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 39/52] i386/xen: add monitor commands to test event injection
Date: Fri, 30 Dec 2022 12:12:22 +0000 [thread overview]
Message-ID: <20221230121235.1282915-40-dwmw2@infradead.org> (raw)
In-Reply-To: <20221230121235.1282915-1-dwmw2@infradead.org>
From: Joao Martins <joao.m.martins@oracle.com>
Specifically add listing, injection of event channels.
Signed-off-by: Joao Martins <joao.m.martins@oracle.com>
Signed-off-by: David Woodhouse <dwmw@amazon.co.uk>
---
hmp-commands.hx | 29 ++++++++++++++
hw/i386/kvm/xen_evtchn.c | 83 ++++++++++++++++++++++++++++++++++++++++
hw/i386/kvm/xen_evtchn.h | 3 ++
monitor/misc.c | 4 ++
4 files changed, 119 insertions(+)
diff --git a/hmp-commands.hx b/hmp-commands.hx
index 673e39a697..fd77c432c0 100644
--- a/hmp-commands.hx
+++ b/hmp-commands.hx
@@ -1815,3 +1815,32 @@ SRST
Dump the FDT in dtb format to *filename*.
ERST
#endif
+
+#if defined(CONFIG_XEN_EMU)
+ {
+ .name = "xen-event-inject",
+ .args_type = "port:i",
+ .params = "port",
+ .help = "inject event channel",
+ .cmd = hmp_xen_event_inject,
+ },
+
+SRST
+``xen-event-inject`` *port*
+ Notify guest via event channel on port *port*.
+ERST
+
+
+ {
+ .name = "xen-event-list",
+ .args_type = "",
+ .params = "",
+ .help = "list event channel state",
+ .cmd = hmp_xen_event_list,
+ },
+
+SRST
+``xen-event-list``
+ List event channels in the guest
+ERST
+#endif
diff --git a/hw/i386/kvm/xen_evtchn.c b/hw/i386/kvm/xen_evtchn.c
index cdf7d86da8..87136334f5 100644
--- a/hw/i386/kvm/xen_evtchn.c
+++ b/hw/i386/kvm/xen_evtchn.c
@@ -19,6 +19,8 @@
#include "exec/target_page.h"
#include "exec/address-spaces.h"
#include "migration/vmstate.h"
+#include "monitor/monitor.h"
+#include "qapi/qmp/qdict.h"
#include "hw/sysbus.h"
#include "hw/xen/xen.h"
@@ -1061,3 +1063,84 @@ int xen_evtchn_send_op(struct evtchn_send *send)
return ret;
}
+static const char *type_names[] = {
+ "closed",
+ "unbound",
+ "interdomain",
+ "pirq",
+ "virq",
+ "ipi"
+};
+
+void hmp_xen_event_list(Monitor *mon, const QDict *qdict)
+{
+ XenEvtchnState *s = xen_evtchn_singleton;
+ void *shinfo, *pending, *mask;
+ int i;
+
+ if (!s) {
+ monitor_printf(mon, "Xen event channel emulation not enabled\n");
+ return;
+ }
+
+ shinfo = xen_overlay_get_shinfo_ptr();
+ if (!shinfo) {
+ monitor_printf(mon, "Xen shared info page not allocated\n");
+ return;
+ }
+ if (xen_is_long_mode()) {
+ pending = shinfo + offsetof(struct shared_info, evtchn_pending);
+ mask = shinfo + offsetof(struct shared_info, evtchn_mask);
+ } else {
+ pending = shinfo + offsetof(struct compat_shared_info, evtchn_pending);
+ mask = shinfo + offsetof(struct compat_shared_info, evtchn_mask);
+ }
+
+ qemu_mutex_lock(&s->port_lock);
+
+ for (i = 0; i < s->nr_ports; i++) {
+ XenEvtchnPort *p = &s->port_table[i];
+
+ if (p->type == EVTCHNSTAT_closed) {
+ continue;
+ }
+
+ monitor_printf(mon, "port %4u %s/%d vcpu:%d pending:%d mask:%d\n", i,
+ type_names[p->type], p->type_val, p->vcpu,
+ test_bit(i, pending), test_bit(i, mask));
+ }
+
+ qemu_mutex_unlock(&s->port_lock);
+}
+
+void hmp_xen_event_inject(Monitor *mon, const QDict *qdict)
+{
+ XenEvtchnState *s = xen_evtchn_singleton;
+ int port = qdict_get_int(qdict, "port");
+ XenEvtchnPort *p;
+
+ if (!s) {
+ monitor_printf(mon, "Xen event channel emulation not enabled\n");
+ return;
+ }
+
+ if (!valid_port(port)) {
+ monitor_printf(mon, "Invalid port %d\n", port);
+ return;
+ }
+ p = &s->port_table[port];
+
+ qemu_mutex_lock(&s->port_lock);
+
+ monitor_printf(mon, "port %4u %s/%d vcpu:%d\n", port,
+ type_names[p->type], p->type_val, p->vcpu);
+
+ if (set_port_pending(s, port)) {
+ monitor_printf(mon, "Failed to set port %d\n", port);
+ } else {
+ monitor_printf(mon, "Delivered port %d\n", port);
+ }
+
+ qemu_mutex_unlock(&s->port_lock);
+}
+
diff --git a/hw/i386/kvm/xen_evtchn.h b/hw/i386/kvm/xen_evtchn.h
index 5d3e03553f..1de53daa52 100644
--- a/hw/i386/kvm/xen_evtchn.h
+++ b/hw/i386/kvm/xen_evtchn.h
@@ -16,6 +16,9 @@ void xen_evtchn_create(void);
int xen_evtchn_soft_reset(void);
int xen_evtchn_set_callback_param(uint64_t param);
+void hmp_xen_event_list(Monitor *mon, const QDict *qdict);
+void hmp_xen_event_inject(Monitor *mon, const QDict *qdict);
+
struct evtchn_status;
struct evtchn_close;
struct evtchn_unmask;
diff --git a/monitor/misc.c b/monitor/misc.c
index 205487e2b9..2b11c0f86a 100644
--- a/monitor/misc.c
+++ b/monitor/misc.c
@@ -88,6 +88,10 @@
/* Make devices configuration available for use in hmp-commands*.hx templates */
#include CONFIG_DEVICES
+#ifdef CONFIG_XEN_EMU
+#include "hw/i386/kvm/xen_evtchn.h"
+#endif
+
/* file descriptors passed via SCM_RIGHTS */
typedef struct mon_fd_t mon_fd_t;
struct mon_fd_t {
--
2.35.3
next prev parent reply other threads:[~2022-12-30 12:27 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 ` [RFC PATCH v5 38/52] hw/xen: Implement EVTCHNOP_reset David Woodhouse
2022-12-30 12:12 ` David Woodhouse [this message]
2023-01-04 12:48 ` [RFC PATCH v5 39/52] i386/xen: add monitor commands to test event injection 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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