Change the default CXL Fixed Memory Window restrictions from 0x2f to 0xe, dropping Device Coherent and Back-Invalidate.
host-only coherent combined with Back-Invalidate is undefined behavior. Device Coherent alongside host-only coherent is permitted by the spec (multiple restriction bits may be set) but advertises conflicting coherency modes; neither belongs in the host-only default. Signed-off-by: Davidlohr Bueso <[email protected]> --- hw/acpi/cxl.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/hw/acpi/cxl.c b/hw/acpi/cxl.c index f92f7fa3d558..5ce5e8e083ba 100644 --- a/hw/acpi/cxl.c +++ b/hw/acpi/cxl.c @@ -172,7 +172,7 @@ static void cedt_build_cfmws(CXLFixedWindow *fw, Aml *cedt) build_append_int_noprefix(table_data, fw->enc_int_gran, 4); /* Window Restrictions */ - build_append_int_noprefix(table_data, 0x2f, 2); + build_append_int_noprefix(table_data, 0xe, 2); /* QTG ID */ build_append_int_noprefix(table_data, 0, 2); -- 2.39.5
