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[PATCH v15 26/60] i386/xen: implement HVMOP_set_param
From: |
David Woodhouse |
Subject: |
[PATCH v15 26/60] i386/xen: implement HVMOP_set_param |
Date: |
Wed, 1 Mar 2023 13:51:49 +0000 |
From: Ankur Arora <ankur.a.arora@oracle.com>
This is the hook for adding the HVM_PARAM_CALLBACK_IRQ parameter in a
subsequent commit.
Signed-off-by: Ankur Arora <ankur.a.arora@oracle.com>
Signed-off-by: Joao Martins <joao.m.martins@oracle.com>
[dwmw2: Split out from another commit]
Signed-off-by: David Woodhouse <dwmw@amazon.co.uk>
Reviewed-by: Paul Durrant <paul@xen.org>
---
target/i386/kvm/xen-emu.c | 33 +++++++++++++++++++++++++++++++++
1 file changed, 33 insertions(+)
diff --git a/target/i386/kvm/xen-emu.c b/target/i386/kvm/xen-emu.c
index e9a4422d93..ce858ac63c 100644
--- a/target/i386/kvm/xen-emu.c
+++ b/target/i386/kvm/xen-emu.c
@@ -489,6 +489,36 @@ static bool kvm_xen_hcall_memory_op(struct kvm_xen_exit
*exit, X86CPU *cpu,
return true;
}
+static bool handle_set_param(struct kvm_xen_exit *exit, X86CPU *cpu,
+ uint64_t arg)
+{
+ CPUState *cs = CPU(cpu);
+ struct xen_hvm_param hp;
+ int err = 0;
+
+ /* No need for 32/64 compat handling */
+ qemu_build_assert(sizeof(hp) == 16);
+
+ if (kvm_copy_from_gva(cs, arg, &hp, sizeof(hp))) {
+ err = -EFAULT;
+ goto out;
+ }
+
+ if (hp.domid != DOMID_SELF && hp.domid != xen_domid) {
+ err = -ESRCH;
+ goto out;
+ }
+
+ switch (hp.index) {
+ default:
+ return false;
+ }
+
+out:
+ exit->u.hcall.result = err;
+ return true;
+}
+
static int kvm_xen_hcall_evtchn_upcall_vector(struct kvm_xen_exit *exit,
X86CPU *cpu, uint64_t arg)
{
@@ -530,6 +560,9 @@ static bool kvm_xen_hcall_hvm_op(struct kvm_xen_exit *exit,
X86CPU *cpu,
ret = -ENOSYS;
break;
+ case HVMOP_set_param:
+ return handle_set_param(exit, cpu, arg);
+
default:
return false;
}
--
2.39.0
- [PATCH v15 43/60] hw/xen: Add xen_gnttab device for grant table emulation, (continued)
- [PATCH v15 43/60] hw/xen: Add xen_gnttab device for grant table emulation, David Woodhouse, 2023/03/01
- [PATCH v15 29/60] hw/xen: Implement EVTCHNOP_status, David Woodhouse, 2023/03/01
- [PATCH v15 36/60] hw/xen: Implement EVTCHNOP_bind_interdomain, David Woodhouse, 2023/03/01
- [PATCH v15 27/60] hw/xen: Add xen_evtchn device for event channel emulation, David Woodhouse, 2023/03/01
- [PATCH v15 46/60] hw/xen: Implement GNTTABOP_query_size, David Woodhouse, 2023/03/01
- [PATCH v15 31/60] hw/xen: Implement EVTCHNOP_unmask, David Woodhouse, 2023/03/01
- [PATCH v15 23/60] i386/xen: handle VCPUOP_register_runstate_memory_area, David Woodhouse, 2023/03/01
- [PATCH v15 33/60] hw/xen: Implement EVTCHNOP_bind_ipi, David Woodhouse, 2023/03/01
- [PATCH v15 60/60] hw/xen: Subsume xen_be_register_common() into xen_be_init(), David Woodhouse, 2023/03/01
- [PATCH v15 11/60] i386/xen: implement HYPERVISOR_sched_op, SCHEDOP_shutdown, David Woodhouse, 2023/03/01
- [PATCH v15 26/60] i386/xen: implement HVMOP_set_param,
David Woodhouse <=
- [PATCH v15 14/60] xen: Permit --xen-domid argument when accel is KVM, David Woodhouse, 2023/03/01
- [PATCH v15 05/60] i386/kvm: handle Xen HVM cpuid leaves, David Woodhouse, 2023/03/01
- [PATCH v15 18/60] i386/xen: implement XENMEM_add_to_physmap_batch, David Woodhouse, 2023/03/01
- [PATCH v15 53/60] hw/xen: Automatically add xen-platform PCI device for emulated Xen guests, David Woodhouse, 2023/03/01
- [PATCH v15 02/60] xen: add CONFIG_XEN_BUS and CONFIG_XEN_EMU options for Xen emulation, David Woodhouse, 2023/03/01
- [PATCH v15 44/60] hw/xen: Support mapping grant frames, David Woodhouse, 2023/03/01
- [PATCH v15 38/60] hw/xen: Implement EVTCHNOP_reset, David Woodhouse, 2023/03/01
- [PATCH v15 50/60] hw/xen: Add backend implementation of interdomain event channel support, David Woodhouse, 2023/03/01
- [PATCH v15 39/60] i386/xen: add monitor commands to test event injection, David Woodhouse, 2023/03/01
- [PATCH v15 51/60] hw/xen: Add xen_xenstore device for xenstore emulation, David Woodhouse, 2023/03/01