On Tue, 04 Dec 2018 09:27:28 -0700
Alex Williamson <alex.william...@redhat.com> wrote:
> Change the default speed and width for new machine types to the
> fastest and widest currently supported. This should be compatible to
> the PCIe 4.0 spec. Pre-QEMU-4.0 machine types remain at 2.5GT/s, x1
> width.
>
> Cc: Michael S. Tsirkin <m...@redhat.com>
> Cc: Marcel Apfelbaum <marcel.apfelb...@gmail.com>
> Signed-off-by: Alex Williamson <alex.william...@redhat.com>
> ---
> hw/pci-bridge/gen_pcie_root_port.c | 4 ++--
> include/hw/compat.h | 10 +++++++++-
> 2 files changed, 11 insertions(+), 3 deletions(-)
>
> diff --git a/hw/pci-bridge/gen_pcie_root_port.c
> b/hw/pci-bridge/gen_pcie_root_port.c
> index ca5418a89dd2..9766edb44596 100644
> --- a/hw/pci-bridge/gen_pcie_root_port.c
> +++ b/hw/pci-bridge/gen_pcie_root_port.c
> @@ -125,9 +125,9 @@ static Property gen_rp_props[] = {
> DEFINE_PROP_SIZE("pref64-reserve", GenPCIERootPort,
> res_reserve.mem_pref_64, -1),
> DEFINE_PROP_PCIE_LINK_SPEED("x-speed", PCIESlot,
> - speed, PCIE_LINK_SPEED_2_5),
> + speed, PCIE_LINK_SPEED_16),
> DEFINE_PROP_PCIE_LINK_WIDTH("x-width", PCIESlot,
> - width, PCIE_LINK_WIDTH_1),
> + width, PCIE_LINK_WIDTH_32),
> DEFINE_PROP_END_OF_LIST()
> };
>
> diff --git a/include/hw/compat.h b/include/hw/compat.h
> index 70958328fe7a..702cc62277db 100644
> --- a/include/hw/compat.h
> +++ b/include/hw/compat.h
> @@ -2,7 +2,15 @@
> #define HW_COMPAT_H
>
> #define HW_COMPAT_3_1 \
> - /* empty */
> + {\
> + .driver = "pcie-root-port",\
> + .property = "speed",\
> + .value = "2_5",\
> + },{\
> + .driver = "pcie-root-port",\
> + .property = "width",\
> + .value = "1",\
> + },
Whoops, these should be x-speed and x-width too. Will correct. Thanks,
Alex
> #define HW_COMPAT_3_0 \
> /* empty */
>
