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| author | Marc Zyngier <maz@kernel.org> | 2020-05-13 11:58:29 +0100 |
|---|---|---|
| committer | Marc Zyngier <maz@kernel.org> | 2020-05-16 15:04:18 +0100 |
| commit | c6fe89ff8b250ad4dc4bed7bd5877bfbc35f4aba (patch) | |
| tree | f9da364e33474c6394b714f4e4bfa69030ffd480 /arch/arm64/kvm/arch_timer.c | |
| parent | 25357de01b95140ecacd4d9347d74df2dda789f2 (diff) | |
| download | linux-c6fe89ff8b250ad4dc4bed7bd5877bfbc35f4aba.tar.bz2 | |
KVM: arm64: Simplify __kvm_timer_set_cntvoff implementation
Now that this function isn't constrained by the 32bit PCS,
let's simplify it by taking a single 64bit offset instead
of two 32bit parameters.
Signed-off-by: Marc Zyngier <maz@kernel.org>
Diffstat (limited to 'arch/arm64/kvm/arch_timer.c')
| -rw-r--r-- | arch/arm64/kvm/arch_timer.c | 12 |
1 files changed, 1 insertions, 11 deletions
diff --git a/arch/arm64/kvm/arch_timer.c b/arch/arm64/kvm/arch_timer.c index 93bd59b46848..487eba9f87cd 100644 --- a/arch/arm64/kvm/arch_timer.c +++ b/arch/arm64/kvm/arch_timer.c @@ -451,17 +451,7 @@ out: static void set_cntvoff(u64 cntvoff) { - u32 low = lower_32_bits(cntvoff); - u32 high = upper_32_bits(cntvoff); - - /* - * Since kvm_call_hyp doesn't fully support the ARM PCS especially on - * 32-bit systems, but rather passes register by register shifted one - * place (we put the function address in r0/x0), we cannot simply pass - * a 64-bit value as an argument, but have to split the value in two - * 32-bit halves. - */ - kvm_call_hyp(__kvm_timer_set_cntvoff, low, high); + kvm_call_hyp(__kvm_timer_set_cntvoff, cntvoff); } static inline void set_timer_irq_phys_active(struct arch_timer_context *ctx, bool active) |