From 9918cc2e3275bf7f3561e4de1d5a3314183e71dc Mon Sep 17 00:00:00 2001 From: "David S. Miller" Date: Sun, 15 Jul 2007 02:02:01 -0700 Subject: [PATCH] [SPARC64]: Give more accurate errors in dr_cpu_configure(). When cpu_up() fails, we can discern the most likely cause. If cpu_present() is false, this means the cpu did not appear in the MD. If -ENODEV is the error return value, then the processor did not boot properly into the kernel. Pass this information back in the dr-cpu response packet. Signed-off-by: David S. Miller --- arch/sparc64/kernel/ds.c | 16 +++++++++++++--- 1 file changed, 13 insertions(+), 3 deletions(-) diff --git a/arch/sparc64/kernel/ds.c b/arch/sparc64/kernel/ds.c index d412cf876ab4..b6331718ee0c 100644 --- a/arch/sparc64/kernel/ds.c +++ b/arch/sparc64/kernel/ds.c @@ -535,11 +535,21 @@ static int dr_cpu_configure(struct ds_cap_state *cp, u64 req_num, printk(KERN_INFO PFX "Starting cpu %d...\n", cpu); err = cpu_up(cpu); if (err) { + __u32 res = DR_CPU_RES_FAILURE; + __u32 stat = DR_CPU_STAT_UNCONFIGURED; + + if (!cpu_present(cpu)) { + /* CPU not present in MD */ + res = DR_CPU_RES_NOT_IN_MD; + stat = DR_CPU_STAT_NOT_PRESENT; + } else if (err == -ENODEV) { + /* CPU did not call in successfully */ + res = DR_CPU_RES_CPU_NOT_RESPONDING; + } + printk(KERN_INFO PFX "CPU startup failed err=%d\n", err); - dr_cpu_mark(resp, cpu, ncpus, - DR_CPU_RES_FAILURE, - DR_CPU_STAT_UNCONFIGURED); + dr_cpu_mark(resp, cpu, ncpus, res, stat); } } -- 2.39.2