# git rev-parse -q --verify 5a3840a470c41ec0b85cd36ca80370330656b163^{commit}
5a3840a470c41ec0b85cd36ca80370330656b163
already have revision, skipping fetch
# git checkout -q -f -B kisskb 5a3840a470c41ec0b85cd36ca80370330656b163
# git clean -qxdf
# < git log -1
# commit 5a3840a470c41ec0b85cd36ca80370330656b163
# Author: Oliver O'Halloran <oohall@gmail.com>
# Date:   Thu Jan 31 12:53:47 2019 +1100
# 
#     powerpc/papr_scm: Use the correct bind address
#     
#     When binding an SCM volume to a physical address the hypervisor has the
#     option to return early with a continue token with the expectation that
#     the guest will resume the bind operation until it completes. A quirk of
#     this interface is that the bind address will only be returned by the
#     first bind h-call and the subsequent calls will return
#     0xFFFF_FFFF_FFFF_FFFF for the bind address.
#     
#     We currently do not save the address returned by the first h-call. As a
#     result we will use the junk address as the base of the bound region if
#     the hypervisor decides to split the bind across multiple h-calls. This
#     bug was found when testing with very large SCM volumes where the bind
#     process would take more time than they hypervisor's internal h-call time
#     limit would allow. This patch fixes the issue by saving the bind address
#     from the first call.
#     
#     Cc: stable@vger.kernel.org
#     Fixes: b5beae5e224f ("powerpc/pseries: Add driver for PAPR SCM regions")
#     Signed-off-by: Oliver O'Halloran <oohall@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 5a3840a470c41ec0b85cd36ca80370330656b163
# < make -s -j 48 ARCH=powerpc O=/kisskb/build/powerpc-fixes_52xx_cm5200_defconfig_powerpc-gcc5 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux-  52xx/cm5200_defconfig
# make -s -j 48 ARCH=powerpc O=/kisskb/build/powerpc-fixes_52xx_cm5200_defconfig_powerpc-gcc5 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux-  
INFO: Uncompressed kernel (size 0x4deda0) overlaps the address of the wrapper(0x400000)
INFO: Fixing the link_address of wrapper to (0x500000)
Image Name:   Linux-5.0.0-rc1-g5a3840a470c4
Created:      Tue Feb  5 23:18:54 2019
Image Type:   PowerPC Linux Kernel Image (gzip compressed)
Data Size:    2513806 Bytes = 2454.89 KiB = 2.40 MiB
Load Address: 00000000
Entry Point:  00000000
Completed OK
# rm -rf /kisskb/build/powerpc-fixes_52xx_cm5200_defconfig_powerpc-gcc5
# Build took: 0:00:36.428413