James Morse 8c2d146ee7 KVM: arm64: Define our own swab32() to avoid a uapi static inline ... KVM uses swab32() when mediating GIC MMIO accesses if the GICV is badly aligned, and the host and guest differ in endianness. arm64 doesn't provide a __arch_swab32(), so __fswab32() is always backed by the macro implementation that the compiler reduces to a single instruction. But the static-inline causes problems for KVM if the compiler chooses not to inline this function, it may not be located in the __hyp_text where __vgic_v2_perform_cpuif_access() needs it. Create our own __kvm_swab32() macro that calls ___constant_swab32() directly. This way we know it will always be inlined. Signed-off-by: James Morse <james.morse@arm.com> Signed-off-by: Marc Zyngier <maz@kernel.org> Link: https://lore.kernel.org/r/20200220165839.256881-3-james.morse@arm.com		2020-02-22 11:01:47 +00:00
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asm	KVM: arm64: Define our own swab32() to avoid a uapi static inline	2020-02-22 11:01:47 +00:00
uapi/asm	arm64: KVM: Add UAPI notes for swapped registers	2020-01-23 10:38:14 +00:00