linux-kernel - [PATCH 2/4] xen/perf: Define .glob for the different hypercalls.

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Message-Id: <1341330038-21686-3-git-send-email-konrad.wilk@oracle.com>
Date:	Tue,  3 Jul 2012 11:40:36 -0400
From:	Konrad Rzeszutek Wilk <konrad.wilk@...cle.com>
To:	xen-devel@...ts.xensource.com, linux-kernel@...r.kernel.org
Cc:	Konrad Rzeszutek Wilk <konrad.wilk@...cle.com>
Subject: [PATCH 2/4] xen/perf: Define .glob for the different hypercalls.

This allows us in perf to have this:

 99.67%  [kernel]             [k] xen_hypercall_sched_op
  0.11%  [kernel]             [k] xen_hypercall_xen_version

instead of the borring ever-encompassing:

 99.13%  [kernel]              [k] hypercall_page

Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@...cle.com>
---
 arch/x86/xen/xen-head.S |  102 ++++++++++++++++++++++++++++++++++++++++++++++-
 1 files changed, 100 insertions(+), 2 deletions(-)

diff --git a/arch/x86/xen/xen-head.S b/arch/x86/xen/xen-head.S
index aaa7291..f6ba51d 100644
--- a/arch/x86/xen/xen-head.S
+++ b/arch/x86/xen/xen-head.S
@@ -28,9 +28,107 @@ ENTRY(startup_xen)
 	__FINIT
 
 .pushsection .text
-	.align PAGE_SIZE
+	.balign PAGE_SIZE
 ENTRY(hypercall_page)
-	.skip PAGE_SIZE
+ENTRY(xen_hypercall_set_trap_table)
+	.skip 32
+ENTRY(xen_hypercall_mmu_update)
+	.skip 32
+ENTRY(xen_hypercall_set_gdt)
+	.skip 32
+ENTRY(xen_hypercall_stack_switch)
+	.skip 32
+ENTRY(xen_hypercall_set_callbacks)
+	.skip 32
+ENTRY(xen_hypercall_fpu_taskswitch)
+	.skip 32
+ENTRY(xen_hypercall_sched_op_compat)
+	.skip 32
+ENTRY(xen_hypercall_platform_op)
+	.skip 32
+ENTRY(xen_hypercall_set_debugreg)
+	.skip 32
+ENTRY(xen_hypercall_get_debugreg)
+	.skip 32
+ENTRY(xen_hypercall_update_descriptor)
+	.skip 32
+ENTRY(xen_hypercall_ni)
+	.skip 32
+ENTRY(xen_hypercall_memory_op)
+	.skip 32
+ENTRY(xen_hypercall_multicall)
+	.skip 32
+ENTRY(xen_hypercall_update_va_mapping)
+	.skip 32
+ENTRY(xen_hypercall_set_timer_op)
+	.skip 32
+ENTRY(xen_hypercall_event_channel_op_compat)
+	.skip 32
+ENTRY(xen_hypercall_xen_version)
+	.skip 32
+ENTRY(xen_hypercall_console_io)
+	.skip 32
+ENTRY(xen_hypercall_physdev_op_compat)
+	.skip 32
+ENTRY(xen_hypercall_grant_table_op)
+	.skip 32
+ENTRY(xen_hypercall_vm_assist)
+	.skip 32
+ENTRY(xen_hypercall_update_va_mapping_otherdomain)
+	.skip 32
+ENTRY(xen_hypercall_iret)
+	.skip 32
+ENTRY(xen_hypercall_vcpu_op)
+	.skip 32
+ENTRY(xen_hypercall_set_segment_base)
+	.skip 32
+ENTRY(xen_hypercall_mmuext_op)
+	.skip 32
+ENTRY(xen_hypercall_xsm_op)
+	.skip 32
+ENTRY(xen_hypercall_nmi_op)
+	.skip 32
+ENTRY(xen_hypercall_sched_op)
+	.skip 32
+ENTRY(xen_hypercall_callback_op)
+	.skip 32
+ENTRY(xen_hypercall_xenoprof_op)
+	.skip 32
+ENTRY(xen_hypercall_event_channel_op)
+	.skip 32
+ENTRY(xen_hypercall_physdev_op)
+	.skip 32
+ENTRY(xen_hypercall_hvm_op)
+	.skip 32
+ENTRY(xen_hypercall_sysctl)
+	.skip 32
+ENTRY(xen_hypercall_domctl)
+	.skip 32
+ENTRY(xen_hypercall_kexec_op)
+	.skip 32
+ENTRY(xen_hypercall_tmem_op) /* 38 */
+	.skip 32
+ENTRY(xen_hypercall_rsvr)
+	.skip 320
+ENTRY(xen_hypercall_mca) /* 48 */
+	.skip 32
+ENTRY(xen_hypercall_arch_1)
+	.skip 32
+ENTRY(xen_hypercall_arch_2)
+	.skip 32
+ENTRY(xen_hypercall_arch_3)
+	.skip 32
+ENTRY(xen_hypercall_arch_4)
+	.skip 32
+ENTRY(xen_hypercall_arch_5)
+	.skip 32
+ENTRY(xen_hypercall_arch_6)
+	.skip 32
+ENTRY(xen_hypercall_arch_7)
+	.skip 32
+ENTRY(xen_hypercall_other)
+	.skip 2272
+
 .popsection
 
 	ELFNOTE(Xen, XEN_ELFNOTE_GUEST_OS,       .asciz "linux")
-- 
1.7.7.6

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