Re: [Qemu-devel] [PATCH V5 0/7] pxb: fix 64-bit MMIO allocation

["Michael S. Tsirkin" <mst@redhat.com>]

On Sun, Jul 17, 2016 at 07:53:07PM +0300, Marcel Apfelbaum wrote:
> 
> v4 -> v5:
>   Addressed the pull request issues: (Peter Maydell)
>   See: https://lists.gnu.org/archive/html/qemu-devel/2016-07/msg00882.html
>   - cland warning -> "hw/pci/pci.c:196:23: runtime error: shift exponent -1 is negative":
>     The PCIe Root port was not initialized properly, the interrupt pin was left 0. This
>     is a long standing issue exposed by the new test. (Patch 1/7)
>   - 'make check' fails on 32-bit:
>      Fix it by changing the ivshmem mem size from 4G
>      to 1G, since 4G is not a valid value on 32-bit archs. (Patch 2/7)
>      (4G is truncated to 0 on 32-bit systems)
>   - Rebased on mst's pci branch.
>   Since all the new changes are not related to the series, I kept the existing
>   "Reviewed-by"/"Tested-by" signatures.

Applied, but dropped tests for now - from experience they are too likely
to break on weird platforms.
Pls post new tests after 2.7.

Also, I would really like to see options to speed tests up.
How about running them under kvm?
There are a couple of minor acpi differences when running with kvm,
we'll need to white-list them in some way.



> v3 -> v4:
>  Addressed Igor's comments (thanks for the productive review!)
>  - Split pxb test patch (previously patch 3/3) into the test itself (patch 1/6) and the blobs (patch 6/6).
>  - New patch declaring pxb/pxb-pxie as not hot-pluggable.
>     - Note that it does not solve the DSDT issue, but it is a prerequisite for the next patch.
>  - New patch solving the DSDT issue spotted by Igor.
>      - Using V=1 DIFF=diff make check does make it easier to review the ACPI changes, thanks.
>  - Patches 4 and 5 untouched (previously patches 1/3 and 2/3) 
> 
> v2 -> v3:
>  - split original series "pci: better support for 64-bit MMIO allocation" into 2 series:
>     - this is the first part dealing with correct 64-bit MMIO ACPI computation
>     - the second one will include 64-bit MMIO reservation for PCI hotplug
>  - Add pxb/pxb-pcie tests (Igor) - See diffs below (*)
>  - Re-based on latest master.
>    
> v1 -> v2:
>  - resolved some styling issues (Laszlo)
>  - rebase on latest master (Laszlo)
> 
> 
> 
> 64-bit BARs allocations fix for devices behind PXBs/PXB-PCIEs.
> 
> In build_crs() the calculation and merging of the ranges already happens
> in 64-bit, but the entry boundaries are silently truncated to 32-bit in the
> call to aml_dword_memory(). Fix it by handling the 64-bit MMIO ranges separately.
> 
> 
> Thank you,
> Marcel
> 
> Marcel Apfelbaum (7):
>   hw/pcie-root-port: Fix PCIe root port initialization
>   tests/acpi: add pxb/pxb-pcie tests
>   hw/pxb: declare pxb devices as not hot-pluggable
>   hw/acpi: fix a DSDT table issue when a pxb is present.
>   acpi: refactor pxb crs computation
>   hw/apci: handle 64-bit MMIO regions correctly
>   tests/acpi: Add pxb/pxb-pcie tests blobs
> 
>  hw/i386/acpi-build.c                   | 131 ++++++++++++++++++++++++---------
>  hw/pci-bridge/ioh3420.c                |   1 +
>  hw/pci-bridge/pci_expander_bridge.c    |   2 +
>  tests/acpi-test-data/pc/DSDT.pxb       | Bin 0 -> 6286 bytes
>  tests/acpi-test-data/q35/DSDT.pxb_pcie | Bin 0 -> 9098 bytes
>  tests/bios-tables-test.c               |  37 ++++++++++
>  6 files changed, 135 insertions(+), 36 deletions(-)
>  create mode 100644 tests/acpi-test-data/pc/DSDT.pxb
>  create mode 100644 tests/acpi-test-data/q35/DSDT.pxb_pcie
> 
> -- 
> 2.4.3