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[v8,05/11] arm: processor.h: add definition for immediate value mask

Message ID 1507650771-16631-6-git-send-email-volodymyr_babchuk@epam.com (mailing list archive)
State New, archived
Headers show

Commit Message

Volodymyr Babchuk Oct. 10, 2017, 3:52 p.m. UTC 
This patch defines HSR_XXC_IMM_MASK. It can be used to extract
immediate value for trapped HVC32, HVC64, SMC64, SVC32, SVC64
instructions, as described in the ARM ARM
(ARM DDI 0487B.a pages D7-2270, D7-2272).

Signed-off-by: Volodymyr Babchuk <volodymyr_babchuk@epam.com>
Acked-by: Julien Grall <julien.grall@arm.com>
---
 xen/include/asm-arm/processor.h | 3 +++
 1 file changed, 3 insertions(+)
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Patch

diff --git a/xen/include/asm-arm/processor.h b/xen/include/asm-arm/processor.h
index cd92176..65eb107 100644
--- a/xen/include/asm-arm/processor.h
+++ b/xen/include/asm-arm/processor.h
@@ -673,6 +673,9 @@  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)