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| author | Jan Beulich <jbeulich@suse.com> | 2023-03-13 15:45:48 +0100 |
|---|---|---|
| committer | Juergen Gross <jgross@suse.com> | 2023-03-14 15:20:51 +0100 |
| commit | 934ef33ee75c3846f605f18b65048acd147e3918 (patch) | |
| tree | 5b5b2fd04466a3c1528176ad31982a9fec68615e /arch/x86/xen/enlighten_pvh.c | |
| parent | 99a7bcafbd0d04555074554573019096a8c10450 (diff) | |
| download | linux-934ef33ee75c3846f605f18b65048acd147e3918.tar.gz linux-934ef33ee75c3846f605f18b65048acd147e3918.tar.bz2 linux-934ef33ee75c3846f605f18b65048acd147e3918.zip | |
x86/PVH: obtain VGA console info in Dom0
A new platform-op was added to Xen to allow obtaining the same VGA
console information PV Dom0 is handed. Invoke the new function and have
the output data processed by xen_init_vga().
Signed-off-by: Jan Beulich <jbeulich@suse.com>
Reviewed-by: Juergen Gross <jgross@suse.com>
Link: https://lore.kernel.org/r/8f315e92-7bda-c124-71cc-478ab9c5e610@suse.com
Signed-off-by: Juergen Gross <jgross@suse.com>
Diffstat (limited to 'arch/x86/xen/enlighten_pvh.c')
| -rw-r--r-- | arch/x86/xen/enlighten_pvh.c | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/arch/x86/xen/enlighten_pvh.c b/arch/x86/xen/enlighten_pvh.c index bcae606bbc5c..1da44aca896c 100644 --- a/arch/x86/xen/enlighten_pvh.c +++ b/arch/x86/xen/enlighten_pvh.c @@ -43,6 +43,19 @@ void __init xen_pvh_init(struct boot_params *boot_params) x86_init.oem.banner = xen_banner; xen_efi_init(boot_params); + + if (xen_initial_domain()) { + struct xen_platform_op op = { + .cmd = XENPF_get_dom0_console, + }; + long ret = HYPERVISOR_platform_op(&op); + + if (ret > 0) + xen_init_vga(&op.u.dom0_console, + min(ret * sizeof(char), + sizeof(op.u.dom0_console)), + &boot_params->screen_info); + } } void __init mem_map_via_hcall(struct boot_params *boot_params_p) |