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[v1.03][PPC] Implement hypervisor detection in PowerPC

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Dr-Noob
2023-05-04 18:56:31 +02:00
parent ebe7312c9d
commit 0397db2fd8
7 changed files with 63 additions and 6 deletions
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34
src/ppc/ppc.c
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@@ -11,6 +11,17 @@
#include "../common/udev.h"
#include "../common/global.h"
static char *hv_vendors_name[] = {
[HV_VENDOR_KVM] = "KVM",
[HV_VENDOR_QEMU] = "QEMU",
[HV_VENDOR_HYPERV] = "Microsoft Hyper-V",
[HV_VENDOR_VMWARE] = "VMware",
[HV_VENDOR_XEN] = "Xen",
[HV_VENDOR_PARALLELS] = "Parallels",
[HV_VENDOR_PHYP] = "pHyp",
[HV_VENDOR_INVALID] = STRING_UNKNOWN
};
struct cache* get_cache_info(struct cpuInfo* cpu) {
struct cache* cach = emalloc(sizeof(struct cache));
init_cache_struct(cach);
@@ -164,6 +175,28 @@ int64_t get_peak_performance(struct cpuInfo* cpu, struct topology* topo, int64_t
return flops;
}
struct hypervisor* get_hp_info(void) {
struct hypervisor* hv = emalloc(sizeof(struct hypervisor));
hv->present = false;
// Weird heuristic found in lscpu:
// https://github.com/util-linux/util-linux/blob/master/sys-utils/lscpu-virt.c
if(access("/proc" _PATH_DT_IBM_PARTIT_NAME, F_OK) == 0 &&
access("/proc" _PATH_DT_HMC_MANAGED, F_OK) == 0 &&
access("/proc" _PATH_DT_QEMU_WIDTH, F_OK) != 0) {
hv->present = true;
hv->hv_vendor = HV_VENDOR_PHYP;
}
else if(is_devtree_compatible("qemu,pseries")) {
hv->present = true;
hv->hv_vendor = HV_VENDOR_QEMU;
}
hv->hv_name = hv_vendors_name[hv->hv_vendor];
return hv;
}
struct cpuInfo* get_cpu_info(void) {
struct cpuInfo* cpu = emalloc(sizeof(struct cpuInfo));
struct features* feat = emalloc(sizeof(struct features));
@@ -182,6 +215,7 @@ struct cpuInfo* get_cpu_info(void) {
printWarn("Could not open '%s'", path);
}
cpu->pvr = mfpvr();
cpu->hv = get_hp_info();
cpu->arch = get_cpu_uarch(cpu);
cpu->freq = get_frequency_info();
cpu->topo = get_topology_info(cpu->cach);

7
src/ppc/udev.h
View File

@@ -2,8 +2,11 @@
#define __UDEV_PPC__
#include "../common/udev.h"
#define _PATH_DT "/proc/device-tree/vpd/root-node-vpd@a000/enclosure@1e00/backplane@800/processor@1000"
#define _PATH_DT_PART "/part-number"
#define _PATH_DT "/proc/device-tree/vpd/root-node-vpd@a000/enclosure@1e00/backplane@800/processor@1000"
#define _PATH_DT_PART "/part-number"
#define _PATH_DT_IBM_PARTIT_NAME "/device-tree/ibm,partition-name"
#define _PATH_DT_HMC_MANAGED "/device-tree/hmc-managed?"
#define _PATH_DT_QEMU_WIDTH "/device-tree/chosen/qemu,graphic-width"
bool fill_core_ids_from_sys(int *core_ids, int total_cores);
bool fill_package_ids_from_sys(int* package_ids, int total_cores);