diff mbox series

[v1,1/3] xen/vpci: add vpci_hw_read8 helper

Message ID 20230810191312.644235-2-stewart.hildebrand@amd.com (mailing list archive)
State Superseded
Headers show
Series vPCI capabilities filtering | expand

Commit Message

Stewart Hildebrand Aug. 10, 2023, 7:12 p.m. UTC 
This will be used in a subsequent patch.

Signed-off-by: Stewart Hildebrand <stewart.hildebrand@amd.com>
---
 xen/drivers/vpci/vpci.c | 6 ++++++
 xen/include/xen/vpci.h  | 2 ++
 2 files changed, 8 insertions(+)
diff mbox series

Patch

diff --git a/xen/drivers/vpci/vpci.c b/xen/drivers/vpci/vpci.c
index d73fa7630237..acadba1fd6c5 100644
--- a/xen/drivers/vpci/vpci.c
+++ b/xen/drivers/vpci/vpci.c
@@ -133,6 +133,12 @@  static void cf_check vpci_ignored_write(
 {
 }
 
+uint32_t cf_check vpci_hw_read8(
+    const struct pci_dev *pdev, unsigned int reg, void *data)
+{
+    return pci_conf_read8(pdev->sbdf, reg);
+}
+
 uint32_t cf_check vpci_hw_read16(
     const struct pci_dev *pdev, unsigned int reg, void *data)
 {
diff --git a/xen/include/xen/vpci.h b/xen/include/xen/vpci.h
index 0b8a2a3c745b..ee7a8fcdee83 100644
--- a/xen/include/xen/vpci.h
+++ b/xen/include/xen/vpci.h
@@ -46,6 +46,8 @@  void vpci_write(pci_sbdf_t sbdf, unsigned int reg, unsigned int size,
                 uint32_t data);
 
 /* Passthrough handlers. */
+uint32_t cf_check vpci_hw_read8(
+    const struct pci_dev *pdev, unsigned int reg, void *data);
 uint32_t cf_check vpci_hw_read16(
     const struct pci_dev *pdev, unsigned int reg, void *data);
 uint32_t cf_check vpci_hw_read32(