Buildresult: powerpc-fixes/ps3_defconfig/powerpc-gcc5 built on Jun 21 2019, 00:05
kisskb
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Status:
OK
Date/Time:
Jun 21 2019, 00:05
Duration:
0:01:32.875231
Builder:
ka3
Revision:
KVM: PPC: Book3S HV: Invalidate ERAT when flushing guest TLB entries (
50087112592016a3fc10b394a55f1f1a1bde6908)
Target:
powerpc-fixes/ps3_defconfig/powerpc-gcc5
Branch:
powerpc-fixes
Compiler:
powerpc-gcc5
(powerpc64-linux-gcc (GCC) 5.5.0 / GNU ld (GNU Binutils) 2.29.1.20170915)
Config:
ps3_defconfig
(
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)
Log:
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Possible warnings (2)
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=] WARNING: vmlinux.o(.text+0x322a): Section mismatch in reference from the variable start_here_multiplatform to the function .init.text:.early_setup()
Full Log
# git rev-parse -q --verify 50087112592016a3fc10b394a55f1f1a1bde6908^{commit} 50087112592016a3fc10b394a55f1f1a1bde6908 already have revision, skipping fetch # git checkout -q -f -B kisskb 50087112592016a3fc10b394a55f1f1a1bde6908 # git clean -qxdf # < git log -1 # commit 50087112592016a3fc10b394a55f1f1a1bde6908 # Author: Suraj Jitindar Singh <sjitindarsingh@gmail.com> # Date: Thu Jun 20 11:46:49 2019 +1000 # # KVM: PPC: Book3S HV: Invalidate ERAT when flushing guest TLB entries # # When a guest vcpu moves from one physical thread to another it is # necessary for the host to perform a tlb flush on the previous core if # another vcpu from the same guest is going to run there. This is because the # guest may use the local form of the tlb invalidation instruction meaning # stale tlb entries would persist where it previously ran. This is handled # on guest entry in kvmppc_check_need_tlb_flush() which calls # flush_guest_tlb() to perform the tlb flush. # # Previously the generic radix__local_flush_tlb_lpid_guest() function was # used, however the functionality was reimplemented in flush_guest_tlb() # to avoid the trace_tlbie() call as the flushing may be done in real # mode. The reimplementation in flush_guest_tlb() was missing an erat # invalidation after flushing the tlb. # # This lead to observable memory corruption in the guest due to the # caching of stale translations. Fix this by adding the erat invalidation. # # Fixes: 70ea13f6e609 ("KVM: PPC: Book3S HV: Flush TLB on secondary radix threads") # 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 50087112592016a3fc10b394a55f1f1a1bde6908 # < make -s -j 80 ARCH=powerpc O=/kisskb/build/powerpc-fixes_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 80 ARCH=powerpc O=/kisskb/build/powerpc-fixes_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", ^ WARNING: vmlinux.o(.text+0x322a): Section mismatch in reference from the variable start_here_multiplatform to the function .init.text:.early_setup() The function start_here_multiplatform() references the function __init .early_setup(). This is often because start_here_multiplatform lacks a __init annotation or the annotation of .early_setup is wrong. Completed OK # rm -rf /kisskb/build/powerpc-fixes_ps3_defconfig_powerpc-gcc5 # Build took: 0:01:32.875231
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