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[Qemu-devel] [PULL 17/31] pcie: Fast PCIe root ports for new machines
From: |
Michael S. Tsirkin |
Subject: |
[Qemu-devel] [PULL 17/31] pcie: Fast PCIe root ports for new machines |
Date: |
Mon, 17 Dec 2018 23:17:55 -0500 |
From: Alex Williamson <address@hidden>
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: Marcel Apfelbaum <address@hidden>
Reviewed-by: Eric Auger <address@hidden>
Signed-off-by: Alex Williamson <address@hidden>
Reviewed-by: Michael S. Tsirkin <address@hidden>
Signed-off-by: Michael S. Tsirkin <address@hidden>
---
include/hw/compat.h | 10 +++++++++-
hw/pci-bridge/gen_pcie_root_port.c | 4 ++--
2 files changed, 11 insertions(+), 3 deletions(-)
diff --git a/include/hw/compat.h b/include/hw/compat.h
index 70958328fe..3ca85b037c 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 = "x-speed",\
+ .value = "2_5",\
+ },{\
+ .driver = "pcie-root-port",\
+ .property = "x-width",\
+ .value = "1",\
+ },
#define HW_COMPAT_3_0 \
/* empty */
diff --git a/hw/pci-bridge/gen_pcie_root_port.c
b/hw/pci-bridge/gen_pcie_root_port.c
index ca5418a89d..9766edb445 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()
};
--
MST
- [Qemu-devel] [PULL 07/31] hw/smbios: Remove "smbios_ipmi.h", (continued)
- [Qemu-devel] [PULL 07/31] hw/smbios: Remove "smbios_ipmi.h", Michael S. Tsirkin, 2018/12/17
- [Qemu-devel] [PULL 08/31] hw/smbios: Move to the hw/firmware/ subdirectory, Michael S. Tsirkin, 2018/12/17
- [Qemu-devel] [PULL 09/31] hw/pci-bridge: Fix invalid free(), Michael S. Tsirkin, 2018/12/17
- [Qemu-devel] [PULL 10/31] pcie: Create enums for link speed and width, Michael S. Tsirkin, 2018/12/17
- [Qemu-devel] [PULL 13/31] pcie: Add link speed and width fields to PCIESlot, Michael S. Tsirkin, 2018/12/17
- [Qemu-devel] [PULL 11/31] pci: Sync PCIe downstream port LNKSTA on read, Michael S. Tsirkin, 2018/12/17
- [Qemu-devel] [PULL 12/31] qapi: Define PCIe link speed and width properties, Michael S. Tsirkin, 2018/12/17
- [Qemu-devel] [PULL 16/31] vfio/pci: Remove PCIe Link Status emulation, Michael S. Tsirkin, 2018/12/17
- [Qemu-devel] [PULL 15/31] pcie: Allow generic PCIe root port to specify link speed and width, Michael S. Tsirkin, 2018/12/17
- [Qemu-devel] [PULL 14/31] pcie: Fill PCIESlot link fields to support higher speeds and widths, Michael S. Tsirkin, 2018/12/17
- [Qemu-devel] [PULL 17/31] pcie: Fast PCIe root ports for new machines,
Michael S. Tsirkin <=
- [Qemu-devel] [PULL 18/31] intel_iommu: dump correct iova when failed, Michael S. Tsirkin, 2018/12/17
- [Qemu-devel] [PULL 19/31] intel_iommu: convert invalid traces into error reports, Michael S. Tsirkin, 2018/12/17
- [Qemu-devel] [PULL 20/31] intel_iommu: dma read/write draining support, Michael S. Tsirkin, 2018/12/17
- [Qemu-devel] [PULL 21/31] intel_iommu: remove "x-" prefix for "aw-bits", Michael S. Tsirkin, 2018/12/17
- [Qemu-devel] [PULL 22/31] intel_iommu: turn on IR by default, Michael S. Tsirkin, 2018/12/17
- [Qemu-devel] [PULL 25/31] hw: i386: Use correct RSDT length for checksum, Michael S. Tsirkin, 2018/12/17
- [Qemu-devel] [PULL 23/31] hw: acpi: The RSDP build API can return void, Michael S. Tsirkin, 2018/12/17
- [Qemu-devel] [PULL 26/31] hw: arm: Carry RSDP specific data through AcpiRsdpData, Michael S. Tsirkin, 2018/12/17
- [Qemu-devel] [PULL 24/31] hw: arm: acpi: Fix incorrect checksums in RSDP, Michael S. Tsirkin, 2018/12/17
- [Qemu-devel] [PULL 28/31] hw: arm: Support both legacy and current RSDP build, Michael S. Tsirkin, 2018/12/17