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authorGautam Agrawal <gautamnagrawal@gmail.com>2022-05-01 17:55:05 +0530
committerThomas Huth <thuth@redhat.com>2022-05-09 08:21:14 +0200
commitf9bcb2d68496a8fa620443edacb27cad1acc1492 (patch)
tree5f4f8f52f36e0620718a2833e2903e59a50837ca /hw/isa
parent26f0ee7ddb9e95b3bde1d1b51d98334bebce0e1f (diff)
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Warn user if the vga flag is passed but no vga device is created
A global boolean variable "vga_interface_created"(declared in softmmu/globals.c) has been used to track the creation of vga interface. If the vga flag is passed in the command line "default_vga"(declared in softmmu/vl.c) variable is set to 0. To warn user, the condition checks if vga_interface_created is false and default_vga is equal to 0. If "-vga none" is passed, this patch will not warn the user regarding the creation of VGA device. The warning "A -vga option was passed but this machine type does not use that option; no VGA device has been created" is logged if vga flag is passed but no vga device is created. This patch has been tested for x86_64, i386, sparc, sparc64 and arm boards. Signed-off-by: Gautam Agrawal <gautamnagrawal@gmail.com> Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Resolves: https://gitlab.com/qemu-project/qemu/-/issues/581 Message-Id: <20220501122505.29202-1-gautamnagrawal@gmail.com> [thuth: Fix wrong warning with "-device" in some cases as reported by Paolo] Signed-off-by: Thomas Huth <thuth@redhat.com>
Diffstat (limited to 'hw/isa')
-rw-r--r--hw/isa/isa-bus.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/hw/isa/isa-bus.c b/hw/isa/isa-bus.c
index 0ad1c5f..cd5ad36 100644
--- a/hw/isa/isa-bus.c
+++ b/hw/isa/isa-bus.c
@@ -166,6 +166,7 @@ bool isa_realize_and_unref(ISADevice *dev, ISABus *bus, Error **errp)
ISADevice *isa_vga_init(ISABus *bus)
{
+ vga_interface_created = true;
switch (vga_interface_type) {
case VGA_CIRRUS:
return isa_create_simple(bus, "isa-cirrus-vga");