when execute grub-install, I got a Oops:
------------------
root@genericarmv8:/# grub-install
Installing for arm64-efi platform.
[ 2740.274315] Unable to handle kernel paging request at virtual address 0ffc0058
[ 2740.274369] pgd = ffffffc07ba2c000
[ 2740.274416] [0ffc0058] *pgd=00000000fbf5e003, *pmd=0000000000000000
[ 2740.274489] Internal error: Oops: 96000006 [#1] SMP
[ 2740.274531] Modules linked in:
[ 2740.274596] CPU: 0 PID: 1861 Comm: efibootmgr Not tainted 3.14.0-rc2+ #1
[ 2740.274664] task: ffffffc07b546500 ti: ffffffc07ba3c000 task.ti: ffffffc07ba3c000
[ 2740.274724] PC is at 0xffffffc0771caaac
[ 2740.274775] LR is at 0xffffffc0771caa88
[ 2740.274833] pc : [<ffffffc0771caaac>] lr : [<ffffffc0771caa88>] pstate: 400001c5
[ 2740.274887] sp : ffffffc07ba3fc10
[ 2740.274932] x29: ffffffc07ba3fd50 x28: 0000000000000007
[ 2740.275004] x27: ffffffc07ba3fda0 x26: ffffffc07ba2b000
[ 2740.275074] x25: 00000000000000a2 x24: 00000000ff8ce6c0
[ 2740.275146] x23: ffffffc0771d7bd8 x22: ffffffc07f8a8018
[ 2740.275219] x21: ffffffc07ba3fd20 x20: ffffffc07ba3fd20
[ 2740.275290] x19: 0000000000000012 x18: 0000007fe3b62be0
[ 2740.275361] x17: 0000007fb2567fc0 x16: ffffffc000170f08
[ 2740.275435] x15: 0036f1a974000000 x14: 0000000000000000
[ 2740.275504] x13: 00000003e8000000 x12: 0000000000000038
[ 2740.275575] x11: ffffffc07d24a418 x10: ffffffc0004ecb4c
[ 2740.275647] x9 : ffffffc00069f990 x8 : ffffffc07ba2b010
[ 2740.275719] x7 : fffffffffffffffe x6 : ffffffc07f8a8028
[ 2740.275791] x5 : ffffffc07f8a8038 x4 : ffffffc07ba3fda0
[ 2740.275862] x3 : 0000000000000032 x2 : 0000000000000000
[ 2740.275931] x1 : ffffffc07f8d1d18 x0 : 000000000ffc0048
[ 2740.275993]
[ 2740.276043] Process efibootmgr (pid: 1861, stack limit = 0xffffffc07ba3c058)
[ 2740.276106] Stack: (0xffffffc07ba3fc10 to 0xffffffc07ba40000)
[ 2740.276190] fc00: 7ba2b000 ffffffc0 00000007 00000000
[ 2740.276299] fc20: 7ba3fda0 ffffffc0 00000070 00000000 00000007 00000000 771d7bd8 ffffffc0
[ 2740.276411] fc40: 7d24a418 ffffffc0 0095b8d8 ffffffc0 00880000 ffffffc0 7ba3c000 ffffffc0
[ 2740.276522] fc60: 771cb398 ffffffc0 00000007 00000000 7ba3fda0 ffffffc0 00000070 00000000
[ 2740.276630] fc80: 00000007 00000000 771cb37c ffffffc0 00000007 00000000 771cb2e8 ffffffc0
[ 2740.276742] fca0: 7d24a418 ffffffc0 7f8a8038 ffffffc0 00000000 ffffffc0 00000032 00000000
[ 2740.276854] fcc0: 7ba2b000 ffffffc0 0095b000 ffffffc0 008c0728 ffffffc0 0095b920 ffffffc0
[ 2740.276964] fce0: 00000007 00000000 00000070 00000000 7d24a418 ffffffc0 0095b8d8 ffffffc0
[ 2740.277075] fd00: 00880000 ffffffc0 7ba3c000 ffffffc0 004ec764 ffffffc0 00000070 00000000
[ 2740.277184] fd20: 00000000 00000000 00000000 00000000 7f897018 ffffffc0 7f88707c ffffffc0
[ 2740.277297] fd40: 7ba3fd00 ffffffc0 00384fbc ffffffc0 7ba3fdb0 ffffffc0 004ed570 ffffffc0
[ 2740.277409] fd60: 7d24a000 ffffffc0 7ba2b000 ffffffc0 7d24a418 ffffffc0 00000824 00000000
[ 2740.277519] fd80: 7ba3fec8 ffffffc0 7bc61990 ffffffc0 00000112 00000000 00000040 00000000
[ 2740.277632] fda0: 8be4df61 11d293ca e0000daa 8c2b0398 7ba3fde0 ffffffc0 001dc6a4 ffffffc0
[ 2740.277743] fdc0: 00000824 00000000 7d24a000 ffffffc0 fffffff2 ffffffff 7bc61980 ffffffc0
[ 2740.277857] fde0: 7ba3fdf0 ffffffc0 001e0164 ffffffc0 7ba3fe30 ffffffc0 001706e0 ffffffc0
[ 2740.277967] fe00: 7d26b0c0 ffffffc0 00000824 00000000 7ba3fec8 ffffffc0 3afd30ba 00000000
[ 2740.278078] fe20: 60000000 00000000 00000015 00000000 7ba3fe80 ffffffc0 00170f4c ffffffc0
[ 2740.278187] fe40: 7d26b0c0 ffffffc0 3afd30ba 00000000 00000000 00000000 b2567fdc 0000007f
[ 2740.278298] fe60: 60000000 00000000 3afd30ba 00000000 7ba3fe80 ffffffc0 00170f28 ffffffc0
[ 2740.278407] fe80: e3b61440 0000007f 000841ec ffffffc0 00000006 00000000 3afd30ba 00000000
[ 2740.278516] fea0: ffffffff ffffffff 00020001 00000000 00000022 00000100 00000824 00000000
[ 2740.278624] fec0: e3b61330 0000007f 00000000 00000000 00000006 00000000 3afd30ba 00000000
[ 2740.278731] fee0: 00000824 00000000 00000000 00000000 00000000 00000000 00000400 00000000
[ 2740.278836] ff00: 000003ff 00000000 00000000 00000000 00000040 00000000 00000004 00000000
[ 2740.278944] ff20: 00408878 00000000 00000007 00000000 00000038 00000000 e8000000 00000003
[ 2740.279052] ff40: 00000000 00000000 74000000 0036f1a9 00000000 00000000 b2567fc0 0000007f
[ 2740.279160] ff60: e3b62be0 0000007f 00000006 00000000 3afd30ba 00000000 00000000 00000000
[ 2740.279267] ff80: 00000002 00000000 00000002 00000000 3afd30ba 00000000 3afd30e0 00000000
[ 2740.279376] ffa0: 00419000 00000000 00419000 00000000 00000000 00000000 e3b61440 0000007f
[ 2740.279485] ffc0: 0040675c 00000000 e3b61440 0000007f b2567fdc 0000007f 60000000 00000000
[ 2740.279592] ffe0: 00000006 00000000 00000040 00000000 00000000 00000000 00000000 00000000
[ 2740.279642] Call trace:
[ 2740.279696] [<ffffffc0771caaac>] 0xffffffc0771caaac
[ 2740.279768] [<ffffffc0004ed570>] efivar_create+0x94/0x128
[ 2740.279851] [<ffffffc0001dc6a4>] sysfs_kf_bin_write+0x68/0x78
[ 2740.279927] [<ffffffc0001e0164>] kernfs_fop_write+0xf0/0x148
[ 2740.279995] [<ffffffc0001706e0>] vfs_write+0xa8/0x1a0
[ 2740.280062] [<ffffffc000170f4c>] SyS_write+0x44/0x90
[ 2740.280144] Code: 36000efc f9400820 121d0382 b900a3e2 (b9401004)
[ 2740.280202] ---[ end trace d31c8653ca25aa8e ]---
Installation finished. No error reported.
root@genericarmv8:/# grub-install
Installing for arm64-efi platform.
------------------
and Leif can reproduce the behaviour by simply using the command line
'efibootmgr -c -d /dev/vda'.
And Leif mention that:
0x0ffc0058 lies within the NOR flash of the FVP Base model.
Yet, I see no memory region marked as i/o in the memory map.
This bug block the UEFI and GRUB test design in LAVA.
This applies to all platforms in ArmPlatformPkg.