AuxXxilium/linux_dsm_epyc7002
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477f3488a9
linux_dsm_epyc7002/arch/powerpc
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Christophe Leroy 477f3488a9 powerpc/6xx: Fix power_save_ppc32_restore() with CONFIG_VMAP_STACK 
power_save_ppc32_restore() is called during exception entry, before
re-enabling the MMU. It substracts KERNELBASE from the address
of nap_save_msscr0 to access it.

With CONFIG_VMAP_STACK enabled, data MMU translation has already been
re-enabled, so power_save_ppc32_restore() has to access
nap_save_msscr0 by its virtual address.

Reported-by: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr>
Fixes: cd08f109e2 ("powerpc/32s: Enable CONFIG_VMAP_STACK")
Tested-by: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/7bce32ccbab3ba3e3e0f27da6961bf6313df97ed.1581663140.git.christophe.leroy@c-s.fr
2020-02-18 21:31:12 +11:00
..
boot Kbuild updates for v5.6 (2nd) 2020-02-09 16:05:50 -08:00
configs virtio: fixes, cleanups 2020-02-07 12:26:34 -08:00
crypto crypto: remove CRYPTO_TFM_RES_BAD_KEY_LEN 2020-01-09 11:30:53 +08:00
include powerpc/32s: Fix DSI and ISI exceptions for CONFIG_VMAP_STACK 2020-02-18 21:31:11 +11:00
kernel powerpc/6xx: Fix power_save_ppc32_restore() with CONFIG_VMAP_STACK 2020-02-18 21:31:12 +11:00
kexec
kvm powerpc updates for 5.6 2020-02-04 13:06:46 +00:00
lib powerpc: Fix __clear_user() with KUAP enabled 2019-12-16 23:19:44 +11:00
math-emu
mm powerpc/32s: Fix DSI and ISI exceptions for CONFIG_VMAP_STACK 2020-02-18 21:31:11 +11:00
net
oprofile powerpc updates for 5.6 2020-02-04 13:06:46 +00:00
perf powerpc/8xx: Use alternative scratch registers in DTLB miss handler 2020-01-27 22:36:16 +11:00
platforms ARM: SoC-related driver updates 2020-02-08 14:04:19 -08:00
purgatory
sysdev powerpc updates for 5.6 2020-02-04 13:06:46 +00:00
tools powerpc: Do not consider weak unresolved symbol relocations as bad 2020-01-31 20:17:22 +11:00
xmon powerpc/xmon: Fix compile error in print_insn* functions 2020-01-26 00:11:35 +11:00
Kbuild
Kconfig powerpc updates for 5.6 2020-02-04 13:06:46 +00:00
Kconfig.debug powerpc/ptdump: Only enable PPC_CHECK_WX with STRICT_KERNEL_RWX 2020-01-23 21:31:13 +11:00
Makefile
Makefile.postlink powerpc: Do not consider weak unresolved symbol relocations as bad 2020-01-31 20:17:22 +11:00