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Re: [PATCH v5 05/11] vfio: Avoid inspecting option QDict for rombar
From: |
Michael S. Tsirkin |
Subject: |
Re: [PATCH v5 05/11] vfio: Avoid inspecting option QDict for rombar |
Date: |
Sun, 18 Feb 2024 12:26:19 -0500 |
On Sun, Feb 18, 2024 at 01:56:10PM +0900, Akihiko Odaki wrote:
> Use pci_rom_bar_explicitly_enabled() to determine if rombar is explicitly
> enabled.
>
> Signed-off-by: Akihiko Odaki <akihiko.odaki@daynix.com>
I see little point in all this reworks: QDict lookups are
robust. But if Alex wants this change, I won't oppose it.
Alex?
> ---
> hw/vfio/pci.c | 3 +--
> 1 file changed, 1 insertion(+), 2 deletions(-)
>
> diff --git a/hw/vfio/pci.c b/hw/vfio/pci.c
> index 4fa387f0430d..647f15b2a060 100644
> --- a/hw/vfio/pci.c
> +++ b/hw/vfio/pci.c
> @@ -1012,7 +1012,6 @@ static void vfio_pci_size_rom(VFIOPCIDevice *vdev)
> {
> uint32_t orig, size = cpu_to_le32((uint32_t)PCI_ROM_ADDRESS_MASK);
> off_t offset = vdev->config_offset + PCI_ROM_ADDRESS;
> - DeviceState *dev = DEVICE(vdev);
> char *name;
> int fd = vdev->vbasedev.fd;
>
> @@ -1046,7 +1045,7 @@ static void vfio_pci_size_rom(VFIOPCIDevice *vdev)
> }
>
> if (vfio_opt_rom_in_denylist(vdev)) {
> - if (dev->opts && qdict_haskey(dev->opts, "rombar")) {
> + if (pci_rom_bar_explicitly_enabled(&vdev->pdev)) {
> warn_report("Device at %s is known to cause system instability"
> " issues during option rom execution",
> vdev->vbasedev.name);
>
> --
> 2.43.1
- [PATCH v5 00/11] hw/pci: SR-IOV related fixes and improvements, Akihiko Odaki, 2024/02/17
- [PATCH v5 01/11] hw/nvme: Use pcie_sriov_num_vfs(), Akihiko Odaki, 2024/02/17
- [PATCH v5 02/11] pcie_sriov: Validate NumVFs, Akihiko Odaki, 2024/02/17
- [PATCH v5 03/11] hw/pci: Use -1 as a default value for rombar, Akihiko Odaki, 2024/02/17
- [PATCH v5 04/11] hw/pci: Determine if rombar is explicitly enabled, Akihiko Odaki, 2024/02/17
- [PATCH v5 05/11] vfio: Avoid inspecting option QDict for rombar, Akihiko Odaki, 2024/02/17
- Re: [PATCH v5 05/11] vfio: Avoid inspecting option QDict for rombar,
Michael S. Tsirkin <=
- [PATCH v5 06/11] hw/qdev: Remove opts member, Akihiko Odaki, 2024/02/17
- [PATCH v5 07/11] pcie_sriov: Reset SR-IOV extended capability, Akihiko Odaki, 2024/02/17
- [PATCH v5 08/11] pcie_sriov: Do not reset NumVFs after disabling VFs, Akihiko Odaki, 2024/02/17
- [PATCH v5 09/11] hw/pci: Always call pcie_sriov_pf_reset(), Akihiko Odaki, 2024/02/17
- [PATCH v5 10/11] hw/pci: Rename has_power to enabled, Akihiko Odaki, 2024/02/17
- [PATCH v5 11/11] pcie_sriov: Reuse SR-IOV VF device instances, Akihiko Odaki, 2024/02/17