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| author | Sean Christopherson <sean.j.christopherson@intel.com> | 2020-09-23 15:04:22 -0700 |
|---|---|---|
| committer | Paolo Bonzini <pbonzini@redhat.com> | 2020-09-28 07:57:35 -0400 |
| commit | 7b367bc9a6415dc6f31135d50ab37e8ee18d6974 (patch) | |
| tree | 226793efa2e3fb6a48a62aa6e41de6ec8988611c /tools/perf/scripts/python/exported-sql-viewer.py | |
| parent | KVM: x86/MMU: Recursively zap nested TDP SPs when zapping last/only parent (diff) | |
| download | linux-7b367bc9a6415dc6f31135d50ab37e8ee18d6974.tar.gz linux-7b367bc9a6415dc6f31135d50ab37e8ee18d6974.zip | |
KVM: x86/mmu: Return -EIO if page fault returns RET_PF_INVALID
Exit to userspace with an error if the MMU is buggy and returns
RET_PF_INVALID when servicing a page fault. This will allow a future
patch to invert the emulation path, i.e. emulate only on RET_PF_EMULATE
instead of emulating on anything but RET_PF_RETRY. This technically
means that KVM will exit to userspace instead of emulating on
RET_PF_INVALID, but practically speaking it's a nop as the MMU never
returns RET_PF_INVALID.
Signed-off-by: Sean Christopherson <sean.j.christopherson@intel.com>
Message-Id: <20200923220425.18402-2-sean.j.christopherson@intel.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'tools/perf/scripts/python/exported-sql-viewer.py')
0 files changed, 0 insertions, 0 deletions