diff options
author | RajithaY <rajithax.yerrumsetty@intel.com> | 2017-04-25 03:31:15 -0700 |
---|---|---|
committer | Rajitha Yerrumchetty <rajithax.yerrumsetty@intel.com> | 2017-05-22 06:48:08 +0000 |
commit | bb756eebdac6fd24e8919e2c43f7d2c8c4091f59 (patch) | |
tree | ca11e03542edf2d8f631efeca5e1626d211107e3 /qemu/roms/ipxe/src/arch/i386/transitions/librm_test.c | |
parent | a14b48d18a9ed03ec191cf16b162206998a895ce (diff) |
Adding qemu as a submodule of KVMFORNFV
This Patch includes the changes to add qemu as a submodule to
kvmfornfv repo and make use of the updated latest qemu for the
execution of all testcase
Change-Id: I1280af507a857675c7f81d30c95255635667bdd7
Signed-off-by:RajithaY<rajithax.yerrumsetty@intel.com>
Diffstat (limited to 'qemu/roms/ipxe/src/arch/i386/transitions/librm_test.c')
-rw-r--r-- | qemu/roms/ipxe/src/arch/i386/transitions/librm_test.c | 122 |
1 files changed, 0 insertions, 122 deletions
diff --git a/qemu/roms/ipxe/src/arch/i386/transitions/librm_test.c b/qemu/roms/ipxe/src/arch/i386/transitions/librm_test.c deleted file mode 100644 index f1a517eda..000000000 --- a/qemu/roms/ipxe/src/arch/i386/transitions/librm_test.c +++ /dev/null @@ -1,122 +0,0 @@ -/* - * Copyright (C) 2014 Michael Brown <mbrown@fensystems.co.uk>. - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License as - * published by the Free Software Foundation; either version 2 of the - * License, or any later version. - * - * This program is distributed in the hope that it will be useful, but - * WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA - * 02110-1301, USA. - * - * You can also choose to distribute this program under the terms of - * the Unmodified Binary Distribution Licence (as given in the file - * COPYING.UBDL), provided that you have satisfied its requirements. - */ - -FILE_LICENCE ( GPL2_OR_LATER_OR_UBDL ); - -/** @file - * - * Real mode transition self-tests - * - * This file allows for easy measurement of the time taken to perform - * real mode transitions, which may have a substantial overhead when - * running under a hypervisor. - * - */ - -/* Forcibly enable assertions */ -#undef NDEBUG - -#include <ipxe/test.h> -#include <ipxe/profile.h> -#include <realmode.h> - -/** Number of sample iterations for profiling */ -#define PROFILE_COUNT 4096 - -/** Protected-to-real mode transition profiler */ -static struct profiler p2r_profiler __profiler = { .name = "p2r" }; - -/** Real-to-protected mode transition profiler */ -static struct profiler r2p_profiler __profiler = { .name = "r2p" }; - -/** Real-mode call profiler */ -static struct profiler real_call_profiler __profiler = { .name = "real_call" }; - -/** Protected-mode call profiler */ -static struct profiler prot_call_profiler __profiler = { .name = "prot_call" }; - -/** - * Dummy protected-mode function - */ -static void librm_test_prot_call ( void ) { - /* Do nothing */ -} - -/** - * Perform real mode transition self-tests - * - */ -static void librm_test_exec ( void ) { - unsigned int i; - unsigned long timestamp; - unsigned long started; - unsigned long stopped; - unsigned int discard_d; - - /* Profile mode transitions. We want to profile each - * direction of the transition separately, so perform an RDTSC - * while in real mode and tweak the profilers' start/stop - * times appropriately. - */ - for ( i = 0 ; i < PROFILE_COUNT ; i++ ) { - profile_start ( &p2r_profiler ); - __asm__ __volatile__ ( REAL_CODE ( "rdtsc\n\t" ) - : "=a" ( timestamp ), "=d" ( discard_d ) - : ); - profile_start_at ( &r2p_profiler, timestamp ); - profile_stop ( &r2p_profiler ); - profile_stop_at ( &p2r_profiler, timestamp ); - } - - /* Profile complete real-mode call cycle */ - for ( i = 0 ; i < PROFILE_COUNT ; i++ ) { - profile_start ( &real_call_profiler ); - __asm__ __volatile__ ( REAL_CODE ( "" ) : : ); - profile_stop ( &real_call_profiler ); - } - - /* Profile complete protected-mode call cycle */ - for ( i = 0 ; i < PROFILE_COUNT ; i++ ) { - __asm__ __volatile__ ( REAL_CODE ( "rdtsc\n\t" - "movl %0, %2\n\t" - "pushl %3\n\t" - "pushw %%cs\n\t" - "call prot_call\n\t" - "addw $4, %%sp\n\t" - "rdtsc\n\t" ) - : "=a" ( stopped ), "=d" ( discard_d ), - "=r" ( started ) - : "i" ( librm_test_prot_call ) ); - profile_start_at ( &prot_call_profiler, started ); - profile_stop_at ( &prot_call_profiler, stopped ); - } -} - -/** Real mode transition self-test */ -struct self_test librm_test __self_test = { - .name = "librm", - .exec = librm_test_exec, -}; - -REQUIRING_SYMBOL ( librm_test ); -REQUIRE_OBJECT ( test ); |