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[RFC PATCH v4 02/47] xen: add CONFIG_XENFV_MACHINE and CONFIG_XEN_EMU op
From: |
David Woodhouse |
Subject: |
[RFC PATCH v4 02/47] xen: add CONFIG_XENFV_MACHINE and CONFIG_XEN_EMU options for Xen emulation |
Date: |
Wed, 21 Dec 2022 01:05:38 +0000 |
From: David Woodhouse <dwmw@amazon.co.uk>
The XEN_EMU option will cover core Xen support in target/, which exists
only for x86 with KVM today but could theoretically also be implemented
on Arm/Aarch64 and with TCG or other accelerators. It will also cover
the support for architecture-independent grant table and event channel
support which will be added in hw/i386/kvm/ (on the basis that the
non-KVM support is very theoretical and making it not use KVM directly
seems like gratuitous overengineering at this point).
The XENFV_MACHINE option is for the xenfv platform support, which will
now be used both by XEN_EMU and by real Xen.
The XEN option remains dependent on the Xen runtime libraries, and covers
support for real Xen. Some code which currently resides under CONFIG_XEN
will be moving to CONFIG_XENFV_MACHINE over time.
Signed-off-by: David Woodhouse <dwmw@amazon.co.uk>
Reviewed-by: Paul Durrant <paul@xen.org>
---
hw/Kconfig | 1 +
hw/i386/Kconfig | 5 +++++
hw/xen/Kconfig | 3 +++
meson.build | 1 +
4 files changed, 10 insertions(+)
create mode 100644 hw/xen/Kconfig
diff --git a/hw/Kconfig b/hw/Kconfig
index 38233bbb0f..ba62ff6417 100644
--- a/hw/Kconfig
+++ b/hw/Kconfig
@@ -41,6 +41,7 @@ source tpm/Kconfig
source usb/Kconfig
source virtio/Kconfig
source vfio/Kconfig
+source xen/Kconfig
source watchdog/Kconfig
# arch Kconfig
diff --git a/hw/i386/Kconfig b/hw/i386/Kconfig
index d22ac4a4b9..c9fd577997 100644
--- a/hw/i386/Kconfig
+++ b/hw/i386/Kconfig
@@ -137,3 +137,8 @@ config VMPORT
config VMMOUSE
bool
depends on VMPORT
+
+config XEN_EMU
+ bool
+ default y
+ depends on KVM && (I386 || X86_64)
diff --git a/hw/xen/Kconfig b/hw/xen/Kconfig
new file mode 100644
index 0000000000..755c8b1faf
--- /dev/null
+++ b/hw/xen/Kconfig
@@ -0,0 +1,3 @@
+config XENFV_MACHINE
+ bool
+ default y if (XEN || XEN_EMU)
diff --git a/meson.build b/meson.build
index 5c6b5a1c75..9348cf572c 100644
--- a/meson.build
+++ b/meson.build
@@ -3828,6 +3828,7 @@ if have_system
if xen.found()
summary_info += {'xen ctrl version': xen.version()}
endif
+ summary_info += {'Xen emulation': config_all.has_key('CONFIG_XEN_EMU')}
endif
summary_info += {'TCG support': config_all.has_key('CONFIG_TCG')}
if config_all.has_key('CONFIG_TCG')
--
2.35.3
- [RFC PATCH v4 14/47] hw/xen: Add xen_overlay device for emulating shared xenheap pages, (continued)
- [RFC PATCH v4 14/47] hw/xen: Add xen_overlay device for emulating shared xenheap pages, David Woodhouse, 2022/12/20
- [RFC PATCH v4 41/47] hw/xen: Support HVM_PARAM_CALLBACK_TYPE_PCI_INTX callback, David Woodhouse, 2022/12/20
- [RFC PATCH v4 01/47] include: import Xen public headers to include/standard-headers/, David Woodhouse, 2022/12/20
- [RFC PATCH v4 05/47] i386/kvm: handle Xen HVM cpuid leaves, David Woodhouse, 2022/12/20
- [RFC PATCH v4 21/47] i386/xen: handle VCPUOP_register_vcpu_info, David Woodhouse, 2022/12/20
- [RFC PATCH v4 13/47] i386/xen: Implement SCHEDOP_poll and SCHEDOP_yield, David Woodhouse, 2022/12/20
- [RFC PATCH v4 12/47] i386/xen: implement HYPERVISOR_sched_op, SCHEDOP_shutdown, David Woodhouse, 2022/12/20
- [RFC PATCH v4 35/47] hw/xen: Implement EVTCHNOP_alloc_unbound, David Woodhouse, 2022/12/20
- [RFC PATCH v4 03/47] xen: Add XEN_DISABLED mode and make it default, David Woodhouse, 2022/12/20
- [RFC PATCH v4 37/47] hw/xen: Implement EVTCHNOP_bind_vcpu, David Woodhouse, 2022/12/20
- [RFC PATCH v4 02/47] xen: add CONFIG_XENFV_MACHINE and CONFIG_XEN_EMU options for Xen emulation,
David Woodhouse <=
- [RFC PATCH v4 40/47] hw/xen: Support HVM_PARAM_CALLBACK_TYPE_GSI callback, David Woodhouse, 2022/12/20
- [RFC PATCH v4 22/47] i386/xen: handle VCPUOP_register_vcpu_time_info, David Woodhouse, 2022/12/20
- [RFC PATCH v4 34/47] hw/xen: Implement EVTCHNOP_send, David Woodhouse, 2022/12/20
- [RFC PATCH v4 46/47] hw/xen: Implement GNTTABOP_query_size, David Woodhouse, 2022/12/20
- [RFC PATCH v4 20/47] i386/xen: implement HYPERVISOR_vcpu_op, David Woodhouse, 2022/12/20
- [RFC PATCH v4 31/47] hw/xen: Implement EVTCHNOP_unmask, David Woodhouse, 2022/12/20
- [RFC PATCH v4 27/47] hw/xen: Add xen_evtchn device for event channel emulation, David Woodhouse, 2022/12/20
- [RFC PATCH v4 33/47] hw/xen: Implement EVTCHNOP_bind_ipi, David Woodhouse, 2022/12/20
- [RFC PATCH v4 25/47] i386/xen: implement HVMOP_set_evtchn_upcall_vector, David Woodhouse, 2022/12/20
- [RFC PATCH v4 47/47] i386/xen: handle PV timer hypercalls, David Woodhouse, 2022/12/20