linux_dsm_epyc7002/arch/x86/entry
Michael Kelley 248e742a39 Drivers: hv: vmbus: Implement Direct Mode for stimer0
The 2016 version of Hyper-V offers the option to operate the guest VM
per-vcpu stimer's in Direct Mode, which means the timer interupts on its
own vector rather than queueing a VMbus message. Direct Mode reduces
timer processing overhead in both the hypervisor and the guest, and
avoids having timer interrupts pollute the VMbus interrupt stream for
the synthetic NIC and storage.  This patch enables Direct Mode by
default on stimer0 when running on a version of Hyper-V that supports
it.

In prep for coming support of Hyper-V on ARM64, the arch independent
portion of the code contains calls to routines that will be populated
on ARM64 but are not needed and do nothing on x86.

Signed-off-by: Michael Kelley <mikelley@microsoft.com>
Signed-off-by: K. Y. Srinivasan <kys@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-03-06 09:57:17 -08:00
..
syscalls Merge branch 'x86/build' into x86/asm, to fix up conflicts 2017-11-07 10:54:30 +01:00
vdso Merge branch 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2017-12-06 17:47:29 -08:00
vsyscall x86/pti: Map the vsyscall page if needed 2017-12-23 21:13:00 +01:00
calling.h x86/entry/64: Simplify ENCODE_FRAME_POINTER 2018-02-21 16:54:07 +01:00
common.c Merge branch 'x86-pti-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2018-02-04 11:45:55 -08:00
entry_32.S Drivers: hv: vmbus: Implement Direct Mode for stimer0 2018-03-06 09:57:17 -08:00
entry_64_compat.S x86/entry/64: Open-code switch_to_thread_stack() 2018-02-21 16:54:05 +01:00
entry_64.S Drivers: hv: vmbus: Implement Direct Mode for stimer0 2018-03-06 09:57:17 -08:00
Makefile License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
syscall_32.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
syscall_64.c x86/entry/64: Remove the SYSCALL64 fast path 2018-01-30 15:30:36 +01:00
thunk_32.S x86: move exports to actual definitions 2016-08-07 23:47:15 -04:00
thunk_64.S x86: move exports to actual definitions 2016-08-07 23:47:15 -04:00