[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
[RFC PATCH v4 24/47] i386/xen: implement HYPERVISOR_event_channel_op
From: |
David Woodhouse |
Subject: |
[RFC PATCH v4 24/47] i386/xen: implement HYPERVISOR_event_channel_op |
Date: |
Wed, 21 Dec 2022 01:06:00 +0000 |
From: Joao Martins <joao.m.martins@oracle.com>
Additionally set XEN_INTERFACE_VERSION to most recent in order to
exercise the "new" event_channel_op.
Signed-off-by: Joao Martins <joao.m.martins@oracle.com>
[dwmw2: Ditch event_channel_op_compat which was never available to HVM guests]
Signed-off-by: David Woodhouse <dwmw@amazon.co.uk>
---
target/i386/kvm/xen-emu.c | 22 ++++++++++++++++++++++
1 file changed, 22 insertions(+)
diff --git a/target/i386/kvm/xen-emu.c b/target/i386/kvm/xen-emu.c
index 6521df0461..9cc939b41e 100644
--- a/target/i386/kvm/xen-emu.c
+++ b/target/i386/kvm/xen-emu.c
@@ -29,6 +29,7 @@
#include "standard-headers/xen/memory.h"
#include "standard-headers/xen/hvm/hvm_op.h"
#include "standard-headers/xen/vcpu.h"
+#include "standard-headers/xen/event_channel.h"
#include "xen-compat.h"
@@ -587,6 +588,24 @@ static bool kvm_xen_hcall_vcpu_op(struct kvm_xen_exit
*exit, X86CPU *cpu,
return true;
}
+static bool kvm_xen_hcall_evtchn_op(struct kvm_xen_exit *exit,
+ int cmd, uint64_t arg)
+{
+ int err = -ENOSYS;
+
+ switch (cmd) {
+ case EVTCHNOP_init_control:
+ err = -ENOSYS;
+ break;
+
+ default:
+ return false;
+ }
+
+ exit->u.hcall.result = err;
+ return true;
+}
+
static int kvm_xen_soft_reset(void)
{
CPUState *cpu;
@@ -686,6 +705,9 @@ static bool do_kvm_xen_handle_exit(X86CPU *cpu, struct
kvm_xen_exit *exit)
case __HYPERVISOR_sched_op:
return kvm_xen_hcall_sched_op(exit, cpu, exit->u.hcall.params[0],
exit->u.hcall.params[1]);
+ case __HYPERVISOR_event_channel_op:
+ return kvm_xen_hcall_evtchn_op(exit, exit->u.hcall.params[0],
+ exit->u.hcall.params[1]);
case __HYPERVISOR_vcpu_op:
return kvm_xen_hcall_vcpu_op(exit, cpu,
exit->u.hcall.params[0],
--
2.35.3
- [RFC PATCH v4 01/47] Xen HVM support under KVM, David Woodhouse, 2022/12/20
- [RFC PATCH v4 15/47] i386/xen: add pc_machine_kvm_type to initialize XEN_EMULATE mode, David Woodhouse, 2022/12/20
- [RFC PATCH v4 19/47] i386/xen: implement HYPERVISOR_hvm_op, David Woodhouse, 2022/12/20
- [RFC PATCH v4 11/47] i386/xen: implement HYPERVISOR_xen_version, David Woodhouse, 2022/12/20
- [RFC PATCH v4 44/47] hw/xen: Support mapping grant frames, David Woodhouse, 2022/12/20
- [RFC PATCH v4 24/47] i386/xen: implement HYPERVISOR_event_channel_op,
David Woodhouse <=
- [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