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| author | Marc Zyngier <maz@kernel.org> | 2021-02-08 12:57:13 +0300 |
|---|---|---|
| committer | Will Deacon <will@kernel.org> | 2021-02-08 15:51:26 +0300 |
| commit | f359182291c757cdf77bcd014c025d1ed6b87662 (patch) | |
| tree | 88e93ba8771d6402f50b66cc0888543262f9870e /drivers/usb/cdns3/cdns3-debug.h | |
| parent | 8cc8a32415364e475c25277b507f06f67c47ca9a (diff) | |
| download | linux-f359182291c757cdf77bcd014c025d1ed6b87662.tar.xz | |
arm64: Provide an 'upgrade to VHE' stub hypercall
As we are about to change the way a VHE system boots, let's
provide the core helper, in the form of a stub hypercall that
enables VHE and replicates the full EL1 context at EL2, thanks
to EL1 and VHE-EL2 being extremely similar.
On exception return, the kernel carries on at EL2. Fancy!
Nothing calls this new hypercall yet, so no functional change.
Signed-off-by: Marc Zyngier <maz@kernel.org>
Acked-by: David Brazdil <dbrazdil@google.com>
Acked-by: Catalin Marinas <catalin.marinas@arm.com>
Link: https://lore.kernel.org/r/20210208095732.3267263-5-maz@kernel.org
Signed-off-by: Will Deacon <will@kernel.org>
Diffstat (limited to 'drivers/usb/cdns3/cdns3-debug.h')
0 files changed, 0 insertions, 0 deletions