From: David Woodhouse <dwmw2@infradead.org>
To: Peter Maydell <peter.maydell@linaro.org>, 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>,
"Michael S. Tsirkin" <mst@redhat.com>,
"Marcel Apfelbaum" <marcel.apfelbaum@gmail.com>,
armbru@redhat.com
Subject: [PATCH v10 38/59] hw/xen: Implement EVTCHNOP_reset
Date: Wed, 1 Feb 2023 14:31:27 +0000 [thread overview]
Message-ID: <20230201143148.1744093-39-dwmw2@infradead.org> (raw)
In-Reply-To: <20230201143148.1744093-1-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 | 30 ++++++++++++++++++++++++++++++
hw/i386/kvm/xen_evtchn.h | 3 +++
target/i386/kvm/xen-emu.c | 17 +++++++++++++++++
3 files changed, 50 insertions(+)
diff --git a/hw/i386/kvm/xen_evtchn.c b/hw/i386/kvm/xen_evtchn.c
index f87b6a3b23..9b1fb47e85 100644
--- a/hw/i386/kvm/xen_evtchn.c
+++ b/hw/i386/kvm/xen_evtchn.c
@@ -12,6 +12,7 @@
#include "qemu/osdep.h"
#include "qemu/host-utils.h"
#include "qemu/module.h"
+#include "qemu/lockable.h"
#include "qemu/main-loop.h"
#include "qemu/log.h"
#include "qapi/error.h"
@@ -745,6 +746,35 @@ 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;
+ }
+
+ assert(qemu_mutex_iothread_locked());
+
+ QEMU_LOCK_GUARD(&s->port_lock);
+
+ for (i = 0; i < s->nr_ports; i++) {
+ close_port(s, i);
+ }
+
+ 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 ec7aefadfc..96261c10a0 100644
--- a/target/i386/kvm/xen-emu.c
+++ b/target/i386/kvm/xen-emu.c
@@ -961,6 +961,18 @@ 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;
}
@@ -978,6 +990,11 @@ int kvm_xen_soft_reset(void)
trace_kvm_xen_soft_reset();
+ err = xen_evtchn_soft_reset();
+ if (err) {
+ return err;
+ }
+
/*
* Zero is the reset/startup state for HVM_PARAM_CALLBACK_IRQ. Strictly,
* it maps to HVM_PARAM_CALLBACK_TYPE_GSI with GSI#0, but Xen refuses to
--
2.39.0
next prev parent reply other threads:[~2023-02-01 14:44 UTC|newest]
Thread overview: 104+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-02-01 14:30 [PATCH v10 00/59] Xen HVM support under KVM David Woodhouse
2023-02-01 14:30 ` [PATCH v10 01/59] include: import Xen public headers to hw/xen/interface David Woodhouse
2023-02-01 14:30 ` [PATCH v10 02/59] xen: add CONFIG_XEN_BUS and CONFIG_XEN_EMU options for Xen emulation David Woodhouse
2023-02-01 14:30 ` [PATCH v10 03/59] xen: Add XEN_DISABLED mode and make it default David Woodhouse
2023-02-01 14:30 ` [PATCH v10 04/59] i386/kvm: Add xen-version KVM accelerator property and init KVM Xen support David Woodhouse
2023-02-01 14:30 ` [PATCH v10 05/59] i386/kvm: handle Xen HVM cpuid leaves David Woodhouse
2023-02-01 14:30 ` [PATCH v10 06/59] i386/hvm: Set Xen vCPU ID in KVM David Woodhouse
2023-02-01 14:30 ` [PATCH v10 07/59] xen-platform: exclude vfio-pci from the PCI platform unplug David Woodhouse
2023-02-01 14:30 ` [PATCH v10 08/59] xen-platform: allow its creation with XEN_EMULATE mode David Woodhouse
2023-02-01 14:30 ` [PATCH v10 09/59] i386/xen: handle guest hypercalls David Woodhouse
2023-02-01 14:30 ` [PATCH v10 10/59] i386/xen: implement HYPERVISOR_xen_version David Woodhouse
2023-02-01 14:31 ` [PATCH v10 11/59] i386/xen: implement HYPERVISOR_sched_op, SCHEDOP_shutdown David Woodhouse
2023-02-01 14:31 ` [PATCH v10 12/59] i386/xen: Implement SCHEDOP_poll and SCHEDOP_yield David Woodhouse
2023-02-01 14:31 ` [PATCH v10 13/59] hw/xen: Add xen_overlay device for emulating shared xenheap pages David Woodhouse
2023-02-01 14:31 ` [PATCH v10 14/59] xen: Permit --xen-domid argument when accel is KVM David Woodhouse
2023-02-01 14:31 ` [PATCH v10 15/59] i386/xen: add pc_machine_kvm_type to initialize XEN_EMULATE mode David Woodhouse
2023-02-01 14:31 ` [PATCH v10 16/59] i386/xen: manage and save/restore Xen guest long_mode setting David Woodhouse
2023-02-01 14:31 ` [PATCH v10 17/59] i386/xen: implement HYPERVISOR_memory_op David Woodhouse
2023-02-01 14:31 ` [PATCH v10 18/59] i386/xen: implement XENMEM_add_to_physmap_batch David Woodhouse
2023-02-01 14:31 ` [PATCH v10 19/59] i386/xen: implement HYPERVISOR_hvm_op David Woodhouse
2023-02-01 14:31 ` [PATCH v10 20/59] i386/xen: implement HYPERVISOR_vcpu_op David Woodhouse
2023-02-01 14:31 ` [PATCH v10 21/59] i386/xen: handle VCPUOP_register_vcpu_info David Woodhouse
2023-02-01 14:31 ` [PATCH v10 22/59] i386/xen: handle VCPUOP_register_vcpu_time_info David Woodhouse
2023-02-01 14:31 ` [PATCH v10 23/59] i386/xen: handle VCPUOP_register_runstate_memory_area David Woodhouse
2023-02-01 14:31 ` [PATCH v10 24/59] i386/xen: implement HYPERVISOR_event_channel_op David Woodhouse
2023-02-01 14:31 ` [PATCH v10 25/59] i386/xen: implement HVMOP_set_evtchn_upcall_vector David Woodhouse
2023-02-01 14:31 ` [PATCH v10 26/59] i386/xen: implement HVMOP_set_param David Woodhouse
2023-02-01 14:31 ` [PATCH v10 27/59] hw/xen: Add xen_evtchn device for event channel emulation David Woodhouse
2023-02-01 14:31 ` [PATCH v10 28/59] i386/xen: Add support for Xen event channel delivery to vCPU David Woodhouse
2023-02-01 14:31 ` [PATCH v10 29/59] hw/xen: Implement EVTCHNOP_status David Woodhouse
2023-02-01 14:31 ` [PATCH v10 30/59] hw/xen: Implement EVTCHNOP_close David Woodhouse
2023-02-10 13:25 ` Paul Durrant
2023-02-01 14:31 ` [PATCH v10 31/59] hw/xen: Implement EVTCHNOP_unmask David Woodhouse
2023-02-10 13:33 ` Paul Durrant
2023-02-01 14:31 ` [PATCH v10 32/59] hw/xen: Implement EVTCHNOP_bind_virq David Woodhouse
2023-02-10 13:48 ` Paul Durrant
2023-02-15 13:08 ` David Woodhouse
2023-02-01 14:31 ` [PATCH v10 33/59] hw/xen: Implement EVTCHNOP_bind_ipi David Woodhouse
2023-02-10 13:55 ` Paul Durrant
2023-02-10 14:15 ` David Woodhouse
2023-02-10 14:25 ` Paul Durrant
2023-02-01 14:31 ` [PATCH v10 34/59] hw/xen: Implement EVTCHNOP_send David Woodhouse
2023-02-10 13:58 ` Paul Durrant
2023-02-01 14:31 ` [PATCH v10 35/59] hw/xen: Implement EVTCHNOP_alloc_unbound David Woodhouse
2023-02-10 14:13 ` Paul Durrant
2023-02-10 14:17 ` David Woodhouse
2023-02-10 14:28 ` Paul Durrant
2023-02-01 14:31 ` [PATCH v10 36/59] hw/xen: Implement EVTCHNOP_bind_interdomain David Woodhouse
2023-02-10 14:30 ` Paul Durrant
2023-02-01 14:31 ` [PATCH v10 37/59] hw/xen: Implement EVTCHNOP_bind_vcpu David Woodhouse
2023-02-10 14:36 ` Paul Durrant
2023-02-01 14:31 ` David Woodhouse [this message]
2023-02-10 14:44 ` [PATCH v10 38/59] hw/xen: Implement EVTCHNOP_reset Paul Durrant
2023-02-01 14:31 ` [PATCH v10 39/59] i386/xen: add monitor commands to test event injection David Woodhouse
2023-02-10 14:54 ` Paul Durrant
2023-02-10 15:05 ` David Woodhouse
2023-02-10 15:12 ` Paul Durrant
2023-02-01 14:31 ` [PATCH v10 40/59] hw/xen: Support HVM_PARAM_CALLBACK_TYPE_GSI callback David Woodhouse
2023-02-10 15:24 ` Paul Durrant
2023-02-01 14:31 ` [PATCH v10 41/59] hw/xen: Support HVM_PARAM_CALLBACK_TYPE_PCI_INTX callback David Woodhouse
2023-02-10 16:47 ` Paul Durrant
2023-02-01 14:31 ` [PATCH v10 42/59] kvm/i386: Add xen-gnttab-max-frames property David Woodhouse
2023-02-13 15:17 ` Paul Durrant
2023-02-01 14:31 ` [PATCH v10 43/59] hw/xen: Add xen_gnttab device for grant table emulation David Woodhouse
2023-02-13 15:21 ` Paul Durrant
2023-02-01 14:31 ` [PATCH v10 44/59] hw/xen: Support mapping grant frames David Woodhouse
2023-02-13 15:31 ` Paul Durrant
2023-02-14 15:35 ` David Woodhouse
2023-02-14 15:40 ` Paul Durrant
2023-02-14 15:41 ` David Woodhouse
2023-02-01 14:31 ` [PATCH v10 45/59] i386/xen: Implement HYPERVISOR_grant_table_op and GNTTABOP_[gs]et_verson David Woodhouse
2023-02-14 9:59 ` Paul Durrant
2023-02-14 15:33 ` David Woodhouse
2023-02-01 14:31 ` [PATCH v10 46/59] hw/xen: Implement GNTTABOP_query_size David Woodhouse
2023-02-14 10:00 ` Paul Durrant
2023-02-01 14:31 ` [PATCH v10 47/59] i386/xen: handle PV timer hypercalls David Woodhouse
2023-02-14 10:10 ` Paul Durrant
2023-02-14 15:37 ` David Woodhouse
2023-02-15 13:43 ` David Woodhouse
2023-02-01 14:31 ` [PATCH v10 48/59] i386/xen: Reserve Xen special pages for console, xenstore rings David Woodhouse
2023-02-14 15:35 ` Paul Durrant
2023-02-01 14:31 ` [PATCH v10 49/59] i386/xen: handle HVMOP_get_param David Woodhouse
2023-02-14 15:47 ` Paul Durrant
2023-02-14 15:50 ` David Woodhouse
2023-02-01 14:31 ` [PATCH v10 50/59] hw/xen: Add backend implementation of interdomain event channel support David Woodhouse
2023-02-14 15:53 ` Paul Durrant
2023-02-01 14:31 ` [PATCH v10 51/59] hw/xen: Add xen_xenstore device for xenstore emulation David Woodhouse
2023-02-14 15:55 ` Paul Durrant
2023-02-01 14:31 ` [PATCH v10 52/59] hw/xen: Add basic ring handling to xenstore David Woodhouse
2023-02-14 16:02 ` Paul Durrant
2023-02-01 14:31 ` [PATCH v10 53/59] hw/xen: Automatically add xen-platform PCI device for emulated Xen guests David Woodhouse
2023-02-14 16:04 ` Paul Durrant
2023-02-01 14:31 ` [PATCH v10 54/59] i386/xen: Implement HYPERVISOR_physdev_op David Woodhouse
2023-02-14 16:06 ` Paul Durrant
2023-02-01 14:31 ` [PATCH v10 55/59] hw/xen: Implement emulated PIRQ hypercall support David Woodhouse
2023-02-14 16:10 ` Paul Durrant
2023-02-01 14:31 ` [PATCH v10 56/59] hw/xen: Support GSI mapping to PIRQ David Woodhouse
2023-02-14 16:12 ` Paul Durrant
2023-02-01 14:31 ` [PATCH v10 57/59] hw/xen: Support MSI " David Woodhouse
2023-02-14 16:14 ` Paul Durrant
2023-02-01 14:31 ` [PATCH v10 58/59] kvm/i386: Add xen-evtchn-max-pirq property David Woodhouse
2023-02-14 16:16 ` Paul Durrant
2023-02-01 14:31 ` [PATCH v10 59/59] i386/xen: Document Xen HVM emulation David Woodhouse
2023-02-14 16:20 ` Paul Durrant
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