch/arm/kvm/../../../virt/kvm/arm/arch_timer.c:769:7: error: > 'SYS_AARCH32_CNTP_CVAL' undeclared (first use in this function); did you mean > 'SYS_AARCH32_CNTP_TVAL'? > case SYS_AARCH32_CNTP_CVAL: > ^~~~~~~~~~~~~~~~~~~~~ > SYS_AARCH32_CNTP_TVAL > > vim +/SYS_CNTP_TVAL_EL0 +700 arch/arm/kvm/../../../virt/kvm/arm/arch_timer.c > > 695 > 696 static struct arch_timer_context *get_timer_from_sysreg(struct > kvm_vcpu *vcpu, > 697 u32 sr) > 698 { > 699 switch (sr) { > > 700 case SYS_CNTP_TVAL_EL0: > > 701 case SYS_CNTP_CTL_EL0: > > 702 case SYS_CNTP_CVAL_EL0: > > 703 case SYS_AARCH32_CNTP_TVAL: > > 704 case SYS_AARCH32_CNTP_CTL: > > 705 case SYS_AARCH32_CNTP_CVAL: > 706 return vcpu_ptimer(vcpu); > 707 default: > 708 BUG(); > 709 } > 710 } > 711 > > --- > 0-DAY kernel test infrastructure Open Source Technology Center > https://lists.01.org/pipermail/kbuild-all Intel Corporation > _______________________________________________ kvmarm mailing list [email protected] https://lists.cs.columbia.edu/mailman/listinfo/kvmarm
