[PATCH v2 0/6] add post parse pSeries mem align, when ABI_UPDATE

Daniel Henrique Barboza danielhb413 at gmail.com
Tue Dec 1 10:19:29 UTC 2020


Ping

On 11/18/20 4:58 PM, Daniel Henrique Barboza wrote:
> Hi,
> 
> This is a follow up of [1] after really comprehending what I
> was messing with and what I couldn't do. This version has a
> shorter scope, only pSeries guests are being taken care of.
> I can send a follow up to handle x86 as well depending on the
> popularity of this work.
> 
> Patches 1 and 2 moves the existing qemuDomainAlignMemorySizes()
> from qemu_command.c to qemuProcessPrepareDomain(). They are
> not related/tied to everything else done here and can be pushed
> independently if needed.
> 
> Patches 3, 4 and 5 are reworking the existing code to be consistent
> to our prerrogative of not aligning memory when migrating or
> 'snapshotting'. No significant behavioral change is done.
> 
> Patch 6 is where the bacon is. For new ppc64 guests, without ABI
> breakage, the mem alignment that are overshooting the intended
> initial memory is fixed.
> 
> Test cases were added to help me diagnose and assert what I was
> changing and what would remain untouched.
> 
> [1] https://www.redhat.com/archives/libvir-list/2020-November/msg00544.html
> 
> 
> Daniel Henrique Barboza (6):
>    qemu_process.c: check migrateURI when setting
>      VIR_QEMU_PROCESS_START_NEW
>    qemu: move memory size align to qemuProcessPrepareDomain()
>    Revert "domain_conf.c: auto-align pSeries NVDIMM in
>      virDomainMemoryDefPostParse()"
>    qemuxml2xmltest.c: honor ARG_PARSEFLAGS
>    qemu_domain.c: post parse pSeries NVDIMM align with PARSE_ABI_UPDATE
>    qemu_domain.c: align all pSeries mem modules when PARSE_ABI_UPDATE
> 
>   src/conf/domain_conf.c                        | 23 +--------
>   src/qemu/qemu_command.c                       |  3 --
>   src/qemu/qemu_domain.c                        | 39 ++++++++++++++-
>   src/qemu/qemu_process.c                       | 11 +++-
>   ...memory-hotplug-nvdimm-ppc64-abi-update.xml | 50 +++++++++++++++++++
>   ...emory-hotplug-ppc64-nonuma-abi-update.args | 34 +++++++++++++
>   ...memory-hotplug-ppc64-nonuma-abi-update.xml | 32 ++++++++++++
>   tests/qemuxml2argvtest.c                      |  7 +++
>   ...memory-hotplug-nvdimm-ppc64-abi-update.xml | 50 +++++++++++++++++++
>   .../memory-hotplug-nvdimm-ppc64.xml           |  2 +-
>   ...memory-hotplug-ppc64-nonuma-abi-update.xml | 45 +++++++++++++++++
>   tests/qemuxml2xmltest.c                       | 20 +++++++-
>   12 files changed, 286 insertions(+), 30 deletions(-)
>   create mode 100644 tests/qemuxml2argvdata/memory-hotplug-nvdimm-ppc64-abi-update.xml
>   create mode 100644 tests/qemuxml2argvdata/memory-hotplug-ppc64-nonuma-abi-update.args
>   create mode 100644 tests/qemuxml2argvdata/memory-hotplug-ppc64-nonuma-abi-update.xml
>   create mode 100644 tests/qemuxml2xmloutdata/memory-hotplug-nvdimm-ppc64-abi-update.xml
>   create mode 100644 tests/qemuxml2xmloutdata/memory-hotplug-ppc64-nonuma-abi-update.xml
> 




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