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[PULL 20/62] i386/xen: implement HYPERVISOR_vcpu_op
From: |
Paolo Bonzini |
Subject: |
[PULL 20/62] i386/xen: implement HYPERVISOR_vcpu_op |
Date: |
Thu, 2 Mar 2023 13:29:47 +0100 |
From: Joao Martins <joao.m.martins@oracle.com>
This is simply when guest tries to register a vcpu_info
and since vcpu_info placement is optional in the minimum ABI
therefore we can just fail with -ENOSYS
Signed-off-by: Joao Martins <joao.m.martins@oracle.com>
Signed-off-by: David Woodhouse <dwmw@amazon.co.uk>
Reviewed-by: Paul Durrant <paul@xen.org>
---
target/i386/kvm/xen-emu.c | 25 +++++++++++++++++++++++++
1 file changed, 25 insertions(+)
diff --git a/target/i386/kvm/xen-emu.c b/target/i386/kvm/xen-emu.c
index 4002b1b797cb..e5ae0a9a386d 100644
--- a/target/i386/kvm/xen-emu.c
+++ b/target/i386/kvm/xen-emu.c
@@ -27,6 +27,7 @@
#include "hw/xen/interface/sched.h"
#include "hw/xen/interface/memory.h"
#include "hw/xen/interface/hvm/hvm_op.h"
+#include "hw/xen/interface/vcpu.h"
#include "xen-compat.h"
@@ -363,6 +364,25 @@ static bool kvm_xen_hcall_hvm_op(struct kvm_xen_exit
*exit, X86CPU *cpu,
}
}
+static bool kvm_xen_hcall_vcpu_op(struct kvm_xen_exit *exit, X86CPU *cpu,
+ int cmd, int vcpu_id, uint64_t arg)
+{
+ int err;
+
+ switch (cmd) {
+ case VCPUOP_register_vcpu_info:
+ /* no vcpu info placement for now */
+ err = -ENOSYS;
+ break;
+
+ default:
+ return false;
+ }
+
+ exit->u.hcall.result = err;
+ return true;
+}
+
int kvm_xen_soft_reset(void)
{
int err;
@@ -464,6 +484,11 @@ 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_vcpu_op:
+ return kvm_xen_hcall_vcpu_op(exit, cpu,
+ exit->u.hcall.params[0],
+ exit->u.hcall.params[1],
+ exit->u.hcall.params[2]);
case __HYPERVISOR_hvm_op:
return kvm_xen_hcall_hvm_op(exit, cpu, exit->u.hcall.params[0],
exit->u.hcall.params[1]);
--
2.39.1
- [PULL 12/62] i386/xen: Implement SCHEDOP_poll and SCHEDOP_yield, (continued)
- [PULL 12/62] i386/xen: Implement SCHEDOP_poll and SCHEDOP_yield, Paolo Bonzini, 2023/03/02
- [PULL 13/62] hw/xen: Add xen_overlay device for emulating shared xenheap pages, Paolo Bonzini, 2023/03/02
- [PULL 15/62] i386/xen: add pc_machine_kvm_type to initialize XEN_EMULATE mode, Paolo Bonzini, 2023/03/02
- [PULL 14/62] xen: Permit --xen-domid argument when accel is KVM, Paolo Bonzini, 2023/03/02
- [PULL 16/62] i386/xen: manage and save/restore Xen guest long_mode setting, Paolo Bonzini, 2023/03/02
- [PULL 19/62] i386/xen: implement HYPERVISOR_hvm_op, Paolo Bonzini, 2023/03/02
- [PULL 21/62] i386/xen: handle VCPUOP_register_vcpu_info, Paolo Bonzini, 2023/03/02
- [PULL 25/62] i386/xen: implement HVMOP_set_evtchn_upcall_vector, Paolo Bonzini, 2023/03/02
- [PULL 26/62] i386/xen: implement HVMOP_set_param, Paolo Bonzini, 2023/03/02
- [PULL 18/62] i386/xen: implement XENMEM_add_to_physmap_batch, Paolo Bonzini, 2023/03/02
- [PULL 20/62] i386/xen: implement HYPERVISOR_vcpu_op,
Paolo Bonzini <=
- [PULL 17/62] i386/xen: implement HYPERVISOR_memory_op, Paolo Bonzini, 2023/03/02
- [PULL 36/62] hw/xen: Implement EVTCHNOP_bind_interdomain, Paolo Bonzini, 2023/03/02
- [PULL 32/62] hw/xen: Implement EVTCHNOP_bind_virq, Paolo Bonzini, 2023/03/02
- [PULL 27/62] hw/xen: Add xen_evtchn device for event channel emulation, Paolo Bonzini, 2023/03/02
- [PULL 28/62] i386/xen: Add support for Xen event channel delivery to vCPU, Paolo Bonzini, 2023/03/02
- [PULL 31/62] hw/xen: Implement EVTCHNOP_unmask, Paolo Bonzini, 2023/03/02
- [PULL 38/62] hw/xen: Implement EVTCHNOP_reset, Paolo Bonzini, 2023/03/02
- [PULL 39/62] i386/xen: add monitor commands to test event injection, Paolo Bonzini, 2023/03/02
- [PULL 58/62] kvm/i386: Add xen-evtchn-max-pirq property, Paolo Bonzini, 2023/03/02
- [PULL 29/62] hw/xen: Implement EVTCHNOP_status, Paolo Bonzini, 2023/03/02