The vfio-user code will need to re-use various parts of the vfio PCI
code. Export them in hw/vfio/pci.h, and rename them to the vfio_pci_*
namespace.
Signed-off-by: John Levon <john.levon@nutanix.com>
---
hw/vfio/pci.h | 11 ++++++++++
hw/vfio/pci.c | 48 ++++++++++++++++++++++----------------------
hw/vfio/trace-events | 6 +++---
3 files changed, 38 insertions(+), 27 deletions(-)
diff --git a/hw/vfio/pci.h b/hw/vfio/pci.h
index 5ce0fb916f..d4c6b2e7b7 100644
--- a/hw/vfio/pci.h
+++ b/hw/vfio/pci.h
@@ -248,4 +248,15 @@ void vfio_display_finalize(VFIOPCIDevice *vdev);
extern const VMStateDescription vfio_display_vmstate;
+void vfio_pci_bars_exit(VFIOPCIDevice *vdev);
+bool vfio_pci_add_capabilities(VFIOPCIDevice *vdev, Error **errp);
+bool vfio_pci_config_setup(VFIOPCIDevice *vdev, Error **errp);
+bool vfio_pci_interrupt_setup(VFIOPCIDevice *vdev, Error **errp);
+void vfio_pci_intx_eoi(VFIODevice *vbasedev);
+void vfio_pci_put_device(VFIOPCIDevice *vdev);
+bool vfio_pci_populate_device(VFIOPCIDevice *vdev, Error **errp);
+void vfio_pci_register_err_notifier(VFIOPCIDevice *vdev);
+void vfio_pci_register_req_notifier(VFIOPCIDevice *vdev);
+void vfio_pci_teardown_msi(VFIOPCIDevice *vdev);
+
#endif /* HW_VFIO_VFIO_PCI_H */
diff --git a/hw/vfio/pci.c b/hw/vfio/pci.c
index b1250d85bf..a49405660a 100644
--- a/hw/vfio/pci.c
+++ b/hw/vfio/pci.c
@@ -103,7 +103,7 @@ static void vfio_intx_interrupt(void *opaque)
}
}
-static void vfio_intx_eoi(VFIODevice *vbasedev)
+void vfio_pci_intx_eoi(VFIODevice *vbasedev)
{
VFIOPCIDevice *vdev = container_of(vbasedev, VFIOPCIDevice, vbasedev);
@@ -111,7 +111,7 @@ static void vfio_intx_eoi(VFIODevice *vbasedev)
return;
}
- trace_vfio_intx_eoi(vbasedev->name);
+ trace_vfio_pci_intx_eoi(vbasedev->name);
vdev->intx.pending = false;
pci_irq_deassert(&vdev->pdev);
@@ -236,7 +236,7 @@ static void vfio_intx_update(VFIOPCIDevice *vdev, PCIINTxRoute *route)
}
/* Re-enable the interrupt in cased we missed an EOI */
- vfio_intx_eoi(&vdev->vbasedev);
+ vfio_pci_intx_eoi(&vdev->vbasedev);
}
static void vfio_intx_routing_notifier(PCIDevice *pdev)
@@ -1743,7 +1743,7 @@ static bool vfio_msix_setup(VFIOPCIDevice *vdev, int pos, Error **errp)
return true;
}
-static void vfio_teardown_msi(VFIOPCIDevice *vdev)
+void vfio_pci_teardown_msi(VFIOPCIDevice *vdev)
{
msi_uninit(&vdev->pdev);
@@ -1839,7 +1839,7 @@ static void vfio_bars_register(VFIOPCIDevice *vdev)
}
}
-static void vfio_bars_exit(VFIOPCIDevice *vdev)
+void vfio_pci_bars_exit(VFIOPCIDevice *vdev)
{
int i;
@@ -2430,7 +2430,7 @@ static void vfio_add_ext_cap(VFIOPCIDevice *vdev)
g_free(config);
}
-static bool vfio_add_capabilities(VFIOPCIDevice *vdev, Error **errp)
+bool vfio_pci_add_capabilities(VFIOPCIDevice *vdev, Error **errp)
{
PCIDevice *pdev = &vdev->pdev;
@@ -2706,7 +2706,7 @@ static int vfio_pci_load_config(VFIODevice *vbasedev, QEMUFile *f)
static VFIODeviceOps vfio_pci_ops = {
.vfio_compute_needs_reset = vfio_pci_compute_needs_reset,
.vfio_hot_reset_multi = vfio_pci_hot_reset_multi,
- .vfio_eoi = vfio_intx_eoi,
+ .vfio_eoi = vfio_pci_intx_eoi,
.vfio_get_object = vfio_pci_get_object,
.vfio_save_config = vfio_pci_save_config,
.vfio_load_config = vfio_pci_load_config,
@@ -2777,7 +2777,7 @@ bool vfio_populate_vga(VFIOPCIDevice *vdev, Error **errp)
return true;
}
-static bool vfio_populate_device(VFIOPCIDevice *vdev, Error **errp)
+bool vfio_pci_populate_device(VFIOPCIDevice *vdev, Error **errp)
{
VFIODevice *vbasedev = &vdev->vbasedev;
struct vfio_region_info *reg_info = NULL;
@@ -2823,7 +2823,7 @@ static bool vfio_populate_device(VFIOPCIDevice *vdev, Error **errp)
return false;
}
- trace_vfio_populate_device_config(vdev->vbasedev.name,
+ trace_vfio_pci_populate_device_config(vdev->vbasedev.name,
(unsigned long)reg_info->size,
(unsigned long)reg_info->offset,
(unsigned long)reg_info->flags);
@@ -2845,7 +2845,7 @@ static bool vfio_populate_device(VFIOPCIDevice *vdev, Error **errp)
ret = vfio_device_get_irq_info(vbasedev, VFIO_PCI_ERR_IRQ_INDEX, &irq_info);
if (ret) {
/* This can fail for an old kernel or legacy PCI dev */
- trace_vfio_populate_device_get_irq_info_failure(strerror(-ret));
+ trace_vfio_pci_populate_device_get_irq_info_failure(strerror(-ret));
} else if (irq_info.count == 1) {
vdev->pci_aer = true;
} else {
@@ -2857,7 +2857,7 @@ static bool vfio_populate_device(VFIOPCIDevice *vdev, Error **errp)
return true;
}
-static void vfio_pci_put_device(VFIOPCIDevice *vdev)
+void vfio_pci_put_device(VFIOPCIDevice *vdev)
{
vfio_display_finalize(vdev);
vfio_bars_finalize(vdev);
@@ -2905,7 +2905,7 @@ static void vfio_err_notifier_handler(void *opaque)
* and continue after disabling error recovery support for the
* device.
*/
-static void vfio_register_err_notifier(VFIOPCIDevice *vdev)
+void vfio_pci_register_err_notifier(VFIOPCIDevice *vdev)
{
Error *err = NULL;
int32_t fd;
@@ -2964,7 +2964,7 @@ static void vfio_req_notifier_handler(void *opaque)
}
}
-static void vfio_register_req_notifier(VFIOPCIDevice *vdev)
+void vfio_pci_register_req_notifier(VFIOPCIDevice *vdev)
{
struct vfio_irq_info irq_info;
Error *err = NULL;
@@ -3018,7 +3018,7 @@ static void vfio_unregister_req_notifier(VFIOPCIDevice *vdev)
vdev->req_enabled = false;
}
-static bool vfio_pci_config_setup(VFIOPCIDevice *vdev, Error **errp)
+bool vfio_pci_config_setup(VFIOPCIDevice *vdev, Error **errp)
{
PCIDevice *pdev = &vdev->pdev;
VFIODevice *vbasedev = &vdev->vbasedev;
@@ -3124,7 +3124,7 @@ static bool vfio_pci_config_setup(VFIOPCIDevice *vdev, Error **errp)
return true;
}
-static bool vfio_interrupt_setup(VFIOPCIDevice *vdev, Error **errp)
+bool vfio_pci_interrupt_setup(VFIOPCIDevice *vdev, Error **errp)
{
PCIDevice *pdev = &vdev->pdev;
@@ -3214,7 +3214,7 @@ static void vfio_pci_realize(PCIDevice *pdev, Error **errp)
goto error;
}
- if (!vfio_populate_device(vdev, errp)) {
+ if (!vfio_pci_populate_device(vdev, errp)) {
goto error;
}
@@ -3228,7 +3228,7 @@ static void vfio_pci_realize(PCIDevice *pdev, Error **errp)
goto out_teardown;
}
- if (!vfio_add_capabilities(vdev, errp)) {
+ if (!vfio_pci_add_capabilities(vdev, errp)) {
goto out_unset_idev;
}
@@ -3244,7 +3244,7 @@ static void vfio_pci_realize(PCIDevice *pdev, Error **errp)
vfio_bar_quirk_setup(vdev, i);
}
- if (!vfio_interrupt_setup(vdev, errp)) {
+ if (!vfio_pci_interrupt_setup(vdev, errp)) {
goto out_unset_idev;
}
@@ -3288,8 +3288,8 @@ static void vfio_pci_realize(PCIDevice *pdev, Error **errp)
}
}
- vfio_register_err_notifier(vdev);
- vfio_register_req_notifier(vdev);
+ vfio_pci_register_err_notifier(vdev);
+ vfio_pci_register_req_notifier(vdev);
vfio_setup_resetfn_quirk(vdev);
return;
@@ -3310,8 +3310,8 @@ out_unset_idev:
pci_device_unset_iommu_device(pdev);
}
out_teardown:
- vfio_teardown_msi(vdev);
- vfio_bars_exit(vdev);
+ vfio_pci_teardown_msi(vdev);
+ vfio_pci_bars_exit(vdev);
error:
error_prepend(errp, VFIO_MSG_PREFIX, vbasedev->name);
}
@@ -3338,9 +3338,9 @@ static void vfio_exitfn(PCIDevice *pdev)
if (vdev->intx.mmap_timer) {
timer_free(vdev->intx.mmap_timer);
}
- vfio_teardown_msi(vdev);
+ vfio_pci_teardown_msi(vdev);
vfio_pci_disable_rp_atomics(vdev);
- vfio_bars_exit(vdev);
+ vfio_pci_bars_exit(vdev);
vfio_migration_exit(vbasedev);
if (!vbasedev->mdev) {
pci_device_unset_iommu_device(pdev);
diff --git a/hw/vfio/trace-events b/hw/vfio/trace-events
index e90ec9bff8..f06236f37b 100644
--- a/hw/vfio/trace-events
+++ b/hw/vfio/trace-events
@@ -2,7 +2,7 @@
# pci.c
vfio_intx_interrupt(const char *name, char line) " (%s) Pin %c"
-vfio_intx_eoi(const char *name) " (%s) EOI"
+vfio_pci_intx_eoi(const char *name) " (%s) EOI"
vfio_intx_enable_kvm(const char *name) " (%s) KVM INTx accel enabled"
vfio_intx_disable_kvm(const char *name) " (%s) KVM INTx accel disabled"
vfio_intx_update(const char *name, int new_irq, int target_irq) " (%s) IRQ moved %d -> %d"
@@ -35,8 +35,8 @@ vfio_pci_hot_reset(const char *name, const char *type) " (%s) %s"
vfio_pci_hot_reset_has_dep_devices(const char *name) "%s: hot reset dependent devices:"
vfio_pci_hot_reset_dep_devices(int domain, int bus, int slot, int function, int group_id) "\t%04x:%02x:%02x.%x group %d"
vfio_pci_hot_reset_result(const char *name, const char *result) "%s hot reset: %s"
-vfio_populate_device_config(const char *name, unsigned long size, unsigned long offset, unsigned long flags) "Device '%s' config: size: 0x%lx, offset: 0x%lx, flags: 0x%lx"
-vfio_populate_device_get_irq_info_failure(const char *errstr) "VFIO_DEVICE_GET_IRQ_INFO failure: %s"
+vfio_pci_populate_device_config(const char *name, unsigned long size, unsigned long offset, unsigned long flags) "Device '%s' config: size: 0x%lx, offset: 0x%lx, flags: 0x%lx"
+vfio_pci_populate_device_get_irq_info_failure(const char *errstr) "VFIO_DEVICE_GET_IRQ_INFO failure: %s"
vfio_mdev(const char *name, bool is_mdev) " (%s) is_mdev %d"
vfio_add_ext_cap_dropped(const char *name, uint16_t cap, uint16_t offset) "%s 0x%x@0x%x"
vfio_pci_reset(const char *name) " (%s)"
--
2.43.0On 6/7/25 02:10, John Levon wrote: > The vfio-user code will need to re-use various parts of the vfio PCI > code. Export them in hw/vfio/pci.h, and rename them to the vfio_pci_* > namespace. > > Signed-off-by: John Levon <john.levon@nutanix.com> > --- > hw/vfio/pci.h | 11 ++++++++++ > hw/vfio/pci.c | 48 ++++++++++++++++++++++---------------------- > hw/vfio/trace-events | 6 +++--- > 3 files changed, 38 insertions(+), 27 deletions(-) Applied to vfio-next. Thanks, C.
On 07/06/2025 01:10, John Levon wrote:
> The vfio-user code will need to re-use various parts of the vfio PCI
> code. Export them in hw/vfio/pci.h, and rename them to the vfio_pci_*
> namespace.
>
> Signed-off-by: John Levon <john.levon@nutanix.com>
> ---
> hw/vfio/pci.h | 11 ++++++++++
> hw/vfio/pci.c | 48 ++++++++++++++++++++++----------------------
> hw/vfio/trace-events | 6 +++---
> 3 files changed, 38 insertions(+), 27 deletions(-)
>
> diff --git a/hw/vfio/pci.h b/hw/vfio/pci.h
> index 5ce0fb916f..d4c6b2e7b7 100644
> --- a/hw/vfio/pci.h
> +++ b/hw/vfio/pci.h
> @@ -248,4 +248,15 @@ void vfio_display_finalize(VFIOPCIDevice *vdev);
>
> extern const VMStateDescription vfio_display_vmstate;
>
> +void vfio_pci_bars_exit(VFIOPCIDevice *vdev);
> +bool vfio_pci_add_capabilities(VFIOPCIDevice *vdev, Error **errp);
> +bool vfio_pci_config_setup(VFIOPCIDevice *vdev, Error **errp);
> +bool vfio_pci_interrupt_setup(VFIOPCIDevice *vdev, Error **errp);
> +void vfio_pci_intx_eoi(VFIODevice *vbasedev);
> +void vfio_pci_put_device(VFIOPCIDevice *vdev);
> +bool vfio_pci_populate_device(VFIOPCIDevice *vdev, Error **errp);
> +void vfio_pci_register_err_notifier(VFIOPCIDevice *vdev);
> +void vfio_pci_register_req_notifier(VFIOPCIDevice *vdev);
> +void vfio_pci_teardown_msi(VFIOPCIDevice *vdev);
> +
> #endif /* HW_VFIO_VFIO_PCI_H */
> diff --git a/hw/vfio/pci.c b/hw/vfio/pci.c
> index b1250d85bf..a49405660a 100644
> --- a/hw/vfio/pci.c
> +++ b/hw/vfio/pci.c
> @@ -103,7 +103,7 @@ static void vfio_intx_interrupt(void *opaque)
> }
> }
>
> -static void vfio_intx_eoi(VFIODevice *vbasedev)
> +void vfio_pci_intx_eoi(VFIODevice *vbasedev)
> {
> VFIOPCIDevice *vdev = container_of(vbasedev, VFIOPCIDevice, vbasedev);
>
> @@ -111,7 +111,7 @@ static void vfio_intx_eoi(VFIODevice *vbasedev)
> return;
> }
>
> - trace_vfio_intx_eoi(vbasedev->name);
> + trace_vfio_pci_intx_eoi(vbasedev->name);
>
> vdev->intx.pending = false;
> pci_irq_deassert(&vdev->pdev);
> @@ -236,7 +236,7 @@ static void vfio_intx_update(VFIOPCIDevice *vdev, PCIINTxRoute *route)
> }
>
> /* Re-enable the interrupt in cased we missed an EOI */
> - vfio_intx_eoi(&vdev->vbasedev);
> + vfio_pci_intx_eoi(&vdev->vbasedev);
> }
>
> static void vfio_intx_routing_notifier(PCIDevice *pdev)
> @@ -1743,7 +1743,7 @@ static bool vfio_msix_setup(VFIOPCIDevice *vdev, int pos, Error **errp)
> return true;
> }
>
> -static void vfio_teardown_msi(VFIOPCIDevice *vdev)
> +void vfio_pci_teardown_msi(VFIOPCIDevice *vdev)
> {
> msi_uninit(&vdev->pdev);
>
> @@ -1839,7 +1839,7 @@ static void vfio_bars_register(VFIOPCIDevice *vdev)
> }
> }
>
> -static void vfio_bars_exit(VFIOPCIDevice *vdev)
> +void vfio_pci_bars_exit(VFIOPCIDevice *vdev)
> {
> int i;
>
> @@ -2430,7 +2430,7 @@ static void vfio_add_ext_cap(VFIOPCIDevice *vdev)
> g_free(config);
> }
>
> -static bool vfio_add_capabilities(VFIOPCIDevice *vdev, Error **errp)
> +bool vfio_pci_add_capabilities(VFIOPCIDevice *vdev, Error **errp)
> {
> PCIDevice *pdev = &vdev->pdev;
>
> @@ -2706,7 +2706,7 @@ static int vfio_pci_load_config(VFIODevice *vbasedev, QEMUFile *f)
> static VFIODeviceOps vfio_pci_ops = {
> .vfio_compute_needs_reset = vfio_pci_compute_needs_reset,
> .vfio_hot_reset_multi = vfio_pci_hot_reset_multi,
> - .vfio_eoi = vfio_intx_eoi,
> + .vfio_eoi = vfio_pci_intx_eoi,
> .vfio_get_object = vfio_pci_get_object,
> .vfio_save_config = vfio_pci_save_config,
> .vfio_load_config = vfio_pci_load_config,
> @@ -2777,7 +2777,7 @@ bool vfio_populate_vga(VFIOPCIDevice *vdev, Error **errp)
> return true;
> }
>
> -static bool vfio_populate_device(VFIOPCIDevice *vdev, Error **errp)
> +bool vfio_pci_populate_device(VFIOPCIDevice *vdev, Error **errp)
> {
> VFIODevice *vbasedev = &vdev->vbasedev;
> struct vfio_region_info *reg_info = NULL;
> @@ -2823,7 +2823,7 @@ static bool vfio_populate_device(VFIOPCIDevice *vdev, Error **errp)
> return false;
> }
>
> - trace_vfio_populate_device_config(vdev->vbasedev.name,
> + trace_vfio_pci_populate_device_config(vdev->vbasedev.name,
> (unsigned long)reg_info->size,
> (unsigned long)reg_info->offset,
> (unsigned long)reg_info->flags);
> @@ -2845,7 +2845,7 @@ static bool vfio_populate_device(VFIOPCIDevice *vdev, Error **errp)
> ret = vfio_device_get_irq_info(vbasedev, VFIO_PCI_ERR_IRQ_INDEX, &irq_info);
> if (ret) {
> /* This can fail for an old kernel or legacy PCI dev */
> - trace_vfio_populate_device_get_irq_info_failure(strerror(-ret));
> + trace_vfio_pci_populate_device_get_irq_info_failure(strerror(-ret));
> } else if (irq_info.count == 1) {
> vdev->pci_aer = true;
> } else {
> @@ -2857,7 +2857,7 @@ static bool vfio_populate_device(VFIOPCIDevice *vdev, Error **errp)
> return true;
> }
>
> -static void vfio_pci_put_device(VFIOPCIDevice *vdev)
> +void vfio_pci_put_device(VFIOPCIDevice *vdev)
> {
> vfio_display_finalize(vdev);
> vfio_bars_finalize(vdev);
> @@ -2905,7 +2905,7 @@ static void vfio_err_notifier_handler(void *opaque)
> * and continue after disabling error recovery support for the
> * device.
> */
> -static void vfio_register_err_notifier(VFIOPCIDevice *vdev)
> +void vfio_pci_register_err_notifier(VFIOPCIDevice *vdev)
> {
> Error *err = NULL;
> int32_t fd;
> @@ -2964,7 +2964,7 @@ static void vfio_req_notifier_handler(void *opaque)
> }
> }
>
> -static void vfio_register_req_notifier(VFIOPCIDevice *vdev)
> +void vfio_pci_register_req_notifier(VFIOPCIDevice *vdev)
> {
> struct vfio_irq_info irq_info;
> Error *err = NULL;
> @@ -3018,7 +3018,7 @@ static void vfio_unregister_req_notifier(VFIOPCIDevice *vdev)
> vdev->req_enabled = false;
> }
>
> -static bool vfio_pci_config_setup(VFIOPCIDevice *vdev, Error **errp)
> +bool vfio_pci_config_setup(VFIOPCIDevice *vdev, Error **errp)
> {
> PCIDevice *pdev = &vdev->pdev;
> VFIODevice *vbasedev = &vdev->vbasedev;
> @@ -3124,7 +3124,7 @@ static bool vfio_pci_config_setup(VFIOPCIDevice *vdev, Error **errp)
> return true;
> }
>
> -static bool vfio_interrupt_setup(VFIOPCIDevice *vdev, Error **errp)
> +bool vfio_pci_interrupt_setup(VFIOPCIDevice *vdev, Error **errp)
> {
> PCIDevice *pdev = &vdev->pdev;
>
> @@ -3214,7 +3214,7 @@ static void vfio_pci_realize(PCIDevice *pdev, Error **errp)
> goto error;
> }
>
> - if (!vfio_populate_device(vdev, errp)) {
> + if (!vfio_pci_populate_device(vdev, errp)) {
> goto error;
> }
>
> @@ -3228,7 +3228,7 @@ static void vfio_pci_realize(PCIDevice *pdev, Error **errp)
> goto out_teardown;
> }
>
> - if (!vfio_add_capabilities(vdev, errp)) {
> + if (!vfio_pci_add_capabilities(vdev, errp)) {
> goto out_unset_idev;
> }
>
> @@ -3244,7 +3244,7 @@ static void vfio_pci_realize(PCIDevice *pdev, Error **errp)
> vfio_bar_quirk_setup(vdev, i);
> }
>
> - if (!vfio_interrupt_setup(vdev, errp)) {
> + if (!vfio_pci_interrupt_setup(vdev, errp)) {
> goto out_unset_idev;
> }
>
> @@ -3288,8 +3288,8 @@ static void vfio_pci_realize(PCIDevice *pdev, Error **errp)
> }
> }
>
> - vfio_register_err_notifier(vdev);
> - vfio_register_req_notifier(vdev);
> + vfio_pci_register_err_notifier(vdev);
> + vfio_pci_register_req_notifier(vdev);
> vfio_setup_resetfn_quirk(vdev);
>
> return;
> @@ -3310,8 +3310,8 @@ out_unset_idev:
> pci_device_unset_iommu_device(pdev);
> }
> out_teardown:
> - vfio_teardown_msi(vdev);
> - vfio_bars_exit(vdev);
> + vfio_pci_teardown_msi(vdev);
> + vfio_pci_bars_exit(vdev);
> error:
> error_prepend(errp, VFIO_MSG_PREFIX, vbasedev->name);
> }
> @@ -3338,9 +3338,9 @@ static void vfio_exitfn(PCIDevice *pdev)
> if (vdev->intx.mmap_timer) {
> timer_free(vdev->intx.mmap_timer);
> }
> - vfio_teardown_msi(vdev);
> + vfio_pci_teardown_msi(vdev);
> vfio_pci_disable_rp_atomics(vdev);
> - vfio_bars_exit(vdev);
> + vfio_pci_bars_exit(vdev);
> vfio_migration_exit(vbasedev);
> if (!vbasedev->mdev) {
> pci_device_unset_iommu_device(pdev);
> diff --git a/hw/vfio/trace-events b/hw/vfio/trace-events
> index e90ec9bff8..f06236f37b 100644
> --- a/hw/vfio/trace-events
> +++ b/hw/vfio/trace-events
> @@ -2,7 +2,7 @@
>
> # pci.c
> vfio_intx_interrupt(const char *name, char line) " (%s) Pin %c"
> -vfio_intx_eoi(const char *name) " (%s) EOI"
> +vfio_pci_intx_eoi(const char *name) " (%s) EOI"
> vfio_intx_enable_kvm(const char *name) " (%s) KVM INTx accel enabled"
> vfio_intx_disable_kvm(const char *name) " (%s) KVM INTx accel disabled"
> vfio_intx_update(const char *name, int new_irq, int target_irq) " (%s) IRQ moved %d -> %d"
> @@ -35,8 +35,8 @@ vfio_pci_hot_reset(const char *name, const char *type) " (%s) %s"
> vfio_pci_hot_reset_has_dep_devices(const char *name) "%s: hot reset dependent devices:"
> vfio_pci_hot_reset_dep_devices(int domain, int bus, int slot, int function, int group_id) "\t%04x:%02x:%02x.%x group %d"
> vfio_pci_hot_reset_result(const char *name, const char *result) "%s hot reset: %s"
> -vfio_populate_device_config(const char *name, unsigned long size, unsigned long offset, unsigned long flags) "Device '%s' config: size: 0x%lx, offset: 0x%lx, flags: 0x%lx"
> -vfio_populate_device_get_irq_info_failure(const char *errstr) "VFIO_DEVICE_GET_IRQ_INFO failure: %s"
> +vfio_pci_populate_device_config(const char *name, unsigned long size, unsigned long offset, unsigned long flags) "Device '%s' config: size: 0x%lx, offset: 0x%lx, flags: 0x%lx"
> +vfio_pci_populate_device_get_irq_info_failure(const char *errstr) "VFIO_DEVICE_GET_IRQ_INFO failure: %s"
> vfio_mdev(const char *name, bool is_mdev) " (%s) is_mdev %d"
> vfio_add_ext_cap_dropped(const char *name, uint16_t cap, uint16_t offset) "%s 0x%x@0x%x"
> vfio_pci_reset(const char *name) " (%s)"
Reviewed-by: Mark Cave-Ayland <mark.caveayland@nutanix.com>
ATB,
Mark.
On 6/7/25 02:10, John Levon wrote:
> The vfio-user code will need to re-use various parts of the vfio PCI
> code. Export them in hw/vfio/pci.h, and rename them to the vfio_pci_*
> namespace.
>
> Signed-off-by: John Levon <john.levon@nutanix.com>
Reviewed-by: Cédric Le Goater <clg@redhat.com>
Thanks,
C.
> ---
> hw/vfio/pci.h | 11 ++++++++++
> hw/vfio/pci.c | 48 ++++++++++++++++++++++----------------------
> hw/vfio/trace-events | 6 +++---
> 3 files changed, 38 insertions(+), 27 deletions(-)
>
> diff --git a/hw/vfio/pci.h b/hw/vfio/pci.h
> index 5ce0fb916f..d4c6b2e7b7 100644
> --- a/hw/vfio/pci.h
> +++ b/hw/vfio/pci.h
> @@ -248,4 +248,15 @@ void vfio_display_finalize(VFIOPCIDevice *vdev);
>
> extern const VMStateDescription vfio_display_vmstate;
>
> +void vfio_pci_bars_exit(VFIOPCIDevice *vdev);
> +bool vfio_pci_add_capabilities(VFIOPCIDevice *vdev, Error **errp);
> +bool vfio_pci_config_setup(VFIOPCIDevice *vdev, Error **errp);
> +bool vfio_pci_interrupt_setup(VFIOPCIDevice *vdev, Error **errp);
> +void vfio_pci_intx_eoi(VFIODevice *vbasedev);
> +void vfio_pci_put_device(VFIOPCIDevice *vdev);
> +bool vfio_pci_populate_device(VFIOPCIDevice *vdev, Error **errp);
> +void vfio_pci_register_err_notifier(VFIOPCIDevice *vdev);
> +void vfio_pci_register_req_notifier(VFIOPCIDevice *vdev);
> +void vfio_pci_teardown_msi(VFIOPCIDevice *vdev);
> +
> #endif /* HW_VFIO_VFIO_PCI_H */
> diff --git a/hw/vfio/pci.c b/hw/vfio/pci.c
> index b1250d85bf..a49405660a 100644
> --- a/hw/vfio/pci.c
> +++ b/hw/vfio/pci.c
> @@ -103,7 +103,7 @@ static void vfio_intx_interrupt(void *opaque)
> }
> }
>
> -static void vfio_intx_eoi(VFIODevice *vbasedev)
> +void vfio_pci_intx_eoi(VFIODevice *vbasedev)
> {
> VFIOPCIDevice *vdev = container_of(vbasedev, VFIOPCIDevice, vbasedev);
>
> @@ -111,7 +111,7 @@ static void vfio_intx_eoi(VFIODevice *vbasedev)
> return;
> }
>
> - trace_vfio_intx_eoi(vbasedev->name);
> + trace_vfio_pci_intx_eoi(vbasedev->name);
>
> vdev->intx.pending = false;
> pci_irq_deassert(&vdev->pdev);
> @@ -236,7 +236,7 @@ static void vfio_intx_update(VFIOPCIDevice *vdev, PCIINTxRoute *route)
> }
>
> /* Re-enable the interrupt in cased we missed an EOI */
> - vfio_intx_eoi(&vdev->vbasedev);
> + vfio_pci_intx_eoi(&vdev->vbasedev);
> }
>
> static void vfio_intx_routing_notifier(PCIDevice *pdev)
> @@ -1743,7 +1743,7 @@ static bool vfio_msix_setup(VFIOPCIDevice *vdev, int pos, Error **errp)
> return true;
> }
>
> -static void vfio_teardown_msi(VFIOPCIDevice *vdev)
> +void vfio_pci_teardown_msi(VFIOPCIDevice *vdev)
> {
> msi_uninit(&vdev->pdev);
>
> @@ -1839,7 +1839,7 @@ static void vfio_bars_register(VFIOPCIDevice *vdev)
> }
> }
>
> -static void vfio_bars_exit(VFIOPCIDevice *vdev)
> +void vfio_pci_bars_exit(VFIOPCIDevice *vdev)
> {
> int i;
>
> @@ -2430,7 +2430,7 @@ static void vfio_add_ext_cap(VFIOPCIDevice *vdev)
> g_free(config);
> }
>
> -static bool vfio_add_capabilities(VFIOPCIDevice *vdev, Error **errp)
> +bool vfio_pci_add_capabilities(VFIOPCIDevice *vdev, Error **errp)
> {
> PCIDevice *pdev = &vdev->pdev;
>
> @@ -2706,7 +2706,7 @@ static int vfio_pci_load_config(VFIODevice *vbasedev, QEMUFile *f)
> static VFIODeviceOps vfio_pci_ops = {
> .vfio_compute_needs_reset = vfio_pci_compute_needs_reset,
> .vfio_hot_reset_multi = vfio_pci_hot_reset_multi,
> - .vfio_eoi = vfio_intx_eoi,
> + .vfio_eoi = vfio_pci_intx_eoi,
> .vfio_get_object = vfio_pci_get_object,
> .vfio_save_config = vfio_pci_save_config,
> .vfio_load_config = vfio_pci_load_config,
> @@ -2777,7 +2777,7 @@ bool vfio_populate_vga(VFIOPCIDevice *vdev, Error **errp)
> return true;
> }
>
> -static bool vfio_populate_device(VFIOPCIDevice *vdev, Error **errp)
> +bool vfio_pci_populate_device(VFIOPCIDevice *vdev, Error **errp)
> {
> VFIODevice *vbasedev = &vdev->vbasedev;
> struct vfio_region_info *reg_info = NULL;
> @@ -2823,7 +2823,7 @@ static bool vfio_populate_device(VFIOPCIDevice *vdev, Error **errp)
> return false;
> }
>
> - trace_vfio_populate_device_config(vdev->vbasedev.name,
> + trace_vfio_pci_populate_device_config(vdev->vbasedev.name,
> (unsigned long)reg_info->size,
> (unsigned long)reg_info->offset,
> (unsigned long)reg_info->flags);
> @@ -2845,7 +2845,7 @@ static bool vfio_populate_device(VFIOPCIDevice *vdev, Error **errp)
> ret = vfio_device_get_irq_info(vbasedev, VFIO_PCI_ERR_IRQ_INDEX, &irq_info);
> if (ret) {
> /* This can fail for an old kernel or legacy PCI dev */
> - trace_vfio_populate_device_get_irq_info_failure(strerror(-ret));
> + trace_vfio_pci_populate_device_get_irq_info_failure(strerror(-ret));
> } else if (irq_info.count == 1) {
> vdev->pci_aer = true;
> } else {
> @@ -2857,7 +2857,7 @@ static bool vfio_populate_device(VFIOPCIDevice *vdev, Error **errp)
> return true;
> }
>
> -static void vfio_pci_put_device(VFIOPCIDevice *vdev)
> +void vfio_pci_put_device(VFIOPCIDevice *vdev)
> {
> vfio_display_finalize(vdev);
> vfio_bars_finalize(vdev);
> @@ -2905,7 +2905,7 @@ static void vfio_err_notifier_handler(void *opaque)
> * and continue after disabling error recovery support for the
> * device.
> */
> -static void vfio_register_err_notifier(VFIOPCIDevice *vdev)
> +void vfio_pci_register_err_notifier(VFIOPCIDevice *vdev)
> {
> Error *err = NULL;
> int32_t fd;
> @@ -2964,7 +2964,7 @@ static void vfio_req_notifier_handler(void *opaque)
> }
> }
>
> -static void vfio_register_req_notifier(VFIOPCIDevice *vdev)
> +void vfio_pci_register_req_notifier(VFIOPCIDevice *vdev)
> {
> struct vfio_irq_info irq_info;
> Error *err = NULL;
> @@ -3018,7 +3018,7 @@ static void vfio_unregister_req_notifier(VFIOPCIDevice *vdev)
> vdev->req_enabled = false;
> }
>
> -static bool vfio_pci_config_setup(VFIOPCIDevice *vdev, Error **errp)
> +bool vfio_pci_config_setup(VFIOPCIDevice *vdev, Error **errp)
> {
> PCIDevice *pdev = &vdev->pdev;
> VFIODevice *vbasedev = &vdev->vbasedev;
> @@ -3124,7 +3124,7 @@ static bool vfio_pci_config_setup(VFIOPCIDevice *vdev, Error **errp)
> return true;
> }
>
> -static bool vfio_interrupt_setup(VFIOPCIDevice *vdev, Error **errp)
> +bool vfio_pci_interrupt_setup(VFIOPCIDevice *vdev, Error **errp)
> {
> PCIDevice *pdev = &vdev->pdev;
>
> @@ -3214,7 +3214,7 @@ static void vfio_pci_realize(PCIDevice *pdev, Error **errp)
> goto error;
> }
>
> - if (!vfio_populate_device(vdev, errp)) {
> + if (!vfio_pci_populate_device(vdev, errp)) {
> goto error;
> }
>
> @@ -3228,7 +3228,7 @@ static void vfio_pci_realize(PCIDevice *pdev, Error **errp)
> goto out_teardown;
> }
>
> - if (!vfio_add_capabilities(vdev, errp)) {
> + if (!vfio_pci_add_capabilities(vdev, errp)) {
> goto out_unset_idev;
> }
>
> @@ -3244,7 +3244,7 @@ static void vfio_pci_realize(PCIDevice *pdev, Error **errp)
> vfio_bar_quirk_setup(vdev, i);
> }
>
> - if (!vfio_interrupt_setup(vdev, errp)) {
> + if (!vfio_pci_interrupt_setup(vdev, errp)) {
> goto out_unset_idev;
> }
>
> @@ -3288,8 +3288,8 @@ static void vfio_pci_realize(PCIDevice *pdev, Error **errp)
> }
> }
>
> - vfio_register_err_notifier(vdev);
> - vfio_register_req_notifier(vdev);
> + vfio_pci_register_err_notifier(vdev);
> + vfio_pci_register_req_notifier(vdev);
> vfio_setup_resetfn_quirk(vdev);
>
> return;
> @@ -3310,8 +3310,8 @@ out_unset_idev:
> pci_device_unset_iommu_device(pdev);
> }
> out_teardown:
> - vfio_teardown_msi(vdev);
> - vfio_bars_exit(vdev);
> + vfio_pci_teardown_msi(vdev);
> + vfio_pci_bars_exit(vdev);
> error:
> error_prepend(errp, VFIO_MSG_PREFIX, vbasedev->name);
> }
> @@ -3338,9 +3338,9 @@ static void vfio_exitfn(PCIDevice *pdev)
> if (vdev->intx.mmap_timer) {
> timer_free(vdev->intx.mmap_timer);
> }
> - vfio_teardown_msi(vdev);
> + vfio_pci_teardown_msi(vdev);
> vfio_pci_disable_rp_atomics(vdev);
> - vfio_bars_exit(vdev);
> + vfio_pci_bars_exit(vdev);
> vfio_migration_exit(vbasedev);
> if (!vbasedev->mdev) {
> pci_device_unset_iommu_device(pdev);
> diff --git a/hw/vfio/trace-events b/hw/vfio/trace-events
> index e90ec9bff8..f06236f37b 100644
> --- a/hw/vfio/trace-events
> +++ b/hw/vfio/trace-events
> @@ -2,7 +2,7 @@
>
> # pci.c
> vfio_intx_interrupt(const char *name, char line) " (%s) Pin %c"
> -vfio_intx_eoi(const char *name) " (%s) EOI"
> +vfio_pci_intx_eoi(const char *name) " (%s) EOI"
> vfio_intx_enable_kvm(const char *name) " (%s) KVM INTx accel enabled"
> vfio_intx_disable_kvm(const char *name) " (%s) KVM INTx accel disabled"
> vfio_intx_update(const char *name, int new_irq, int target_irq) " (%s) IRQ moved %d -> %d"
> @@ -35,8 +35,8 @@ vfio_pci_hot_reset(const char *name, const char *type) " (%s) %s"
> vfio_pci_hot_reset_has_dep_devices(const char *name) "%s: hot reset dependent devices:"
> vfio_pci_hot_reset_dep_devices(int domain, int bus, int slot, int function, int group_id) "\t%04x:%02x:%02x.%x group %d"
> vfio_pci_hot_reset_result(const char *name, const char *result) "%s hot reset: %s"
> -vfio_populate_device_config(const char *name, unsigned long size, unsigned long offset, unsigned long flags) "Device '%s' config: size: 0x%lx, offset: 0x%lx, flags: 0x%lx"
> -vfio_populate_device_get_irq_info_failure(const char *errstr) "VFIO_DEVICE_GET_IRQ_INFO failure: %s"
> +vfio_pci_populate_device_config(const char *name, unsigned long size, unsigned long offset, unsigned long flags) "Device '%s' config: size: 0x%lx, offset: 0x%lx, flags: 0x%lx"
> +vfio_pci_populate_device_get_irq_info_failure(const char *errstr) "VFIO_DEVICE_GET_IRQ_INFO failure: %s"
> vfio_mdev(const char *name, bool is_mdev) " (%s) is_mdev %d"
> vfio_add_ext_cap_dropped(const char *name, uint16_t cap, uint16_t offset) "%s 0x%x@0x%x"
> vfio_pci_reset(const char *name) " (%s)"
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