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| author | Laura Abbott <lauraa@codeaurora.org> | 2014-11-21 21:50:39 +0000 |
|---|---|---|
| committer | Will Deacon <will.deacon@arm.com> | 2014-11-25 15:56:44 +0000 |
| commit | ac2dec5f6c27a581f8571da605d9ba04df18330d (patch) | |
| tree | 82360a06c38a70370d48a777520c5ea4245064bf /arch/arm64 | |
| parent | fcff588633e848aa728a4437ef96d437299ba03d (diff) | |
| download | linux-ac2dec5f6c27a581f8571da605d9ba04df18330d.tar.gz linux-ac2dec5f6c27a581f8571da605d9ba04df18330d.tar.bz2 linux-ac2dec5f6c27a581f8571da605d9ba04df18330d.zip | |
arm64: Switch to adrp for loading the stub vectors
The hyp stub vectors are currently loaded using adr. This
instruction has a +/- 1MB range for the loading address. If
the alignment for sections is changed the address may be more
than 1MB away, resulting in reclocation errors. Switch to using
adrp for getting the address to ensure we aren't affected by the
location of the __hyp_stub_vectors.
Acked-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Acked-by: Marc Zyngier <marc.zyngier@arm.com>
Tested-by: Mark Rutland <mark.rutland@arm.com>
Tested-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Laura Abbott <lauraa@codeaurora.org>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Diffstat (limited to 'arch/arm64')
| -rw-r--r-- | arch/arm64/kernel/head.S | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/arch/arm64/kernel/head.S b/arch/arm64/kernel/head.S index 5a76e3ab788c..fddda8565a52 100644 --- a/arch/arm64/kernel/head.S +++ b/arch/arm64/kernel/head.S @@ -341,7 +341,8 @@ CPU_LE( movk x0, #0x30d0, lsl #16 ) // Clear EE and E0E on LE systems msr vttbr_el2, xzr /* Hypervisor stub */ - adr x0, __hyp_stub_vectors + adrp x0, __hyp_stub_vectors + add x0, x0, #:lo12:__hyp_stub_vectors msr vbar_el2, x0 /* spsr */ |