diff options
| author | Jonathan Zhang <jonzhang@fb.com> | 2020-10-14 15:07:51 -0700 |
|---|---|---|
| committer | Marc Jones <marc@marcjonesconsulting.com> | 2020-10-20 20:38:59 +0000 |
| commit | 320ad9351bb78c09ffd15fccd1ecc3089f068ab6 (patch) | |
| tree | ac80b6a9ab18887353fbad107d690f8b3f09e472 /Documentation/hypertransport.svg | |
| parent | b4b73d49958184c833844a3a6f6a3777dd469ceb (diff) | |
cpu/x86/mtrr: add support for address space higher than 16TiB
On DeltaLake server, there are following entry in MTRR address space:
0x0000201000000000 - 0x0000201000400000 size 0x00400000 type 0
In this case, the base address (with 4k granularity) cannot be held in
uint32_t. This results incorrect MTRR register setup. As the consequence
UEFI forum FWTS reports following critical error:
Memory range 0x100000000 to 0x183fffffff (System RAM) has incorrect attribute Uncached.
Change appropriate variables' data type from uint32_t to uint64_t.
Add fls64() to find least significant bit set in a 64-bit word.
Add fms64() to find most significant bit set in a 64-bit word.
Signed-off-by: Jonathan Zhang <jonzhang@fb.com>
Signed-off-by: Marc Jones <marcjones@sysproconsulting.com>
Change-Id: I41bc5befcc1374c838c91b9f7c5279ea76dd67c7
Reviewed-on: https://review.coreboot.org/c/coreboot/+/46435
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Diffstat (limited to 'Documentation/hypertransport.svg')
0 files changed, 0 insertions, 0 deletions