From: Nicholas Piggin <npiggin@gmail.com>
To: linuxppc-dev@lists.ozlabs.org
Cc: Sachin Sant <sachinp@linux.vnet.ibm.com>,
Nicholas Piggin <npiggin@gmail.com>
Subject: [PATCH 0/8] powerpc: fast interrupt exit bug and misc fixes
Date: Mon, 28 Jun 2021 17:49:24 +1000 [thread overview]
Message-ID: <20210628074932.1499554-1-npiggin@gmail.com> (raw)
This is a bunch of fixes for powerpc next, mostly a nasty hole in fast
interrupt exit code found by Sachin and some other bits along the way
while looking at it.
So far this survives about 5 hours of stress testing with a workload
that would trigger it in a few seconds (guest 128 vcpus running kernel
compile loops with perf record -ag running in the background).
Thanks,
Nick
Nicholas Piggin (8):
powerpc/64e: fix CONFIG_RELOCATABLE build
powerpc/64e: remove implicit soft-masking and interrupt exit restart
logic
powerpc/64s: add a table of implicit soft-masked addresses
powerpc/64s/interrupt: preserve regs->softe for NMI interrupts
powerpc/64: enable MSR[EE] in irq replay pt_regs
powerpc/64/interrupts: add missing kprobe annotations on interrupt
exit symbols
powerpc/64s/interrupt: clean up interrupt return labels
powerpc/64s: move ret_from_fork etc above __end_soft_masked
arch/powerpc/include/asm/interrupt.h | 41 ++++++++++---
arch/powerpc/include/asm/ppc_asm.h | 7 +++
arch/powerpc/kernel/exceptions-64e.S | 23 +++----
arch/powerpc/kernel/exceptions-64s.S | 55 ++++++++++++++---
arch/powerpc/kernel/interrupt_64.S | 90 ++++++++++++++++++----------
arch/powerpc/kernel/irq.c | 1 +
arch/powerpc/kernel/vmlinux.lds.S | 9 +++
arch/powerpc/lib/restart_table.c | 26 ++++++++
8 files changed, 194 insertions(+), 58 deletions(-)
--
2.23.0
next reply other threads:[~2021-06-28 7:50 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-06-28 7:49 Nicholas Piggin [this message]
2021-06-28 7:49 ` [PATCH 1/8] powerpc/64e: fix CONFIG_RELOCATABLE build Nicholas Piggin
2021-06-28 7:49 ` [PATCH 2/8] powerpc/64e: remove implicit soft-masking and interrupt exit restart logic Nicholas Piggin
2021-06-28 7:49 ` [PATCH 3/8] powerpc/64s: add a table of implicit soft-masked addresses Nicholas Piggin
2021-06-28 14:26 ` Sachin Sant
2021-06-28 7:49 ` [PATCH 4/8] powerpc/64s/interrupt: preserve regs->softe for NMI interrupts Nicholas Piggin
2021-06-28 7:49 ` [PATCH 5/8] powerpc/64: enable MSR[EE] in irq replay pt_regs Nicholas Piggin
2021-06-28 14:37 ` Sachin Sant
2021-06-28 20:15 ` Nicholas Piggin
2021-06-28 7:49 ` [PATCH 6/8] powerpc/64/interrupts: add missing kprobe annotations on interrupt exit symbols Nicholas Piggin
2021-06-28 7:49 ` [PATCH 7/8] powerpc/64s/interrupt: clean up interrupt return labels Nicholas Piggin
2021-06-28 7:49 ` [PATCH 8/8] powerpc/64s: move ret_from_fork etc above __end_soft_masked Nicholas Piggin
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