diff options
| author | Lukas Stockner <lstockner@genesiscloud.com> | 2024-02-15 02:23:26 +0100 |
|---|---|---|
| committer | Michael S. Tsirkin <mst@redhat.com> | 2024-03-12 17:56:55 -0400 |
| commit | c08da86dc412cd44039bc78df02227578bc06268 (patch) | |
| tree | 15ebe027e6b73719009fc52c3e830735315cb41b /hw/pci | |
| parent | 52767e1063beaa17d59c739efd0b9c342923929d (diff) | |
| download | qemu-c08da86dc412cd44039bc78df02227578bc06268.zip qemu-c08da86dc412cd44039bc78df02227578bc06268.tar.gz qemu-c08da86dc412cd44039bc78df02227578bc06268.tar.bz2 | |
pcie: Support PCIe Gen5/Gen6 link speeds
This patch extends the PCIe link speed option so that slots can be
configured as supporting 32GT/s (Gen5) or 64GT/s (Gen5) speeds.
This is as simple as setting the appropriate bit in LnkCap2 and
the appropriate value in LnkCap and LnkCtl2.
Signed-off-by: Lukas Stockner <lstockner@genesiscloud.com>
Message-Id: <20240215012326.3272366-1-lstockner@genesiscloud.com>
Reviewed-by: Manos Pitsidianakis <manos.pitsidianakis@linaro.org>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Diffstat (limited to 'hw/pci')
| -rw-r--r-- | hw/pci/pcie.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/hw/pci/pcie.c b/hw/pci/pcie.c index 6db0cf6..0b4817e 100644 --- a/hw/pci/pcie.c +++ b/hw/pci/pcie.c @@ -153,6 +153,14 @@ static void pcie_cap_fill_slot_lnk(PCIDevice *dev) pci_long_test_and_set_mask(exp_cap + PCI_EXP_LNKCAP2, PCI_EXP_LNKCAP2_SLS_16_0GB); } + if (s->speed > QEMU_PCI_EXP_LNK_16GT) { + pci_long_test_and_set_mask(exp_cap + PCI_EXP_LNKCAP2, + PCI_EXP_LNKCAP2_SLS_32_0GB); + } + if (s->speed > QEMU_PCI_EXP_LNK_32GT) { + pci_long_test_and_set_mask(exp_cap + PCI_EXP_LNKCAP2, + PCI_EXP_LNKCAP2_SLS_64_0GB); + } } } |