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| author | Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> | 2012-09-21 20:30:35 +0400 |
|---|---|---|
| committer | Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> | 2012-09-24 17:24:20 +0400 |
| commit | ffb8b233c2261b7978dc3bd759aaa19bd1a7fadf (patch) | |
| tree | 63cced33b1740de8c02c871035a29c6ec5e1d0e8 | |
| parent | a5f95155709cb854e96aa27969d110668cdbda9d (diff) | |
| download | linux-ffb8b233c2261b7978dc3bd759aaa19bd1a7fadf.tar.xz | |
xen/x86: retrieve keyboard shift status flags from hypervisor.
The xen c/s 25873 allows the hypervisor to retrieve the NUMLOCK flag.
With this patch, the Linux kernel can get the state according to the
data in the BIOS.
Acked-by: Jan Beulich <jbeulich@suse.com>
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
| -rw-r--r-- | arch/x86/xen/enlighten.c | 8 | ||||
| -rw-r--r-- | include/xen/interface/platform.h | 3 |
2 files changed, 11 insertions, 0 deletions
diff --git a/arch/x86/xen/enlighten.c b/arch/x86/xen/enlighten.c index 47b3acdc2ac5..67897152237c 100644 --- a/arch/x86/xen/enlighten.c +++ b/arch/x86/xen/enlighten.c @@ -1440,11 +1440,19 @@ asmlinkage void __init xen_start_kernel(void) const struct dom0_vga_console_info *info = (void *)((char *)xen_start_info + xen_start_info->console.dom0.info_off); + struct xen_platform_op op = { + .cmd = XENPF_firmware_info, + .interface_version = XENPF_INTERFACE_VERSION, + .u.firmware_info.type = XEN_FW_KBD_SHIFT_FLAGS, + }; xen_init_vga(info, xen_start_info->console.dom0.info_size); xen_start_info->console.domU.mfn = 0; xen_start_info->console.domU.evtchn = 0; + if (HYPERVISOR_dom0_op(&op) == 0) + boot_params.kbd_status = op.u.firmware_info.u.kbd_shift_flags; + xen_init_apic(); /* Make sure ACS will be enabled */ diff --git a/include/xen/interface/platform.h b/include/xen/interface/platform.h index a3275a850e54..54ad6f9e4725 100644 --- a/include/xen/interface/platform.h +++ b/include/xen/interface/platform.h @@ -112,6 +112,7 @@ DEFINE_GUEST_HANDLE_STRUCT(xenpf_platform_quirk_t); #define XEN_FW_DISK_INFO 1 /* from int 13 AH=08/41/48 */ #define XEN_FW_DISK_MBR_SIGNATURE 2 /* from MBR offset 0x1b8 */ #define XEN_FW_VBEDDC_INFO 3 /* from int 10 AX=4f15 */ +#define XEN_FW_KBD_SHIFT_FLAGS 5 /* Int16, Fn02: Get keyboard shift flags. */ struct xenpf_firmware_info { /* IN variables. */ uint32_t type; @@ -142,6 +143,8 @@ struct xenpf_firmware_info { /* must refer to 128-byte buffer */ GUEST_HANDLE(uchar) edid; } vbeddc_info; /* XEN_FW_VBEDDC_INFO */ + + uint8_t kbd_shift_flags; /* XEN_FW_KBD_SHIFT_FLAGS */ } u; }; DEFINE_GUEST_HANDLE_STRUCT(xenpf_firmware_info_t); |