Re: [PATCH v4 2/8] x86/boot: obtain video info from boot loader

2022-04-05 Thread Roger Pau Monné
On Tue, Apr 05, 2022 at 12:57:51PM +0200, Jan Beulich wrote: > On 05.04.2022 11:35, Roger Pau Monné wrote: > > On Thu, Mar 31, 2022 at 11:45:02AM +0200, Jan Beulich wrote: > >> --- a/xen/arch/x86/boot/head.S > >> +++ b/xen/arch/x86/boot/head.S > >> @@ -562,12 +562,18 @@ trampoline_setup: > >>

Re: [PATCH v4 2/8] x86/boot: obtain video info from boot loader

2022-04-05 Thread Jan Beulich
On 05.04.2022 11:35, Roger Pau Monné wrote: > On Thu, Mar 31, 2022 at 11:45:02AM +0200, Jan Beulich wrote: >> --- a/xen/arch/x86/boot/head.S >> +++ b/xen/arch/x86/boot/head.S >> @@ -562,12 +562,18 @@ trampoline_setup: >> mov %esi, sym_esi(xen_phys_start) >> mov %esi, sym_e

Re: [PATCH v4 2/8] x86/boot: obtain video info from boot loader

2022-04-05 Thread Roger Pau Monné
On Thu, Mar 31, 2022 at 11:45:02AM +0200, Jan Beulich wrote: > With MB2 the boot loader may provide this information, allowing us to > obtain it without needing to enter real mode (assuming we don't need to > set a new mode from "vga=", but can instead inherit the one the > bootloader may have esta

[PATCH v4 2/8] x86/boot: obtain video info from boot loader

2022-03-31 Thread Jan Beulich
With MB2 the boot loader may provide this information, allowing us to obtain it without needing to enter real mode (assuming we don't need to set a new mode from "vga=", but can instead inherit the one the bootloader may have established). Signed-off-by: Jan Beulich --- v4: Re-base. v3: Re-base.