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[Qemu-devel] Re: [PATCH v7 0/4] Inter-VM shared memory device
From: |
Cam Macdonell |
Subject: |
[Qemu-devel] Re: [PATCH v7 0/4] Inter-VM shared memory device |
Date: |
Fri, 2 Jul 2010 12:12:10 -0600 |
On Tue, Jun 15, 2010 at 2:23 PM, Cam Macdonell <address@hidden> wrote:
> Latest patch for PCI shared memory device that maps a host shared memory
> object
> to be shared between guests
>
> new in this series
>
> - replace marking memory from v6 with marking device as unmigratable
> indicating
> that it should be unplugged before migration and re-added after.
> - 'peer' case changed to require removal before migration, only 'master'
> devices can be migrated while attached.
>
> v6
> - migration support with 'master' and 'peer' roles for guest to determine
> who "owns" memory
> - modified phys_ram_dirty array for marking memory as not to be migrated
>
> v5:
> - fixed segfault for non-server case
> - code style fixes
> - removed limit on the number of guests
> - shared memory server is now in qemu.git/contrib
> - made ioeventfd setup function generic
> - removed interrupts when guest joined (let application handle it)
>
> v4:
> - moved to single Doorbell register and use datamatch to trigger different
> VMs rather than one register per eventfd
> - remove writing arbitrary values to eventfds. Only values of 1 are now
> written to ensure correct usage
>
> Cam Macdonell (4):
> Device specification for shared memory PCI device
> Add function to assign ioeventfd to MMIO.
> Support marking a device as non-migratable
> Inter-VM shared memory PCI device
>
> Makefile.target | 3 +
> docs/specs/ivshmem_device_spec.txt | 96 +++++
> hw/hw.h | 1 +
> hw/ivshmem.c | 823
> ++++++++++++++++++++++++++++++++++++
> kvm-all.c | 32 ++
> kvm.h | 1 +
> qemu-char.c | 6 +
> qemu-char.h | 3 +
> qemu-doc.texi | 43 ++
> savevm.c | 32 ++-
> 10 files changed, 1037 insertions(+), 3 deletions(-)
> create mode 100644 docs/specs/ivshmem_device_spec.txt
> create mode 100644 hw/ivshmem.c
>
>
Hi,
Are there outstanding concerns with this patchset? Can it be merged?
I can rebase if necessary.
Thanks,
Cam
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