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Re: [PATCH v9 10/16] vpci/header: emulate PCI_COMMAND register for guests
- To: Volodymyr Babchuk <Volodymyr_Babchuk@xxxxxxxx>, "xen-devel@xxxxxxxxxxxxxxxxxxxx" <xen-devel@xxxxxxxxxxxxxxxxxxxx>
- From: Stewart Hildebrand <stewart.hildebrand@xxxxxxx>
- Date: Fri, 1 Sep 2023 01:23:31 -0400
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- Cc: Oleksandr Andrushchenko <Oleksandr_Andrushchenko@xxxxxxxx>, Roger Pau Monné <roger.pau@xxxxxxxxxx>
- Delivery-date: Fri, 01 Sep 2023 05:24:02 +0000
- List-id: Xen developer discussion <xen-devel.lists.xenproject.org>
On 8/29/23 19:19, Volodymyr Babchuk wrote:
> diff --git a/xen/drivers/vpci/header.c b/xen/drivers/vpci/header.c
> index 1e82217200..e351db4620 100644
> --- a/xen/drivers/vpci/header.c
> +++ b/xen/drivers/vpci/header.c
> @@ -523,6 +546,14 @@ static void cf_check cmd_write(
> pci_conf_write16(pdev->sbdf, reg, cmd);
> }
>
> +static uint32_t guest_cmd_read(const struct pci_dev *pdev, unsigned int reg,
As this function is called indirectly, it needs a cf_check attribute
> + void *data)
> +{
> + const struct vpci_header *header = data;
> +
> + return header->guest_cmd;
> +}
> +
> static void cf_check bar_write(
> const struct pci_dev *pdev, unsigned int reg, uint32_t val, void *data)
> {
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