From: David Woodhouse <dwmw2@infradead.org>
To: qemu-devel@nongnu.org
Cc: "Paolo Bonzini" <pbonzini@redhat.com>,
"Paul Durrant" <paul@xen.org>,
"Joao Martins" <joao.m.martins@oracle.com>,
"Ankur Arora" <ankur.a.arora@oracle.com>,
"Philippe Mathieu-Daudé" <philmd@linaro.org>,
"Thomas Huth" <thuth@redhat.com>,
"Alex Bennée" <alex.bennee@linaro.org>,
"Juan Quintela" <quintela@redhat.com>,
"Dr . David Alan Gilbert" <dgilbert@redhat.com>,
"Claudio Fontana" <cfontana@suse.de>,
"Julien Grall" <julien@xen.org>
Subject: [RFC PATCH v5 38/52] hw/xen: Implement EVTCHNOP_reset
Date: Fri, 30 Dec 2022 12:12:21 +0000 [thread overview]
Message-ID: <20221230121235.1282915-39-dwmw2@infradead.org> (raw)
In-Reply-To: <20221230121235.1282915-1-dwmw2@infradead.org>
From: David Woodhouse <dwmw@amazon.co.uk>
Signed-off-by: David Woodhouse <dwmw@amazon.co.uk>
---
hw/i386/kvm/xen_evtchn.c | 29 +++++++++++++++++++++++++++++
hw/i386/kvm/xen_evtchn.h | 3 +++
target/i386/kvm/xen-emu.c | 17 +++++++++++++++++
3 files changed, 49 insertions(+)
diff --git a/hw/i386/kvm/xen_evtchn.c b/hw/i386/kvm/xen_evtchn.c
index 1623922dfc..cdf7d86da8 100644
--- a/hw/i386/kvm/xen_evtchn.c
+++ b/hw/i386/kvm/xen_evtchn.c
@@ -740,6 +740,35 @@ static int close_port(XenEvtchnState *s, evtchn_port_t port)
return 0;
}
+int xen_evtchn_soft_reset(void)
+{
+ XenEvtchnState *s = xen_evtchn_singleton;
+ int i;
+
+ if (!s) {
+ return -ENOTSUP;
+ }
+
+ qemu_mutex_lock(&s->port_lock);
+
+ for (i = 0; i < s->nr_ports; i++) {
+ close_port(s, i);
+ }
+
+ qemu_mutex_unlock(&s->port_lock);
+
+ return 0;
+}
+
+int xen_evtchn_reset_op(struct evtchn_reset *reset)
+{
+ if (reset->dom != DOMID_SELF && reset->dom != xen_domid) {
+ return -ESRCH;
+ }
+
+ return xen_evtchn_soft_reset();
+}
+
int xen_evtchn_close_op(struct evtchn_close *close)
{
XenEvtchnState *s = xen_evtchn_singleton;
diff --git a/hw/i386/kvm/xen_evtchn.h b/hw/i386/kvm/xen_evtchn.h
index 486b031c82..5d3e03553f 100644
--- a/hw/i386/kvm/xen_evtchn.h
+++ b/hw/i386/kvm/xen_evtchn.h
@@ -13,6 +13,7 @@
#define QEMU_XEN_EVTCHN_H
void xen_evtchn_create(void);
+int xen_evtchn_soft_reset(void);
int xen_evtchn_set_callback_param(uint64_t param);
struct evtchn_status;
@@ -24,6 +25,7 @@ struct evtchn_send;
struct evtchn_alloc_unbound;
struct evtchn_bind_interdomain;
struct evtchn_bind_vcpu;
+struct evtchn_reset;
int xen_evtchn_status_op(struct evtchn_status *status);
int xen_evtchn_close_op(struct evtchn_close *close);
int xen_evtchn_unmask_op(struct evtchn_unmask *unmask);
@@ -33,5 +35,6 @@ int xen_evtchn_send_op(struct evtchn_send *send);
int xen_evtchn_alloc_unbound_op(struct evtchn_alloc_unbound *alloc);
int xen_evtchn_bind_interdomain_op(struct evtchn_bind_interdomain *interdomain);
int xen_evtchn_bind_vcpu_op(struct evtchn_bind_vcpu *vcpu);
+int xen_evtchn_reset_op(struct evtchn_reset *reset);
#endif /* QEMU_XEN_EVTCHN_H */
diff --git a/target/i386/kvm/xen-emu.c b/target/i386/kvm/xen-emu.c
index 960999198a..e4104b67c3 100644
--- a/target/i386/kvm/xen-emu.c
+++ b/target/i386/kvm/xen-emu.c
@@ -946,6 +946,18 @@ static bool kvm_xen_hcall_evtchn_op(struct kvm_xen_exit *exit, X86CPU *cpu,
err = xen_evtchn_bind_vcpu_op(&vcpu);
break;
}
+ case EVTCHNOP_reset: {
+ struct evtchn_reset reset;
+
+ qemu_build_assert(sizeof(reset) == 2);
+ if (kvm_copy_from_gva(cs, arg, &reset, sizeof(reset))) {
+ err = -EFAULT;
+ break;
+ }
+
+ err = xen_evtchn_reset_op(&reset);
+ break;
+ }
default:
return false;
}
@@ -959,6 +971,11 @@ static int kvm_xen_soft_reset(void)
CPUState *cpu;
int err;
+ err = xen_evtchn_soft_reset();
+ if (err) {
+ return err;
+ }
+
err = xen_evtchn_set_callback_param(0);
if (err) {
return err;
--
2.35.3
next prev parent reply other threads:[~2022-12-30 12:24 UTC|newest]
Thread overview: 67+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-12-30 12:11 [RFC PATCH v5 00/52] Xen support under KVM David Woodhouse
2022-12-30 12:11 ` [RFC PATCH v5 01/52] include: import Xen public headers to include/standard-headers/ David Woodhouse
2022-12-30 12:11 ` [RFC PATCH v5 02/52] xen: add CONFIG_XENFV_MACHINE and CONFIG_XEN_EMU options for Xen emulation David Woodhouse
2022-12-30 12:11 ` [RFC PATCH v5 03/52] xen: Add XEN_DISABLED mode and make it default David Woodhouse
2022-12-30 12:11 ` [RFC PATCH v5 04/52] i386/kvm: Add xen-version KVM accelerator property and init KVM Xen support David Woodhouse
2022-12-30 12:11 ` [RFC PATCH v5 05/52] i386/kvm: handle Xen HVM cpuid leaves David Woodhouse
2022-12-30 12:11 ` [RFC PATCH v5 06/52] i386/hvm: Set Xen vCPU ID in KVM David Woodhouse
2022-12-30 12:11 ` [RFC PATCH v5 07/52] xen-platform: exclude vfio-pci from the PCI platform unplug David Woodhouse
2022-12-30 12:11 ` [RFC PATCH v5 08/52] xen-platform: allow its creation with XEN_EMULATE mode David Woodhouse
2022-12-30 12:11 ` [RFC PATCH v5 09/52] hw/xen_backend: refactor xen_be_init() David Woodhouse
2022-12-30 12:11 ` [RFC PATCH v5 10/52] i386/xen: handle guest hypercalls David Woodhouse
2022-12-30 12:11 ` [RFC PATCH v5 11/52] i386/xen: implement HYPERVISOR_xen_version David Woodhouse
2022-12-30 12:11 ` [RFC PATCH v5 12/52] i386/xen: implement HYPERVISOR_sched_op, SCHEDOP_shutdown David Woodhouse
2022-12-30 12:11 ` [RFC PATCH v5 13/52] i386/xen: Implement SCHEDOP_poll and SCHEDOP_yield David Woodhouse
2022-12-30 12:11 ` [RFC PATCH v5 14/52] hw/xen: Add xen_overlay device for emulating shared xenheap pages David Woodhouse
2023-01-03 17:54 ` Dr. David Alan Gilbert
2022-12-30 12:11 ` [RFC PATCH v5 15/52] i386/xen: add pc_machine_kvm_type to initialize XEN_EMULATE mode David Woodhouse
2022-12-30 12:11 ` [RFC PATCH v5 16/52] i386/xen: manage and save/restore Xen guest long_mode setting David Woodhouse
2022-12-30 12:12 ` [RFC PATCH v5 17/52] i386/xen: implement HYPERVISOR_memory_op David Woodhouse
2022-12-30 12:12 ` [RFC PATCH v5 18/52] i386/xen: implement XENMEM_add_to_physmap_batch David Woodhouse
2022-12-30 12:12 ` [RFC PATCH v5 19/52] i386/xen: implement HYPERVISOR_hvm_op David Woodhouse
2022-12-30 12:12 ` [RFC PATCH v5 20/52] i386/xen: implement HYPERVISOR_vcpu_op David Woodhouse
2022-12-30 12:12 ` [RFC PATCH v5 21/52] i386/xen: handle VCPUOP_register_vcpu_info David Woodhouse
2023-01-03 18:13 ` Dr. David Alan Gilbert
2022-12-30 12:12 ` [RFC PATCH v5 22/52] i386/xen: handle VCPUOP_register_vcpu_time_info David Woodhouse
2022-12-30 12:12 ` [RFC PATCH v5 23/52] i386/xen: handle VCPUOP_register_runstate_memory_area David Woodhouse
2022-12-30 12:12 ` [RFC PATCH v5 24/52] i386/xen: implement HYPERVISOR_event_channel_op David Woodhouse
2022-12-30 12:12 ` [RFC PATCH v5 25/52] i386/xen: implement HVMOP_set_evtchn_upcall_vector David Woodhouse
2022-12-30 12:12 ` [RFC PATCH v5 26/52] i386/xen: implement HVMOP_set_param David Woodhouse
2022-12-30 12:12 ` [RFC PATCH v5 27/52] hw/xen: Add xen_evtchn device for event channel emulation David Woodhouse
2022-12-30 12:12 ` [RFC PATCH v5 28/52] i386/xen: Add support for Xen event channel delivery to vCPU David Woodhouse
2023-01-09 21:18 ` David Woodhouse
2022-12-30 12:12 ` [RFC PATCH v5 29/52] hw/xen: Implement EVTCHNOP_status David Woodhouse
2022-12-30 12:12 ` [RFC PATCH v5 30/52] hw/xen: Implement EVTCHNOP_close David Woodhouse
2022-12-30 12:12 ` [RFC PATCH v5 31/52] hw/xen: Implement EVTCHNOP_unmask David Woodhouse
2022-12-30 12:12 ` [RFC PATCH v5 32/52] hw/xen: Implement EVTCHNOP_bind_virq David Woodhouse
2022-12-30 12:12 ` [RFC PATCH v5 33/52] hw/xen: Implement EVTCHNOP_bind_ipi David Woodhouse
2022-12-30 12:12 ` [RFC PATCH v5 34/52] hw/xen: Implement EVTCHNOP_send David Woodhouse
2022-12-30 12:12 ` [RFC PATCH v5 35/52] hw/xen: Implement EVTCHNOP_alloc_unbound David Woodhouse
2022-12-30 12:12 ` [RFC PATCH v5 36/52] hw/xen: Implement EVTCHNOP_bind_interdomain David Woodhouse
2022-12-30 12:12 ` [RFC PATCH v5 37/52] hw/xen: Implement EVTCHNOP_bind_vcpu David Woodhouse
2022-12-30 12:12 ` David Woodhouse [this message]
2022-12-30 12:12 ` [RFC PATCH v5 39/52] i386/xen: add monitor commands to test event injection David Woodhouse
2023-01-04 12:48 ` Dr. David Alan Gilbert
2023-01-05 19:42 ` David Woodhouse
2023-01-05 20:09 ` Dr. David Alan Gilbert
2023-01-09 17:24 ` David Woodhouse
2023-01-09 18:51 ` Dr. David Alan Gilbert
2023-01-09 19:49 ` David Woodhouse
2022-12-30 12:12 ` [RFC PATCH v5 40/52] hw/xen: Support HVM_PARAM_CALLBACK_TYPE_GSI callback David Woodhouse
2022-12-30 12:12 ` [RFC PATCH v5 41/52] hw/xen: Support HVM_PARAM_CALLBACK_TYPE_PCI_INTX callback David Woodhouse
2022-12-30 12:12 ` [RFC PATCH v5 42/52] kvm/i386: Add xen-gnttab-max-frames property David Woodhouse
2022-12-30 12:12 ` [RFC PATCH v5 43/52] hw/xen: Add xen_gnttab device for grant table emulation David Woodhouse
2022-12-30 12:12 ` [RFC PATCH v5 44/52] hw/xen: Support mapping grant frames David Woodhouse
2022-12-30 12:12 ` [RFC PATCH v5 45/52] i386/xen: Implement HYPERVISOR_grant_table_op and GNTTABOP_[gs]et_verson David Woodhouse
2022-12-30 12:12 ` [RFC PATCH v5 46/52] hw/xen: Implement GNTTABOP_query_size David Woodhouse
2022-12-30 12:12 ` [RFC PATCH v5 47/52] i386/xen: handle PV timer hypercalls David Woodhouse
2022-12-30 12:12 ` [RFC PATCH v5 48/52] i386/xen: Reserve Xen special pages for console, xenstore rings David Woodhouse
2022-12-30 12:12 ` [RFC PATCH v5 49/52] i386/xen: handle HVMOP_get_param David Woodhouse
2022-12-30 12:12 ` [RFC PATCH v5 50/52] hw/xen: Add backend implementation of interdomain event channel support David Woodhouse
2023-01-04 11:22 ` Dr. David Alan Gilbert
2023-01-04 14:33 ` David Woodhouse
2023-01-04 11:52 ` Dr. David Alan Gilbert
2022-12-30 12:12 ` [RFC PATCH v5 51/52] hw/xen: Add xen_xenstore device for xenstore emulation David Woodhouse
2023-01-04 12:01 ` Dr. David Alan Gilbert
2023-01-04 14:35 ` David Woodhouse
2022-12-30 12:12 ` [RFC PATCH v5 52/52] hw/xen: Add basic ring handling to xenstore David Woodhouse
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