[Xen-devel] [PATCH v4 04/11] arm: processor.h: add definition for immediate value mask

[Volodymyr Babchuk <volodymyr_babchuk@xxxxxxxx>]

This patch adds definition HSR_XXC_IMM_MASK. It can be used to extract
immediate value for trapped HVC32, HVC64, SMC64, SVC32, SVC64 instructions,
as described at ARM ARM (ARM DDI 0487B.a pages D7-2270, D7-2272).

Signed-off-by: Volodymyr Babchuk <volodymyr_babchuk@xxxxxxxx>
---
 xen/include/asm-arm/processor.h | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/xen/include/asm-arm/processor.h b/xen/include/asm-arm/processor.h
index 51ce802..89752a7 100644
--- a/xen/include/asm-arm/processor.h
+++ b/xen/include/asm-arm/processor.h
@@ -580,6 +580,9 @@ union hsr {
                               HSR_SYSREG_CRN_MASK|HSR_SYSREG_CRM_MASK|\
                               HSR_SYSREG_OP2_MASK)
 
+/* HSR.EC == HSR_{HVC32, HVC64, SMC64, SVC32, SVC64} */
+#define HSR_XXC_IMM_MASK     (0xffff)
+
 /* Physical Address Register */
 #define PAR_F           (_AC(1,U)<<0)
 
-- 
2.7.4


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