linux-kernel - [PATCH v4 24/28] drm/xe/pf: Enable SR-IOV VF migration

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Message-ID: <20251105151027.540712-25-michal.winiarski@intel.com>
Date: Wed, 5 Nov 2025 16:10:22 +0100
From: Michał Winiarski <michal.winiarski@...el.com>
To: Alex Williamson <alex@...zbot.org>, Lucas De Marchi
	<lucas.demarchi@...el.com>, Thomas Hellström
	<thomas.hellstrom@...ux.intel.com>, Rodrigo Vivi <rodrigo.vivi@...el.com>,
	Jason Gunthorpe <jgg@...pe.ca>, Yishai Hadas <yishaih@...dia.com>, Kevin Tian
	<kevin.tian@...el.com>, Shameer Kolothum <skolothumtho@...dia.com>,
	<intel-xe@...ts.freedesktop.org>, <linux-kernel@...r.kernel.org>,
	<kvm@...r.kernel.org>, Matthew Brost <matthew.brost@...el.com>, "Michal
 Wajdeczko" <michal.wajdeczko@...el.com>
CC: <dri-devel@...ts.freedesktop.org>, Jani Nikula
	<jani.nikula@...ux.intel.com>, Joonas Lahtinen
	<joonas.lahtinen@...ux.intel.com>, Tvrtko Ursulin <tursulin@...ulin.net>,
	David Airlie <airlied@...il.com>, Simona Vetter <simona@...ll.ch>, "Lukasz
 Laguna" <lukasz.laguna@...el.com>, Christoph Hellwig <hch@...radead.org>,
	Michał Winiarski <michal.winiarski@...el.com>
Subject: [PATCH v4 24/28] drm/xe/pf: Enable SR-IOV VF migration

All of the necessary building blocks are now in place to support SR-IOV
VF migration.
Enable the feature without the need to pass feature enabling debug flags
for those platforms and rely on .has_memirq presence instead (like with
VF resource fixup).

Signed-off-by: Michał Winiarski <michal.winiarski@...el.com>
---
 drivers/gpu/drm/xe/xe_sriov_pf_migration.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/xe/xe_sriov_pf_migration.c b/drivers/gpu/drm/xe/xe_sriov_pf_migration.c
index 30bda27b0b2ab..cba7d4b8cf633 100644
--- a/drivers/gpu/drm/xe/xe_sriov_pf_migration.c
+++ b/drivers/gpu/drm/xe/xe_sriov_pf_migration.c
@@ -50,8 +50,10 @@ bool xe_sriov_pf_migration_supported(struct xe_device *xe)
 
 static bool pf_check_migration_support(struct xe_device *xe)
 {
-	/* XXX: for now this is for feature enabling only */
-	return IS_ENABLED(CONFIG_DRM_XE_DEBUG);
+	if (xe_device_has_memirq(xe))
+		return true;
+
+	return false;
 }
 
 static void pf_migration_cleanup(void *arg)
-- 
2.51.2