Re: [PATCH v3 06/12] KVM: arm64: selftests: Add support to disable and enable local IRQs
From: Oliver Upton <hidden>
Date: 2021-09-01 23:26:59
Also in:
kvm, kvmarm, lkml
On Wed, Sep 01, 2021 at 09:14:06PM +0000, Raghavendra Rao Ananta wrote:
Add functions local_irq_enable() and local_irq_disable() to enable and disable the IRQs from the guest, respectively. Signed-off-by: Raghavendra Rao Ananta <redacted>
Reviewed-by: Oliver Upton <redacted>
quoted hunk ↗ jump to hunk
--- .../testing/selftests/kvm/include/aarch64/processor.h | 10 ++++++++++ 1 file changed, 10 insertions(+)diff --git a/tools/testing/selftests/kvm/include/aarch64/processor.h b/tools/testing/selftests/kvm/include/aarch64/processor.h index 78df059dc974..c35bb7b8e870 100644 --- a/tools/testing/selftests/kvm/include/aarch64/processor.h +++ b/tools/testing/selftests/kvm/include/aarch64/processor.h@@ -241,4 +241,14 @@ static __always_inline u32 __raw_readl(const volatile void *addr) #define writel(v,c) ({ __iowmb(); writel_relaxed((v),(c));}) #define readl(c) ({ u32 __v = readl_relaxed(c); __iormb(__v); __v; }) +static inline void local_irq_enable(void) +{ + asm volatile("msr daifclr, #3" : : : "memory"); +} + +static inline void local_irq_disable(void) +{ + asm volatile("msr daifset, #3" : : : "memory"); +} + #endif /* SELFTEST_KVM_PROCESSOR_H */-- 2.33.0.153.gba50c8fa24-goog
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