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b2009641c4
When checking for XSAVE availability it makes more sense to check for OSXSAVE than to check for XSAVE. This way the check works on systems booted with the 'noxsave' kernel command-line. travis-ci: success for zdtm/static/fpu01: check for OSXSAVE instead of XSAVE Signed-off-by: Adrian Reber <areber@redhat.com> Signed-off-by: Pavel Emelyanov <xemul@virtuozzo.com>
119 lines
2 KiB
C
119 lines
2 KiB
C
#include <stdlib.h>
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#include <stdio.h>
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#include <string.h>
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#include <sys/types.h>
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#include "zdtmtst.h"
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#if defined(__i386__) || defined(__x86_64__)
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#include "cpuid.h"
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const char *test_doc = "Test if FPU data in YMM registers do survive the c/r";
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const char *test_author = "Cyrill Gorcunov <gorcunov@openvz.org>";
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static int verify_cpu(void)
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{
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unsigned int eax, ebx, ecx, edx;
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/* Do we have xsave? */
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cpuid(1, &eax, &ebx, &ecx, &edx);
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if (!(ecx & (1u << 27)))
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return -1;
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/* Is YMM here? */
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cpuid_count(0xd, 0, &eax, &ebx, &ecx, &edx);
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if ((eax & (0x4)) != 0x4)
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return -1;
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return 0;
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}
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#define __aligned __attribute__((aligned(64)))
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/*
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* These are random strings generated by pwgen.
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*/
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static __aligned unsigned char ymm1[32 + 1] = "code9Ee5sohphie1ae1kaeMahngoh5oe";
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static __aligned unsigned char ymm2[32 + 1] = "Tacuthahhien9Fi7aGhaa5toGh6vi7Ch";
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static __aligned unsigned char ymm3[32 + 1];
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static __aligned unsigned char ymm4[32 + 1];
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static int fpu_test(void)
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{
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int ret = 0;
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asm volatile("vmovapd %0, %%ymm0 \n"
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:
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: "m" (*ymm1)
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: "memory");
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asm volatile("vmovapd %0, %%ymm7 \n"
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:
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: "m" (*ymm2)
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: "memory");
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test_daemon();
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test_waitsig();
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asm volatile("vmovapd %%ymm0, %0 \n"
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: "=m" (*ymm3)
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:
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: "memory");
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asm volatile("vmovapd %%ymm7, %0 \n"
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: "=m" (*ymm4)
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:
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: "memory");
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if (memcmp(ymm1, ymm3, 32) || memcmp(ymm2, ymm4, 32)) {
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test_msg("Data mismatch ('%s' '%s' '%s' '%s')\n",
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ymm1, ymm2, ymm3, ymm4);
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ret = -1;
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} else {
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test_msg("Data match ('%s' '%s' '%s' '%s')\n",
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ymm1, ymm2, ymm3, ymm4);
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ret = 0;
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}
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return ret;
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}
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static int bare_run(void)
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{
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test_msg("Your cpu doesn't support ymm registers, skipping\n");
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test_daemon();
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test_waitsig();
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return 0;
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}
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int main(int argc, char *argv[])
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{
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int ret = 0;
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test_init(argc, argv);
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ret = verify_cpu() ? bare_run() : fpu_test();
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if (!ret)
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pass();
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else
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fail();
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return 0;
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}
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#else
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int main(int argc, char *argv[])
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{
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test_init(argc, argv);
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skip("Unsupported arch");
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return 0;
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}
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#endif
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