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| author | David Woodhouse <dwmw@amazon.co.uk> | 2023-10-12 10:59:45 +0100 |
|---|---|---|
| committer | David Woodhouse <dwmw@amazon.co.uk> | 2023-11-07 08:54:20 +0000 |
| commit | d388c9f53b971fd185ee1dc2f4f3ca88abda906d (patch) | |
| tree | c50396a8d3cea1f8ef1436db3abfeb57739fcba3 | |
| parent | 8473607bcfef62fd8f6bb98b27807bbfce30a81a (diff) | |
| download | focaccia-qemu-d388c9f53b971fd185ee1dc2f4f3ca88abda906d.tar.gz focaccia-qemu-d388c9f53b971fd185ee1dc2f4f3ca88abda906d.zip | |
hw/xen: populate store frontend nodes with XenStore PFN/port
This is kind of redundant since without being able to get these through some other method (HVMOP_get_param) the guest wouldn't be able to access XenStore in order to find them. Signed-off-by: David Woodhouse <dwmw@amazon.co.uk> Reviewed-by: Paul Durrant <paul@xen.org>
| -rw-r--r-- | hw/i386/kvm/xen_xenstore.c | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/hw/i386/kvm/xen_xenstore.c b/hw/i386/kvm/xen_xenstore.c index 831da535fc..b7c0407765 100644 --- a/hw/i386/kvm/xen_xenstore.c +++ b/hw/i386/kvm/xen_xenstore.c @@ -1434,6 +1434,7 @@ static void alloc_guest_port(XenXenstoreState *s) int xen_xenstore_reset(void) { XenXenstoreState *s = xen_xenstore_singleton; + GList *perms; int err; if (!s) { @@ -1461,6 +1462,16 @@ int xen_xenstore_reset(void) } s->be_port = err; + /* Create frontend store nodes */ + perms = g_list_append(NULL, xs_perm_as_string(XS_PERM_NONE, DOMID_QEMU)); + perms = g_list_append(perms, xs_perm_as_string(XS_PERM_READ, xen_domid)); + + relpath_printf(s, perms, "store/port", "%u", s->guest_port); + relpath_printf(s, perms, "store/ring-ref", "%lu", + XEN_SPECIAL_PFN(XENSTORE)); + + g_list_free_full(perms, g_free); + /* * We don't actually access the guest's page through the grant, because * this isn't real Xen, and we can just use the page we gave it in the |