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| author | Samuel Ortiz <sameo@linux.intel.com> | 2018-10-23 19:35:02 +0200 |
|---|---|---|
| committer | Paolo Bonzini <bonzini@gnu.org> | 2018-10-24 00:37:50 +0200 |
| commit | 32f82f8789932397e5d79ee5af13f56b088f1ca9 (patch) | |
| tree | f735bc176917abeffb61ded7f121f9ad89637fa8 /fw_cfg.c | |
| parent | ac9488f26528394856b94bda0797f5bd9c69a26a (diff) | |
| download | qboot-32f82f8789932397e5d79ee5af13f56b088f1ca9.zip qboot-32f82f8789932397e5d79ee5af13f56b088f1ca9.tar.gz qboot-32f82f8789932397e5d79ee5af13f56b088f1ca9.tar.bz2 | |
benchmark: Define exit points and values
Benchmarking IO port addresses and return values are now defined
through a dedicated header.
Each exit point can have its own IO port address and return value.
With this we are able to discriminate between similar code paths
through the QEMU process return values or between different
code paths by having the QEMU debugexit device monitoring
different IO port addresses.
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
Diffstat (limited to 'fw_cfg.c')
| -rw-r--r-- | fw_cfg.c | 3 |
1 files changed, 2 insertions, 1 deletions
@@ -7,6 +7,7 @@ #include "bswap.h" #include "linuxboot.h" #include "multiboot.h" +#include "benchmark.h" struct fw_cfg_file { uint32_t size; @@ -174,7 +175,7 @@ static void boot_multiboot_from_fw_cfg(void) /* Exit just before getting to vmlinuz, so that it is easy * to time/profile the firmware. */ - outb(0xf4, 1); + outb(LINUX_EXIT_PORT, LINUX_START_FWCFG); #endif fw_cfg_select(FW_CFG_KERNEL_ENTRY); |