Re: [Xen-devel] [PATCH V12 5/9] Revert "pci: don't export an internal function"

["Michael S. Tsirkin" <mst@xxxxxxxxxx>]

On Tue, Jun 12, 2012 at 04:05:19PM +0100, Anthony PERARD wrote:
> This reverts commit 94a09e2c846374a96719cda2b4e1312d8c4b08a7.
> 
> This function is used by a later patch to parse the BDF of the device to
> passthrough.
> 
> Signed-off-by: Anthony PERARD <anthony.perard@xxxxxxxxxx>

You probably want to parse the host address?  You don't want to copy the
bugs in pci_parse_devaddr - write your own that has sane semantics
for host. E.g. you need to support ARI etc.

> ---
>  hw/pci.c |    2 +-
>  hw/pci.h |    2 ++
>  2 files changed, 3 insertions(+), 1 deletions(-)
> 
> diff --git a/hw/pci.c b/hw/pci.c
> index eec106a..5bddf7a 100644
> --- a/hw/pci.c
> +++ b/hw/pci.c
> @@ -479,7 +479,7 @@ static void pci_set_default_subsystem_id(PCIDevice 
> *pci_dev)
>   * Parse [[<domain>:]<bus>:]<slot>, return -1 on error if funcp == NULL
>   *       [[<domain>:]<bus>:]<slot>.<func>, return -1 on error
>   */
> -static int pci_parse_devaddr(const char *addr, int *domp, int *busp,
> +int pci_parse_devaddr(const char *addr, int *domp, int *busp,
>                        unsigned int *slotp, unsigned int *funcp)
>  {
>      const char *p;
> diff --git a/hw/pci.h b/hw/pci.h
> index ecf37fd..b169c0b 100644
> --- a/hw/pci.h
> +++ b/hw/pci.h
> @@ -321,6 +321,8 @@ PCIDevice *pci_find_device(PCIBus *bus, int bus_num, 
> uint8_t devfn);
>  int pci_qdev_find_device(const char *id, PCIDevice **pdev);
>  PCIBus *pci_get_bus_devfn(int *devfnp, const char *devaddr);
>  
> +int pci_parse_devaddr(const char *addr, int *domp, int *busp,
> +                      unsigned int *slotp, unsigned int *funcp);
>  int pci_read_devaddr(Monitor *mon, const char *addr, int *domp, int *busp,
>                       unsigned *slotp);
>  
> -- 
> Anthony PERARD

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