From: "Thomas Weißschuh" <thomas@t-8ch.de>
To: "Michael S. Tsirkin" <mst@redhat.com>,
Cornelia Huck <cohuck@redhat.com>,
Paolo Bonzini <pbonzini@redhat.com>,
Thomas Huth <thuth@redhat.com>,
Laurent Vivier <lvivier@redhat.com>
Cc: qemu-devel@nongnu.org, "Thomas Weißschuh" <thomas@t-8ch.de>
Subject: [PATCH RFC 0/3] hw/misc/pvpanic: add support for normal shutdowns
Date: Sat, 04 Nov 2023 12:25:21 +0100 [thread overview]
Message-ID: <20231104-pvpanic-shutdown-v1-0-02353157891b@t-8ch.de> (raw)
Shutdown requests are normally hardware dependent.
By extending pvpanic to also handle shutdown requests, guests can
submit such requests with an easily implementable and cross-platform
mechanism.
The background is the usage of minimal Linux kernels with different
architectures for testing purposes.
Poweroff support varies highly per architecture and requires a bunch of
code to be compiled to work.
pvpanic on the other hand is very small and uniform.
I sent an RFC[0] for this before to qemu-devel and lkml which didn't
generate feedback, so let's discuss the concrete proposal.
Patch 1 and 2 are general cleanups, that seems useful even without this
proposal being implemented.
I'll send the corresponding Linux patch to LKML.
[0] https://lore.kernel.org/all/984794aa-4af0-4c68-a74e-7420ec3151a5@t-8ch.de/
Signed-off-by: Thomas Weißschuh <thomas@t-8ch.de>
---
Thomas Weißschuh (3):
hw/misc/pvpanic: centralize definition of supported events
tests/qtest/pvanic: use centralized definition of supported events
hw/misc/pvpanic: add support for normal shutdowns
docs/specs/pvpanic.rst | 2 ++
hw/misc/pvpanic-isa.c | 3 +--
hw/misc/pvpanic-pci.c | 3 +--
hw/misc/pvpanic.c | 8 ++++++--
include/hw/misc/pvpanic.h | 2 ++
include/standard-headers/linux/pvpanic.h | 1 +
tests/qtest/pvpanic-pci-test.c | 5 +++--
tests/qtest/pvpanic-test.c | 5 +++--
8 files changed, 19 insertions(+), 10 deletions(-)
---
base-commit: d762bf97931b58839316b68a570eecc6143c9e3e
change-id: 20231104-pvpanic-shutdown-02e4b4cb4949
Best regards,
--
Thomas Weißschuh <thomas@t-8ch.de>
next reply other threads:[~2023-11-04 11:26 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-11-04 11:25 Thomas Weißschuh [this message]
2023-11-04 11:25 ` [PATCH RFC 1/3] hw/misc/pvpanic: centralize definition of supported events Thomas Weißschuh
2023-11-04 11:25 ` [PATCH RFC 2/3] tests/qtest/pvanic: use centralized " Thomas Weißschuh
2023-11-07 8:55 ` Thomas Huth
2023-11-07 10:16 ` Marc-André Lureau
2023-11-04 11:25 ` [PATCH RFC 3/3] hw/misc/pvpanic: add support for normal shutdowns Thomas Weißschuh
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