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| author | Simon Glass <sjg@chromium.org> | 2020-07-17 08:48:31 -0600 |
|---|---|---|
| committer | Bin Meng <bmeng.cn@gmail.com> | 2020-07-20 09:46:48 +0800 |
| commit | 2a3d9a7af9b3f7abad4d1bc4d40f1d665a54da8f (patch) | |
| tree | 4546d038f3daf513996fa0590f83274c01c3c501 | |
| parent | c6efee503103f0e210cdd82653aca6c10814198d (diff) | |
| download | u-boot-2a3d9a7af9b3f7abad4d1bc4d40f1d665a54da8f.tar.gz | |
x86: mtrr: Enhance 'mtrr' command to list MTRRs on any CPU
Update this command so it can list the MTRRs on a selected CPU. If
'-c all' is used, then all CPUs are listed.
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Wolfgang Wallner <wolfgang.wallner@br-automation.com>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Tested-by: Bin Meng <bmeng.cn@gmail.com>
| -rw-r--r-- | cmd/x86/mtrr.c | 22 |
1 files changed, 21 insertions, 1 deletions
diff --git a/cmd/x86/mtrr.c b/cmd/x86/mtrr.c index d8a7e56d5a..e118bba5a2 100644 --- a/cmd/x86/mtrr.c +++ b/cmd/x86/mtrr.c @@ -131,7 +131,27 @@ static int do_mtrr(struct cmd_tbl *cmdtp, int flag, int argc, } } if (cmd == 'l') { - return do_mtrr_list(cpu_select); + bool first; + int i; + + i = mp_first_cpu(cpu_select); + if (i < 0) { + printf("Invalid CPU (err=%d)\n", i); + return CMD_RET_FAILURE; + } + first = true; + for (; i >= 0; i = mp_next_cpu(cpu_select, i)) { + if (!first) + printf("\n"); + printf("CPU %d:\n", i); + ret = do_mtrr_list(i); + if (ret) { + printf("Failed to read CPU %d (err=%d)\n", i, + ret); + return CMD_RET_FAILURE; + } + first = false; + } } else { switch (cmd) { case 'e': |