diff options
Diffstat (limited to 'slof/fs/packages/disk-label.fs')
| -rw-r--r-- | slof/fs/packages/disk-label.fs | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/slof/fs/packages/disk-label.fs b/slof/fs/packages/disk-label.fs index 969eb00..bb64022 100644 --- a/slof/fs/packages/disk-label.fs +++ b/slof/fs/packages/disk-label.fs @@ -431,6 +431,27 @@ CREATE GPT-LINUX-PARTITION 10 allot block gpt>signature x@ GPT-SIGNATURE = ; +\ Measure the GPT partition table by collecting its LBA1 +\ and GPT Entries and then measuring them. +\ This function modifies 'block' and 'seek-pos' + +: measure-gpt-partition ( -- ) + s" /ibm,vtpm" find-node ?dup IF + get-gpt-partition 0= if drop EXIT THEN + + block block-size tpm-gpt-set-lba1 + + block gpt>num-part-entry l@-le + 1+ 1 ?DO + seek-pos 0 seek drop + block gpt-part-size read drop + block gpt-part-size tpm-gpt-add-entry + seek-pos gpt-part-size + to seek-pos + LOOP + s" measure-gpt" rot $call-static + THEN +; + : load-from-gpt-prep-partition ( addr -- size ) get-gpt-partition 0= IF false EXIT THEN block gpt>num-part-entry l@-le dup 0= IF false exit THEN @@ -465,6 +486,7 @@ CREATE GPT-LINUX-PARTITION 10 allot ; : try-gpt-dos-partition ( -- true|false ) + measure-gpt-partition get-gpt-partition 0= IF false EXIT THEN block gpt>num-part-entry l@-le dup 0= IF false EXIT THEN 1+ 1 ?DO |