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| author | Suzuki K Poulose <suzuki.poulose@arm.com> | 2018-09-26 19:32:47 +0300 |
|---|---|---|
| committer | Marc Zyngier <marc.zyngier@arm.com> | 2018-10-01 15:50:31 +0300 |
| commit | 595583306434caafac4a71102dca5a8d32d1a769 (patch) | |
| tree | 1102504c273d5a050d3238b11d3c3198b9c44a41 /tools/perf/scripts/python/export-to-postgresql.py | |
| parent | 61fa5a867b6521b4c55865b88bf70c93078d0cf8 (diff) | |
| download | linux-595583306434caafac4a71102dca5a8d32d1a769.tar.xz | |
kvm: arm64: Dynamic configuration of VTTBR mask
On arm64 VTTBR_EL2:BADDR holds the base address for the stage2
translation table. The Arm ARM mandates that the bits BADDR[x-1:0]
should be 0, where 'x' is defined for a given IPA Size and the
number of levels for a translation granule size. It is defined
using some magical constants. This patch is a reverse engineered
implementation to calculate the 'x' at runtime for a given ipa and
number of page table levels. See patch for more details.
Cc: Marc Zyngier <marc.zyngier@arm.com>
Cc: Christoffer Dall <cdall@kernel.org>
Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Diffstat (limited to 'tools/perf/scripts/python/export-to-postgresql.py')
0 files changed, 0 insertions, 0 deletions