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authorVitaly Kuznetsov <vkuznets@redhat.com>2017-08-02 19:09:14 +0300
committerIngo Molnar <mingo@kernel.org>2017-08-10 17:50:22 +0300
commitfc53662f13b889a5a1c069e79ee1e3d4534df132 (patch)
tree5f4c144bbc80cb0e6862fc59caf82665164dbf39 /include/linux/hyperv.h
parent79cadff2d92bb8b1448f6dba6861d15adc3dc4cb (diff)
downloadlinux-fc53662f13b889a5a1c069e79ee1e3d4534df132.tar.xz
x86/hyper-v: Make hv_do_hypercall() inline
We have only three call sites for hv_do_hypercall() and we're going to change HVCALL_SIGNAL_EVENT to doing fast hypercall so we can inline this function for optimization. Hyper-V top level functional specification states that r9-r11 registers and flags may be clobbered by the hypervisor during hypercall and with inlining this is somewhat important, add the clobbers. Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com> Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com> Reviewed-by: Stephen Hemminger <sthemmin@microsoft.com> Cc: Andy Lutomirski <luto@kernel.org> Cc: Haiyang Zhang <haiyangz@microsoft.com> Cc: Jork Loeser <Jork.Loeser@microsoft.com> Cc: K. Y. Srinivasan <kys@microsoft.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Simon Xiao <sixiao@microsoft.com> Cc: Steven Rostedt <rostedt@goodmis.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: devel@linuxdriverproject.org Link: http://lkml.kernel.org/r/20170802160921.21791-3-vkuznets@redhat.com Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'include/linux/hyperv.h')
-rw-r--r--include/linux/hyperv.h1
1 files changed, 0 insertions, 1 deletions
diff --git a/include/linux/hyperv.h b/include/linux/hyperv.h
index b7d7bbec74e0..6608a71e7d79 100644
--- a/include/linux/hyperv.h
+++ b/include/linux/hyperv.h
@@ -1187,7 +1187,6 @@ int vmbus_allocate_mmio(struct resource **new, struct hv_device *device_obj,
bool fb_overlap_ok);
void vmbus_free_mmio(resource_size_t start, resource_size_t size);
int vmbus_cpu_number_to_vp_number(int cpu_number);
-u64 hv_do_hypercall(u64 control, void *input, void *output);
/*
* GUID definitions of various offer types - services offered to the guest.