From nobody Sun May 12 10:16:51 2024 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; 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 Return-Path: Received: from lists.xenproject.org (lists.xenproject.org [192.237.175.120]) by mx.zohomail.com with SMTPS id 1691492942478546.2959449756332; Tue, 8 Aug 2023 04:09:02 -0700 (PDT) Received: from list by lists.xenproject.org with outflank-mailman.579640.907725 (Exim 4.92) (envelope-from ) id 1qTKZx-0006Qp-2M; Tue, 08 Aug 2023 11:08:45 +0000 Received: by outflank-mailman (output) from mailman id 579640.907725; Tue, 08 Aug 2023 11:08:45 +0000 Received: from localhost ([127.0.0.1] helo=lists.xenproject.org) by lists.xenproject.org with esmtp (Exim 4.92) (envelope-from ) id 1qTKZw-0006Qg-UT; Tue, 08 Aug 2023 11:08:44 +0000 Received: by outflank-mailman (input) for mailman id 579640; Tue, 08 Aug 2023 11:08:43 +0000 Received: from se1-gles-flk1-in.inumbo.com ([94.247.172.50] helo=se1-gles-flk1.inumbo.com) by lists.xenproject.org with esmtp (Exim 4.92) (envelope-from ) id 1qTKZv-0005mu-00 for xen-devel@lists.xenproject.org; Tue, 08 Aug 2023 11:08:43 +0000 Received: from support.bugseng.com (mail.bugseng.com [162.55.131.47]) by se1-gles-flk1.inumbo.com (Halon) with ESMTPS id ee59a454-35db-11ee-8613-37d641c3527e; Tue, 08 Aug 2023 13:08:41 +0200 (CEST) Received: from nico.bugseng.com (unknown [147.123.100.131]) by support.bugseng.com (Postfix) with ESMTPSA id 111564EE0740; Tue, 8 Aug 2023 13:08:40 +0200 (CEST) X-Outflank-Mailman: Message body and most headers restored to incoming version X-BeenThere: xen-devel@lists.xenproject.org List-Id: Xen developer discussion List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: xen-devel-bounces@lists.xenproject.org Precedence: list Sender: "Xen-devel" X-Inumbo-ID: ee59a454-35db-11ee-8613-37d641c3527e From: Nicola Vetrini To: xen-devel@lists.xenproject.org Cc: sstabellini@kernel.org, michal.orzel@amd.com, xenia.ragiadakou@amd.com, ayan.kumar.halder@amd.com, consulting@bugseng.com, Nicola Vetrini , Jan Beulich , Andrew Cooper , =?UTF-8?q?Roger=20Pau=20Monn=C3=A9?= , Wei Liu , Paul Durrant Subject: [XEN PATCH v2 1/5] x86: address MISRA C:2012 Rule 5.3 Date: Tue, 8 Aug 2023 13:08:03 +0200 Message-Id: <3a9db416c6f8b2d5a549d49ff02238eb408cc905.1691492441.git.nicola.vetrini@bugseng.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: References: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-ZM-MESSAGEID: 1691492944511100001 Content-Type: text/plain; charset="utf-8" Address some occurrences of shadowing between the global variable 'e820' in 'xen/arch/x86/e820.c' and function parameter names (such as that of 'e820_add_range'). The parameter is removed in those functions whose call chain ultimately supplies the global variable as a parameter, which is already visible from their definitions in 'e820.c'. Signed-off-by: Nicola Vetrini --- Changes in v2: - Reworked the patch to remove the parameter e820 where possible and consequential changes to the involved functions. --- xen/arch/x86/e820.c | 36 ++++++++++----------- xen/arch/x86/guest/hyperv/hyperv.c | 4 +-- xen/arch/x86/guest/hypervisor.c | 2 +- xen/arch/x86/guest/xen/xen.c | 4 +-- xen/arch/x86/include/asm/e820.h | 3 +- xen/arch/x86/include/asm/guest/hypervisor.h | 2 +- xen/arch/x86/include/asm/pv/shim.h | 2 +- xen/arch/x86/pv/shim.c | 10 +++--- xen/arch/x86/setup.c | 8 ++--- xen/arch/x86/x86_64/mmconf-fam10h.c | 2 +- xen/drivers/passthrough/amd/iommu_acpi.c | 2 +- 11 files changed, 37 insertions(+), 38 deletions(-) diff --git a/xen/arch/x86/e820.c b/xen/arch/x86/e820.c index 4911e64b8c..875572b23e 100644 --- a/xen/arch/x86/e820.c +++ b/xen/arch/x86/e820.c @@ -543,27 +543,27 @@ static void __init machine_specific_memory_setup(stru= ct e820map *raw) clip_to_limit(top_of_ram, "MTRRs do not cover all of memory."); } =20 -/* This function relies on the passed in e820->map[] being sorted. */ -int __init e820_add_range( - struct e820map *e820, uint64_t s, uint64_t e, uint32_t type) +/* This function relies on the global e820->map[] being sorted. */ +int __init e820_add_range(uint64_t s, uint64_t e, uint32_t type) { unsigned int i; + struct e820entry *ei =3D e820.map; =20 - for ( i =3D 0; i < e820->nr_map; ++i ) + for ( i =3D 0; i < e820.nr_map; ++i ) { - uint64_t rs =3D e820->map[i].addr; - uint64_t re =3D rs + e820->map[i].size; + uint64_t rs =3D ei[i].addr; + uint64_t re =3D rs + ei[i].size; =20 - if ( rs =3D=3D e && e820->map[i].type =3D=3D type ) + if ( rs =3D=3D e && ei[i].type =3D=3D type ) { - e820->map[i].addr =3D s; + ei[i].addr =3D s; return 1; } =20 - if ( re =3D=3D s && e820->map[i].type =3D=3D type && - (i + 1 =3D=3D e820->nr_map || e820->map[i + 1].addr >=3D e) ) + if ( re =3D=3D s && ei[i].type =3D=3D type && + (i + 1 =3D=3D e820.nr_map || ei[i + 1].addr >=3D e) ) { - e820->map[i].size +=3D e - s; + ei[i].size +=3D e - s; return 1; } =20 @@ -574,20 +574,20 @@ int __init e820_add_range( return 0; } =20 - if ( e820->nr_map >=3D ARRAY_SIZE(e820->map) ) + if ( e820.nr_map >=3D ARRAY_SIZE(e820.map) ) { printk(XENLOG_WARNING "E820: overflow while adding region" " %"PRIx64"-%"PRIx64"\n", s, e); return 0; } =20 - memmove(e820->map + i + 1, e820->map + i, - (e820->nr_map - i) * sizeof(*e820->map)); + memmove(ei + i + 1, ei + i, + (e820.nr_map - i) * sizeof(*e820.map)); =20 - e820->nr_map++; - e820->map[i].addr =3D s; - e820->map[i].size =3D e - s; - e820->map[i].type =3D type; + e820.nr_map++; + ei[i].addr =3D s; + ei[i].size =3D e - s; + ei[i].type =3D type; =20 return 1; } diff --git a/xen/arch/x86/guest/hyperv/hyperv.c b/xen/arch/x86/guest/hyperv= /hyperv.c index aacc7a6167..912099564e 100644 --- a/xen/arch/x86/guest/hyperv/hyperv.c +++ b/xen/arch/x86/guest/hyperv/hyperv.c @@ -187,11 +187,11 @@ static int cf_check ap_setup(void) return setup_vp_assist(); } =20 -static void __init cf_check e820_fixup(struct e820map *e820) +static void __init cf_check e820_fixup(void) { uint64_t s =3D HV_HCALL_MFN << PAGE_SHIFT; =20 - if ( !e820_add_range(e820, s, s + PAGE_SIZE, E820_RESERVED) ) + if ( !e820_add_range(s, s + PAGE_SIZE, E820_RESERVED) ) panic("Unable to reserve Hyper-V hypercall range\n"); } =20 diff --git a/xen/arch/x86/guest/hypervisor.c b/xen/arch/x86/guest/hyperviso= r.c index b8549a131a..bf5be97bc3 100644 --- a/xen/arch/x86/guest/hypervisor.c +++ b/xen/arch/x86/guest/hypervisor.c @@ -63,7 +63,7 @@ void hypervisor_resume(void) void __init hypervisor_e820_fixup(struct e820map *e820) { if ( ops.e820_fixup ) - ops.e820_fixup(e820); + ops.e820_fixup(); } =20 int hypervisor_flush_tlb(const cpumask_t *mask, const void *va, diff --git a/xen/arch/x86/guest/xen/xen.c b/xen/arch/x86/guest/xen/xen.c index f93dfc89f7..139489c666 100644 --- a/xen/arch/x86/guest/xen/xen.c +++ b/xen/arch/x86/guest/xen/xen.c @@ -306,10 +306,10 @@ static void cf_check resume(void) pv_console_init(); } =20 -static void __init cf_check e820_fixup(struct e820map *e820) +static void __init cf_check e820_fixup() { if ( pv_shim ) - pv_shim_fixup_e820(e820); + pv_shim_fixup_e820(); } =20 static int cf_check flush_tlb( diff --git a/xen/arch/x86/include/asm/e820.h b/xen/arch/x86/include/asm/e82= 0.h index 213d5b5dd2..af90085d65 100644 --- a/xen/arch/x86/include/asm/e820.h +++ b/xen/arch/x86/include/asm/e820.h @@ -29,8 +29,7 @@ extern int reserve_e820_ram(struct e820map *e820, uint64_= t s, uint64_t e); extern int e820_change_range_type( struct e820map *e820, uint64_t s, uint64_t e, uint32_t orig_type, uint32_t new_type); -extern int e820_add_range( - struct e820map *, uint64_t s, uint64_t e, uint32_t type); +extern int e820_add_range(uint64_t s, uint64_t e, uint32_t type); extern unsigned long init_e820(const char *str, struct e820map *raw); extern void print_e820_memory_map(const struct e820entry *map, unsigned int entries); diff --git a/xen/arch/x86/include/asm/guest/hypervisor.h b/xen/arch/x86/inc= lude/asm/guest/hypervisor.h index 4cffea3866..9c8a893da3 100644 --- a/xen/arch/x86/include/asm/guest/hypervisor.h +++ b/xen/arch/x86/include/asm/guest/hypervisor.h @@ -22,7 +22,7 @@ struct hypervisor_ops { /* Resume from suspension */ void (*resume)(void); /* Fix up e820 map */ - void (*e820_fixup)(struct e820map *e820); + void (*e820_fixup)(void); /* L0 assisted TLB flush */ int (*flush_tlb)(const cpumask_t *mask, const void *va, unsigned int f= lags); }; diff --git a/xen/arch/x86/include/asm/pv/shim.h b/xen/arch/x86/include/asm/= pv/shim.h index 5625b90b72..7bae9ae372 100644 --- a/xen/arch/x86/include/asm/pv/shim.h +++ b/xen/arch/x86/include/asm/pv/shim.h @@ -85,7 +85,7 @@ static inline uint64_t pv_shim_mem(uint64_t avail) ASSERT_UNREACHABLE(); return 0; } -static inline void pv_shim_fixup_e820(struct e820map *e820) +static inline void pv_shim_fixup_e820(void) { ASSERT_UNREACHABLE(); } diff --git a/xen/arch/x86/pv/shim.c b/xen/arch/x86/pv/shim.c index 4044087119..a8883a1ebd 100644 --- a/xen/arch/x86/pv/shim.c +++ b/xen/arch/x86/pv/shim.c @@ -98,17 +98,17 @@ uint64_t pv_shim_mem(uint64_t avail) return shim_nrpages; } =20 -static void __init mark_pfn_as_ram(struct e820map *e820, uint64_t pfn) +static void __init mark_pfn_as_ram(uint64_t pfn) { - if ( !e820_add_range(e820, pfn << PAGE_SHIFT, + if ( !e820_add_range(pfn << PAGE_SHIFT, (pfn << PAGE_SHIFT) + PAGE_SIZE, E820_RAM) && - !e820_change_range_type(e820, pfn << PAGE_SHIFT, + !e820_change_range_type(&e820, pfn << PAGE_SHIFT, (pfn << PAGE_SHIFT) + PAGE_SIZE, E820_RESERVED, E820_RAM) ) panic("Unable to add/change memory type of pfn %#lx to RAM\n", pfn= ); } =20 -void __init pv_shim_fixup_e820(struct e820map *e820) +void __init pv_shim_fixup_e820(void) { uint64_t pfn =3D 0; unsigned int i =3D 0; @@ -120,7 +120,7 @@ void __init pv_shim_fixup_e820(struct e820map *e820) rc =3D xen_hypercall_hvm_get_param(p, &pfn); \ if ( rc ) \ panic("Unable to get " #p "\n"); \ - mark_pfn_as_ram(e820, pfn); \ + mark_pfn_as_ram(pfn); \ ASSERT(i < ARRAY_SIZE(reserved_pages)); \ reserved_pages[i++].mfn =3D pfn; \ }) diff --git a/xen/arch/x86/setup.c b/xen/arch/x86/setup.c index 80ae973d64..03f9a03180 100644 --- a/xen/arch/x86/setup.c +++ b/xen/arch/x86/setup.c @@ -686,7 +686,7 @@ static void __init parse_video_info(void) #endif } =20 -static void __init kexec_reserve_area(struct e820map *e820) +static void __init kexec_reserve_area(void) { #ifdef CONFIG_KEXEC unsigned long kdump_start =3D kexec_crash_area.start; @@ -700,7 +700,7 @@ static void __init kexec_reserve_area(struct e820map *e= 820) =20 is_reserved =3D true; =20 - if ( !reserve_e820_ram(e820, kdump_start, kdump_start + kdump_size) ) + if ( !reserve_e820_ram(&boot_e820, kdump_start, kdump_start + kdump_si= ze) ) { printk("Kdump: DISABLED (failed to reserve %luMB (%lukB) at %#lx)" "\n", kdump_size >> 20, kdump_size >> 10, kdump_start); @@ -1308,7 +1308,7 @@ void __init noreturn __start_xen(unsigned long mbi_p) if ( e820.map[i].type =3D=3D E820_RAM ) nr_pages +=3D e820.map[i].size >> PAGE_SHIFT; set_kexec_crash_area_size((u64)nr_pages << PAGE_SHIFT); - kexec_reserve_area(&boot_e820); + kexec_reserve_area(); =20 initial_images =3D mod; nr_initial_images =3D mbi->mods_count; @@ -1495,7 +1495,7 @@ void __init noreturn __start_xen(unsigned long mbi_p) reserve_e820_ram(&boot_e820, __pa(_stext), __pa(__2M_rwdata_end)); =20 /* Late kexec reservation (dynamic start address). */ - kexec_reserve_area(&boot_e820); + kexec_reserve_area(); =20 setup_max_pdx(raw_max_page); if ( highmem_start ) diff --git a/xen/arch/x86/x86_64/mmconf-fam10h.c b/xen/arch/x86/x86_64/mmco= nf-fam10h.c index a834ab3149..36b32eb769 100644 --- a/xen/arch/x86/x86_64/mmconf-fam10h.c +++ b/xen/arch/x86/x86_64/mmconf-fam10h.c @@ -135,7 +135,7 @@ static void __init get_fam10h_pci_mmconf_base(void) return; =20 out: - if (e820_add_range(&e820, start, start + SIZE, E820_RESERVED)) + if (e820_add_range(start, start + SIZE, E820_RESERVED)) fam10h_pci_mmconf_base =3D start; } =20 diff --git a/xen/drivers/passthrough/amd/iommu_acpi.c b/xen/drivers/passthr= ough/amd/iommu_acpi.c index 3b577c9b39..db993d6df2 100644 --- a/xen/drivers/passthrough/amd/iommu_acpi.c +++ b/xen/drivers/passthrough/amd/iommu_acpi.c @@ -418,7 +418,7 @@ static int __init parse_ivmd_block(const struct acpi_iv= rs_memory *ivmd_block) =20 if ( type =3D=3D RAM_TYPE_UNKNOWN ) { - if ( e820_add_range(&e820, addr, addr + PAGE_SIZE, + if ( e820_add_range(addr, addr + PAGE_SIZE, E820_RESERVED) ) continue; AMD_IOMMU_ERROR("IVMD: page at %lx couldn't be reserved\n", --=20 2.34.1 From nobody Sun May 12 10:16:51 2024 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; 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 Return-Path: Received: from lists.xenproject.org (lists.xenproject.org [192.237.175.120]) by mx.zohomail.com with SMTPS id 1691492945561477.34134377335226; 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Tue, 8 Aug 2023 13:08:40 +0200 (CEST) X-Outflank-Mailman: Message body and most headers restored to incoming version X-BeenThere: xen-devel@lists.xenproject.org List-Id: Xen developer discussion List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: xen-devel-bounces@lists.xenproject.org Precedence: list Sender: "Xen-devel" X-Inumbo-ID: eed0fce2-35db-11ee-8613-37d641c3527e From: Nicola Vetrini To: xen-devel@lists.xenproject.org Cc: sstabellini@kernel.org, michal.orzel@amd.com, xenia.ragiadakou@amd.com, ayan.kumar.halder@amd.com, consulting@bugseng.com, Nicola Vetrini , Andrew Cooper , George Dunlap , Jan Beulich , Julien Grall , Wei Liu Subject: [XEN PATCH v2 2/5] xen/delay: address MISRA C:2012 Rule 5.3. Date: Tue, 8 Aug 2023 13:08:04 +0200 Message-Id: <27631ba28fc6f47095fe0db3f8ee2cd87de616ed.1691492441.git.nicola.vetrini@bugseng.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: References: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-ZM-MESSAGEID: 1691492946490100005 Content-Type: text/plain; charset="utf-8" The variable 'msec' declared in the macro shadows the local variable in 'ehci_dbgp_bios_handoff', but to prevent any future clashes with other functions the macro is converted to a static inline function. No functional change. Signed-off-by: Nicola Vetrini Acked-by: Jan Beulich --- Changes in v2: - Switched to a static inline function, as suggested by Julien --- xen/include/xen/delay.h | 9 +++++++-- 1 file changed, 7 insertions(+), 2 deletions(-) diff --git a/xen/include/xen/delay.h b/xen/include/xen/delay.h index 9d70ef035f..6ecee851f6 100644 --- a/xen/include/xen/delay.h +++ b/xen/include/xen/delay.h @@ -4,7 +4,12 @@ /* Copyright (C) 1993 Linus Torvalds */ =20 #include -#define mdelay(n) (\ - {unsigned long msec=3D(n); while (msec--) udelay(1000);}) + +static inline void mdelay(unsigned long n) +{ + unsigned long msec=3Dn; + while ( msec-- ) + udelay(1000); +} =20 #endif /* defined(_LINUX_DELAY_H) */ --=20 2.34.1 From nobody Sun May 12 10:16:51 2024 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; 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 Return-Path: Received: from lists.xenproject.org (lists.xenproject.org [192.237.175.120]) by mx.zohomail.com with SMTPS id 1691492948992452.4344093492032; Tue, 8 Aug 2023 04:09:08 -0700 (PDT) Received: from list by lists.xenproject.org with outflank-mailman.579644.907755 (Exim 4.92) (envelope-from ) id 1qTKZz-00074z-C6; Tue, 08 Aug 2023 11:08:47 +0000 Received: by outflank-mailman (output) from mailman id 579644.907755; Tue, 08 Aug 2023 11:08:47 +0000 Received: from localhost ([127.0.0.1] helo=lists.xenproject.org) by lists.xenproject.org with esmtp (Exim 4.92) (envelope-from ) id 1qTKZy-00072a-SO; Tue, 08 Aug 2023 11:08:46 +0000 Received: by outflank-mailman (input) for mailman id 579644; Tue, 08 Aug 2023 11:08:45 +0000 Received: from se1-gles-flk1-in.inumbo.com ([94.247.172.50] helo=se1-gles-flk1.inumbo.com) by lists.xenproject.org with esmtp (Exim 4.92) (envelope-from ) id 1qTKZx-0005mu-0D for xen-devel@lists.xenproject.org; Tue, 08 Aug 2023 11:08:45 +0000 Received: from support.bugseng.com (mail.bugseng.com [162.55.131.47]) by se1-gles-flk1.inumbo.com (Halon) with ESMTPS id ef41c923-35db-11ee-8613-37d641c3527e; Tue, 08 Aug 2023 13:08:42 +0200 (CEST) Received: from nico.bugseng.com (unknown [147.123.100.131]) by support.bugseng.com (Postfix) with ESMTPSA id 91D064EE0742; Tue, 8 Aug 2023 13:08:41 +0200 (CEST) X-Outflank-Mailman: Message body and most headers restored to incoming version X-BeenThere: xen-devel@lists.xenproject.org List-Id: Xen developer discussion List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: xen-devel-bounces@lists.xenproject.org Precedence: list Sender: "Xen-devel" X-Inumbo-ID: ef41c923-35db-11ee-8613-37d641c3527e From: Nicola Vetrini To: xen-devel@lists.xenproject.org Cc: sstabellini@kernel.org, michal.orzel@amd.com, xenia.ragiadakou@amd.com, ayan.kumar.halder@amd.com, consulting@bugseng.com, Nicola Vetrini , Jan Beulich , Andrew Cooper , =?UTF-8?q?Roger=20Pau=20Monn=C3=A9?= , Wei Liu Subject: [XEN PATCH v2 3/5] x86/include: address MISRA C:2012 Rule 5.3. Date: Tue, 8 Aug 2023 13:08:05 +0200 Message-Id: <4b41f84c6cbce3466917d1091029cacb3c327d7b.1691492441.git.nicola.vetrini@bugseng.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: References: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-ZM-MESSAGEID: 1691492950378100001 Content-Type: text/plain; charset="utf-8" Variable 'mpc_default_type' in 'xen/arch/x86/include/asm/mpspec.h' has no uses and causes shadowing with function parameter names in 'mpparse.c'. Therefore, it is removed. No functional changes. Signed-off-by: Nicola Vetrini Reviewed-by: Jan Beulich --- Changes in v2: - Removed the variable. --- xen/arch/x86/include/asm/mpspec.h | 1 - 1 file changed, 1 deletion(-) diff --git a/xen/arch/x86/include/asm/mpspec.h b/xen/arch/x86/include/asm/m= pspec.h index 1246eece0b..45e474dfd1 100644 --- a/xen/arch/x86/include/asm/mpspec.h +++ b/xen/arch/x86/include/asm/mpspec.h @@ -15,7 +15,6 @@ extern void get_smp_config (void); extern unsigned char apic_version [MAX_APICS]; extern int mp_irq_entries; extern struct mpc_config_intsrc mp_irqs [MAX_IRQ_SOURCES]; -extern int mpc_default_type; extern unsigned long mp_lapic_addr; extern bool pic_mode; =20 --=20 2.34.1 From nobody Sun May 12 10:16:51 2024 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; 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 Return-Path: Received: from lists.xenproject.org (lists.xenproject.org [192.237.175.120]) by mx.zohomail.com with SMTPS id 1691492942772237.49468749238065; Tue, 8 Aug 2023 04:09:02 -0700 (PDT) Received: from list by lists.xenproject.org with outflank-mailman.579641.907730 (Exim 4.92) (envelope-from ) id 1qTKZx-0006UB-Fz; Tue, 08 Aug 2023 11:08:45 +0000 Received: by outflank-mailman (output) from mailman id 579641.907730; Tue, 08 Aug 2023 11:08:45 +0000 Received: from localhost ([127.0.0.1] helo=lists.xenproject.org) by lists.xenproject.org with esmtp (Exim 4.92) (envelope-from ) id 1qTKZx-0006Ru-6Z; Tue, 08 Aug 2023 11:08:45 +0000 Received: by outflank-mailman (input) for mailman id 579641; Tue, 08 Aug 2023 11:08:43 +0000 Received: from se1-gles-sth1-in.inumbo.com ([159.253.27.254] helo=se1-gles-sth1.inumbo.com) by lists.xenproject.org with esmtp (Exim 4.92) (envelope-from ) id 1qTKZv-00068O-To for xen-devel@lists.xenproject.org; Tue, 08 Aug 2023 11:08:43 +0000 Received: from support.bugseng.com (mail.bugseng.com [162.55.131.47]) by se1-gles-sth1.inumbo.com (Halon) with ESMTPS id efae8582-35db-11ee-b280-6b7b168915f2; Tue, 08 Aug 2023 13:08:43 +0200 (CEST) Received: from nico.bugseng.com (unknown [147.123.100.131]) by support.bugseng.com (Postfix) with ESMTPSA id 50E094EE0744; Tue, 8 Aug 2023 13:08:42 +0200 (CEST) X-Outflank-Mailman: Message body and most headers restored to incoming version X-BeenThere: xen-devel@lists.xenproject.org List-Id: Xen developer discussion List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: xen-devel-bounces@lists.xenproject.org Precedence: list Sender: "Xen-devel" X-Inumbo-ID: efae8582-35db-11ee-b280-6b7b168915f2 From: Nicola Vetrini To: xen-devel@lists.xenproject.org Cc: sstabellini@kernel.org, michal.orzel@amd.com, xenia.ragiadakou@amd.com, ayan.kumar.halder@amd.com, consulting@bugseng.com, Nicola Vetrini , Jan Beulich , Andrew Cooper , =?UTF-8?q?Roger=20Pau=20Monn=C3=A9?= , Wei Liu Subject: [XEN PATCH v2 4/5] x86/xstate: address MISRA C:2012 Rule 5.3 Date: Tue, 8 Aug 2023 13:08:06 +0200 Message-Id: <927d771a3c38b8a3c47913aea21cf8890fd4e6ef.1691492441.git.nicola.vetrini@bugseng.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: References: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-ZM-MESSAGEID: 1691492945609100003 Content-Type: text/plain; charset="utf-8" Rename the local variables s/xsave/xstate/ to avoid clashing with function 'xsave' defined in 'xen/arch/x86/include/asm/xstate.h'. No functional changes. Signed-off-by: Nicola Vetrini Acked-by: Jan Beulich --- Changes in v2: - s/xsave_area/xstate/, since that is the newest common name, also used in other parts of the modified file. --- xen/arch/x86/xstate.c | 30 +++++++++++++++--------------- 1 file changed, 15 insertions(+), 15 deletions(-) diff --git a/xen/arch/x86/xstate.c b/xen/arch/x86/xstate.c index 770747d88f..f442610fc5 100644 --- a/xen/arch/x86/xstate.c +++ b/xen/arch/x86/xstate.c @@ -174,10 +174,10 @@ static void setup_xstate_comp(uint16_t *comp_offsets, */ void expand_xsave_states(const struct vcpu *v, void *dest, unsigned int si= ze) { - const struct xsave_struct *xsave =3D v->arch.xsave_area; + const struct xsave_struct *xstate =3D v->arch.xsave_area; const void *src; uint16_t comp_offsets[sizeof(xfeature_mask)*8]; - u64 xstate_bv =3D xsave->xsave_hdr.xstate_bv; + u64 xstate_bv =3D xstate->xsave_hdr.xstate_bv; u64 valid; =20 /* Check there is state to serialise (i.e. at least an XSAVE_HDR) */ @@ -185,19 +185,19 @@ void expand_xsave_states(const struct vcpu *v, void *= dest, unsigned int size) /* Check there is the correct room to decompress into. */ BUG_ON(size !=3D xstate_ctxt_size(v->arch.xcr0_accum)); =20 - if ( !(xsave->xsave_hdr.xcomp_bv & XSTATE_COMPACTION_ENABLED) ) + if ( !(xstate->xsave_hdr.xcomp_bv & XSTATE_COMPACTION_ENABLED) ) { - memcpy(dest, xsave, size); + memcpy(dest, xstate, size); return; } =20 - ASSERT(xsave_area_compressed(xsave)); - setup_xstate_comp(comp_offsets, xsave->xsave_hdr.xcomp_bv); + ASSERT(xsave_area_compressed(xstate)); + setup_xstate_comp(comp_offsets, xstate->xsave_hdr.xcomp_bv); =20 /* * Copy legacy XSAVE area and XSAVE hdr area. */ - memcpy(dest, xsave, XSTATE_AREA_MIN_SIZE); + memcpy(dest, xstate, XSTATE_AREA_MIN_SIZE); memset(dest + XSTATE_AREA_MIN_SIZE, 0, size - XSTATE_AREA_MIN_SIZE); =20 ((struct xsave_struct *)dest)->xsave_hdr.xcomp_bv =3D 0; @@ -206,7 +206,7 @@ void expand_xsave_states(const struct vcpu *v, void *de= st, unsigned int size) * Copy each region from the possibly compacted offset to the * non-compacted offset. */ - src =3D xsave; + src =3D xstate; valid =3D xstate_bv & ~XSTATE_FP_SSE; while ( valid ) { @@ -239,7 +239,7 @@ void expand_xsave_states(const struct vcpu *v, void *de= st, unsigned int size) */ void compress_xsave_states(struct vcpu *v, const void *src, unsigned int s= ize) { - struct xsave_struct *xsave =3D v->arch.xsave_area; + struct xsave_struct *xstate =3D v->arch.xsave_area; void *dest; uint16_t comp_offsets[sizeof(xfeature_mask)*8]; u64 xstate_bv, valid; @@ -252,7 +252,7 @@ void compress_xsave_states(struct vcpu *v, const void *= src, unsigned int size) =20 if ( !(v->arch.xcr0_accum & XSTATE_XSAVES_ONLY) ) { - memcpy(xsave, src, size); + memcpy(xstate, src, size); return; } =20 @@ -260,19 +260,19 @@ void compress_xsave_states(struct vcpu *v, const void= *src, unsigned int size) * Copy legacy XSAVE area, to avoid complications with CPUID * leaves 0 and 1 in the loop below. */ - memcpy(xsave, src, FXSAVE_SIZE); + memcpy(xstate, src, FXSAVE_SIZE); =20 /* Set XSTATE_BV and XCOMP_BV. */ - xsave->xsave_hdr.xstate_bv =3D xstate_bv; - xsave->xsave_hdr.xcomp_bv =3D v->arch.xcr0_accum | XSTATE_COMPACTION_E= NABLED; + xstate->xsave_hdr.xstate_bv =3D xstate_bv; + xstate->xsave_hdr.xcomp_bv =3D v->arch.xcr0_accum | XSTATE_COMPACTION_= ENABLED; =20 - setup_xstate_comp(comp_offsets, xsave->xsave_hdr.xcomp_bv); + setup_xstate_comp(comp_offsets, xstate->xsave_hdr.xcomp_bv); =20 /* * Copy each region from the non-compacted offset to the * possibly compacted offset. */ - dest =3D xsave; + dest =3D xstate; valid =3D xstate_bv & ~XSTATE_FP_SSE; while ( valid ) { --=20 2.34.1 From nobody Sun May 12 10:16:51 2024 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; 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 Return-Path: Received: from lists.xenproject.org (lists.xenproject.org [192.237.175.120]) by mx.zohomail.com with SMTPS id 1691492944706351.4798751978715; Tue, 8 Aug 2023 04:09:04 -0700 (PDT) Received: from list by lists.xenproject.org with outflank-mailman.579643.907744 (Exim 4.92) (envelope-from ) id 1qTKZy-0006lY-Bx; Tue, 08 Aug 2023 11:08:46 +0000 Received: by outflank-mailman (output) from mailman id 579643.907744; Tue, 08 Aug 2023 11:08:46 +0000 Received: from localhost ([127.0.0.1] helo=lists.xenproject.org) by lists.xenproject.org with esmtp (Exim 4.92) (envelope-from ) id 1qTKZy-0006jn-2W; Tue, 08 Aug 2023 11:08:46 +0000 Received: by outflank-mailman (input) for mailman id 579643; Tue, 08 Aug 2023 11:08:44 +0000 Received: from se1-gles-sth1-in.inumbo.com ([159.253.27.254] helo=se1-gles-sth1.inumbo.com) by lists.xenproject.org with esmtp (Exim 4.92) (envelope-from ) id 1qTKZw-00068O-LO for xen-devel@lists.xenproject.org; Tue, 08 Aug 2023 11:08:44 +0000 Received: from support.bugseng.com (mail.bugseng.com [162.55.131.47]) by se1-gles-sth1.inumbo.com (Halon) with ESMTPS id f022ab89-35db-11ee-b280-6b7b168915f2; Tue, 08 Aug 2023 13:08:44 +0200 (CEST) Received: from nico.bugseng.com (unknown [147.123.100.131]) by support.bugseng.com (Postfix) with ESMTPSA id 1193B4EE0743; Tue, 8 Aug 2023 13:08:43 +0200 (CEST) X-Outflank-Mailman: Message body and most headers restored to incoming version X-BeenThere: xen-devel@lists.xenproject.org List-Id: Xen developer discussion List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: xen-devel-bounces@lists.xenproject.org Precedence: list Sender: "Xen-devel" X-Inumbo-ID: f022ab89-35db-11ee-b280-6b7b168915f2 From: Nicola Vetrini To: xen-devel@lists.xenproject.org Cc: sstabellini@kernel.org, michal.orzel@amd.com, xenia.ragiadakou@amd.com, ayan.kumar.halder@amd.com, consulting@bugseng.com, Nicola Vetrini , Jan Beulich , Andrew Cooper , =?UTF-8?q?Roger=20Pau=20Monn=C3=A9?= , Wei Liu Subject: [XEN PATCH v2 5/5] x86: refactor macros in 'xen-mca.h' Date: Tue, 8 Aug 2023 13:08:07 +0200 Message-Id: <8df1af6384606d8176525fbffb364ec814d48db1.1691492441.git.nicola.vetrini@bugseng.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: References: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-ZM-MESSAGEID: 1691493057914100001 Content-Type: text/plain; charset="utf-8" The macros defined 'xen/include/public/arch-x86/xen-mca.h' are revised to address the following concerns: - needless underscore prefixes for parameter names; - the variable 'i' in function 'mce_action' that is shadowed by the local variable in the macro. Therefore, the refactoring aims to resolve present shadowing issues, which violate MISRA C:2012 Rule 5.3, and lessen the probability of future ones with some renames. No functional change. Signed-off-by: Nicola Vetrini Reviewed-by: Jan Beulich Reviewed-by: Stefano Stabellini --- Changes in v2: - Added missing parentheses. - Clarified commit message. --- xen/include/public/arch-x86/xen-mca.h | 38 +++++++++++++-------------- 1 file changed, 19 insertions(+), 19 deletions(-) diff --git a/xen/include/public/arch-x86/xen-mca.h b/xen/include/public/arc= h-x86/xen-mca.h index b897536ec5..bb1b12f14f 100644 --- a/xen/include/public/arch-x86/xen-mca.h +++ b/xen/include/public/arch-x86/xen-mca.h @@ -280,39 +280,39 @@ DEFINE_XEN_GUEST_HANDLE(xen_mc_logical_cpu_t); /* Prototype: * uint32_t x86_mcinfo_nentries(struct mc_info *mi); */ -#define x86_mcinfo_nentries(_mi) \ - (_mi)->mi_nentries +#define x86_mcinfo_nentries(mi) \ + (mi)->mi_nentries /* Prototype: * struct mcinfo_common *x86_mcinfo_first(struct mc_info *mi); */ -#define x86_mcinfo_first(_mi) \ - ((struct mcinfo_common *)(_mi)->mi_data) +#define x86_mcinfo_first(mi) \ + ((struct mcinfo_common *)(mi)->mi_data) /* Prototype: * struct mcinfo_common *x86_mcinfo_next(struct mcinfo_common *mic); */ -#define x86_mcinfo_next(_mic) \ - ((struct mcinfo_common *)((uint8_t *)(_mic) + (_mic)->size)) +#define x86_mcinfo_next(mic) \ + ((struct mcinfo_common *)((uint8_t *)(mic) + (mic)->size)) =20 /* Prototype: - * void x86_mcinfo_lookup(void *ret, struct mc_info *mi, uint16_t type); + * void x86_mcinfo_lookup(void *ret, struct mc_info *mi, uint16_t mc_ty= pe); */ -#define x86_mcinfo_lookup(_ret, _mi, _type) \ +#define x86_mcinfo_lookup(ret, mi, mc_type) \ do { \ - uint32_t found, i; \ - struct mcinfo_common *_mic; \ + uint32_t found_, i_; \ + struct mcinfo_common *mic_; \ \ - found =3D 0; \ - (_ret) =3D NULL; \ - if (_mi =3D=3D NULL) break; \ - _mic =3D x86_mcinfo_first(_mi); \ - for (i =3D 0; i < x86_mcinfo_nentries(_mi); i++) { \ - if (_mic->type =3D=3D (_type)) { \ - found =3D 1; \ + found_ =3D 0; \ + (ret) =3D NULL; \ + if ((mi) =3D=3D NULL) break; \ + mic_ =3D x86_mcinfo_first(mi); \ + for (i_ =3D 0; i_ < x86_mcinfo_nentries(mi); i_++) { \ + if (mic_->type =3D=3D (mc_type)) { \ + found_ =3D 1; \ break; \ } \ - _mic =3D x86_mcinfo_next(_mic); \ + mic_ =3D x86_mcinfo_next(mic_); \ } \ - (_ret) =3D found ? _mic : NULL; \ + (ret) =3D found_ ? mic_ : NULL; \ } while (0) =20 =20 --=20 2.34.1