diff options
| author | Marc Zyngier <marc.zyngier@arm.com> | 2015-10-25 16:58:00 +0300 |
|---|---|---|
| committer | Marc Zyngier <marc.zyngier@arm.com> | 2015-12-14 14:30:42 +0300 |
| commit | 044ac37d1281fc7b59d5dce4fe979a99369e95f2 (patch) | |
| tree | dfe0f4cfd2860af11ac6825ba16b082e87a6031e /arch/arm64/kvm/hyp/debug-sr.c | |
| parent | 53fd5b6487e4438049a5da5e36dfb8edcf1fd789 (diff) | |
| download | linux-044ac37d1281fc7b59d5dce4fe979a99369e95f2.tar.xz | |
arm64: KVM: Add compatibility aliases
So far, we've implemented the new world switch with a completely
different namespace, so that we could have both implementation
compiled in.
Let's take things one step further by adding weak aliases that
have the same names as the original implementation. The weak
attributes allows the new implementation to be overriden by the
old one, and everything still work.
At a later point, we'll be able to simply drop the old code, and
everything will hopefully keep working, thanks to the aliases we
have just added. This also saves us repainting all the callers.
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Acked-by: Christoffer Dall <christoffer.dall@linaro.org>
Diffstat (limited to 'arch/arm64/kvm/hyp/debug-sr.c')
| -rw-r--r-- | arch/arm64/kvm/hyp/debug-sr.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/arch/arm64/kvm/hyp/debug-sr.c b/arch/arm64/kvm/hyp/debug-sr.c index 7848322deed6..d071f4591a6c 100644 --- a/arch/arm64/kvm/hyp/debug-sr.c +++ b/arch/arm64/kvm/hyp/debug-sr.c @@ -135,3 +135,6 @@ u32 __hyp_text __debug_read_mdcr_el2(void) { return read_sysreg(mdcr_el2); } + +__alias(__debug_read_mdcr_el2) +u32 __weak __kvm_get_mdcr_el2(void); |