Searched hist:e1100cee059ad0bea6a668177e835baa087a0c65 (Results 1 – 3 of 3) sorted by relevance
| /openbmc/linux/arch/powerpc/kernel/ |
| H A D | head_64.S | diff e1100cee059ad0bea6a668177e835baa087a0c65 Mon Sep 26 00:56:20 CDT 2022 Nicholas Piggin <npiggin@gmail.com> powerpc/64s/interrupt: halt early boot interrupts if paca is not set up
Ensure r13 is zero from very early in boot until it gets set to the
boot paca pointer. This allows early program and mce handlers to halt
if there is no valid paca, rather than potentially run off into the
weeds. This preserves register and memory contents for low level
debugging tools.
Nothing could be printed to console at this point in any case because
even udbg is only set up after the boot paca is set, so this shouldn't
be missed.
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20220926055620.2676869-6-npiggin@gmail.com
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| H A D | setup_64.c | diff e1100cee059ad0bea6a668177e835baa087a0c65 Mon Sep 26 00:56:20 CDT 2022 Nicholas Piggin <npiggin@gmail.com> powerpc/64s/interrupt: halt early boot interrupts if paca is not set up
Ensure r13 is zero from very early in boot until it gets set to the
boot paca pointer. This allows early program and mce handlers to halt
if there is no valid paca, rather than potentially run off into the
weeds. This preserves register and memory contents for low level
debugging tools.
Nothing could be printed to console at this point in any case because
even udbg is only set up after the boot paca is set, so this shouldn't
be missed.
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20220926055620.2676869-6-npiggin@gmail.com
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| H A D | exceptions-64s.S | diff e1100cee059ad0bea6a668177e835baa087a0c65 Mon Sep 26 00:56:20 CDT 2022 Nicholas Piggin <npiggin@gmail.com> powerpc/64s/interrupt: halt early boot interrupts if paca is not set up
Ensure r13 is zero from very early in boot until it gets set to the
boot paca pointer. This allows early program and mce handlers to halt
if there is no valid paca, rather than potentially run off into the
weeds. This preserves register and memory contents for low level
debugging tools.
Nothing could be printed to console at this point in any case because
even udbg is only set up after the boot paca is set, so this shouldn't
be missed.
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20220926055620.2676869-6-npiggin@gmail.com
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