From: Julian Pidancet <[email protected]> This patch adds a 155f50 hook which is mandatory for VGA option ROM to work on some platforms. This allows an Intel GFX device to be passed through to a Xen VM on some laptops using a Dell BIOS (Tested successfully on a Dell Lattitude E6410 laptop).
Signed-off-by: Julian Pidancet <[email protected]> --- src/vgahooks.c | 9 +++++++++ 1 files changed, 9 insertions(+), 0 deletions(-) diff --git a/src/vgahooks.c b/src/vgahooks.c index ca12e31..3ae50e5 100644 --- a/src/vgahooks.c +++ b/src/vgahooks.c @@ -187,11 +187,20 @@ intel_155f40(struct bregs *regs) } static void +intel_155f50(struct bregs *regs) +{ + /* Mandatory hook on some Dell laptops */ + regs->ax = 0x005f; + set_success(regs); +} + +static void intel_155f(struct bregs *regs) { switch (regs->al) { case 0x35: intel_155f35(regs); break; case 0x40: intel_155f40(regs); break; + case 0x50: intel_155f50(regs); break; default: handle_155fXX(regs); break; } } -- Julian Pidancet _______________________________________________ SeaBIOS mailing list [email protected] http://www.seabios.org/mailman/listinfo/seabios
