From: "Cédric Le Goater" <clg@kaod•org>
To: linuxppc-dev@lists•ozlabs.org
Cc: "Michael Ellerman" <mpe@ellerman•id.au>,
"Benjamin Herrenschmidt" <benh@kernel•crashing.org>,
"Cédric Le Goater" <clg@kaod•org>
Subject: [PATCH 0/4] powerpc/xive: add support for H_INT_RESET
Date: Tue, 3 Apr 2018 09:15:44 +0200 [thread overview]
Message-ID: <20180403071548.19829-1-clg@kaod.org> (raw)
H_INT_RESET performs a reset of the Hypervisor internal interrupt
structures, removing all settings done with H_INT_SET_SOURCE_CONFIG
and H_INT_SET_QUEUE_CONFIG. This is most important for kdump and kexec
to be able to restart in a clean state.
First patch closes a window in the kexec sequence in which the
H_INT_RESET hcall can be run concurrently with other hcalls when CPUs
are brought down. The other patches wire up the reset hcall making
sure it supports H_LONG_BUSY_* returned by the Hypervisor.
Cédric Le Goater (4):
powerpc/64/kexec: fix race in kexec when XIVE is shutdowned
powerpc/xive: fix hcall H_INT_RESET to support long busy delays
powerpc/xive: shutdown XIVE when kexec or kdump is performed
powerpc/xive: prepare all hcalls to support long busy delays
arch/powerpc/kernel/machine_kexec_64.c | 8 +--
arch/powerpc/platforms/pseries/kexec.c | 7 ++-
arch/powerpc/sysdev/xive/spapr.c | 89 +++++++++++++++++++++++++++++-----
3 files changed, 85 insertions(+), 19 deletions(-)
--
2.13.6
next reply other threads:[~2018-04-03 7:31 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-04-03 7:15 Cédric Le Goater [this message]
2018-04-03 7:15 ` [PATCH 1/4] powerpc/64/kexec: fix race in kexec when XIVE is shutdowned Cédric Le Goater
2018-05-04 10:41 ` Michael Ellerman
2018-05-04 11:13 ` Cédric Le Goater
2018-05-04 11:36 ` Cédric Le Goater
2018-04-03 7:15 ` [PATCH 2/4] powerpc/xive: fix hcall H_INT_RESET to support long busy delays Cédric Le Goater
2018-05-04 10:41 ` Michael Ellerman
2018-05-04 11:27 ` Cédric Le Goater
2018-04-03 7:15 ` [PATCH 3/4] powerpc/xive: shutdown XIVE when kexec or kdump is performed Cédric Le Goater
2018-05-04 10:42 ` Michael Ellerman
2018-05-04 11:42 ` Cédric Le Goater
2018-04-03 7:15 ` [PATCH 4/4] powerpc/xive: prepare all hcalls to support long busy delays Cédric Le Goater
2018-05-04 10:42 ` Michael Ellerman
2018-05-04 11:49 ` Cédric Le Goater
2018-05-04 22:29 ` Benjamin Herrenschmidt
2018-05-07 2:30 ` Michael Ellerman
2018-05-07 7:32 ` Cédric Le Goater
2018-04-30 16:21 ` [PATCH 0/4] powerpc/xive: add support for H_INT_RESET Cédric Le Goater
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