Re: [Xen-devel] [PATCH XSA-59] VT-d: extend quirks to newer desktop chipsets

["Dugger, Donald D" <donald.d.dugger@xxxxxxxxx>]

Ack-by: Don Dugger <donald.d.dugger@xxxxxxxxx>

--
Don Dugger
"Censeo Toto nos in Kansa esse decisse." - D. Gale
Ph: 303/443-3786

-----Original Message-----
From: xen-devel-bounces@xxxxxxxxxxxxx [mailto:xen-devel-bounces@xxxxxxxxxxxxx] 
On Behalf Of Jan Beulich
Sent: Tuesday, June 9, 2015 3:06 AM
To: xen-devel
Cc: Zhang, Yang Z; Tian, Kevin; Dugger, Donald D
Subject: [Xen-devel] [PATCH XSA-59] VT-d: extend quirks to newer desktop 
chipsets

We're being told that while on the server side the issue we're trying to work 
around is fixed starting with IvyBridge (another round of double checking is 
going on before we're going to remove the one IvyBridge ID that we're currently 
applying the workaround for), on the desktop side even Skylake still requires 
the workaround. Hence we need to add a whole bunch of desktop IDs.

Signed-off-by: Jan Beulich <jbeulich@xxxxxxxx>

--- a/xen/drivers/passthrough/vtd/quirks.c
+++ b/xen/drivers/passthrough/vtd/quirks.c
@@ -503,9 +503,13 @@ void pci_vtd_quirk(const struct pci_dev 
     case 0x0040: case 0x0044: case 0x0048: /* Nehalem/Westmere */
     case 0x0100: case 0x0104: case 0x0108: /* Sandybridge */
     case 0x0150: case 0x0154: case 0x0158: /* Ivybridge */
-    case 0x0a04: /* Haswell ULT */
-    case 0x0c00: case 0x0c04: case 0x0c08: /* Haswell */
-    case 0x1600: case 0x1604: case 0x1608: /* Broadwell */
+    case 0x0a00: case 0x0a04: case 0x0a08: case 0x0a0f: /* Haswell ULT */
+    case 0x0c00: case 0x0c04: case 0x0c08: case 0x0c0f: /* Haswell */
+    case 0x0d00: case 0x0d04: case 0x0d08: case 0x0d0f: /* Haswell */
+    case 0x1600: case 0x1604: case 0x1608: case 0x160f: /* Broadwell */
+    case 0x1610: case 0x1614: case 0x1618: /* Broadwell */
+    case 0x1900: case 0x1904: case 0x1908: case 0x190c: case 0x190f: /* 
Skylake */
+    case 0x1910: case 0x1918: case 0x191f: /* Skylake */
         bar = pci_conf_read32(seg, bus, dev, func, 0x6c);
         bar = (bar << 32) | pci_conf_read32(seg, bus, dev, func, 0x68);
         pa = bar & 0x7ffffff000UL; /* bits 12...38 */




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