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xen, vga: add API for registering the framebuffer

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Xen currently uses the name of a memory region to determine whether it
is the framebuffer.  Replace with an explicit API.

Signed-off-by: Avi Kivity <avi@redhat.com>
This commit is contained in:
Avi Kivity 2011-12-18 16:40:50 +02:00
parent 04097f7c59
commit c65adf9bcd
4 changed files with 15 additions and 0 deletions
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2
hw/vga.c
View File

@ -28,6 +28,7 @@
#include "vga_int.h"
#include "pixel_ops.h"
#include "qemu-timer.h"
#include "xen.h"
//#define DEBUG_VGA
//#define DEBUG_VGA_MEM
@ -2222,6 +2223,7 @@ void vga_common_init(VGACommonState *s, int vga_ram_size)
s->is_vbe_vmstate = 0;
#endif
memory_region_init_ram(&s->vram, NULL, "vga.vram", vga_ram_size);
xen_register_framebuffer(&s->vram);
s->vram_ptr = memory_region_get_ram_ptr(&s->vram);
s->vram_size = vga_ram_size;
s->get_bpp = vga_get_bpp;

3
hw/xen.h
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@ -49,6 +49,9 @@ void xen_ram_alloc(ram_addr_t ram_addr, ram_addr_t size,
struct MemoryRegion *mr);
#endif
struct MemoryRegion;
void xen_register_framebuffer(struct MemoryRegion *mr);
#if defined(CONFIG_XEN) && CONFIG_XEN_CTRL_INTERFACE_VERSION < 400
# define HVM_MAX_VCPUS 32
#endif

6
xen-all.c
View File

@ -33,6 +33,7 @@
#endif
static MemoryRegion ram_memory, ram_640k, ram_lo, ram_hi;
static MemoryRegion *framebuffer;
/* Compatibility with older version */
#if __XEN_LATEST_INTERFACE_VERSION__ < 0x0003020a
@ -982,3 +983,8 @@ void destroy_hvm_domain(void)
xc_interface_close(xc_handle);
}
}
void xen_register_framebuffer(MemoryRegion *mr)
{
framebuffer = mr;
}

4
xen-stub.c
View File

@ -44,3 +44,7 @@ int xen_init(void)
{
return -ENOSYS;
}
void xen_register_framebuffer(MemoryRegion *mr)
{
}