Buildresult: powerpc-next/ps3_defconfig/powerpc-gcc5 built on Jun 21 2019, 01:26
kisskb
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Status:
OK
Date/Time:
Jun 21 2019, 01:26
Duration:
0:01:53.883703
Builder:
blade4b
Revision:
KVM: PPC: Book3S HV: Clear pending decrementer exceptions on nested guest entry (
3c25ab35fbc8526ac0c9b298e8a78e7ad7a55479)
Target:
powerpc-next/ps3_defconfig/powerpc-gcc5
Branch:
powerpc-next
Compiler:
powerpc-gcc5
(powerpc64-linux-gcc (GCC) 5.5.0 / GNU ld (GNU Binutils) 2.29.1.20170915)
Config:
ps3_defconfig
(
download
)
Log:
Download original
Possible warnings (1)
drivers/block/ps3vram.c:770:23: warning: format '%lu' expects argument of type 'long unsigned int', but argument 4 has type 'sector_t {aka long long unsigned int}' [-Wformat=]
Full Log
# git rev-parse -q --verify 3c25ab35fbc8526ac0c9b298e8a78e7ad7a55479^{commit} 3c25ab35fbc8526ac0c9b298e8a78e7ad7a55479 already have revision, skipping fetch # git checkout -q -f -B kisskb 3c25ab35fbc8526ac0c9b298e8a78e7ad7a55479 # git clean -qxdf # < git log -1 # commit 3c25ab35fbc8526ac0c9b298e8a78e7ad7a55479 # Author: Suraj Jitindar Singh <sjitindarsingh@gmail.com> # Date: Thu Jun 20 11:46:51 2019 +1000 # # KVM: PPC: Book3S HV: Clear pending decrementer exceptions on nested guest entry # # If we enter an L1 guest with a pending decrementer exception then this # is cleared on guest exit if the guest has writtien a positive value # into the decrementer (indicating that it handled the decrementer # exception) since there is no other way to detect that the guest has # handled the pending exception and that it should be dequeued. In the # event that the L1 guest tries to run a nested (L2) guest immediately # after this and the L2 guest decrementer is negative (which is loaded # by L1 before making the H_ENTER_NESTED hcall), then the pending # decrementer exception isn't cleared and the L2 entry is blocked since # L1 has a pending exception, even though L1 may have already handled # the exception and written a positive value for it's decrementer. This # results in a loop of L1 trying to enter the L2 guest and L0 blocking # the entry since L1 has an interrupt pending with the outcome being # that L2 never gets to run and hangs. # # Fix this by clearing any pending decrementer exceptions when L1 makes # the H_ENTER_NESTED hcall since it won't do this if it's decrementer # has gone negative, and anyway it's decrementer has been communicated # to L0 in the hdec_expires field and L0 will return control to L1 when # this goes negative by delivering an H_DECREMENTER exception. # # Fixes: 95a6432ce903 ("KVM: PPC: Book3S HV: Streamlined guest entry/exit path on P9 for radix guests") # Cc: stable@vger.kernel.org # v4.20+ # Signed-off-by: Suraj Jitindar Singh <sjitindarsingh@gmail.com> # Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> # < /opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux-gcc --version # < /opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux-ld --version # < git log --format=%s --max-count=1 3c25ab35fbc8526ac0c9b298e8a78e7ad7a55479 # < make -s -j 24 ARCH=powerpc O=/kisskb/build/powerpc-next_ps3_defconfig_powerpc-gcc5 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux- ps3_defconfig # make -s -j 24 ARCH=powerpc O=/kisskb/build/powerpc-next_ps3_defconfig_powerpc-gcc5 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux- In file included from /kisskb/src/include/linux/genhd.h:67:0, from /kisskb/src/include/linux/blkdev.h:11, from /kisskb/src/drivers/block/ps3vram.c:12: /kisskb/src/drivers/block/ps3vram.c: In function 'ps3vram_probe': /kisskb/src/drivers/block/ps3vram.c:770:23: warning: format '%lu' expects argument of type 'long unsigned int', but argument 4 has type 'sector_t {aka long long unsigned int}' [-Wformat=] dev_info(&dev->core, "%s: Using %lu MiB of GPU memory\n", ^ /kisskb/src/include/linux/device.h:1400:22: note: in definition of macro 'dev_fmt' #define dev_fmt(fmt) fmt ^ /kisskb/src/drivers/block/ps3vram.c:770:2: note: in expansion of macro 'dev_info' dev_info(&dev->core, "%s: Using %lu MiB of GPU memory\n", ^ Completed OK # rm -rf /kisskb/build/powerpc-next_ps3_defconfig_powerpc-gcc5 # Build took: 0:01:53.883703
© Michael Ellerman 2006-2018.