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Re: [Qemu-devel] [PATCH 1/3] vga: make PCI devices optional
From: |
Jan Kiszka |
Subject: |
Re: [Qemu-devel] [PATCH 1/3] vga: make PCI devices optional |
Date: |
Sun, 09 Oct 2011 12:47:10 +0200 |
User-agent: |
Mozilla/5.0 (X11; U; Linux i686 (x86_64); de; rv:1.8.1.12) Gecko/20080226 SUSE/2.0.0.12-1.1 Thunderbird/2.0.0.12 Mnenhy/0.7.5.666 |
On 2011-10-09 12:22, Blue Swirl wrote:
> Signed-off-by: Blue Swirl <address@hidden>
> ---
> hw/cirrus_vga.c | 5 -----
> hw/pc.c | 6 +++++-
> hw/pc.h | 26 ++++++++++++++++++++++++--
> hw/pci.c | 18 ++++++++++++++++++
> hw/pci.h | 4 ++++
> hw/vga-pci.c | 6 ------
> 6 files changed, 51 insertions(+), 14 deletions(-)
>
> diff --git a/hw/cirrus_vga.c b/hw/cirrus_vga.c
> index c7e365b..a11444c 100644
> --- a/hw/cirrus_vga.c
> +++ b/hw/cirrus_vga.c
> @@ -2955,11 +2955,6 @@ static int pci_cirrus_vga_initfn(PCIDevice *dev)
> return 0;
> }
>
> -void pci_cirrus_vga_init(PCIBus *bus)
> -{
> - pci_create_simple(bus, -1, "cirrus-vga");
> -}
> -
> static PCIDeviceInfo cirrus_vga_info = {
> .qdev.name = "cirrus-vga",
> .qdev.desc = "Cirrus CLGD 54xx VGA",
> diff --git a/hw/pc.c b/hw/pc.c
> index 203627d..97f93d4 100644
> --- a/hw/pc.c
> +++ b/hw/pc.c
> @@ -1068,7 +1068,11 @@ void pc_vga_init(PCIBus *pci_bus)
> {
> if (cirrus_vga_enabled) {
> if (pci_bus) {
> - pci_cirrus_vga_init(pci_bus);
> + if (!pci_cirrus_vga_init(pci_bus)) {
> + fprintf(stderr, "Warning: cirrus_vga not available,"
> + " using standard VGA instead\n");
> + pci_vga_init(pci_bus);
> + }
If you adjust the default vga interface in case cirrus is configured
out, you can simply fail here. Would be more user-friendly, specifically
if the user actually specified -vga cirrus.
Jan
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