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[XEN v4 05/11] xen/Arm: GICv3: Fix GICR_{PENDBASER, PROPBASER} emulation on 32-bit host


  • To: <xen-devel@xxxxxxxxxxxxxxxxxxxx>
  • From: Ayan Kumar Halder <ayan.kumar.halder@xxxxxxx>
  • Date: Mon, 28 Nov 2022 15:56:43 +0000
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  • Cc: <sstabellini@xxxxxxxxxx>, <stefanos@xxxxxxxxxx>, <julien@xxxxxxx>, <Volodymyr_Babchuk@xxxxxxxx>, <bertrand.marquis@xxxxxxx>, <michal.orzel@xxxxxxx>, <jgrall@xxxxxxxxxx>, <burzalodowa@xxxxxxxxx>, "Ayan Kumar Halder" <ayan.kumar.halder@xxxxxxx>
  • Delivery-date: Mon, 28 Nov 2022 15:57:37 +0000
  • List-id: Xen developer discussion <xen-devel.lists.xenproject.org>

'unsigned long long' is defined as 64 bit across both AArch32 and AArch64.
So, use 'ULL' for 64 bit word instead of UL which is 32 bits for AArch32.
GICR_PENDBASER and GICR_PROPBASER both are 64 bit registers.

Signed-off-by: Ayan Kumar Halder <ayan.kumar.halder@xxxxxxx>
Reviewed-by: Michal Orzel <michal.orzel@xxxxxxx>
Acked-by: Julien Grall <jgrall@xxxxxxxxxx>
---

Changes from -
v1 - 1. Extract the bug fix for incorrect bit clearing (GICR_PENDBASER_PTZ)
into a separate patch fix.
https://patchwork.kernel.org/project/xen-devel/patch/20221027185555.46125-1-ayankuma@xxxxxxx/

v2 - No changes.

v3 - No changes.

 xen/arch/arm/include/asm/gic_v3_defs.h | 16 ++++++++--------
 1 file changed, 8 insertions(+), 8 deletions(-)

diff --git a/xen/arch/arm/include/asm/gic_v3_defs.h 
b/xen/arch/arm/include/asm/gic_v3_defs.h
index 728e28d5e5..48a1bc401e 100644
--- a/xen/arch/arm/include/asm/gic_v3_defs.h
+++ b/xen/arch/arm/include/asm/gic_v3_defs.h
@@ -134,15 +134,15 @@
 
 #define GICR_PROPBASER_OUTER_CACHEABILITY_SHIFT         56
 #define GICR_PROPBASER_OUTER_CACHEABILITY_MASK               \
-        (7UL << GICR_PROPBASER_OUTER_CACHEABILITY_SHIFT)
+        (7ULL << GICR_PROPBASER_OUTER_CACHEABILITY_SHIFT)
 #define GICR_PROPBASER_SHAREABILITY_SHIFT               10
 #define GICR_PROPBASER_SHAREABILITY_MASK                     \
-        (3UL << GICR_PROPBASER_SHAREABILITY_SHIFT)
+        (3ULL << GICR_PROPBASER_SHAREABILITY_SHIFT)
 #define GICR_PROPBASER_INNER_CACHEABILITY_SHIFT         7
 #define GICR_PROPBASER_INNER_CACHEABILITY_MASK               \
-        (7UL << GICR_PROPBASER_INNER_CACHEABILITY_SHIFT)
+        (7ULL << GICR_PROPBASER_INNER_CACHEABILITY_SHIFT)
 #define GICR_PROPBASER_RES0_MASK                             \
-        (GENMASK(63, 59) | GENMASK(55, 52) | GENMASK(6, 5))
+        (GENMASK_ULL(63, 59) | GENMASK_ULL(55, 52) | GENMASK_ULL(6, 5))
 
 #define GICR_PENDBASER_SHAREABILITY_SHIFT               10
 #define GICR_PENDBASER_INNER_CACHEABILITY_SHIFT         7
@@ -152,11 +152,11 @@
 #define GICR_PENDBASER_INNER_CACHEABILITY_MASK               \
        (7UL << GICR_PENDBASER_INNER_CACHEABILITY_SHIFT)
 #define GICR_PENDBASER_OUTER_CACHEABILITY_MASK               \
-        (7UL << GICR_PENDBASER_OUTER_CACHEABILITY_SHIFT)
-#define GICR_PENDBASER_PTZ                              BIT(62, UL)
+        (7ULL << GICR_PENDBASER_OUTER_CACHEABILITY_SHIFT)
+#define GICR_PENDBASER_PTZ                              BIT(62, ULL)
 #define GICR_PENDBASER_RES0_MASK                             \
-        (BIT(63, UL) | GENMASK(61, 59) | GENMASK(55, 52) |  \
-         GENMASK(15, 12) | GENMASK(6, 0))
+        (BIT(63, ULL) | GENMASK_ULL(61, 59) | GENMASK_ULL(55, 52) |  \
+         GENMASK_ULL(15, 12) | GENMASK_ULL(6, 0))
 
 #define DEFAULT_PMR_VALUE            0xff
 
-- 
2.17.1




 


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