From: Paolo Bonzini <pbonzini@redhat.com>
To: Don Slutz <dslutz@verizon.com>, Alexander Graf <agraf@suse.de>,
qemu-devel@nongnu.org
Cc: xen-devel@lists.xensource.com,
"Marcel Apfelbaum" <marcel.a@redhat.com>,
"Michael S. Tsirkin" <mst@redhat.com>,
"Markus Armbruster" <armbru@redhat.com>,
"Anthony Liguori" <aliguori@amazon.com>,
"Andreas Färber" <afaerber@suse.de>,
"Stefano Stabellini" <stefano.stabellini@eu.citrix.com>
Subject: Re: [Qemu-devel] [PATCH 1/1] xen-hvm.c: Add support for Xen access to vmport
Date: Tue, 30 Sep 2014 10:14:25 +0200 [thread overview]
Message-ID: <542A6661.4070101@redhat.com> (raw)
In-Reply-To: <542A01C3.70908@terremark.com>
Il 30/09/2014 03:05, Don Slutz ha scritto:
>
> Basically current_cpu is NULL here, and I think that no CPU objects
> have been created for Xen. So there is no VCPU object to select.
CPU objects are created for Xen HVM, though not for PV.
You would have to visit the list of CPUs and fill in an array in
XenIOState (e.g. "X86CPU **cpu_by_ioreq_id" array in XenIOState). Then
you can set
current_cpu = state->cpu_by_ioreq_id[state->send_vcpu];
handle_ioreq(req);
current_cpu = NULL;
in cpu_handle_ioreq.
Paolo
WARNING: multiple messages have this Message-ID (diff)
From: Paolo Bonzini <pbonzini@redhat.com>
To: Don Slutz <dslutz@verizon.com>, Alexander Graf <agraf@suse.de>,
qemu-devel@nongnu.org
Cc: xen-devel@lists.xensource.com,
"Marcel Apfelbaum" <marcel.a@redhat.com>,
"Michael S. Tsirkin" <mst@redhat.com>,
"Markus Armbruster" <armbru@redhat.com>,
"Anthony Liguori" <aliguori@amazon.com>,
"Andreas Färber" <afaerber@suse.de>,
"Stefano Stabellini" <stefano.stabellini@eu.citrix.com>
Subject: Re: [PATCH 1/1] xen-hvm.c: Add support for Xen access to vmport
Date: Tue, 30 Sep 2014 10:14:25 +0200 [thread overview]
Message-ID: <542A6661.4070101@redhat.com> (raw)
In-Reply-To: <542A01C3.70908@terremark.com>
Il 30/09/2014 03:05, Don Slutz ha scritto:
>
> Basically current_cpu is NULL here, and I think that no CPU objects
> have been created for Xen. So there is no VCPU object to select.
CPU objects are created for Xen HVM, though not for PV.
You would have to visit the list of CPUs and fill in an array in
XenIOState (e.g. "X86CPU **cpu_by_ioreq_id" array in XenIOState). Then
you can set
current_cpu = state->cpu_by_ioreq_id[state->send_vcpu];
handle_ioreq(req);
current_cpu = NULL;
in cpu_handle_ioreq.
Paolo
next prev parent reply other threads:[~2014-09-30 8:14 UTC|newest]
Thread overview: 42+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-09-26 18:47 [Qemu-devel] [PATCH 0/1] Add support for Xen access to vmport Don Slutz
2014-09-26 18:47 ` Don Slutz
2014-09-26 18:47 ` [Qemu-devel] [PATCH 1/1] xen-hvm.c: " Don Slutz
2014-09-26 18:47 ` Don Slutz
2014-09-29 8:12 ` [Qemu-devel] " Alexander Graf
2014-09-29 8:12 ` Alexander Graf
2014-09-29 11:10 ` [Qemu-devel] " Paolo Bonzini
2014-09-29 11:10 ` Paolo Bonzini
2014-09-29 11:53 ` [Qemu-devel] " Alexander Graf
2014-09-29 11:53 ` Alexander Graf
2014-09-29 12:21 ` [Qemu-devel] " Paolo Bonzini
2014-09-29 12:21 ` Paolo Bonzini
2014-09-29 12:57 ` [Qemu-devel] " Alexander Graf
2014-09-29 12:57 ` Alexander Graf
2014-09-29 13:14 ` [Qemu-devel] " Paolo Bonzini
2014-09-29 13:14 ` Paolo Bonzini
2014-09-30 1:05 ` [Qemu-devel] " Don Slutz
2014-09-30 1:05 ` Don Slutz
2014-09-30 8:14 ` Paolo Bonzini [this message]
2014-09-30 8:14 ` Paolo Bonzini
2014-09-30 1:00 ` [Qemu-devel] " Don Slutz
2014-09-30 1:00 ` Don Slutz
2014-09-29 10:15 ` [Qemu-devel] " Stefano Stabellini
2014-09-29 10:15 ` Stefano Stabellini
2014-09-29 10:25 ` [Qemu-devel] " Stefano Stabellini
2014-09-29 10:25 ` Stefano Stabellini
2014-09-30 0:32 ` [Qemu-devel] " Don Slutz
2014-09-30 0:32 ` Don Slutz
2014-09-30 10:35 ` [Qemu-devel] " Stefano Stabellini
2014-09-30 10:35 ` Stefano Stabellini
2014-10-01 5:21 ` [Qemu-devel] " Slutz, Donald Christopher
2014-10-01 5:21 ` Slutz, Donald Christopher
2014-10-01 9:20 ` [Qemu-devel] " Stefano Stabellini
2014-10-01 9:20 ` Stefano Stabellini
2014-10-01 12:33 ` [Qemu-devel] " Don Slutz
2014-10-01 12:33 ` Don Slutz
2014-10-01 14:44 ` [Qemu-devel] [Xen-devel] " Ian Campbell
2014-10-01 14:44 ` Ian Campbell
2014-10-01 16:01 ` [Qemu-devel] " Anthony Liguori
2014-10-01 16:01 ` Anthony Liguori
2014-10-01 15:08 ` [Qemu-devel] " Paul Durrant
2014-10-01 15:08 ` Paul Durrant
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