diff options
| author | Sean Christopherson <seanjc@google.com> | 2022-05-26 21:08:14 +0000 |
|---|---|---|
| committer | Paolo Bonzini <pbonzini@redhat.com> | 2022-06-10 10:01:31 -0400 |
| commit | b443183a25ab61840a12de92f8822849e017b9c8 (patch) | |
| tree | b3f1773c38494a32c798eb5f93e037c2833938b0 /tools/perf/scripts/python/bin/stackcollapse-record | |
| parent | 0cbc60d44c35b1070eb4070b499164d27d050576 (diff) | |
| download | linux-b443183a25ab61840a12de92f8822849e017b9c8.tar.gz linux-b443183a25ab61840a12de92f8822849e017b9c8.zip | |
KVM: x86: Reduce the number of emulator GPRs to '8' for 32-bit KVM
Reduce the number of GPRs emulated by 32-bit KVM from 16 to 8. KVM does
not support emulating 64-bit mode on 32-bit host kernels, and so should
never generate accesses to R8-15.
Opportunistically use NR_EMULATOR_GPRS in rsm_load_state_{32,64}() now
that it is precise and accurate for both flavors.
Wrap the definition with full #ifdef ugliness; sadly, IS_ENABLED()
doesn't guarantee a compile-time constant as far as BUILD_BUG_ON() is
concerned.
Signed-off-by: Sean Christopherson <seanjc@google.com>
Reviewed-by: Kees Cook <keescook@chromium.org>
Message-Id: <20220526210817.3428868-6-seanjc@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'tools/perf/scripts/python/bin/stackcollapse-record')
0 files changed, 0 insertions, 0 deletions