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8219746: Provide virtualization related info in the hs_error file on linux ppc64 / ppc64le

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Reviewed-by: dholmes, lucy, mdoerr
This commit is contained in:
Matthias Baesken 2019-02-28 10:28:34 +01:00
parent 4e09929ef9
commit 689760bc12
1 changed files with 24 additions and 5 deletions
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29
src/hotspot/os/linux/os_linux.cpp
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@ -1856,10 +1856,9 @@ static bool _print_ascii_file(const char* filename, outputStream* st, const char
return true;
}
#if defined(S390)
#if defined(S390) || defined(PPC64)
// keywords_to_match - NULL terminated array of keywords
static bool print_matching_lines_from_sysinfo_file(outputStream* st, const char* keywords_to_match[]) {
const char* filename = "/proc/sysinfo";
static bool print_matching_lines_from_file(const char* filename, outputStream* st, const char* keywords_to_match[]) {
char* line = NULL;
size_t length = 0;
FILE* fp = fopen(filename, "r");
@ -2191,9 +2190,29 @@ void os::Linux::print_virtualization_info(outputStream* st) {
// - whole "Box" (CPUs )
// - z/VM / KVM (VM<nn>); this is not available in an LPAR-only setup
const char* kw[] = { "LPAR", "CPUs", "VM", NULL };
const char* info_file = "/proc/sysinfo";
if (! print_matching_lines_from_sysinfo_file(st, kw)) {
st->print_cr(" </proc/sysinfo Not Available>");
if (!print_matching_lines_from_file(info_file, st, kw)) {
st->print_cr(" <%s Not Available>", info_file);
}
#elif defined(PPC64)
const char* info_file = "/proc/ppc64/lparcfg";
const char* kw[] = { "system_type=", // qemu indicates PowerKVM
"partition_entitled_capacity=", // entitled processor capacity percentage
"partition_max_entitled_capacity=",
"capacity_weight=", // partition CPU weight
"partition_active_processors=",
"partition_potential_processors=",
"entitled_proc_capacity_available=",
"capped=", // 0 - uncapped, 1 - vcpus capped at entitled processor capacity percentage
"shared_processor_mode=", // (non)dedicated partition
"system_potential_processors=",
"pool=", // CPU-pool number
"pool_capacity=",
"NumLpars=", // on non-KVM machines, NumLpars is not found for full partition mode machines
NULL };
if (!print_matching_lines_from_file(info_file, st, kw)) {
st->print_cr(" <%s Not Available>", info_file);
}
#endif
}