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[RFC PATCH v5 07/10] xen: arm: smccc: add INVALID_PARAMETER error code


  • To: "xen-devel@xxxxxxxxxxxxxxxxxxxx" <xen-devel@xxxxxxxxxxxxxxxxxxxx>
  • From: Oleksii Moisieiev <Oleksii_Moisieiev@xxxxxxxx>
  • Date: Tue, 22 Jul 2025 11:41:40 +0000
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  • Cc: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>, Anthony PERARD <anthony.perard@xxxxxxxxxx>, Bertrand Marquis <bertrand.marquis@xxxxxxx>, Jan Beulich <jbeulich@xxxxxxxx>, Juergen Gross <jgross@xxxxxxxx>, Julien Grall <julien@xxxxxxx>, Michal Orzel <michal.orzel@xxxxxxx>, Oleksii Moisieiev <Oleksii_Moisieiev@xxxxxxxx>, Roger Pau Monné <roger.pau@xxxxxxxxxx>, Stefano Stabellini <sstabellini@xxxxxxxxxx>, Volodymyr Babchuk <Volodymyr_Babchuk@xxxxxxxx>, Grygorii Strashko <grygorii_strashko@xxxxxxxx>
  • Delivery-date: Tue, 22 Jul 2025 11:41:54 +0000
  • List-id: Xen developer discussion <xen-devel.lists.xenproject.org>
  • Thread-index: AQHb+v2XkapJpHUkb0u7p4MhQIJSwA==
  • Thread-topic: [RFC PATCH v5 07/10] xen: arm: smccc: add INVALID_PARAMETER error code

According to the "7.1 Return Codes" section of DEN0028 [1]
INVALID_PARAMETER code (-3) is returned when one of the call
parameters has a non-supported value.
Adding this error code to the common smccc header file.

[1]: https://documentation-service.arm.com/static/5f8edaeff86e16515cdbe4c6

Signed-off-by: Oleksii Moisieiev <oleksii_moisieiev@xxxxxxxx>
---



 xen/arch/arm/include/asm/smccc.h | 1 +
 1 file changed, 1 insertion(+)

diff --git a/xen/arch/arm/include/asm/smccc.h b/xen/arch/arm/include/asm/smccc.h
index a289c48b7f..dc6af94db1 100644
--- a/xen/arch/arm/include/asm/smccc.h
+++ b/xen/arch/arm/include/asm/smccc.h
@@ -381,6 +381,7 @@ void arm_smccc_1_2_smc(const struct arm_smccc_1_2_regs 
*args,
                        0x3FFF)
 
 /* SMCCC error codes */
+#define ARM_SMCCC_INVALID_PARAMETER     (-3)
 #define ARM_SMCCC_NOT_REQUIRED          (-2)
 #define ARM_SMCCC_ERR_UNKNOWN_FUNCTION  (-1)
 #define ARM_SMCCC_NOT_SUPPORTED         (-1)
-- 
2.34.1



 


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