diff options
| author | Michael Kelley <mikelley@microsoft.com> | 2020-08-14 12:45:04 -0700 |
|---|---|---|
| committer | Wei Liu <wei.liu@kernel.org> | 2020-10-14 19:14:51 +0000 |
| commit | 626b901f60446355e35e8c76c6b391a7d7491203 (patch) | |
| tree | 016851ad0974b1fb7ae254fb67f1ef7367b066d8 /arch/x86/kernel | |
| parent | 1f3aed01473c41c9f896fbf4c30d330655e8aa7c (diff) | |
Drivers: hv: vmbus: Add parsing of VMbus interrupt in ACPI DSDT
On ARM64, Hyper-V now specifies the interrupt to be used by VMbus
in the ACPI DSDT. This information is not used on x86 because the
interrupt vector must be hardcoded. But update the generic
VMbus driver to do the parsing and pass the information to the
architecture specific code that sets up the Linux IRQ. Update
consumers of the interrupt to get it from an architecture specific
function.
Signed-off-by: Michael Kelley <mikelley@microsoft.com>
Link: https://lore.kernel.org/r/1597434304-40631-1-git-send-email-mikelley@microsoft.com
Signed-off-by: Wei Liu <wei.liu@kernel.org>
Diffstat (limited to 'arch/x86/kernel')
| -rw-r--r-- | arch/x86/kernel/cpu/mshyperv.c | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/arch/x86/kernel/cpu/mshyperv.c b/arch/x86/kernel/cpu/mshyperv.c index 9834a43cd0fa..05ef1f4550cb 100644 --- a/arch/x86/kernel/cpu/mshyperv.c +++ b/arch/x86/kernel/cpu/mshyperv.c @@ -55,9 +55,14 @@ DEFINE_IDTENTRY_SYSVEC(sysvec_hyperv_callback) set_irq_regs(old_regs); } -void hv_setup_vmbus_irq(void (*handler)(void)) +int hv_setup_vmbus_irq(int irq, void (*handler)(void)) { + /* + * The 'irq' argument is ignored on x86/x64 because a hard-coded + * interrupt vector is used for Hyper-V interrupts. + */ vmbus_handler = handler; + return 0; } void hv_remove_vmbus_irq(void) |