Re: [Qemu-devel] [PATCH 2/2] all vga: fail graicefully when vga ports are taken

[Blue Swirl <blauwirbel@gmail.com>]

On 5/11/10, Gerd Hoffmann <kraxel@redhat.com> wrote:
> Try to pci hotplug a vga card, watch qemu die with hw_error().
>  This patch fixes it.
>
>  Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
>  ---
>   hw/cirrus_vga.c |    3 +++
>   hw/vga-pci.c    |    3 +++
>   hw/vmware_vga.c |    3 +++
>   3 files changed, 9 insertions(+), 0 deletions(-)
>
>  diff --git a/hw/cirrus_vga.c b/hw/cirrus_vga.c
>  index 9f61a01..2f50e86 100644
>  --- a/hw/cirrus_vga.c
>  +++ b/hw/cirrus_vga.c
>  @@ -3189,6 +3189,9 @@ static int pci_cirrus_vga_initfn(PCIDevice *dev)
>       uint8_t *pci_conf = d->dev.config;
>       int device_id = CIRRUS_ID_CLGD5446;
>
>  +     if (is_ioport_assigned(0x3c0))
>  +         return -1;
>  +

-ECODING_STYLE.

>       /* setup VGA */
>       vga_common_init(&s->vga, VGA_RAM_SIZE);
>       cirrus_init_common(s, device_id, 1);
>  diff --git a/hw/vga-pci.c b/hw/vga-pci.c
>  index c8d260c..2ef3278 100644
>  --- a/hw/vga-pci.c
>  +++ b/hw/vga-pci.c
>  @@ -79,6 +79,9 @@ static int pci_vga_initfn(PCIDevice *dev)
>       VGACommonState *s = &d->vga;
>       uint8_t *pci_conf = d->dev.config;
>
>  +     if (is_ioport_assigned(0x3c0))
>  +         return -1;
>  +
>       // vga + console init
>       vga_common_init(s, VGA_RAM_SIZE);
>       vga_init(s);
>  diff --git a/hw/vmware_vga.c b/hw/vmware_vga.c
>  index 4e7a75d..cd0eb57 100644
>  --- a/hw/vmware_vga.c
>  +++ b/hw/vmware_vga.c
>  @@ -1232,6 +1232,9 @@ static int pci_vmsvga_initfn(PCIDevice *dev)
>      struct pci_vmsvga_state_s *s =
>          DO_UPCAST(struct pci_vmsvga_state_s, card, dev);
>
>  +    if (is_ioport_assigned(0x3c0))
>  +        return -1;
>  +
>      pci_config_set_vendor_id(s->card.config, PCI_VENDOR_ID_VMWARE);
>      pci_config_set_device_id(s->card.config, SVGA_PCI_DEVICE_ID);
>      s->card.config[PCI_COMMAND]        = PCI_COMMAND_IO |
>
> --
>  1.6.6.1
>
>
>