Support hardware xint and xcall. Changes in v2: - Reuse irq_is_nmi(). - Reuse the xint set and check logic in xint 1.0. - Introduce fast_handle_xint(). - Rename enable_xint_xcall() to enable_xfunc() and rename test_has_xint_xcall() to test_has_xfunc(). - Fix a typo. - Add a blank line after declarations. - Remove an excess semicolon. Jinjie Ruan (3): genirq: Reuse irq_is_nmi() arm64: entry: Support hardware xint arm64: entry: Support hardware xcall arch/Kconfig | 14 ++-- arch/arm64/Kconfig | 12 ++++ arch/arm64/include/asm/sysreg.h | 7 ++ arch/arm64/kernel/cpufeature.c | 107 ++++++++++++++++++++++++++++- arch/arm64/kernel/entry-common.c | 39 ++++++++--- arch/arm64/kernel/entry.S | 74 ++++++++++++++++++-- arch/arm64/tools/cpucaps | 4 +- drivers/irqchip/irq-gic-v3.c | 89 ++++++++++++++++++++++-- include/linux/irqchip/arm-gic-v3.h | 6 +- kernel/irq/debugfs.c | 6 +- kernel/irq/internals.h | 8 ++- kernel/irq/irqdesc.c | 5 -- kernel/irq/manage.c | 16 ++--- kernel/irq/resend.c | 2 +- 14 files changed, 341 insertions(+), 48 deletions(-) -- 2.34.1