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Thu, 03 Sep 2026 04:43:19 -0700 (PDT) Message-ID: Date: Thu, 3 Sep 2026 13:43:18 +0200 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: [PATCH 1/4] x86/domain: address Misra rule 11.1 violation in reset_stack_and_call_ind() From: Jan Beulich To: "xen-devel@lists.xenproject.org" Cc: Nicola Vetrini , Andrew Cooper , Teddy Astie , =?UTF-8?Q?Roger_Pau_Monn=C3=A9?= References: <6d212d60-5c0b-4909-996d-5d6a4906b7e1@suse.com> Content-Language: en-US Autocrypt: addr=jbeulich@suse.com; keydata= xsDiBFk3nEQRBADAEaSw6zC/EJkiwGPXbWtPxl2xCdSoeepS07jW8UgcHNurfHvUzogEq5xk hu507c3BarVjyWCJOylMNR98Yd8VqD9UfmX0Hb8/BrA+Hl6/DB/eqGptrf4BSRwcZQM32aZK 7Pj2XbGWIUrZrd70x1eAP9QE3P79Y2oLrsCgbZJfEwCgvz9JjGmQqQkRiTVzlZVCJYcyGGsD /0tbFCzD2h20ahe8rC1gbb3K3qk+LpBtvjBu1RY9drYk0NymiGbJWZgab6t1jM7sk2vuf0Py O9Hf9XBmK0uE9IgMaiCpc32XV9oASz6UJebwkX+zF2jG5I1BfnO9g7KlotcA/v5ClMjgo6Gl MDY4HxoSRu3i1cqqSDtVlt+AOVBJBACrZcnHAUSuCXBPy0jOlBhxPqRWv6ND4c9PH1xjQ3NP nxJuMBS8rnNg22uyfAgmBKNLpLgAGVRMZGaGoJObGf72s6TeIqKJo/LtggAS9qAUiuKVnygo 3wjfkS9A3DRO+SpU7JqWdsveeIQyeyEJ/8PTowmSQLakF+3fote9ybzd880fSmFuIEJldWxp Y2ggPGpiZXVsaWNoQHN1c2UuY29tPsJgBBMRAgAgBQJZN5xEAhsDBgsJCAcDAgQVAggDBBYC AwECHgECF4AACgkQoDSui/t3IH4J+wCfQ5jHdEjCRHj23O/5ttg9r9OIruwAn3103WUITZee e7Sbg12UgcQ5lv7SzsFNBFk3nEQQCACCuTjCjFOUdi5Nm244F+78kLghRcin/awv+IrTcIWF hUpSs1Y91iQQ7KItirz5uwCPlwejSJDQJLIS+QtJHaXDXeV6NI0Uef1hP20+y8qydDiVkv6l IreXjTb7DvksRgJNvCkWtYnlS3mYvQ9NzS9PhyALWbXnH6sIJd2O9lKS1Mrfq+y0IXCP10eS FFGg+Av3IQeFatkJAyju0PPthyTqxSI4lZYuJVPknzgaeuJv/2NccrPvmeDg6Coe7ZIeQ8Yj t0ARxu2xytAkkLCel1Lz1WLmwLstV30g80nkgZf/wr+/BXJW/oIvRlonUkxv+IbBM3dX2OV8 AmRv1ySWPTP7AAMFB/9PQK/VtlNUJvg8GXj9ootzrteGfVZVVT4XBJkfwBcpC/XcPzldjv+3 HYudvpdNK3lLujXeA5fLOH+Z/G9WBc5pFVSMocI71I8bT8lIAzreg0WvkWg5V2WZsUMlnDL9 mpwIGFhlbM3gfDMs7MPMu8YQRFVdUvtSpaAs8OFfGQ0ia3LGZcjA6Ik2+xcqscEJzNH+qh8V m5jjp28yZgaqTaRbg3M/+MTbMpicpZuqF4rnB0AQD12/3BNWDR6bmh+EkYSMcEIpQmBM51qM EKYTQGybRCjpnKHGOxG0rfFY1085mBDZCH5Kx0cl0HVJuQKC+dV2ZY5AqjcKwAxpE75MLFkr wkkEGBECAAkFAlk3nEQCGwwACgkQoDSui/t3IH7nnwCfcJWUDUFKdCsBH/E5d+0ZnMQi+G0A nAuWpQkjM1ASeQwSHEeAWPgskBQL In-Reply-To: <6d212d60-5c0b-4909-996d-5d6a4906b7e1@suse.com> Content-Transfer-Encoding: quoted-printable X-purgate-ID: tlsNG-720697/1788435799-674BE2AC-3AB31209/0/0 X-purgate-type: clean X-purgate-size: 1364 X-ZohoMail-DKIM: pass (identity @suse.com) X-ZM-MESSAGEID: 1788435824317158500 Content-Type: text/plain; charset="utf-8" Eclair dislikes both sides of the comparison to differ in noreturn attributes, thus deeming this a violation of "Conversions shall not be performed between a pointer to a function and any other type". Since gcc doesn't permit use of "noreturn" types used in a typecast, resort to typeof(). No functional change intended. Signed-off-by: Jan Beulich Reviewed-by: Nicola Vetrini --- Really Eclair's diagnosis is misleading here, and not only because of the missing "noreturn" there, making both sides be identical: There are no implicit conversions performed on this kind of pointer operands of an equality expression. A diagnosis of "comparison of pointers to different types", along the lines of what compilers use, would be more to the point. --- a/xen/arch/x86/include/asm/current.h +++ b/xen/arch/x86/include/asm/current.h @@ -208,7 +208,7 @@ unsigned long get_stack_dump_bottom (uns /* The constraint may only specify non-call-clobbered registers. */ #define reset_stack_and_call_ind(fn) \ ({ \ - (void)((fn) =3D=3D (void (*)(void))NULL); = \ + (void)((fn) =3D=3D (typeof(dom_xen->arch.ctxt_switch->tail))NULL);= \ switch_stack_and_jump(fn, "INDIRECT_CALL %", "b"); \ }) From nobody Thu Sep 24 20:23:38 2026 Delivered-To: importer@patchew.org Received-SPF: pass (zohomail.com: domain of lists.xenproject.org designates 192.237.175.120 as permitted sender) client-ip=192.237.175.120; envelope-from=xen-devel-bounces@lists.xenproject.org; helo=lists.xenproject.org; Authentication-Results: mx.zohomail.com; dkim=pass; spf=pass (zohomail.com: domain of lists.xenproject.org designates 192.237.175.120 as permitted sender) smtp.mailfrom=xen-devel-bounces@lists.xenproject.org; dmarc=pass(p=quarantine dis=none) header.from=suse.com ARC-Seal: i=1; a=rsa-sha256; t=1788435842; cv=none; d=zohomail.com; s=zohoarc; b=jAMMdcoEDySaXah3fvlUbi9u61kH9cxsAL/jkIcPMELiDcvk0rBHH00qIf9c9FgB9uDkvgmNjaa1UjaBHINRmXnMLJxRKTxoTkwsde56DKTDGextA2SKTlVYbtzg+1niHmHwFXkcHU+2xJYDKkShpan1/2VRbrfwrMQL6ftHyJU= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zohomail.com; s=zohoarc; t=1788435842; h=Content-Type:Content-Transfer-Encoding:Cc:Cc:Date:Date:From:From:In-Reply-To:List-Subscribe:List-Post:List-Id:List-Help:List-Unsubscribe:MIME-Version:Message-ID:References:Sender:Subject:Subject:To:To:Message-Id:Reply-To; bh=0ZyhfUsdFRoR5FzsVA7Ej7gYdWCaH0EjObTUL4EJH3c=; b=IYMBYQ1Az9wQN74ALnfKnEdj2DBd3FDQoJOSw8BHXlQaofox+bc/rO3y0zDs5Ts/T1uPVHDMxFLukkh3TCn6XD+9twJPZdJiu2DMDRCedbUAixmCTw+q2EuIFkwg6GSAKcjwIi5yX5cAm/9ATS5ZAA7gzR8ko1ewDIKjlzweUjk= ARC-Authentication-Results: i=1; mx.zohomail.com; dkim=pass; spf=pass (zohomail.com: domain of lists.xenproject.org designates 192.237.175.120 as permitted sender) smtp.mailfrom=xen-devel-bounces@lists.xenproject.org; dmarc=pass header.from= (p=quarantine dis=none) Return-Path: Received: from lists.xenproject.org (lists.xenproject.org [192.237.175.120]) by mx.zohomail.com with SMTPS id 1788435842460335.2960312895733; Thu, 3 Sep 2026 04:44:02 -0700 (PDT) Received: from list by lists.xenproject.org with outflank-mailman.1406909.1640075 (Exim 4.92) (envelope-from ) id 1x25rB-0001ZN-CF; Thu, 03 Sep 2026 11:43:49 +0000 Received: by outflank-mailman (output) from mailman id 1406909.1640075; Thu, 03 Sep 2026 11:43:49 +0000 Received: from localhost ([127.0.0.1] helo=lists.xenproject.org) by lists.xenproject.org with esmtp (Exim 4.92) (envelope-from ) id 1x25rB-0001ZG-8c; Thu, 03 Sep 2026 11:43:49 +0000 Received: by outflank-mailman (input) for mailman id 1406909; Thu, 03 Sep 2026 11:43:47 +0000 Received: from mx.expurgate.net ([195.190.135.20]) by lists.xenproject.org with esmtp (Exim 4.92) (envelope-from ) id 1x25r9-0001Ye-JR for xen-devel@lists.xenproject.org; Thu, 03 Sep 2026 11:43:47 +0000 Received: from mx.expurgate.net (helo=localhost) by mx.expurgate.net with esmtp id 1x25r9-00EqCc-00 for xen-devel@lists.xenproject.org; Thu, 03 Sep 2026 13:43:47 +0200 Received: from [10.42.69.4] (helo=localhost) by localhost with ESMTP (eXpurgate MTA 0.9.1) (envelope-from ) id 6a995d56-bab6-0a2a0a5309dd-0a2a45049c9e-42 for ; Thu, 03 Sep 2026 13:43:46 +0200 Received: from [209.85.221.52] (helo=mail-wr1-f52.google.com) by tlsNG-ebf023.mxtls.expurgate.net with ESMTPS (eXpurgate 4.57.1) (envelope-from ) id 6a995d72-b57f-0a2a45040019-d155dd34b4e4-3 for ; Thu, 03 Sep 2026 13:43:46 +0200 Received: by mail-wr1-f52.google.com with SMTP id ffacd0b85a97d-48436251906so2351218f8f.0 for ; Thu, 03 Sep 2026 04:43:46 -0700 (PDT) Received: from [10.156.60.236] (ip-037-024-206-209.um08.pools.vodafone-ip.de. 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charset="utf-8" What is true for unsigned long is also true for plain/signed long, thus also taking care of two instances of __x86_return_thunk() being cast to long. Signed-off-by: Jan Beulich Reviewed-by: Nicola Vetrini --- a/automation/eclair_analysis/ECLAIR/deviations.ecl +++ b/automation/eclair_analysis/ECLAIR/deviations.ecl @@ -368,17 +368,17 @@ constant expressions are required.\"" # Series 11 # =20 --doc_begin=3D"The conversion from a function pointer to unsigned long or (= void *) does not lose any information, provided that the target type has en= ough bits to store it." +-doc_begin=3D"The conversion from a function pointer to [unsigned] long or= (void *) does not lose any information, provided that the target type has = enough bits to store it." -config=3DMC3A2.R11.1,casts+=3D{safe, "from(type(canonical(__function_pointer_types))) - &&to(type(canonical(builtin(unsigned long)||pointer(builtin(void))))) + &&to(type(canonical(builtin(long)||builtin(unsigned long)||pointer(buil= tin(void))))) &&relation(definitely_preserves_value)" } -doc_end =20 --doc_begin=3D"Conversion from unsigned long or (void *) to a function poin= ter can restore full information, provided that the source type has enough = bits to restore it." +-doc_begin=3D"Conversion from [unsigned] long or (void *) to a function po= inter can restore full information, provided that the source type has enoug= h bits to restore it." -config=3DMC3A2.R11.1,casts+=3D{safe, - "from(type(canonical(builtin(unsigned long)||pointer(builtin(void))))) + "from(type(canonical(builtin(long)||builtin(unsigned long)||pointer(buil= tin(void))))) &&to(type(canonical(__function_pointer_types))) &&relation(definitely_preserves_value)" } --- a/docs/misra/rules.rst +++ b/docs/misra/rules.rst @@ -432,8 +432,8 @@ maintainers if you want to suggest a cha - All conversions to integer types are permitted if the destination type has enough bits to hold the entire value. Conversions to bool and void* are permitted. Conversions from 'void noreturn (*)(...)' - to 'void (*)(...)' are permitted. Conversions from unsigned long or - '(void *)' to a function pointer are permitted. + to 'void (*)(...)' are permitted. Conversions from [unsigned] long + or '(void *)' to a function pointer are permitted. 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Thu, 03 Sep 2026 04:44:07 -0700 (PDT) Message-ID: <4cca58b6-b555-4064-aa26-5204dc4b99cc@suse.com> Date: Thu, 3 Sep 2026 13:44:06 +0200 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: [PATCH 3/4] Eclair: relax "noreturn" function-pointer conversion deviation From: Jan Beulich To: "xen-devel@lists.xenproject.org" Cc: Nicola Vetrini , Andrew Cooper , Julien Grall , Stefano Stabellini , Anthony PERARD , Michal Orzel , =?UTF-8?Q?Roger_Pau_Monn=C3=A9?= References: <6d212d60-5c0b-4909-996d-5d6a4906b7e1@suse.com> Content-Language: en-US Autocrypt: addr=jbeulich@suse.com; keydata= xsDiBFk3nEQRBADAEaSw6zC/EJkiwGPXbWtPxl2xCdSoeepS07jW8UgcHNurfHvUzogEq5xk hu507c3BarVjyWCJOylMNR98Yd8VqD9UfmX0Hb8/BrA+Hl6/DB/eqGptrf4BSRwcZQM32aZK 7Pj2XbGWIUrZrd70x1eAP9QE3P79Y2oLrsCgbZJfEwCgvz9JjGmQqQkRiTVzlZVCJYcyGGsD /0tbFCzD2h20ahe8rC1gbb3K3qk+LpBtvjBu1RY9drYk0NymiGbJWZgab6t1jM7sk2vuf0Py O9Hf9XBmK0uE9IgMaiCpc32XV9oASz6UJebwkX+zF2jG5I1BfnO9g7KlotcA/v5ClMjgo6Gl MDY4HxoSRu3i1cqqSDtVlt+AOVBJBACrZcnHAUSuCXBPy0jOlBhxPqRWv6ND4c9PH1xjQ3NP nxJuMBS8rnNg22uyfAgmBKNLpLgAGVRMZGaGoJObGf72s6TeIqKJo/LtggAS9qAUiuKVnygo 3wjfkS9A3DRO+SpU7JqWdsveeIQyeyEJ/8PTowmSQLakF+3fote9ybzd880fSmFuIEJldWxp Y2ggPGpiZXVsaWNoQHN1c2UuY29tPsJgBBMRAgAgBQJZN5xEAhsDBgsJCAcDAgQVAggDBBYC AwECHgECF4AACgkQoDSui/t3IH4J+wCfQ5jHdEjCRHj23O/5ttg9r9OIruwAn3103WUITZee e7Sbg12UgcQ5lv7SzsFNBFk3nEQQCACCuTjCjFOUdi5Nm244F+78kLghRcin/awv+IrTcIWF hUpSs1Y91iQQ7KItirz5uwCPlwejSJDQJLIS+QtJHaXDXeV6NI0Uef1hP20+y8qydDiVkv6l IreXjTb7DvksRgJNvCkWtYnlS3mYvQ9NzS9PhyALWbXnH6sIJd2O9lKS1Mrfq+y0IXCP10eS FFGg+Av3IQeFatkJAyju0PPthyTqxSI4lZYuJVPknzgaeuJv/2NccrPvmeDg6Coe7ZIeQ8Yj t0ARxu2xytAkkLCel1Lz1WLmwLstV30g80nkgZf/wr+/BXJW/oIvRlonUkxv+IbBM3dX2OV8 AmRv1ySWPTP7AAMFB/9PQK/VtlNUJvg8GXj9ootzrteGfVZVVT4XBJkfwBcpC/XcPzldjv+3 HYudvpdNK3lLujXeA5fLOH+Z/G9WBc5pFVSMocI71I8bT8lIAzreg0WvkWg5V2WZsUMlnDL9 mpwIGFhlbM3gfDMs7MPMu8YQRFVdUvtSpaAs8OFfGQ0ia3LGZcjA6Ik2+xcqscEJzNH+qh8V m5jjp28yZgaqTaRbg3M/+MTbMpicpZuqF4rnB0AQD12/3BNWDR6bmh+EkYSMcEIpQmBM51qM EKYTQGybRCjpnKHGOxG0rfFY1085mBDZCH5Kx0cl0HVJuQKC+dV2ZY5AqjcKwAxpE75MLFkr wkkEGBECAAkFAlk3nEQCGwwACgkQoDSui/t3IH7nnwCfcJWUDUFKdCsBH/E5d+0ZnMQi+G0A nAuWpQkjM1ASeQwSHEeAWPgskBQL In-Reply-To: <6d212d60-5c0b-4909-996d-5d6a4906b7e1@suse.com> Content-Transfer-Encoding: quoted-printable X-purgate-ID: tlsNG-720697/1788435848-F34BE2AC-0915C079/0/0 X-purgate-type: clean X-purgate-size: 1720 X-ZohoMail-DKIM: pass (identity @suse.com) X-ZM-MESSAGEID: 1788435872340158500 Content-Type: text/plain; charset="utf-8" Like misra/rules.rst says, function arguments other than "void *" are okay as well. Signed-off-by: Jan Beulich --- I can't explain why this covers the violation in mce.c:mce_callbacks'es initializer, but not the one in mce.c:default_handler's. As a result of 6852334f8416 ("Arm/GIC: add noreturn in a few more places"), vgic_v2_lpi_to_pending() and vgic_v2_lpi_get_priority() (both returning non-void) would also need covering. (As said in a remark there, non-void together with noreturn is somewhat odd.) Really before and after this change there's no checking that parameter and return types actually match. I have no clue how one would express such checks. --- a/automation/eclair_analysis/ECLAIR/deviations.ecl +++ b/automation/eclair_analysis/ECLAIR/deviations.ecl @@ -391,11 +391,11 @@ constant expressions are required.\"" } -doc_end =20 --doc_begin=3D"The conversion from 'void noreturn (*)(void *)' to 'void (*)= (void *)' is safe +-doc_begin=3D"The conversion from 'void noreturn (*)(...)' to 'void (*)(..= .)' is safe because the semantics of the 'noreturn' attribute do not alter the calling= convention or behavior of the resulting code." -config=3DMC3A2.R11.1,casts+=3D{safe, - "kind(bitcast)&&to(type(pointer(inner(return(builtin(void))&&all_param(1= , pointer(builtin(void)))))))&&from(expr(skip(!syntactic(), - ref(property(noreturn)))))"}=20 + "kind(bitcast)&&to(type(pointer(inner(return(builtin(void))))))&&from(ex= pr(skip(!syntactic(),ref(property(noreturn)))))" +} -doc_end =20 -doc_begin=3D"The conversion from a pointer to an incomplete type to unsig= ned long does not lose any information, provided that the target type has e= nough bits to store it." 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Thu, 03 Sep 2026 04:44:42 -0700 (PDT) Message-ID: Date: Thu, 3 Sep 2026 13:44:41 +0200 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: [PATCH 4/4] x86/kexec: address Misra rule 11.1 violation in machine_kexec_load() From: Jan Beulich To: "xen-devel@lists.xenproject.org" Cc: Nicola Vetrini , Andrew Cooper References: <6d212d60-5c0b-4909-996d-5d6a4906b7e1@suse.com> Content-Language: en-US Autocrypt: addr=jbeulich@suse.com; keydata= xsDiBFk3nEQRBADAEaSw6zC/EJkiwGPXbWtPxl2xCdSoeepS07jW8UgcHNurfHvUzogEq5xk hu507c3BarVjyWCJOylMNR98Yd8VqD9UfmX0Hb8/BrA+Hl6/DB/eqGptrf4BSRwcZQM32aZK 7Pj2XbGWIUrZrd70x1eAP9QE3P79Y2oLrsCgbZJfEwCgvz9JjGmQqQkRiTVzlZVCJYcyGGsD /0tbFCzD2h20ahe8rC1gbb3K3qk+LpBtvjBu1RY9drYk0NymiGbJWZgab6t1jM7sk2vuf0Py O9Hf9XBmK0uE9IgMaiCpc32XV9oASz6UJebwkX+zF2jG5I1BfnO9g7KlotcA/v5ClMjgo6Gl MDY4HxoSRu3i1cqqSDtVlt+AOVBJBACrZcnHAUSuCXBPy0jOlBhxPqRWv6ND4c9PH1xjQ3NP nxJuMBS8rnNg22uyfAgmBKNLpLgAGVRMZGaGoJObGf72s6TeIqKJo/LtggAS9qAUiuKVnygo 3wjfkS9A3DRO+SpU7JqWdsveeIQyeyEJ/8PTowmSQLakF+3fote9ybzd880fSmFuIEJldWxp Y2ggPGpiZXVsaWNoQHN1c2UuY29tPsJgBBMRAgAgBQJZN5xEAhsDBgsJCAcDAgQVAggDBBYC AwECHgECF4AACgkQoDSui/t3IH4J+wCfQ5jHdEjCRHj23O/5ttg9r9OIruwAn3103WUITZee e7Sbg12UgcQ5lv7SzsFNBFk3nEQQCACCuTjCjFOUdi5Nm244F+78kLghRcin/awv+IrTcIWF hUpSs1Y91iQQ7KItirz5uwCPlwejSJDQJLIS+QtJHaXDXeV6NI0Uef1hP20+y8qydDiVkv6l IreXjTb7DvksRgJNvCkWtYnlS3mYvQ9NzS9PhyALWbXnH6sIJd2O9lKS1Mrfq+y0IXCP10eS FFGg+Av3IQeFatkJAyju0PPthyTqxSI4lZYuJVPknzgaeuJv/2NccrPvmeDg6Coe7ZIeQ8Yj t0ARxu2xytAkkLCel1Lz1WLmwLstV30g80nkgZf/wr+/BXJW/oIvRlonUkxv+IbBM3dX2OV8 AmRv1ySWPTP7AAMFB/9PQK/VtlNUJvg8GXj9ootzrteGfVZVVT4XBJkfwBcpC/XcPzldjv+3 HYudvpdNK3lLujXeA5fLOH+Z/G9WBc5pFVSMocI71I8bT8lIAzreg0WvkWg5V2WZsUMlnDL9 mpwIGFhlbM3gfDMs7MPMu8YQRFVdUvtSpaAs8OFfGQ0ia3LGZcjA6Ik2+xcqscEJzNH+qh8V m5jjp28yZgaqTaRbg3M/+MTbMpicpZuqF4rnB0AQD12/3BNWDR6bmh+EkYSMcEIpQmBM51qM EKYTQGybRCjpnKHGOxG0rfFY1085mBDZCH5Kx0cl0HVJuQKC+dV2ZY5AqjcKwAxpE75MLFkr wkkEGBECAAkFAlk3nEQCGwwACgkQoDSui/t3IH7nnwCfcJWUDUFKdCsBH/E5d+0ZnMQi+G0A nAuWpQkjM1ASeQwSHEeAWPgskBQL In-Reply-To: <6d212d60-5c0b-4909-996d-5d6a4906b7e1@suse.com> Content-Transfer-Encoding: quoted-printable X-purgate-ID: tlsNG-42698a/1788435883-18CCF9EA-02260BBC/0/0 X-purgate-type: clean X-purgate-size: 698 X-ZohoMail-DKIM: pass (identity @suse.com) X-ZM-MESSAGEID: 1788435898469158500 Content-Type: text/plain; charset="utf-8" Misra rule 11.1 demands no conversion to different types at all. We deviate conversions to long, unsigned long, and void *, though - leverage that deviation here. No functional change intended. Signed-off-by: Jan Beulich Reviewed-by: Nicola Vetrini --- a/xen/arch/x86/machine_kexec.c +++ b/xen/arch/x86/machine_kexec.c @@ -121,7 +121,8 @@ int machine_kexec_load(struct kexec_imag } =20 code_page =3D __map_domain_page(image->control_code_page); - memcpy(code_page, kexec_reloc, kexec_reloc_end - (char *)kexec_reloc); + memcpy(code_page, kexec_reloc, + kexec_reloc_end - (const char *)(unsigned long)kexec_reloc); unmap_domain_page(code_page); =20 /*