51 lines
1.6 KiB
Python
51 lines
1.6 KiB
Python
import os
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import infra.basetest
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class TestMsrTools(infra.basetest.BRTest):
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config = \
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"""
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BR2_x86_64=y
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BR2_x86_corei7=y
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BR2_TOOLCHAIN_EXTERNAL=y
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BR2_LINUX_KERNEL=y
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BR2_LINUX_KERNEL_CUSTOM_VERSION=y
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BR2_LINUX_KERNEL_CUSTOM_VERSION_VALUE="5.15.55"
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BR2_LINUX_KERNEL_USE_CUSTOM_CONFIG=y
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BR2_LINUX_KERNEL_CUSTOM_CONFIG_FILE="board/qemu/x86_64/linux.config"
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BR2_LINUX_KERNEL_CONFIG_FRAGMENT_FILES="{}"
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BR2_LINUX_KERNEL_NEEDS_HOST_LIBELF=y
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BR2_PACKAGE_MSR_TOOLS=y
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BR2_TARGET_ROOTFS_CPIO=y
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# BR2_TARGET_ROOTFS_TAR is not set
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""".format(
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infra.filepath("tests/package/test_msr_tools/linux.config"))
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def test_run(self):
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kernel = os.path.join(self.builddir, "images", "bzImage")
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cpio_file = os.path.join(self.builddir, "images", "rootfs.cpio")
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self.emulator.boot(
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arch="x86_64",
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kernel=kernel, kernel_cmdline=["console=ttyS0"],
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options=["-cpu", "Nehalem", "-m", "320", "-initrd", cpio_file]
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)
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self.emulator.login()
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# CPU ID.
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cmd = "cpuid"
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self.assertRunOk(cmd)
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# Write MSR.
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# We write to TSC_AUX.
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cmd = "wrmsr 0xc0000103 0x1234567812345678"
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self.assertRunOk(cmd)
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# Read MSR.
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# We read back the TSC_AUX and we verify that we read back the correct
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# value.
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cmd = "rdmsr 0xc0000103"
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output, exit_code = self.emulator.run(cmd)
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self.assertEqual(exit_code, 0)
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self.assertEqual(output[0], "1234567812345678")
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