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[Qemu-devel] [PATCH v3 0/9] ahci: enable migration
From: |
John Snow |
Subject: |
[Qemu-devel] [PATCH v3 0/9] ahci: enable migration |
Date: |
Thu, 30 Apr 2015 14:07:13 -0400 |
The day we all feared is here, and I am proposing we allow the migration
of the AHCI device tentatively for the 2.4 development window.
There are some more NCQ migration tests are needed, but I felt that it was
important to get migration enabled as close to the start of the 2.4
development window as possible.
If the NCQ patches don't pan out by the time the 2.4 freeze occurs, we can
revert the migration boolean and add a conditional around the ahci tests
that rely on the migration feature being enabled.
I am justifying this checkin based on a series of ping-pong
migration tests I ran under heavy load (using google's stressapptest)
and saw over 300 successful migrations without a single failure.
This series does a few things:
(1) Add migration facilities to libqos
(2) Enable AHCI and ICH9 migration
(3) Add a series of migration tests to ahci-test
v3:
- Rebase and resend for 2.4.
- Minor style guide fix.
v2:
- Added a URI parameter to the migrate() helper
- Adjust ahci_shutdown to set qtest context for itself
- Make sure verify() is part of ahci_migrate() and redundant
calls are eliminated
- Add new helpers to make tests with blkdebug injections more
succint
- Change the flush migrate test to not load the blkdebug rule
on the destination host
- Modify the migrate() function so that it does not poll the
VM for migration status if it can rely on RESUME events.
- New patch: Repair the ahci_command_set_offset helper.
- New test: Test DMA halt and resume.
- New test: Test DMA halt, migrate, and resume.
==
For convenience, this branch is available at:
https://github.com/jnsnow/qemu.git branch ahci-migration-test
https://github.com/jnsnow/qemu/tree/ahci-migration-test
This version is tagged ahci-migration-test-v3:
https://github.com/jnsnow/qemu/releases/tag/ahci-migration-test-v3
==
John Snow (9):
libqos/ahci: Add halted command helpers
libqos/ahci: Fix sector set method
libqos: Add migration helpers
ich9/ahci: Enable Migration
qtest/ahci: Add migration test
qtest/ahci: add migrate dma test
qtest/ahci: add flush migrate test
qtest/ahci: add halted dma test
qtest/ahci: add migrate halted dma test
hw/ide/ahci.c | 1 -
hw/ide/ich.c | 1 -
tests/ahci-test.c | 318 +++++++++++++++++++++++++++++++++++++++++++++++++-
tests/libqos/ahci.c | 34 +++++-
tests/libqos/ahci.h | 3 +
tests/libqos/libqos.c | 84 +++++++++++++
tests/libqos/libqos.h | 2 +
tests/libqos/malloc.c | 74 +++++++++---
tests/libqos/malloc.h | 1 +
9 files changed, 496 insertions(+), 22 deletions(-)
--
2.1.0
- [Qemu-devel] [PATCH v3 0/9] ahci: enable migration,
John Snow <=
- [Qemu-devel] [PATCH v3 2/9] libqos/ahci: Fix sector set method, John Snow, 2015/04/30
- [Qemu-devel] [PATCH v3 1/9] libqos/ahci: Add halted command helpers, John Snow, 2015/04/30
- [Qemu-devel] [PATCH v3 4/9] ich9/ahci: Enable Migration, John Snow, 2015/04/30
- [Qemu-devel] [PATCH v3 3/9] libqos: Add migration helpers, John Snow, 2015/04/30
- [Qemu-devel] [PATCH v3 9/9] qtest/ahci: add migrate halted dma test, John Snow, 2015/04/30
- [Qemu-devel] [PATCH v3 7/9] qtest/ahci: add flush migrate test, John Snow, 2015/04/30
- [Qemu-devel] [PATCH v3 5/9] qtest/ahci: Add migration test, John Snow, 2015/04/30
- [Qemu-devel] [PATCH v3 8/9] qtest/ahci: add halted dma test, John Snow, 2015/04/30
- [Qemu-devel] [PATCH v3 6/9] qtest/ahci: add migrate dma test, John Snow, 2015/04/30