diff mbox series

[10/21] hw/virtio/virtio-pci: Remove VIRTIO_PCI_FLAG_DISABLE_PCIE definition

Message ID 20250115232247.30364-11-philmd@linaro.org
State New
Headers show
Series hw/i386/pc: Remove deprecated 2.4 and 2.5 PC machines | expand

Commit Message

Philippe Mathieu-Daudé Jan. 15, 2025, 11:22 p.m. UTC
VIRTIO_PCI_FLAG_DISABLE_PCIE was only used by the
hw_compat_2_4[] array, via the 'x-disable-pcie=false'
property. We removed all machines using that array,
lets remove all the code around VIRTIO_PCI_FLAG_DISABLE_PCIE.

Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
---
 include/hw/virtio/virtio-pci.h | 4 ----
 hw/virtio/virtio-pci.c         | 5 +----
 2 files changed, 1 insertion(+), 8 deletions(-)

Comments

Daniel P. Berrangé Jan. 16, 2025, 10:06 a.m. UTC | #1
On Thu, Jan 16, 2025 at 12:22:36AM +0100, Philippe Mathieu-Daudé wrote:
> VIRTIO_PCI_FLAG_DISABLE_PCIE was only used by the
> hw_compat_2_4[] array, via the 'x-disable-pcie=false'
> property. We removed all machines using that array,
> lets remove all the code around VIRTIO_PCI_FLAG_DISABLE_PCIE.
> 
> Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
> ---
>  include/hw/virtio/virtio-pci.h | 4 ----
>  hw/virtio/virtio-pci.c         | 5 +----
>  2 files changed, 1 insertion(+), 8 deletions(-)

Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>


With regards,
Daniel
Thomas Huth Jan. 17, 2025, 9:08 a.m. UTC | #2
On 16/01/2025 00.22, Philippe Mathieu-Daudé wrote:
> VIRTIO_PCI_FLAG_DISABLE_PCIE was only used by the
> hw_compat_2_4[] array, via the 'x-disable-pcie=false'
> property. We removed all machines using that array,
> lets remove all the code around VIRTIO_PCI_FLAG_DISABLE_PCIE.
> 
> Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
> ---
>   include/hw/virtio/virtio-pci.h | 4 ----
>   hw/virtio/virtio-pci.c         | 5 +----
>   2 files changed, 1 insertion(+), 8 deletions(-)
> 
> diff --git a/include/hw/virtio/virtio-pci.h b/include/hw/virtio/virtio-pci.h
> index dd6eb9a4fc7..1ca7419cd43 100644
> --- a/include/hw/virtio/virtio-pci.h
> +++ b/include/hw/virtio/virtio-pci.h
> @@ -33,7 +33,6 @@ enum {
>       VIRTIO_PCI_FLAG_BUS_MASTER_BUG_MIGRATION_BIT,
>       VIRTIO_PCI_FLAG_USE_IOEVENTFD_BIT,
>       VIRTIO_PCI_FLAG_MODERN_PIO_NOTIFY_BIT,
> -    VIRTIO_PCI_FLAG_DISABLE_PCIE_BIT,
>       VIRTIO_PCI_FLAG_PAGE_PER_VQ_BIT,
>       VIRTIO_PCI_FLAG_ATS_BIT,
>       VIRTIO_PCI_FLAG_INIT_DEVERR_BIT,

I assume it's ok that the other following bits change their value here?

If so:
Reviewed-by: Thomas Huth <thuth@redhat.com>
Philippe Mathieu-Daudé Jan. 17, 2025, 4:43 p.m. UTC | #3
On 17/1/25 10:08, Thomas Huth wrote:
> On 16/01/2025 00.22, Philippe Mathieu-Daudé wrote:
>> VIRTIO_PCI_FLAG_DISABLE_PCIE was only used by the
>> hw_compat_2_4[] array, via the 'x-disable-pcie=false'
>> property. We removed all machines using that array,
>> lets remove all the code around VIRTIO_PCI_FLAG_DISABLE_PCIE.
>>
>> Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
>> ---
>>   include/hw/virtio/virtio-pci.h | 4 ----
>>   hw/virtio/virtio-pci.c         | 5 +----
>>   2 files changed, 1 insertion(+), 8 deletions(-)
>>
>> diff --git a/include/hw/virtio/virtio-pci.h b/include/hw/virtio/ 
>> virtio-pci.h
>> index dd6eb9a4fc7..1ca7419cd43 100644
>> --- a/include/hw/virtio/virtio-pci.h
>> +++ b/include/hw/virtio/virtio-pci.h
>> @@ -33,7 +33,6 @@ enum {
>>       VIRTIO_PCI_FLAG_BUS_MASTER_BUG_MIGRATION_BIT,
>>       VIRTIO_PCI_FLAG_USE_IOEVENTFD_BIT,
>>       VIRTIO_PCI_FLAG_MODERN_PIO_NOTIFY_BIT,
>> -    VIRTIO_PCI_FLAG_DISABLE_PCIE_BIT,
>>       VIRTIO_PCI_FLAG_PAGE_PER_VQ_BIT,
>>       VIRTIO_PCI_FLAG_ATS_BIT,
>>       VIRTIO_PCI_FLAG_INIT_DEVERR_BIT,
> 
> I assume it's ok that the other following bits change their value here?

I followed previous commit 9a4c0e220d8 ("hw/virtio-pci:
fix virtio behaviour"):

diff --git a/hw/virtio/virtio-pci.h b/hw/virtio/virtio-pci.h
index e4548c2f970..25fbf8a375d 100644
--- a/hw/virtio/virtio-pci.h
+++ b/hw/virtio/virtio-pci.h
@@ -61,8 +61,6 @@ typedef struct VirtioBusClass VirtioPCIBusClass;
  enum {
      VIRTIO_PCI_FLAG_BUS_MASTER_BUG_MIGRATION_BIT,
      VIRTIO_PCI_FLAG_USE_IOEVENTFD_BIT,
-    VIRTIO_PCI_FLAG_DISABLE_LEGACY_BIT,
-    VIRTIO_PCI_FLAG_DISABLE_MODERN_BIT,
      VIRTIO_PCI_FLAG_MIGRATE_EXTRA_BIT,
      VIRTIO_PCI_FLAG_MODERN_PIO_NOTIFY_BIT,
      VIRTIO_PCI_FLAG_DISABLE_PCIE_BIT,

> 
> If so:
> Reviewed-by: Thomas Huth <thuth@redhat.com>

Thanks!
Thomas Huth Jan. 17, 2025, 6:43 p.m. UTC | #4
On 17/01/2025 17.43, Philippe Mathieu-Daudé wrote:
> On 17/1/25 10:08, Thomas Huth wrote:
>> On 16/01/2025 00.22, Philippe Mathieu-Daudé wrote:
>>> VIRTIO_PCI_FLAG_DISABLE_PCIE was only used by the
>>> hw_compat_2_4[] array, via the 'x-disable-pcie=false'
>>> property. We removed all machines using that array,
>>> lets remove all the code around VIRTIO_PCI_FLAG_DISABLE_PCIE.
>>>
>>> Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
>>> ---
>>>   include/hw/virtio/virtio-pci.h | 4 ----
>>>   hw/virtio/virtio-pci.c         | 5 +----
>>>   2 files changed, 1 insertion(+), 8 deletions(-)
>>>
>>> diff --git a/include/hw/virtio/virtio-pci.h b/include/hw/virtio/ virtio- 
>>> pci.h
>>> index dd6eb9a4fc7..1ca7419cd43 100644
>>> --- a/include/hw/virtio/virtio-pci.h
>>> +++ b/include/hw/virtio/virtio-pci.h
>>> @@ -33,7 +33,6 @@ enum {
>>>       VIRTIO_PCI_FLAG_BUS_MASTER_BUG_MIGRATION_BIT,
>>>       VIRTIO_PCI_FLAG_USE_IOEVENTFD_BIT,
>>>       VIRTIO_PCI_FLAG_MODERN_PIO_NOTIFY_BIT,
>>> -    VIRTIO_PCI_FLAG_DISABLE_PCIE_BIT,
>>>       VIRTIO_PCI_FLAG_PAGE_PER_VQ_BIT,
>>>       VIRTIO_PCI_FLAG_ATS_BIT,
>>>       VIRTIO_PCI_FLAG_INIT_DEVERR_BIT,
>>
>> I assume it's ok that the other following bits change their value here?
> 
> I followed previous commit 9a4c0e220d8 ("hw/virtio-pci:
> fix virtio behaviour"):
> 
> diff --git a/hw/virtio/virtio-pci.h b/hw/virtio/virtio-pci.h
> index e4548c2f970..25fbf8a375d 100644
> --- a/hw/virtio/virtio-pci.h
> +++ b/hw/virtio/virtio-pci.h
> @@ -61,8 +61,6 @@ typedef struct VirtioBusClass VirtioPCIBusClass;
>   enum {
>       VIRTIO_PCI_FLAG_BUS_MASTER_BUG_MIGRATION_BIT,
>       VIRTIO_PCI_FLAG_USE_IOEVENTFD_BIT,
> -    VIRTIO_PCI_FLAG_DISABLE_LEGACY_BIT,
> -    VIRTIO_PCI_FLAG_DISABLE_MODERN_BIT,
>       VIRTIO_PCI_FLAG_MIGRATE_EXTRA_BIT,
>       VIRTIO_PCI_FLAG_MODERN_PIO_NOTIFY_BIT,
>       VIRTIO_PCI_FLAG_DISABLE_PCIE_BIT,

Ok, if it has been done before and nobody complained, the exact numbering 
likely doesn't matter here :-)

  Thomas
diff mbox series

Patch

diff --git a/include/hw/virtio/virtio-pci.h b/include/hw/virtio/virtio-pci.h
index dd6eb9a4fc7..1ca7419cd43 100644
--- a/include/hw/virtio/virtio-pci.h
+++ b/include/hw/virtio/virtio-pci.h
@@ -33,7 +33,6 @@  enum {
     VIRTIO_PCI_FLAG_BUS_MASTER_BUG_MIGRATION_BIT,
     VIRTIO_PCI_FLAG_USE_IOEVENTFD_BIT,
     VIRTIO_PCI_FLAG_MODERN_PIO_NOTIFY_BIT,
-    VIRTIO_PCI_FLAG_DISABLE_PCIE_BIT,
     VIRTIO_PCI_FLAG_PAGE_PER_VQ_BIT,
     VIRTIO_PCI_FLAG_ATS_BIT,
     VIRTIO_PCI_FLAG_INIT_DEVERR_BIT,
@@ -53,9 +52,6 @@  enum {
  * vcpu thread using ioeventfd for some devices. */
 #define VIRTIO_PCI_FLAG_USE_IOEVENTFD   (1 << VIRTIO_PCI_FLAG_USE_IOEVENTFD_BIT)
 
-/* virtio version flags */
-#define VIRTIO_PCI_FLAG_DISABLE_PCIE (1 << VIRTIO_PCI_FLAG_DISABLE_PCIE_BIT)
-
 /* have pio notification for modern device ? */
 #define VIRTIO_PCI_FLAG_MODERN_PIO_NOTIFY \
     (1 << VIRTIO_PCI_FLAG_MODERN_PIO_NOTIFY_BIT)
diff --git a/hw/virtio/virtio-pci.c b/hw/virtio/virtio-pci.c
index 8dca3ae73e6..2f2c6b13863 100644
--- a/hw/virtio/virtio-pci.c
+++ b/hw/virtio/virtio-pci.c
@@ -2347,8 +2347,6 @@  static const Property virtio_pci_properties[] = {
                     VIRTIO_PCI_FLAG_BUS_MASTER_BUG_MIGRATION_BIT, false),
     DEFINE_PROP_BIT("modern-pio-notify", VirtIOPCIProxy, flags,
                     VIRTIO_PCI_FLAG_MODERN_PIO_NOTIFY_BIT, false),
-    DEFINE_PROP_BIT("x-disable-pcie", VirtIOPCIProxy, flags,
-                    VIRTIO_PCI_FLAG_DISABLE_PCIE_BIT, false),
     DEFINE_PROP_BIT("page-per-vq", VirtIOPCIProxy, flags,
                     VIRTIO_PCI_FLAG_PAGE_PER_VQ_BIT, false),
     DEFINE_PROP_BOOL("x-ignore-backend-features", VirtIOPCIProxy,
@@ -2377,8 +2375,7 @@  static void virtio_pci_dc_realize(DeviceState *qdev, Error **errp)
     VirtIOPCIProxy *proxy = VIRTIO_PCI(qdev);
     PCIDevice *pci_dev = &proxy->pci_dev;
 
-    if (!(proxy->flags & VIRTIO_PCI_FLAG_DISABLE_PCIE) &&
-        virtio_pci_modern(proxy)) {
+    if (virtio_pci_modern(proxy)) {
         pci_dev->cap_present |= QEMU_PCI_CAP_EXPRESS;
     }