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linux-stable/arch/powerpc/platforms/85xx
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Michael Ellerman 0d897255e7 powerpc/85xx: Fix virt_to_phys() off-by-one in smp_85xx_start_cpu() 
In smp_85xx_start_cpu() we are passed an address but we're unsure if
it's a real or virtual address, so there's a check to determine that.

The check has an off-by-one in that it tests if the address is greater
than high_memory, but high_memory is the first address of high memory,
so the check should be greater-or-equal.

It seems this has never been a problem in practice, but it also triggers
the DEBUG_VIRTUAL checks in __pa() which we would like to avoid. We can
fix both issues by converting high_memory - 1 to a physical address and
testing against that.

Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20220406145802.538416-3-mpe@ellerman.id.au
2022-04-27 21:57:36 +10:00
..
bsc913x_qds.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
bsc913x_rdb.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
c293pcie.c powerpc/85xx: Make c293_pcie_pic_init() static 2021-11-29 22:49:17 +11:00
common.c powerpc/85xx: remove mostly pointless mpc85xx_qe_init() 2019-11-17 01:55:42 -06:00
corenet_generic.c powerpc/corenet: Change criteria to set MPIC_ENABLE_COREINT 2022-02-07 21:03:10 +11:00
ge_imp3a.c powerpc/85xx: Add __init attribute to eligible functions 2021-12-23 22:33:18 +11:00
Kconfig powerpc: retire sbc8548 board support 2021-08-27 00:48:11 +10:00
ksi8560.c
Makefile powerpc/85xx: fix timebase sync issue when CONFIG_HOTPLUG_CPU=n 2021-10-09 00:15:58 +11:00
mpc85xx.h powerpc/85xx: remove mostly pointless mpc85xx_qe_init() 2019-11-17 01:55:42 -06:00
mpc85xx_ads.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
mpc85xx_cds.c powerpc/85xx: Add __init attribute to eligible functions 2021-12-23 22:33:18 +11:00
mpc85xx_ds.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
mpc85xx_mds.c soc: fsl: qe: move calls of qe_ic_init out of arch/powerpc/ 2019-12-09 13:54:31 -06:00
mpc85xx_pm_ops.c powerpc/85xx: Fix no previous prototype warning for mpc85xx_setup_pmc() 2021-11-29 22:49:09 +11:00
mpc85xx_rdb.c soc: fsl: qe: move calls of qe_ic_init out of arch/powerpc/ 2019-12-09 13:54:31 -06:00
mpc8536_ds.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
mvme2500.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
p1010rdb.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
p1022_ds.c powerpc/dma: use the generic direct mapping bypass 2019-02-18 22:41:04 +11:00
p1022_rdk.c powerpc/dma: use the generic direct mapping bypass 2019-02-18 22:41:04 +11:00
p1023_rdb.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
ppa8548.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
qemu_e500.c powerpc/e500/qemu-e500: allow core to idle without waiting 2022-01-31 13:45:24 +11:00
sgy_cts1000.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
smp.c powerpc/85xx: Fix virt_to_phys() off-by-one in smp_85xx_start_cpu() 2022-04-27 21:57:36 +10:00
smp.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
socrates.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
socrates_fpga_pic.c powerpc/85xx: Add __init attribute to eligible functions 2021-12-23 22:33:18 +11:00
socrates_fpga_pic.h powerpc/85xx: Add __init attribute to eligible functions 2021-12-23 22:33:18 +11:00
stx_gp3.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
t1042rdb_diu.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
tqm85xx.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
twr_p102x.c ARM: SoC-related driver updates 2020-02-08 14:04:19 -08:00
xes_mpc85xx.c powerpc/85xx: Add __init attribute to eligible functions 2021-12-23 22:33:18 +11:00