Buildresult: powerpc-fixes/s390-defconfig/s390x-gcc8 built on Jul 14 2019, 23:04

kisskb

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Status:	OK
Date/Time:	Jul 14 2019, 23:04
Duration:	0:02:28.586961
Builder:	ka4
Revision:	powerpc: mm: Limit rma_size to 1TB when running without HV mode (`cc725cb44569f990c9aa4fd2ee08fa3f95237b02)`
Target:	powerpc-fixes/s390-defconfig/s390x-gcc8
Branch:	powerpc-fixes
Compiler:	s390x-gcc8 (s390-linux-gcc (GCC) 8.1.0 / GNU ld (GNU Binutils) 2.30)
Config:	defconfig (download)
Log:	Download original Possible warnings (2) <stdin>:1511:2: warning: #warning syscall clone3 not implemented [-Wcpp] drivers/net/ethernet/mellanox/mlx5/core/en/xsk/setup.c:127:1: warning: the frame size of 1312 bytes is larger than 1024 bytes [-Wframe-larger-than=] Full Log # git rev-parse -q --verify cc725cb44569f990c9aa4fd2ee08fa3f95237b02^{commit} cc725cb44569f990c9aa4fd2ee08fa3f95237b02 already have revision, skipping fetch # git checkout -q -f -B kisskb cc725cb44569f990c9aa4fd2ee08fa3f95237b02 # git clean -qxdf # < git log -1 # commit cc725cb44569f990c9aa4fd2ee08fa3f95237b02 # Author: Suraj Jitindar Singh <sjitindarsingh@gmail.com> # Date: Wed Jul 10 15:20:18 2019 +1000 # # powerpc: mm: Limit rma_size to 1TB when running without HV mode # # The virtual real mode addressing (VRMA) mechanism is used when a # partition is using HPT (Hash Page Table) translation and performs # real mode accesses (MSR[IR\|DR] = 0) in non-hypervisor mode. In this # mode effective address bits 0:23 are treated as zero (i.e. the access # is aliased to 0) and the access is performed using an implicit 1TB SLB # entry. # # The size of the RMA (Real Memory Area) is communicated to the guest as # the size of the first memory region in the device tree. And because of # the mechanism described above can be expected to not exceed 1TB. In the # event that the host erroneously represents the RMA as being larger than # 1TB, guest accesses in real mode to memory addresses above 1TB will be # aliased down to below 1TB. This means that a memory access performed in # real mode may differ to one performed in virtual mode for the same memory # address, which would likely have unintended consequences. # # To avoid this outcome have the guest explicitly limit the size of the # RMA to the current maximum, which is 1TB. This means that even if the # first memory block is larger than 1TB, only the first 1TB should be # accessed in real mode. # # Fixes: c3ab300ea555 ("powerpc: Add POWER9 cputable entry") # Cc: stable@vger.kernel.org # v4.6+ # Signed-off-by: Suraj Jitindar Singh <sjitindarsingh@gmail.com> # Tested-by: Satheesh Rajendran <sathnaga@linux.vnet.ibm.com> # Reviewed-by: David Gibson <david@gibson.dropbear.id.au> # Link: https://lore.kernel.org/r/20190710052018.14628-1-sjitindarsingh@gmail.com # < /opt/cross/kisskb/korg/gcc-8.1.0-nolibc/s390-linux/bin/s390-linux-gcc --version # < /opt/cross/kisskb/korg/gcc-8.1.0-nolibc/s390-linux/bin/s390-linux-ld --version # < git log --format=%s --max-count=1 cc725cb44569f990c9aa4fd2ee08fa3f95237b02 # < make -s -j 120 ARCH=s390 O=/kisskb/build/powerpc-fixes_s390-defconfig_s390x-gcc8 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-8.1.0-nolibc/s390-linux/bin/s390-linux- defconfig # make -s -j 120 ARCH=s390 O=/kisskb/build/powerpc-fixes_s390-defconfig_s390x-gcc8 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-8.1.0-nolibc/s390-linux/bin/s390-linux- <stdin>:1511:2: warning: #warning syscall clone3 not implemented [-Wcpp] /kisskb/src/drivers/net/ethernet/mellanox/mlx5/core/en/xsk/setup.c: In function 'mlx5e_open_xsk': /kisskb/src/drivers/net/ethernet/mellanox/mlx5/core/en/xsk/setup.c:127:1: warning: the frame size of 1312 bytes is larger than 1024 bytes [-Wframe-larger-than=] } ^ Completed OK # rm -rf /kisskb/build/powerpc-fixes_s390-defconfig_s390x-gcc8 # Build took: 0:02:28.586961

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