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| author | Paolo Bonzini <pbonzini@redhat.com> | 2017-12-21 00:49:14 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2018-01-02 20:33:21 +0100 |
| commit | 5a62acc900e9066f86ec7051ee92491d36fe5f81 (patch) | |
| tree | 8531bd6178131deb1d491243e4745cdc45374e58 /tools/perf/scripts/python | |
| parent | c9b5338394f235ef313e2160ed3c245965597db8 (diff) | |
kvm: x86: fix RSM when PCID is non-zero
commit fae1a3e775cca8c3a9e0eb34443b310871a15a92 upstream.
rsm_load_state_64() and rsm_enter_protected_mode() load CR3, then
CR4 & ~PCIDE, then CR0, then CR4.
However, setting CR4.PCIDE fails if CR3[11:0] != 0. It's probably easier
in the long run to replace rsm_enter_protected_mode() with an emulator
callback that sets all the special registers (like KVM_SET_SREGS would
do). For now, set the PCID field of CR3 only after CR4.PCIDE is 1.
Reported-by: Laszlo Ersek <lersek@redhat.com>
Tested-by: Laszlo Ersek <lersek@redhat.com>
Fixes: 660a5d517aaab9187f93854425c4c63f4a09195c
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'tools/perf/scripts/python')
0 files changed, 0 insertions, 0 deletions