11:25 a.m.
Hi Marc,
FYI, the error/warning still remains.
tree: https://android.googlesource.com/kernel/common android12-5.10
head: d0331b15e6abcacfccdc17a384f2de69c89b25fc
commit: 194fd166b5d5f6694047b45dc409f9620a8a9646 [6732/10755] BACKPORT: FROMGIT: KVM:
arm64: Trap host SVE accesses when the FPSIMD state is dirty
config: arm64-randconfig-r022-20210816 (attached as .config)
compiler: clang version 14.0.0 (https://github.com/llvm/llvm-project
2c6448cdc2f68f8c28fd0bd9404182b81306e6e6)
reproduce (this is a W=1 build):
wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O
~/bin/make.cross
chmod +x ~/bin/make.cross
# install arm64 cross compiling tool for clang build
# apt-get install binutils-aarch64-linux-gnu
git remote add android-common https://android.googlesource.com/kernel/common
git fetch --no-tags android-common android12-5.10
git checkout 194fd166b5d5f6694047b45dc409f9620a8a9646
# save the attached .config to linux build tree
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=arm64
If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp(a)intel.com>
All errors (new ones prefixed by >>):
In file included from arch/arm64/kvm/hyp/nvhe/hyp-main.c:7:
arch/arm64/kvm/hyp/include/hyp/switch.h:216:2: error: implicit declaration of function
'sve_cond_update_zcr_vq' [-Werror,-Wimplicit-function-declaration]
sve_cond_update_zcr_vq(vcpu_sve_max_vq(vcpu) - 1, SYS_ZCR_EL2);
^
> arch/arm64/kvm/hyp/nvhe/hyp-main.c:245:3: error: implicit
declaration of function 'sve_cond_update_zcr_vq'
[-Werror,-Wimplicit-function-declaration]
sve_cond_update_zcr_vq(ZCR_ELx_LEN_MASK, SYS_ZCR_EL2);
^
arch/arm64/kvm/hyp/nvhe/hyp-main.c:233:6: warning: no previous prototype for function
'handle_trap' [-Wmissing-prototypes]
void handle_trap(struct kvm_cpu_context *host_ctxt)
^
arch/arm64/kvm/hyp/nvhe/hyp-main.c:233:1: note: declare 'static' if the
function is not intended to be used outside of this translation unit
void handle_trap(struct kvm_cpu_context *host_ctxt)
^
static
1 warning and 2 errors generated.
vim +/sve_cond_update_zcr_vq +245 arch/arm64/kvm/hyp/nvhe/hyp-main.c
232
233 void handle_trap(struct kvm_cpu_context *host_ctxt)
234 {
235 u64 esr = read_sysreg_el2(SYS_ESR);
236
237 switch (ESR_ELx_EC(esr)) {
238 case ESR_ELx_EC_HVC64:
239 handle_host_hcall(host_ctxt);
240 break;
241 case ESR_ELx_EC_SMC64:
242 handle_host_smc(host_ctxt);
243 break;
244 case ESR_ELx_EC_SVE:
245 sve_cond_update_zcr_vq(ZCR_ELx_LEN_MASK, SYS_ZCR_EL2);
---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org