search for: xen_ram_alloc

Hey, I just started noticing it today - with qemu-xen (tip is commit b97307ecaad98360f41ea36cd9674ef810c4f8cf xen_disk: mark ioreq as mapped before unmapping in error case) when I try to pass in a PCI device at bootup it blows up with: char device redirected to /dev/pts/2 (label serial0) qemu: hardware error: xen: failed to populate ram at 40050000 CPU #0: EAX=00000000 EBX=00000000

...the qemu is trying to vist vram in this moment. This >> >> code seems no problem, and I will continue to find the root cause. >> >> >> > >> > The vram is allocated by qemu, see hw/vga.c:vga_common_init. >> > qemu_ram_alloc under xen ends up calling xen_ram_alloc that calls >> > xc_domain_populate_physmap_exact. >> > xc_domain_populate_physmap_exact is the hypercall that should ask Xen to >> > add the missing vram pages in the guest. Maybe this hypercall is failing >> > in your case? >> >> >> Hi, >&gt...

...;>     I believe the qemu is trying to vist vram in this moment. This > >> code seems no problem, and I will continue to find the root cause. > >> > > > > The vram is allocated by qemu, see hw/vga.c:vga_common_init. > > qemu_ram_alloc under xen ends up calling xen_ram_alloc that calls > > xc_domain_populate_physmap_exact. > > xc_domain_populate_physmap_exact is the hypercall that should ask Xen to > > add the missing vram pages in the guest. Maybe this hypercall is failing > > in your case? > > > Hi, > > I continue to inves...