intelmetool: handle failures to mmap MEI memory
Fixes crashes when there is an error mapping memory. Error mapping physical memory 0x0000004275159040 [0x4000] ERRNO=1 Segmentation fault (core dumped) Change-Id: I5becc0c2870dd97297c4e8d1b101b95b31792ca7 Signed-off-by: Paul Wise <pabs3@bonedaddy.net> Reviewed-on: https://review.coreboot.org/19562 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Philipp Deppenwiese <zaolin.daisuki@gmail.com> Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
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@@ -581,6 +581,10 @@ uint32_t intel_mei_setup(struct pci_dev *dev)
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mei_base_address = dev->base_addr[0] & ~0xf;
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pagerounded = mei_base_address & ~0xfff;
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mei_mmap = map_physical(pagerounded, 0x2000) + mei_base_address - pagerounded;
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if (mei_mmap == NULL) {
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printf("Could not map ME setup memory\n");
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return 1;
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}
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/* Ensure Memory and Bus Master bits are set */
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reg32 = pci_read_long(dev, PCI_COMMAND);
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