[xen staging] xen/arm: Transitional change to build HAS_VPCI on ARM.

[patchbot@xxxxxxx]

commit f38c8591351e29f70bdfeb7c5d360dea76fbe0a2
Author:     Rahul Singh <rahul.singh@xxxxxxx>
AuthorDate: Mon Oct 11 13:16:57 2021 -0700
Commit:     Stefano Stabellini <stefano.stabellini@xxxxxxxxxx>
CommitDate: Mon Oct 11 13:16:57 2021 -0700

    xen/arm: Transitional change to build HAS_VPCI on ARM.
    
    This patch will be reverted once we add support for VPCI MSI/MSIX
    support on ARM.
    
    Signed-off-by: Rahul Singh <rahul.singh@xxxxxxx>
    Acked-by: Stefano Stabellini <sstabellini@xxxxxxxxxx>
    Reviewed-by: Bertrand Marquis <bertrand.marquis@xxxxxxx>
    Reviewed-by: Roger Pau Monné <rogewr.pau@xxxxxxxxxx>
---
 xen/drivers/vpci/Makefile | 3 ++-
 xen/drivers/vpci/header.c | 2 ++
 xen/include/asm-arm/pci.h | 8 ++++++++
 3 files changed, 12 insertions(+), 1 deletion(-)

diff --git a/xen/drivers/vpci/Makefile b/xen/drivers/vpci/Makefile
index 55d1bdfda0..1a1413b93e 100644
--- a/xen/drivers/vpci/Makefile
+++ b/xen/drivers/vpci/Makefile
@@ -1 +1,2 @@
-obj-y += vpci.o header.o msi.o msix.o
+obj-y += vpci.o header.o
+obj-$(CONFIG_HAS_PCI_MSI) += msi.o msix.o
diff --git a/xen/drivers/vpci/header.c b/xen/drivers/vpci/header.c
index ba9a036202..f8cd55e7c0 100644
--- a/xen/drivers/vpci/header.c
+++ b/xen/drivers/vpci/header.c
@@ -96,8 +96,10 @@ static void modify_decoding(const struct pci_dev *pdev, 
uint16_t cmd,
      * FIXME: punching holes after the p2m has been set up might be racy for
      * DomU usage, needs to be revisited.
      */
+#ifdef CONFIG_HAS_PCI_MSI
     if ( map && !rom_only && vpci_make_msix_hole(pdev) )
         return;
+#endif
 
     for ( i = 0; i < ARRAY_SIZE(header->bars); i++ )
     {
diff --git a/xen/include/asm-arm/pci.h b/xen/include/asm-arm/pci.h
index 00ccc3161b..aa0762ff15 100644
--- a/xen/include/asm-arm/pci.h
+++ b/xen/include/asm-arm/pci.h
@@ -26,6 +26,14 @@ struct arch_pci_dev {
     struct device dev;
 };
 
+/* Arch-specific MSI data for vPCI. */
+struct vpci_arch_msi {
+};
+
+/* Arch-specific MSI-X entry data for vPCI. */
+struct vpci_arch_msix_entry {
+};
+
 /*
  * Because of the header cross-dependencies, e.g. we need both
  * struct pci_dev and struct arch_pci_dev at the same time, this cannot be
--
generated by git-patchbot for /home/xen/git/xen.git#staging