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| author |   Brijesh Singh <brijesh.singh@amd.com> | 2018-02-19 10:14:44 -0600 |
|---|---|---|
| committer |   Paolo Bonzini <pbonzini@redhat.com> | 2018-02-24 02:24:12 +0100 |
| commit | 7607b7174405aec7441ff6c970833c463114040a (patch) | |
| tree | b507a9bd87b758a01a532ac98814f614bffd3b38 /tools/perf/scripts/python/export-to-postgresql.py | |
| parent | KVM: SVM: no need to call access_ok() in LAUNCH_MEASURE command (diff) | |
| download | linux-dev-7607b7174405aec7441ff6c970833c463114040a.tar.xz linux-dev-7607b7174405aec7441ff6c970833c463114040a.zip | |
KVM: SVM: install RSM intercept
RSM instruction is used by the SMM handler to return from SMM mode.
Currently, rsm causes a #UD - which results in instruction fetch, decode,
and emulate. By installing the RSM intercept we can avoid the instruction
fetch since we know that #VMEXIT was due to rsm.
The patch is required for the SEV guest, because in case of SEV guest
memory is encrypted with guest-specific key and hypervisor will not
able to fetch the instruction bytes from the guest memory.
Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: Radim Krčmář <rkrcmar@redhat.com>
Cc: Joerg Roedel <joro@8bytes.org>
Cc: Borislav Petkov <bp@suse.de>
Cc: Tom Lendacky <thomas.lendacky@amd.com>
Signed-off-by: Brijesh Singh <brijesh.singh@amd.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'tools/perf/scripts/python/export-to-postgresql.py')
0 files changed, 0 insertions, 0 deletions