From: Jonathan Cameron Date: Wed, 4 Feb 2026 17:09:32 +0000 (+0000) Subject: hw/cxl: Update CXL Fixed Memory Window ACPI description to include Back Invalidate... X-Git-Tag: v11.0.0-rc0~58^2~15 X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=e6742e71c24cf577a4677e9449269007c24ae4ab;p=thirdparty%2Fqemu.git hw/cxl: Update CXL Fixed Memory Window ACPI description to include Back Invalidate support. Defaults for these windows has always been to enable anything QEMU supports. With the addition of back invalidate support it is necessary to specify that host windows support this. CXL emulation is currently only suitable for software stack verification. The relaxation of the restrictions on this window to include BI have no affect on the OS until BI capable devices are added and until now these have not existed. As such no backwards compatibility impacts are expected from this change. Reviewed-by: Davidlohr Bueso Signed-off-by: Jonathan Cameron Reviewed-by: Michael S. Tsirkin Signed-off-by: Michael S. Tsirkin Message-Id: <20260204170936.43959-5-Jonathan.Cameron@huawei.com> --- diff --git a/hw/acpi/cxl.c b/hw/acpi/cxl.c index 75edb2c0a65..f92f7fa3d55 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, 0x0f, 2); + build_append_int_noprefix(table_data, 0x2f, 2); /* QTG ID */ build_append_int_noprefix(table_data, 0, 2);