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| author | Marc Zyngier <marc.zyngier@arm.com> | 2012-11-06 19:27:59 +0000 |
|---|---|---|
| committer | Catalin Marinas <catalin.marinas@arm.com> | 2012-12-05 11:26:50 +0000 |
| commit | 7dbfbe5b2f5fc01fb0a19a0d58820ba4ebb07884 (patch) | |
| tree | 1c0722e8dadc07c59089a9b1df50cbcd22aa7cf4 /arch/arm64 | |
| parent | 712c6ff4dba4917a440be601dc312506322bffe8 (diff) | |
| download | linux-7dbfbe5b2f5fc01fb0a19a0d58820ba4ebb07884.tar.gz linux-7dbfbe5b2f5fc01fb0a19a0d58820ba4ebb07884.tar.bz2 linux-7dbfbe5b2f5fc01fb0a19a0d58820ba4ebb07884.zip | |
arm64: hyp: initialize vttbr_el2 to zero
The architecture doesn't mandate any reset value for vttbr_el2.
Better set it to a known value before some HYP code gets confused.
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Diffstat (limited to 'arch/arm64')
| -rw-r--r-- | arch/arm64/kernel/head.S | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/arch/arm64/kernel/head.S b/arch/arm64/kernel/head.S index 5792749e34c4..368ad1f7c36c 100644 --- a/arch/arm64/kernel/head.S +++ b/arch/arm64/kernel/head.S @@ -185,6 +185,9 @@ ENTRY(el2_setup) msr hstr_el2, xzr // Disable CP15 traps to EL2 #endif + /* Stage-2 translation */ + msr vttbr_el2, xzr + /* Hypervisor stub */ adr x0, __hyp_stub_vectors msr vbar_el2, x0 |