Messages in this thread Patch in this message | | | From | Nuno Das Neves <> | Subject | [PATCH 10/15] x86: hyperv: Add mshv_handler irq handler and setup function | Date | Thu, 27 Jul 2023 12:54:45 -0700 |
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This will handle SYNIC interrupts such as intercepts, doorbells, and scheduling messages intended for the mshv driver.
Signed-off-by: Nuno Das Neves <nunodasneves@linux.microsoft.com> --- arch/x86/kernel/cpu/mshyperv.c | 9 +++++++++ drivers/hv/hv_common.c | 5 +++++ include/asm-generic/mshyperv.h | 2 ++ 3 files changed, 16 insertions(+)
diff --git a/arch/x86/kernel/cpu/mshyperv.c b/arch/x86/kernel/cpu/mshyperv.c index e44291e902ae..442d00fe70f1 100644 --- a/arch/x86/kernel/cpu/mshyperv.c +++ b/arch/x86/kernel/cpu/mshyperv.c @@ -105,6 +105,7 @@ void hv_set_register(unsigned int reg, u64 value) } EXPORT_SYMBOL_GPL(hv_set_register); +static void (*mshv_handler)(void); static void (*vmbus_handler)(void); static void (*hv_stimer0_handler)(void); static void (*hv_kexec_handler)(void); @@ -115,6 +116,9 @@ DEFINE_IDTENTRY_SYSVEC(sysvec_hyperv_callback) struct pt_regs *old_regs = set_irq_regs(regs); inc_irq_stat(irq_hv_callback_count); + if (mshv_handler) + mshv_handler(); + if (vmbus_handler) vmbus_handler(); @@ -139,6 +143,11 @@ DEFINE_IDTENTRY_SYSVEC(sysvec_hyperv_nested_vmbus_intr) set_irq_regs(old_regs); } +void hv_setup_mshv_irq(void (*handler)(void)) +{ + mshv_handler = handler; +} + void hv_setup_vmbus_handler(void (*handler)(void)) { vmbus_handler = handler; diff --git a/drivers/hv/hv_common.c b/drivers/hv/hv_common.c index 16f069beda78..678a3f2e1dc1 100644 --- a/drivers/hv/hv_common.c +++ b/drivers/hv/hv_common.c @@ -557,6 +557,11 @@ void __weak hv_remove_vmbus_handler(void) } EXPORT_SYMBOL_GPL(hv_remove_vmbus_handler); +void __weak hv_setup_mshv_irq(void (*handler)(void)) +{ +} +EXPORT_SYMBOL_GPL(hv_setup_mshv_irq); + void __weak hv_setup_kexec_handler(void (*handler)(void)) { } diff --git a/include/asm-generic/mshyperv.h b/include/asm-generic/mshyperv.h index 9118d678b27a..2b20994d809e 100644 --- a/include/asm-generic/mshyperv.h +++ b/include/asm-generic/mshyperv.h @@ -193,6 +193,8 @@ void hv_remove_vmbus_handler(void); void hv_setup_stimer0_handler(void (*handler)(void)); void hv_remove_stimer0_handler(void); +void hv_setup_mshv_irq(void (*handler)(void)); + void hv_setup_kexec_handler(void (*handler)(void)); void hv_remove_kexec_handler(void); void hv_setup_crash_handler(void (*handler)(struct pt_regs *regs)); -- 2.25.1
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