Closed jongwu closed 11 months ago
If efi_rtc is enabled in guest kernel, a warning occurs:
[ 0.795685] [Firmware Bug]: Unable to handle paging request in EFI runtime service [ 0.858764] ------------[ cut here ]------------ [ 0.860111] WARNING: CPU: 0 PID: 1 at drivers/firmware/efi/runtime-wrappers.c:346 __efi_queue_work+0xe8/0x11c [ 0.862929] Modules linked in: [ 0.863850] CPU: 0 PID: 1 Comm: swapper/0 Tainted: G W I 6.5.0-next-20230905+ #228 [ 0.866502] pstate: 60400005 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) [ 0.868580] pc : __efi_queue_work+0xe8/0x11c [ 0.869863] lr : __efi_queue_work+0xd4/0x11c [ 0.871143] sp : ffff80008002bad0 [ 0.872135] x29: ffff80008002bad0 x28: 0000000000000000 x27: ffff800081945868 [ 0.874287] x26: ffff8000818500b0 x25: ffff8000817c48b0 x24: 0000000000000000 [ 0.876425] x23: ffff800082425c18 x22: 0000000000000000 x21: ffff80008002bb98 [ 0.878544] x20: ffff800082434a40 x19: ffff8000824349e0 x18: 3d464f6d78cd8426 [ 0.880673] x17: ffff800034fc4000 x16: ffff800080000000 x15: 00003a1efce9c232 [ 0.882805] x14: 0000000000000228 x13: 0000000000000001 x12: 0000000000000001 [ 0.884950] x11: 0000000000000000 x10: 0000000000000980 x9 : ffff80008002b920 [ 0.887077] x8 : ffff0000018e09e0 x7 : ffff0000b69f5780 x6 : 0000000000000000 [ 0.889205] x5 : 00000000430f0af0 x4 : 0000000000f0000f x3 : 0000000000000000 [ 0.891337] x2 : 0000000000000000 x1 : 8000000000000015 x0 : 8000000000000015 [ 0.893475] Call trace: [ 0.894210] __efi_queue_work+0xe8/0x11c [ 0.895384] virt_efi_get_time+0x64/0xb4 [ 0.896568] efi_rtc_probe+0x40/0x170 [ 0.897663] platform_probe+0x68/0xdc [ 0.898756] really_probe+0x148/0x2ac [ 0.899852] __driver_probe_device+0x78/0x12c [ 0.901165] driver_probe_device+0x3c/0x15c [ 0.902416] __driver_attach+0x94/0x19c [ 0.903560] bus_for_each_dev+0x74/0xd4 [ 0.904714] driver_attach+0x24/0x30 [ 0.905789] bus_add_driver+0xe4/0x1e8 [ 0.906913] driver_register+0x60/0x128 [ 0.908064] __platform_driver_probe+0x58/0xd0 [ 0.909410] efi_rtc_driver_init+0x24/0x30 [ 0.910637] do_one_initcall+0x6c/0x1b0 [ 0.911785] kernel_init_freeable+0x1b8/0x280 [ 0.913096] kernel_init+0x24/0x1e0 [ 0.914140] ret_from_fork+0x10/0x20 [ 0.915211] ---[ end trace 0000000000000000 ]---
And the time is wrong in guest.
If efi_rtc is enabled in guest kernel, a warning occurs:
And the time is wrong in guest.