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KVM: arm64: selftests: Add support to disable and enable local IRQs

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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 <rananta@google.com>
Reviewed-by: Oliver Upton <oupton@google.com>
Reviewed-by: Andrew Jones <drjones@redhat.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20211007233439.1826892-9-rananta@google.com
This commit is contained in:
Raghavendra Rao Ananta 2021-10-07 23:34:32 +00:00 committed by Marc Zyngier
parent 8016690465
commit 5c636d585c
1 changed files with 10 additions and 0 deletions
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10
tools/testing/selftests/kvm/include/aarch64/processor.h
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@ -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 */