qemu/hw/i386/kvm
David Woodhouse be15509882 hw/xen: Clean up event channel 'type_val' handling to use union
A previous implementation of this stuff used a 64-bit field for all of
the port information (vcpu/type/type_val) and did atomic exchanges on
them. When I implemented that in Qemu I regretted my life choices and
just kept it simple with locking instead.

So there's no need for the XenEvtchnPort to be so simplistic. We can
use a union for the pirq/virq/interdomain information, which lets us
keep a separate bit for the 'remote domain' in interdomain ports. A
single bit is enough since the only possible targets are loopback or
qemu itself.

So now we can ditch PORT_INFO_TYPEVAL_REMOTE_QEMU and the horrid
manual masking, although the in-memory representation is identical
so there's no change in the saved state ABI.

Signed-off-by: David Woodhouse <dwmw@amazon.co.uk>
Reviewed-by: Paul Durrant <paul@xen.org>
2023-11-07 08:54:20 +00:00
..
apic.c i386/kvm: The value passed to strerror should be positive 2021-06-05 21:01:17 +02:00
clock.c kvm: i386: require KVM_CAP_ADJUST_CLOCK 2023-10-25 19:53:38 +02:00
clock.h hw/i386: Rename 'hw/kvm/clock.h' -> 'hw/i386/kvm/clock.h' 2023-08-31 19:47:43 +02:00
i8254.c kvm: i8254: require KVM_CAP_PIT2 and KVM_CAP_PIT_STATE2 2023-10-25 19:53:38 +02:00
i8259.c hw/intc: Extract the IRQ counting functions into a separate file 2023-01-13 16:22:57 +01:00
ioapic.c sysemu/kvm: Restrict kvm_pc_setup_irq_routing() to x86 targets 2023-09-07 13:32:37 +02:00
meson.build meson: Replace CONFIG_SOFTMMU -> CONFIG_SYSTEM_ONLY 2023-06-20 10:01:30 +02:00
trace-events hw/xen: Add xenstore wire implementation and implementation stubs 2023-03-07 17:04:30 +00:00
trace.h hw/xen: Implement emulated PIRQ hypercall support 2023-03-01 09:09:01 +00:00
xen-stubs.c hw/xen: Support MSI mapping to PIRQ 2023-03-01 09:09:22 +00:00
xen_evtchn.c hw/xen: Clean up event channel 'type_val' handling to use union 2023-11-07 08:54:20 +00:00
xen_evtchn.h hw/xen: Simplify emulated Xen platform init 2023-06-07 15:07:10 +01:00
xen_gnttab.c hw/xen: don't clear map_track[] in xen_gnttab_reset() 2023-11-06 10:03:45 +00:00
xen_gnttab.h hw/xen: Implement soft reset for emulated gnttab 2023-03-07 17:04:30 +00:00
xen_overlay.c hw/xen: Support mapping grant frames 2023-03-01 09:07:52 +00:00
xen_overlay.h hw/xen: Support mapping grant frames 2023-03-01 09:07:52 +00:00
xen_xenstore.c hw/xen: fix XenStore watch delivery to guest 2023-11-06 10:03:45 +00:00
xen_xenstore.h hw/xen: Add xen_xenstore device for xenstore emulation 2023-03-01 09:08:26 +00:00
xenstore_impl.c i386: spelling fixes 2023-09-20 07:54:34 +03:00
xenstore_impl.h hw/xen: Add xenstore operations to allow redirection to internal emulation 2023-03-07 17:04:30 +00:00