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util-linux/util-linux-lscpu-improve-hypervisor-detection.patch
Stephan Kulow 668729991b Accepting request 229044 from Base:System 
- remove unnecessarily added patches from SLE11:
  * util-linux-update-default-commit-interval.patch, openSUSE  has
    never changed the default and neither will SLE12
  * sfdisk-warn-about-2TB-limit.patch, fixed by upstream years ago
  * umount-avoid-readlink.patch, this patch only affects unused
    code and the used code does not have this bug
- edit util-linux-lscpu-improve-hypervisor-detection.patch to not
  change the default behaviour of "lscpu -p" as documented in it's
  man page. Now this patch only affects the summary output.

Also see discussion here
http://lists.opensuse.org/opensuse-factory/2014-03/msg00256.html (forwarded request 228719 from rudi_m)

OBS-URL: https://build.opensuse.org/request/show/229044
OBS-URL: https://build.opensuse.org/package/show/openSUSE:Factory/util-linux?expand=0&rev=183
2014-04-06 07:56:38 +00:00

207 lines
5.9 KiB
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Index: util-linux-2.24.1/sys-utils/lscpu.c
===================================================================
--- util-linux-2.24.1.orig/sys-utils/lscpu.c
+++ util-linux-2.24.1/sys-utils/lscpu.c
@@ -32,6 +32,15 @@
#include <stdarg.h>
#include <sys/types.h>
#include <sys/stat.h>
+#include <stdint.h>
+#include <signal.h>
+#include <strings.h>
+#include <setjmp.h>
+#if defined(__x86_64__) || defined(__i386__)
+#ifdef HAVE_sys_io_h
+#include <sys/io.h>
+#endif
+#endif
#include "cpuset.h"
#include "nls.h"
@@ -59,6 +68,7 @@
#define _PATH_PROC_STATUS "/proc/self/status"
#define _PATH_PROC_VZ "/proc/vz"
#define _PATH_PROC_BC "/proc/bc"
+#define _PATH_PROC_DEVICETREE "/proc/device-tree"
#define _PATH_DEV_MEM "/dev/mem"
/* virtualization types */
@@ -86,7 +96,28 @@ const char *hv_vendors[] = {
[HYPER_UML] = "User-mode Linux",
[HYPER_INNOTEK] = "Innotek GmbH",
[HYPER_HITACHI] = "Hitachi",
- [HYPER_PARALLELS] = "Parallels"
+ [HYPER_PARALLELS] = "Parallels",
+ [HYPER_VBOX] = "Oracle",
+ [HYPER_OS400] = "OS/400",
+ [HYPER_PHYP] = "pHyp"
+};
+
+const int hv_vendor_pci[] = {
+ [HYPER_NONE] = 0x0000,
+ [HYPER_XEN] = 0x5853,
+ [HYPER_KVM] = 0x0000,
+ [HYPER_MSHV] = 0x1414,
+ [HYPER_VMWARE] = 0x15ad,
+ [HYPER_VBOX] = 0x80ee
+};
+
+const int hv_graphics_pci[] = {
+ [HYPER_NONE] = 0x0000,
+ [HYPER_XEN] = 0x0001,
+ [HYPER_KVM] = 0x0000,
+ [HYPER_MSHV] = 0x5353,
+ [HYPER_VMWARE] = 0x0710,
+ [HYPER_VBOX] = 0xbeef
};
/* CPU modes */
@@ -550,10 +581,111 @@ read_hypervisor_cpuid(struct lscpu_desc
desc->hyper = HYPER_VMWARE;
}
+#define VMWARE_BDOOR_MAGIC 0x564D5868
+#define VMWARE_BDOOR_PORT 0x5658
+#define VMWARE_BDOOR_CMD_GETVERSION 10
+
+#define VMWARE_BDOOR(eax, ebx, ecx, edx) \
+ __asm__("inl (%%dx)" : \
+ "=a"(eax), "=c"(ecx), "=d"(edx), "=b"(ebx) : \
+ "0"(VMWARE_BDOOR_MAGIC), "1"(VMWARE_BDOOR_CMD_GETVERSION), \
+ "2"(VMWARE_BDOOR_PORT), "3"(0) : \
+ "memory");
+
+static jmp_buf segv_handler_env;
+
+static void
+segv_handler(int sig, siginfo_t *info, void *ignored)
+{
+ siglongjmp(segv_handler_env, 1);
+}
+
+static int
+is_vmware_platform(void)
+{
+ uint32_t eax, ebx, ecx, edx;
+ struct sigaction act, oact;
+
+ /*
+ * The assembly routine for vmware detection works
+ * fine under vmware, even if ran as regular user. But
+ * on real HW or under other hypervisors, it segfaults (which is
+ * expected). So we temporarily install SIGSEGV handler to catch
+ * the signal. All this magic is needed because lscpu
+ * isn't supposed to require root privileges.
+ */
+ if (sigsetjmp(segv_handler_env, 1))
+ return 0;
+
+ bzero(&act, sizeof(act));
+ act.sa_sigaction = segv_handler;
+ act.sa_flags = SA_SIGINFO;
+
+ if (sigaction(SIGSEGV, &act, &oact))
+ err(EXIT_FAILURE, _("error: can not set signal handler"));
+
+ VMWARE_BDOOR(eax, ebx, ecx, edx);
+
+ if (sigaction(SIGSEGV, &oact, NULL))
+ err(EXIT_FAILURE, _("error: can not restore signal handler"));
+
+ return eax != (uint32_t)-1 && ebx == VMWARE_BDOOR_MAGIC;
+}
+
#else /* ! __x86_64__ */
static void
read_hypervisor_cpuid(struct lscpu_desc *desc __attribute__((__unused__)))
{
+#ifdef __powerpc__
+ /* powerpc:
+ * IBM iSeries: legacy, if /proc/iSeries exists, its para-virtualized on top of OS/400
+ * IBM pSeries: always has a hypervisor
+ * if partition-name is "full", its kind of "bare-metal": full-system-partition
+ * otherwise its some partition created by Hardware Management Console
+ * in any case, its always some sort of HVM
+ * KVM: "linux,kvm" in /hypervisor/compatible indicates a KVM guest
+ * Xen: not in use, not detected
+ */
+ if (path_exist("/proc/iSeries")) {
+ desc->hyper = HYPER_OS400;
+ desc->virtype = VIRT_FULL;
+ } else if (path_exist(_PATH_PROC_DEVICETREE "/ibm,partition-name")) {
+ FILE *fd;
+ desc->hyper = HYPER_PHYP;
+ desc->virtype = VIRT_FULL;
+ fd = fopen(_PATH_PROC_DEVICETREE "/ibm,partition-name", "r");
+ if (fd) {
+ char buf[256];
+ if (fscanf(fd, "%s", buf) == 1 && !strcmp(buf, "full"))
+ desc->virtype = VIRT_NONE;
+ fclose(fd);
+ }
+ } else if (path_exist(_PATH_PROC_DEVICETREE "/hypervisor/compatible")) {
+ FILE *fd;
+ fd = fopen(_PATH_PROC_DEVICETREE "/hypervisor/compatible", "r");
+ if (fd) {
+ char buf[256];
+ int i;
+ memset(buf, 0, sizeof(buf));
+ fread(buf, sizeof(buf) - 1, 1, fd);
+ fclose(fd);
+ for (i = 0; i < sizeof(buf);) {
+ if (!strcmp(&buf[i], "linux,kvm")) {
+ desc->hyper = HYPER_KVM;
+ desc->virtype = VIRT_FULL;
+ break;
+ }
+ i += strlen(&buf[i]);
+ i++;
+ }
+ }
+ }
+#endif
+}
+
+static int is_vmware_platform(void)
+{
+ return 0;
}
#endif
@@ -588,9 +720,18 @@ read_hypervisor(struct lscpu_desc *desc,
desc->hyper = HYPER_XEN;
/* Xen full-virt on non-x86_64 */
- } else if (has_pci_device(0x5853, 0x0001)) {
+ } else if (has_pci_device( hv_vendor_pci[HYPER_XEN], hv_graphics_pci[HYPER_XEN])) {
desc->hyper = HYPER_XEN;
desc->virtype = VIRT_FULL;
+ } else if (is_vmware_platform()) {
+ desc->hyper = HYPER_VMWARE;
+ desc->virtype = VIRT_FULL;
+ } else if (has_pci_device( hv_vendor_pci[HYPER_VMWARE], hv_graphics_pci[HYPER_VMWARE])) {
+ desc->hyper = HYPER_VMWARE;
+ desc->virtype = VIRT_FULL;
+ } else if (has_pci_device( hv_vendor_pci[HYPER_VBOX], hv_graphics_pci[HYPER_VBOX])) {
+ desc->hyper = HYPER_VBOX;
+ desc->virtype = VIRT_FULL;
/* IBM PR/SM */
} else if (path_exist(_PATH_PROC_SYSINFO)) {
Index: util-linux-2.24.1/sys-utils/lscpu.h
===================================================================
--- util-linux-2.24.1.orig/sys-utils/lscpu.h
+++ util-linux-2.24.1/sys-utils/lscpu.h
@@ -13,7 +13,10 @@ enum {
HYPER_UML,
HYPER_INNOTEK, /* VBOX */
HYPER_HITACHI,
- HYPER_PARALLELS /* OpenVZ/VIrtuozzo */
+ HYPER_PARALLELS, /* OpenVZ/VIrtuozzo */
+ HYPER_VBOX,
+ HYPER_OS400,
+ HYPER_PHYP
};
extern int read_hypervisor_dmi(void);
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