diff options
| author | Thomas Hellstrom <thellstrom@vmware.com> | 2019-08-28 10:03:50 +0200 |
|---|---|---|
| committer | Borislav Petkov <bp@suse.de> | 2019-08-28 10:48:30 +0200 |
| commit | bac7b4e843232a3a49a042410cf743341eb0887e (patch) | |
| tree | d0d1eb55219dc73b4358dc354194f26091822b3b /scripts/gcc-plugins/randomize_layout_plugin.c | |
| parent | a55aa89aab90fae7c815b0551b07be37db359d76 (diff) | |
x86/vmware: Update platform detection code for VMCALL/VMMCALL hypercalls
Vmware has historically used an INL instruction for this, but recent
hardware versions support using VMCALL/VMMCALL instead, so use this
method if supported at platform detection time. Explicitly code separate
macro versions since the alternatives self-patching has not been
performed at platform detection time.
Also put tighter constraints on the assembly input parameters.
Co-developed-by: Doug Covelli <dcovelli@vmware.com>
Signed-off-by: Doug Covelli <dcovelli@vmware.com>
Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com>
Signed-off-by: Borislav Petkov <bp@suse.de>
Reviewed-by: Doug Covelli <dcovelli@vmware.com>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: linux-graphics-maintainer@vmware.com
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: virtualization@lists.linux-foundation.org
Cc: <pv-drivers@vmware.com>
Cc: x86-ml <x86@kernel.org>
Link: https://lkml.kernel.org/r/20190828080353.12658-2-thomas_os@shipmail.org
Diffstat (limited to 'scripts/gcc-plugins/randomize_layout_plugin.c')
0 files changed, 0 insertions, 0 deletions