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| author | Paolo Bonzini <[email protected]> | 2015-11-03 12:43:05 +0000 |
|---|---|---|
| committer | Paolo Bonzini <[email protected]> | 2015-11-04 15:24:38 +0000 |
| commit | 89651a3decbe03754f304a0b248f27eeb9a37937 (patch) | |
| tree | 9a97a14cb71b3695b8da048829bddfa3ad5d2dee /lib/mpi/mpicoder.c | |
| parent | KVM: VMX: fix SMEP and SMAP without EPT (diff) | |
| download | kernel-89651a3decbe03754f304a0b248f27eeb9a37937.tar.gz kernel-89651a3decbe03754f304a0b248f27eeb9a37937.zip | |
KVM: x86: allow RSM from 64-bit mode
The SDM says that exiting system management mode from 64-bit mode
is invalid, but that would be too good to be true. But actually,
most of the code is already there to support exiting from compat
mode (EFER.LME=1, EFER.LMA=0). Getting all the way from 64-bit
mode to real mode only requires clearing CS.L and CR4.PCIDE.
Cc: [email protected]
Fixes: 660a5d517aaab9187f93854425c4c63f4a09195c
Tested-by: Laszlo Ersek <[email protected]>
Cc: Radim Krčmář <[email protected]>
Signed-off-by: Paolo Bonzini <[email protected]>
Diffstat (limited to 'lib/mpi/mpicoder.c')
0 files changed, 0 insertions, 0 deletions