67 lines
1.6 KiB
Diff
67 lines
1.6 KiB
Diff
From 889c0894d358e48c02f8225426893094f20004e5 Mon Sep 17 00:00:00 2001
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From: Gary Lin <glin@suse.com>
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Date: Thu, 4 Oct 2018 10:32:07 +0800
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Subject: [PATCH] linux/getroot: Support NVDIMM device names
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There are two types of NVDIMM block devices in linux: fsdax and blk.
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For fsdax, the device name would be /dev/pmemXpY, /dev/pmemXsY,
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/dev/pmemX.YpZ, or /dev/pmemX.YsZ.
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For blk, the name would be /dev/ndblkX.YpZ or /dev/ndblkX.YsZ
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---
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grub-core/osdep/linux/getroot.c | 44 +++++++++++++++++++++++++++++++++
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1 file changed, 44 insertions(+)
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--- a/grub-core/osdep/linux/getroot.c
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+++ b/grub-core/osdep/linux/getroot.c
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@@ -971,6 +971,50 @@
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*pp = '\0';
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return path;
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}
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+
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+ /* If this is a NVDIMM device in fsdax mode */
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+ if (strncmp ("pmem", p, 4) == 0 && p[4] >= '0' && p[4] <= '9')
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+ {
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+ /* /dev/pmem[0-9]+(\.[0-9]+)?((p[0-9]+)?|s[0-9]*) */
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+ char *pp = strchr (p + 4, 'p');
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+ if (pp)
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+ {
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+ *is_part = 1;
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+ *pp = '\0';
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+ }
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+ else
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+ {
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+ pp = strchr (p + 4, 's');
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+ if (pp && pp[1] >= '0' && pp[1] <= '9')
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+ {
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+ *is_part = 1;
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+ pp[1] = '\0';
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+ }
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+ }
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+ return path;
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+ }
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+
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+ /* If this is a NVDIMM device in block mode */
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+ if (strncmp ("ndblk", p, 5) == 0 && p[5] >= '0' && p[5] <= '9')
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+ {
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+ /* /dev/ndblk[0-9]+\.[0-9]+((p[0-9]+)?|s[0-9]*) */
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+ char *pp = strchr (p + 5, 'p');
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+ if (pp)
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+ {
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+ *is_part = 1;
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+ *pp = '\0';
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+ }
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+ else
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+ {
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+ pp = strchr (p + 5, 's');
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+ if (pp && pp[1] >= '0' && pp[1] <= '9')
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+ {
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+ *is_part = 1;
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+ pp[1] = '\0';
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+ }
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+ }
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+ return path;
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+ }
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}
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return path;
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