From: Anthony PERARD <anthony.perard@citrix.com>
To: Xen Devel <xen-devel@lists.xen.org>
Cc: Anthony PERARD <anthony.perard@citrix.com>,
Stefano Stabellini <stefano.stabellini@citrix.com>
Subject: [PATCH 6/7] xen: Fix vcpus initialisation.
Date: Mon, 17 Jun 2013 15:15:48 +0100 [thread overview]
Message-ID: <1371478549-28527-6-git-send-email-anthony.perard@citrix.com> (raw)
In-Reply-To: <1371478549-28527-1-git-send-email-anthony.perard@citrix.com>
Each vcpu needs a call to xc_evtchn_bind_interdomain in QEMU, even those
that are unplug at QEMU initialisation.
Without this patch, any hot-plugged CPU will be "Stuck ??" when Linux
will try to use them.
Signed-off-by: Anthony PERARD <anthony.perard@citrix.com>
---
xen-all.c | 8 ++++----
1 file changed, 4 insertions(+), 4 deletions(-)
diff --git a/xen-all.c b/xen-all.c
index daf43b9..15be8ed 100644
--- a/xen-all.c
+++ b/xen-all.c
@@ -632,13 +632,13 @@ static ioreq_t *cpu_get_ioreq(XenIOState *state)
}
if (port != -1) {
- for (i = 0; i < smp_cpus; i++) {
+ for (i = 0; i < max_cpus; i++) {
if (state->ioreq_local_port[i] == port) {
break;
}
}
- if (i == smp_cpus) {
+ if (i == max_cpus) {
hw_error("Fatal error while trying to get io event!\n");
}
@@ -1123,10 +1123,10 @@ int xen_hvm_init(void)
hw_error("map buffered IO page returned error %d", errno);
}
- state->ioreq_local_port = g_malloc0(smp_cpus * sizeof (evtchn_port_t));
+ state->ioreq_local_port = g_malloc0(max_cpus * sizeof (evtchn_port_t));
/* FIXME: how about if we overflow the page here? */
- for (i = 0; i < smp_cpus; i++) {
+ for (i = 0; i < max_cpus; i++) {
rc = xc_evtchn_bind_interdomain(state->xce_handle, xen_domid,
xen_vcpu_eport(state->shared_page, i));
if (rc == -1) {
--
Anthony PERARD
next prev parent reply other threads:[~2013-06-17 14:15 UTC|newest]
Thread overview: 29+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-06-17 14:13 [PATCH v2 0/7] CPU hotplug for qemu-xen for 4.3 Anthony PERARD
2013-06-17 14:15 ` [PATCH 1/7] cpu: Introduce get_arch_id() method and override it for X86CPU Anthony PERARD
2013-06-17 14:15 ` [PATCH 2/7] cpu: Add qemu_for_each_cpu() Anthony PERARD
2013-06-17 14:15 ` [PATCH 3/7] acpi_piix4: Add infrastructure to send CPU hot-plug GPE to guest Anthony PERARD
2013-06-17 14:15 ` [PATCH 4/7] Add hot_add_cpu hook to QEMUMachine Anthony PERARD
2013-06-17 14:15 ` [PATCH 5/7] QMP: Add cpu-add command Anthony PERARD
2013-06-17 14:15 ` Anthony PERARD [this message]
2013-06-20 11:14 ` [PATCH 6/7] xen: Fix vcpus initialisation Stefano Stabellini
2013-06-17 14:15 ` [PATCH 7/7] xen: Implement hot_add_cpu hook Anthony PERARD
2013-06-20 11:21 ` Stefano Stabellini
2013-06-20 13:19 ` Anthony PERARD
2013-06-20 13:40 ` Stefano Stabellini
2013-06-21 17:40 ` Anthony PERARD
2013-06-17 14:20 ` [PATCH v2 1/2] libxl: Add "cpu-add" QMP command Anthony PERARD
2013-06-17 14:20 ` [PATCH v2 2/2] libxl: Use QMP cpu-add to hotplug CPU with qemu-xen Anthony PERARD
2013-06-17 15:31 ` Ian Campbell
2013-06-17 15:50 ` Anthony PERARD
2013-06-20 11:12 ` Stefano Stabellini
2013-06-17 15:25 ` [PATCH v2 1/2] libxl: Add "cpu-add" QMP command Ian Campbell
2013-06-17 15:28 ` Anthony PERARD
2013-06-17 15:31 ` Ian Campbell
2013-06-17 14:22 ` [PATCH v2] xen: Allow CPU to be counted than currently "plugged" Anthony PERARD
2013-06-17 15:24 ` Ian Campbell
2013-06-17 15:44 ` Anthony PERARD
2013-06-24 16:57 ` [PATCH v2 0/7] CPU hotplug for qemu-xen for 4.3 Stefano Stabellini
2013-06-24 17:21 ` Stefano Stabellini
2013-06-24 17:28 ` Anthony PERARD
2013-06-25 9:19 ` George Dunlap
2013-06-25 11:40 ` Stefano Stabellini
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