diff options
| author | Marc Zyngier <marc.zyngier@arm.com> | 2016-06-30 18:40:40 +0100 |
|---|---|---|
| committer | Christoffer Dall <christoffer.dall@linaro.org> | 2016-07-03 23:41:27 +0200 |
| commit | fd81e6bf3928c14f90a033df164c375d4ce0fd85 (patch) | |
| tree | 9bf9ac123d247ee0bcc9702b683031a65d21b541 /arch/arm64/include/asm/kvm_hyp.h | |
| parent | d53d9bc65289dc50b42587313466594e4d611f0f (diff) | |
arm64: KVM: Refactor kern_hyp_va to deal with multiple offsets
As we move towards a selectable HYP VA range, it is obvious that
we don't want to test a variable to find out if we need to use
the bottom VA range, the top VA range, or use the address as is
(for VHE).
Instead, we can expand our current helper to generate the right
mask or nop with code patching. We default to using the top VA
space, with alternatives to switch to the bottom one or to nop
out the instructions.
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Christoffer Dall <christoffer.dall@linaro.org>
Diffstat (limited to 'arch/arm64/include/asm/kvm_hyp.h')
| -rw-r--r-- | arch/arm64/include/asm/kvm_hyp.h | 11 |
1 files changed, 0 insertions, 11 deletions
diff --git a/arch/arm64/include/asm/kvm_hyp.h b/arch/arm64/include/asm/kvm_hyp.h index 1d81f9abd172..cff510574fae 100644 --- a/arch/arm64/include/asm/kvm_hyp.h +++ b/arch/arm64/include/asm/kvm_hyp.h @@ -25,17 +25,6 @@ #define __hyp_text __section(.hyp.text) notrace -static inline unsigned long __kern_hyp_va(unsigned long v) -{ - asm volatile(ALTERNATIVE("and %0, %0, %1", - "nop", - ARM64_HAS_VIRT_HOST_EXTN) - : "+r" (v) : "i" (HYP_PAGE_OFFSET_MASK)); - return v; -} - -#define kern_hyp_va(v) (typeof(v))(__kern_hyp_va((unsigned long)(v))) - #define read_sysreg_elx(r,nvh,vh) \ ({ \ u64 reg; \ |