| Message ID | 1470302117-32296-4-git-send-email-mbrugger@suse.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
Hi Matthias,
[auto build test ERROR on arm64/for-next/core]
[also build test ERROR on v4.7]
[cannot apply to next-20160805]
[if your patch is applied to the wrong git tree, please drop us a note to help improve the system]
url: https://github.com/0day-ci/linux/commits/Matthias-Brugger/arm64-insn-Do-not-disable-irqs-during-patching/20160804-172016
base: https://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-next/core
config: arm-axm55xx_defconfig (attached as .config)
compiler: arm-linux-gnueabi-gcc (Debian 5.4.0-6) 5.4.0 20160609
reproduce:
wget https://git.kernel.org/cgit/linux/kernel/git/wfg/lkp-tests.git/plain/sbin/make.cross -O ~/bin/make.cross
chmod +x ~/bin/make.cross
# save the attached .config to linux build tree
make.cross ARCH=arm
All errors (new ones prefixed by >>):
arch/arm/kvm/arm.c: In function 'kvm_arch_init':
>> arch/arm/kvm/arm.c:1378:6: error: implicit declaration of function 'cpus_have_cap' [-Werror=implicit-function-declaration]
if (cpus_have_cap(ARM64_HAS_NO_BCAST_TLBI)) {
^
>> arch/arm/kvm/arm.c:1378:20: error: 'ARM64_HAS_NO_BCAST_TLBI' undeclared (first use in this function)
if (cpus_have_cap(ARM64_HAS_NO_BCAST_TLBI)) {
^
arch/arm/kvm/arm.c:1378:20: note: each undeclared identifier is reported only once for each function it appears in
cc1: some warnings being treated as errors
vim +/cpus_have_cap +1378 arch/arm/kvm/arm.c
1372 */
1373 int kvm_arch_init(void *opaque)
1374 {
1375 int err;
1376 int ret, cpu;
1377
> 1378 if (cpus_have_cap(ARM64_HAS_NO_BCAST_TLBI)) {
1379 kvm_err("Missing broadcast TLBI support.\n");
1380 return -ENODEV;
1381 }
---
0-DAY kernel test infrastructure Open Source Technology Center
https://lists.01.org/pipermail/kbuild-all Intel Corporation
diff --git a/arch/arm/kvm/arm.c b/arch/arm/kvm/arm.c index f1bde7c..e627fac 100644 --- a/arch/arm/kvm/arm.c +++ b/arch/arm/kvm/arm.c @@ -1376,6 +1376,11 @@ int kvm_arch_init(void *opaque) int err; int ret, cpu; + if (cpus_have_cap(ARM64_HAS_NO_BCAST_TLBI)) { + kvm_err("Missing broadcast TLBI support.\n"); + return -ENODEV; + } + if (!is_hyp_mode_available()) { kvm_err("HYP mode not available\n"); return -ENODEV;
KVM awaits a working broadcast TLBI implementation. Error out early when this is not provided by the hardware. Signed-off-by: Matthias Brugger <mbrugger@suse.com> --- arch/arm/kvm/arm.c | 5 +++++ 1 file changed, 5 insertions(+)