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| author | Paolo Bonzini <pbonzini@redhat.com> | 2015-11-03 13:43:05 +0100 |
|---|---|---|
| committer | Paolo Bonzini <pbonzini@redhat.com> | 2015-11-04 16:24:38 +0100 |
| commit | 89651a3decbe03754f304a0b248f27eeb9a37937 (patch) | |
| tree | 9a97a14cb71b3695b8da048829bddfa3ad5d2dee /arch/arm64/Makefile | |
| parent | 656ec4a4928a3db7d16e5cb9bce351a478cfd3d5 (diff) | |
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: stable@vger.kernel.org
Fixes: 660a5d517aaab9187f93854425c4c63f4a09195c
Tested-by: Laszlo Ersek <lersek@redhat.com>
Cc: Radim Krčmář <rkrcmar@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'arch/arm64/Makefile')
0 files changed, 0 insertions, 0 deletions