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kvm tools: Add guest compatability warning to virtio-9p

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Signed-off-by: Sasha Levin <levinsasha928@gmail.com>
Signed-off-by: Pekka Enberg <penberg@kernel.org>
This commit is contained in:
Sasha Levin
2015-06-01 16:39:47 +01:00
committed by Will Deacon
parent 404d164b08
commit e59662b36c
2 changed files with 10 additions and 0 deletions
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include/kvm/virtio-9p.h
+1
View File
@@ -44,6 +44,7 @@ struct p9_dev {
u32 features;
struct virtio_9p_config *config;
u16 base_addr;
int compat_id;
/* virtio queue */
u16 queue_selector;
virtio/9p.c
+9
View File
@@ -5,6 +5,7 @@
#include "kvm/ioeventfd.h"
#include "kvm/irq.h"
#include "kvm/virtio-9p.h"
#include "kvm/guest_compat.h"
#include <stdio.h>
#include <stdlib.h>
@@ -781,6 +782,8 @@ static bool virtio_p9_pci_io_out(struct ioport *ioport, struct kvm *kvm,
struct p9_dev_job *job;
struct virt_queue *queue;
compat__remove_message(p9dev->compat_id);
job = &p9dev->jobs[p9dev->queue_selector];
queue = &p9dev->vqs[p9dev->queue_selector];
queue->pfn = ioport__read32(data);
@@ -900,6 +903,12 @@ int virtio_9p__init(struct kvm *kvm, const char *root, const char *tag_name)
};
pci__register(&p9dev->pci_hdr, dev);
p9dev->compat_id = compat__add_message("virtio-9p device was not detected",
"While you have requested a virtio-9p device, "
"the guest kernel didn't seem to detect it.\n"
"Please make sure that the kernel was compiled"
"with CONFIG_NET_9P_VIRTIO.");
return err;
free_p9dev_config: