diff options
| author | Michael Kelley <mikelley@microsoft.com> | 2021-03-03 00:38:18 +0300 |
|---|---|---|
| committer | Wei Liu <wei.liu@kernel.org> | 2021-03-08 20:33:00 +0300 |
| commit | d608715d4771cf2d63de07a5d7b026b6f52a70a5 (patch) | |
| tree | 73a567821ae3e494a4df3c3f08deffb6b3d8afdc /arch/x86/include/asm/mshyperv.h | |
| parent | 946f4b8680b8ad177f6489e023a1d95e82d502e2 (diff) | |
| download | linux-d608715d4771cf2d63de07a5d7b026b6f52a70a5.tar.xz | |
Drivers: hv: vmbus: Move handling of VMbus interrupts
VMbus interrupts are most naturally modelled as per-cpu IRQs. But
because x86/x64 doesn't have per-cpu IRQs, the core VMbus interrupt
handling machinery is done in code under arch/x86 and Linux IRQs are
not used. Adding support for ARM64 means adding equivalent code
using per-cpu IRQs under arch/arm64.
A better model is to treat per-cpu IRQs as the normal path (which it is
for modern architectures), and the x86/x64 path as the exception. Do this
by incorporating standard Linux per-cpu IRQ allocation into the main VMbus
driver, and bypassing it in the x86/x64 exception case. For x86/x64,
special case code is retained under arch/x86, but no VMbus interrupt
handling code is needed under arch/arm64.
No functional change.
Signed-off-by: Michael Kelley <mikelley@microsoft.com>
Reviewed-by: Boqun Feng <boqun.feng@gmail.com>
Link: https://lore.kernel.org/r/1614721102-2241-7-git-send-email-mikelley@microsoft.com
Signed-off-by: Wei Liu <wei.liu@kernel.org>
Diffstat (limited to 'arch/x86/include/asm/mshyperv.h')
| -rw-r--r-- | arch/x86/include/asm/mshyperv.h | 1 |
1 files changed, 0 insertions, 1 deletions
diff --git a/arch/x86/include/asm/mshyperv.h b/arch/x86/include/asm/mshyperv.h index a6c608df0217..c10dd1c9ed81 100644 --- a/arch/x86/include/asm/mshyperv.h +++ b/arch/x86/include/asm/mshyperv.h @@ -32,7 +32,6 @@ static inline u64 hv_get_register(unsigned int reg) #define hv_enable_vdso_clocksource() \ vclocks_set_used(VDSO_CLOCKMODE_HVCLOCK); #define hv_get_raw_timer() rdtsc_ordered() -#define hv_get_vector() HYPERVISOR_CALLBACK_VECTOR /* * Reference to pv_ops must be inline so objtool |