From: Stewart Hildebrand <stewart.hildebrand@amd.com>

Export functions required for SR-IOV support.

Signed-off-by: Stewart Hildebrand <stewart.hildebrand@amd.com>
Signed-off-by: Mykyta Poturai <mykyta_poturai@epam.com>
Reviewed-by: Teddy Astie <teddy.astie@vates.tech>
---
v1->v2:
* collect RBs
---
 xen/drivers/vpci/header.c | 20 +++++++++++---------
 xen/include/xen/vpci.h    |  6 ++++++
 2 files changed, 17 insertions(+), 9 deletions(-)

diff --git a/xen/drivers/vpci/header.c b/xen/drivers/vpci/header.c
index 5202518e83..07ec991a12 100644
--- a/xen/drivers/vpci/header.c
+++ b/xen/drivers/vpci/header.c
@@ -610,9 +610,9 @@ static void cf_check bar_write(
     pci_conf_write32(pdev->sbdf, reg, val);
 }
 
-static void cf_check guest_mem_bar_write(const struct pci_dev *pdev,
-                                         unsigned int reg, uint32_t val,
-                                         void *data)
+void cf_check vpci_guest_mem_bar_write(const struct pci_dev *pdev,
+                                       unsigned int reg, uint32_t val,
+                                       void *data)
 {
     struct vpci_bar *bar = data;
     bool hi = false;
@@ -652,8 +652,8 @@ static void cf_check guest_mem_bar_write(const struct pci_dev *pdev,
     bar->guest_addr = guest_addr;
 }
 
-static uint32_t cf_check guest_mem_bar_read(const struct pci_dev *pdev,
-                                            unsigned int reg, void *data)
+uint32_t cf_check vpci_guest_mem_bar_read(const struct pci_dev *pdev,
+                                          unsigned int reg, void *data)
 {
     const struct vpci_bar *bar = data;
     uint32_t reg_val;
@@ -959,8 +959,9 @@ int vpci_init_header(struct pci_dev *pdev)
             bars[i].type = VPCI_BAR_MEM64_HI;
             rc = vpci_add_register(pdev->vpci,
                                    is_hwdom ? vpci_hw_read32
-                                            : guest_mem_bar_read,
-                                   is_hwdom ? bar_write : guest_mem_bar_write,
+                                            : vpci_guest_mem_bar_read,
+                                   is_hwdom ? bar_write
+                                            : vpci_guest_mem_bar_write,
                                    reg, 4, &bars[i]);
             if ( rc )
                 goto fail;
@@ -1018,8 +1019,9 @@ int vpci_init_header(struct pci_dev *pdev)
         bars[i].prefetchable = val & PCI_BASE_ADDRESS_MEM_PREFETCH;
 
         rc = vpci_add_register(pdev->vpci,
-                               is_hwdom ? vpci_hw_read32 : guest_mem_bar_read,
-                               is_hwdom ? bar_write : guest_mem_bar_write,
+                               is_hwdom ? vpci_hw_read32
+                                        : vpci_guest_mem_bar_read,
+                               is_hwdom ? bar_write : vpci_guest_mem_bar_write,
                                reg, 4, &bars[i]);
         if ( rc )
             goto fail;
diff --git a/xen/include/xen/vpci.h b/xen/include/xen/vpci.h
index a98ddbb32e..dd233b8b03 100644
--- a/xen/include/xen/vpci.h
+++ b/xen/include/xen/vpci.h
@@ -78,6 +78,12 @@ void vpci_write(pci_sbdf_t sbdf, unsigned int reg, unsigned int size,
 uint32_t cf_check vpci_read_val(
     const struct pci_dev *pdev, unsigned int reg, void *data);
 
+void cf_check vpci_guest_mem_bar_write(const struct pci_dev *pdev,
+                                       unsigned int reg, uint32_t val,
+                                       void *data);
+uint32_t cf_check vpci_guest_mem_bar_read(const struct pci_dev *pdev,
+                                          unsigned int reg, void *data);
+
 /* Passthrough handlers. */
 uint32_t cf_check vpci_hw_read8(
     const struct pci_dev *pdev, unsigned int reg, void *data);
-- 
2.51.2

On 3/9/26 07:08, Mykyta Poturai wrote:
> diff --git a/xen/include/xen/vpci.h b/xen/include/xen/vpci.h
> index a98ddbb32e..dd233b8b03 100644
> --- a/xen/include/xen/vpci.h
> +++ b/xen/include/xen/vpci.h
> @@ -78,6 +78,12 @@ void vpci_write(pci_sbdf_t sbdf, unsigned int reg, unsigned int size,
>  uint32_t cf_check vpci_read_val(
>      const struct pci_dev *pdev, unsigned int reg, void *data);
>  
> +void cf_check vpci_guest_mem_bar_write(const struct pci_dev *pdev,
> +                                       unsigned int reg, uint32_t val,
> +                                       void *data);
> +uint32_t cf_check vpci_guest_mem_bar_read(const struct pci_dev *pdev,
> +                                          unsigned int reg, void *data);
> +

These prototypes should be moved to private.h

>  /* Passthrough handlers. */
>  uint32_t cf_check vpci_hw_read8(
>      const struct pci_dev *pdev, unsigned int reg, void *data);