[PATCH 5 of 6 V6] libxl: bind virtual bdf to physical bdf after device assignment

[PATCH 5 of 6 V6] libxl: bind virtual bdf to physical bdf after device assignment

[Wei Wang]

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From 307dec80d03b1a7ec7048e35ca9da2f9ec942066 Mon Sep 17 00:00:00 2001
From: Wei Wang <wei.wang2@amd.com>
Date: Wed, 26 Sep 2012 11:47:55 +0200
Subject: [PATCH 5/6] libxl: bind virtual bdf to physical bdf after device assignment

Signed-off-by: Wei Wang <wei.wang2@amd.com>
---
 tools/libxl/libxl_pci.c |   10 +++++++++-
 1 files changed, 9 insertions(+), 1 deletions(-)

diff --git a/tools/libxl/libxl_pci.c b/tools/libxl/libxl_pci.c
index ff447e7..ecd5e2b 100644
--- a/tools/libxl/libxl_pci.c
+++ b/tools/libxl/libxl_pci.c
@@ -858,8 +858,9 @@ static int do_pci_add(libxl__gc *gc, uint32_t domid, libxl_device_pci *pcidev, i
 {
     libxl_ctx *ctx = libxl__gc_owner(gc);
     int rc, hvm = 0;
+    libxl_domain_type type = libxl__domain_type(gc, domid);
 
-    switch (libxl__domain_type(gc, domid)) {
+    switch (type) {
     case LIBXL_DOMAIN_TYPE_HVM:
         hvm = 1;
         if (libxl__wait_for_device_model(gc, domid, "running",
@@ -960,6 +961,13 @@ out:
             LIBXL__LOG_ERRNOVAL(ctx, LIBXL__LOG_ERROR, rc, "xc_assign_device failed");
             return ERROR_FAIL;
         }
+        if (type == LIBXL_DOMAIN_TYPE_HVM) {
+            rc = xc_domain_bind_pt_bdf(ctx->xch, domid, 0, pcidev->vdevfn, pcidev->domain, pcidev_encode_bdf(pcidev));
+            if ( rc ) {
+                LIBXL__LOG_ERRNOVAL(ctx, LIBXL__LOG_ERROR, rc, "xc_domain_bind_pt_bdf failed");
+                return ERROR_FAIL;
+            }
+        }
     }
 
     if (!starting)
-- 
1.7.4



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[PATCH 0 of 6 V6] amd iommu: support ats/gpgpu passthru on iommuv2 systems

[Wei Wang]

Hi,
This is patch set v6. It includes all pending patches that are needed to enable gpgpu passthrough and heterogeneous computing for guests.
thanks,
Wei

For more details, please refer to old threads.
http://lists.xen.org/archives/html/xen-devel/2012-02/msg00889.html
http://lists.xen.org/archives/html/xen-devel/2012-01/msg01646.html

and, for an overview of the design, please refer to
http://www.amd64.org/pub/iommuv2.png

======================================================================
changes in v6:
* Fix indentation issues.
* Fix definition of iommu_set_msi.
* Rebase on top of tip.

changes in v5:
* Remove patch 2 after upstream c/s 24729:6f6a6d1d2fb6

changes in v4:
* Only tool part in this version, since hypervisor patches have already been committed.
* rename guest config option from "iommu = {0,1}" to "guest_iommu = {0,1}"
* add description into docs/man/xl.cfg.pod.5


changes in v3:
* Use xenstore to receive guest iommu configuration instead of adding in a new field in hvm_info_table.
* Support pci segment in vbdf to mbdf bind.
* Make hypercalls visible for non-x86 platforms.
* A few code cleanups according to comments from Jan and Ian.

Changes in v2:
* Do not use linked list to access guest iommu tables.
* Do not parse iommu parameter in libxl_device_model_info again.
* Fix incorrect logical calculation in patch 11.
* Fix hypercall definition for non-x86 systems. 

[PATCH 5 of 6 V6] libxl: bind virtual bdf to physical bdf after device assignment

[Wei Wang]

# HG changeset patch
# User Wei Wang <wei.wang2@amd.com>
# Date 1331210222 -3600
# Node ID 0a1de2dea27370d71d2572869d363d9e5833648e
# Parent  d3c4ac0b7cc771ce9639cf3f9f14c0e10d85784d
libxl: bind virtual bdf to physical bdf after device assignment

Signed-off-by: Wei Wang <wei.wang2@amd.com>
Acked-by: Ian Jackson<ian.jackson@eu.citrix.com>

diff -r d3c4ac0b7cc7 -r 0a1de2dea273 tools/libxl/libxl_pci.c
--- a/tools/libxl/libxl_pci.c	Thu Mar 08 13:36:59 2012 +0100
+++ b/tools/libxl/libxl_pci.c	Thu Mar 08 13:37:02 2012 +0100
@@ -720,6 +720,13 @@ out:
             LIBXL__LOG_ERRNOVAL(ctx, LIBXL__LOG_ERROR, rc, "xc_assign_device failed");
             return ERROR_FAIL;
         }
+        if (LIBXL__DOMAIN_IS_TYPE(gc,  domid, HVM)) {
+            rc = xc_domain_bind_pt_bdf(ctx->xch, domid, 0, pcidev->vdevfn, pcidev->domain, pcidev_encode_bdf(pcidev));
+            if ( rc ) {
+                LIBXL__LOG_ERRNOVAL(ctx, LIBXL__LOG_ERROR, rc, "xc_domain_bind_pt_bdf failed");
+                return ERROR_FAIL;
+            }
+        }
     }
 
     if (!starting)