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[PULL,29/29] xen/pt: Don't slurp wholesale the PCI configuration registers

Message ID 1441905361-31967-29-git-send-email-stefano.stabellini@eu.citrix.com
State New
Headers show

Commit Message

Stefano Stabellini Sept. 10, 2015, 5:16 p.m. UTC 
From: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>

Instead we have the emulation registers ->init functions which
consult the host values to see what the initial value should be
and they are responsible for populating the dev.config.

Reviewed-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
---
 hw/xen/xen_pt.c |    7 +------
 1 file changed, 1 insertion(+), 6 deletions(-)
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Patch

diff --git a/hw/xen/xen_pt.c b/hw/xen/xen_pt.c
index c07609c..2b54f52 100644
--- a/hw/xen/xen_pt.c
+++ b/hw/xen/xen_pt.c
@@ -790,12 +790,7 @@  static int xen_pt_initfn(PCIDevice *d)
     }
 
     /* Initialize virtualized PCI configuration (Extended 256 Bytes) */
-    rc = xen_host_pci_get_block(&s->real_device, 0, d->config,
-                                PCI_CONFIG_SPACE_SIZE);
-    if (rc < 0) {
-        XEN_PT_ERR(d,"Could not read PCI_CONFIG space! (rc:%d)\n", rc);
-        goto err_out;
-    }
+    memset(d->config, 0, PCI_CONFIG_SPACE_SIZE);
 
     s->memory_listener = xen_pt_memory_listener;
     s->io_listener = xen_pt_io_listener;