On a Wednesday in 2020, Julia Suvorova wrote:
Make hot-plug/hot-unplug on PCIe Root Ports optional to allow libvirt manage it and restrict unplug for the whole machine. This is going to prevent user-initiated unplug in guests (Windows mostly). Hotplug is enabled by default. Usage: -device pcie-root-port,hotplug=off,...If you want to disable hot-unplug on some downstream ports of one switch, disable hot-unplug on PCIe Root Port connected to the upstream port as well as on the selected downstream ports. Discussion related: https://lists.gnu.org/archive/html/qemu-devel/2020-02/msg00530.html Signed-off-by: Julia Suvorova <jus...@redhat.com> --- v1: https://lists.gnu.org/archive/html/qemu-devel/2020-02/msg04868.html v2: https://lists.gnu.org/archive/html/qemu-devel/2020-02/msg05192.html * change name of the option to 'enable-hotplug' [Laine] * change order of enabling capability bits [Igor] * enable HPS bit [Igor] * add option to xio3130_downstream [Ján] v3: * change name of the option to 'hotplug'. Naming is hard! [Laine] * move property under TYPE_PCIE_SLOT [Michael] hw/pci-bridge/pcie_root_port.c | 2 +- hw/pci-bridge/xio3130_downstream.c | 2 +- hw/pci/pcie.c | 11 +++++++---- hw/pci/pcie_port.c | 1 + include/hw/pci/pcie.h | 2 +- include/hw/pci/pcie_port.h | 3 +++ 6 files changed, 14 insertions(+), 7 deletions(-)
Reviewed-by: Ján Tomko <jto...@redhat.com> Jano
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