From 5c636d585cfd0d01a89b18fced77a07ab2ef386a Mon Sep 17 00:00:00 2001 From: Raghavendra Rao Ananta Date: Thu, 7 Oct 2021 23:34:32 +0000 Subject: KVM: arm64: selftests: Add support to disable and enable local IRQs 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 Reviewed-by: Oliver Upton Reviewed-by: Andrew Jones Signed-off-by: Marc Zyngier Link: https://lore.kernel.org/r/20211007233439.1826892-9-rananta@google.com --- tools/testing/selftests/kvm/include/aarch64/processor.h | 10 ++++++++++ 1 file changed, 10 insertions(+) (limited to 'tools/testing/selftests/kvm/include') diff --git a/tools/testing/selftests/kvm/include/aarch64/processor.h b/tools/testing/selftests/kvm/include/aarch64/processor.h index 265054c24481..515d04a3c27d 100644 --- a/tools/testing/selftests/kvm/include/aarch64/processor.h +++ b/tools/testing/selftests/kvm/include/aarch64/processor.h @@ -172,4 +172,14 @@ 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 */ -- cgit