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[PATCH v13 53/60] hw/xen: Automatically add xen-platform PCI device for
From: |
David Woodhouse |
Subject: |
[PATCH v13 53/60] hw/xen: Automatically add xen-platform PCI device for emulated Xen guests |
Date: |
Thu, 23 Feb 2023 12:46:06 +0000 |
From: David Woodhouse <dwmw@amazon.co.uk>
It isn't strictly mandatory but Linux guests at least will only map
their grant tables over the dummy BAR that it provides, and don't have
sufficient wit to map them in any other unused part of their guest
address space. So include it by default for minimal surprise factor.
As I come to document "how to run a Xen guest in QEMU", this means one
fewer thing to tell the user about, according to the mantra of "if it
needs documenting, fix it first, then document what remains".
Signed-off-by: David Woodhouse <dwmw@amazon.co.uk>
Reviewed-by: Paul Durrant <paul@xen.org>
---
hw/i386/pc.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/hw/i386/pc.c b/hw/i386/pc.c
index a12a7a67e9..5ec3518b9e 100644
--- a/hw/i386/pc.c
+++ b/hw/i386/pc.c
@@ -1313,6 +1313,9 @@ void pc_basic_device_init(struct PCMachineState *pcms,
#ifdef CONFIG_XEN_EMU
if (xen_mode == XEN_EMULATE) {
xen_evtchn_connect_gsis(gsi);
+ if (pcms->bus) {
+ pci_create_simple(pcms->bus, -1, "xen-platform");
+ }
}
#endif
--
2.39.0
- [PATCH v13 00/60] Xen HVM support under KVM, David Woodhouse, 2023/02/23
- [PATCH v13 05/60] i386/kvm: handle Xen HVM cpuid leaves, David Woodhouse, 2023/02/23
- [PATCH v13 53/60] hw/xen: Automatically add xen-platform PCI device for emulated Xen guests,
David Woodhouse <=
- [PATCH v13 10/60] i386/xen: implement HYPERVISOR_xen_version, David Woodhouse, 2023/02/23
- [PATCH v13 47/60] i386/xen: handle PV timer hypercalls, David Woodhouse, 2023/02/23
- [PATCH v13 22/60] i386/xen: handle VCPUOP_register_vcpu_time_info, David Woodhouse, 2023/02/23
- [PATCH v13 20/60] i386/xen: implement HYPERVISOR_vcpu_op, David Woodhouse, 2023/02/23
- [PATCH v13 06/60] i386/kvm: Set Xen vCPU ID in KVM, David Woodhouse, 2023/02/23
- [PATCH v13 37/60] hw/xen: Implement EVTCHNOP_bind_vcpu, David Woodhouse, 2023/02/23
- [PATCH v13 38/60] hw/xen: Implement EVTCHNOP_reset, David Woodhouse, 2023/02/23
- [PATCH v13 30/60] hw/xen: Implement EVTCHNOP_close, David Woodhouse, 2023/02/23
- [PATCH v13 09/60] i386/xen: handle guest hypercalls, David Woodhouse, 2023/02/23
- [PATCH v13 25/60] i386/xen: implement HVMOP_set_evtchn_upcall_vector, David Woodhouse, 2023/02/23