| Message ID | 20200708013446.2600256-22-sjg@chromium.org |
|---|---|
| State | Superseded |
| Headers | show |
| Series | x86: Enhance MTRR functionality to support multiple CPUs | expand |
On Wed, Jul 8, 2020 at 9:37 AM Simon Glass <sjg at chromium.org> wrote: > > 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 at chromium.org> > Reviewed-by: Wolfgang Wallner <wolfgang.wallner at br-automation.com> > --- > > (no changes since v1) > > cmd/x86/mtrr.c | 22 +++++++++++++++++++++- > 1 file changed, 21 insertions(+), 1 deletion(-) > Reviewed-by: Bin Meng <bmeng.cn at gmail.com> Tested-by: Bin Meng <bmeng.cn at gmail.com>
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':