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helo=lists.xenproject.org; Received-SPF: Pass (protection.outlook.com: domain of amd.com designates 165.204.84.17 as permitted sender) receiver=protection.outlook.com; client-ip=165.204.84.17; helo=SATLEXMB03.amd.com; pr=C From: Jason Andryuk To: CC: Jason Andryuk , Jan Beulich , Andrew Cooper , =?UTF-8?q?Roger=20Pau=20Monn=C3=A9?= , Wei Liu Subject: [PATCH v3 1/3] Revert "xen/x86: bzImage parse kernel_alignment" Date: Tue, 19 Mar 2024 16:58:47 -0400 Message-ID: <20240319205849.115884-2-jason.andryuk@amd.com> X-Mailer: git-send-email 2.44.0 In-Reply-To: <20240319205849.115884-1-jason.andryuk@amd.com> References: <20240319205849.115884-1-jason.andryuk@amd.com> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Received-SPF: None (SATLEXMB03.amd.com: jason.andryuk@amd.com does not designate permitted sender hosts) X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: DS2PEPF0000343F:EE_|PH7PR12MB6720:EE_ X-MS-Office365-Filtering-Correlation-Id: e1b8378e-132a-4a54-f0fd-08dc4857669a X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0; 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X-OriginatorOrg: amd.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 19 Mar 2024 20:58:59.9771 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: e1b8378e-132a-4a54-f0fd-08dc4857669a X-MS-Exchange-CrossTenant-Id: 3dd8961f-e488-4e60-8e11-a82d994e183d X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=3dd8961f-e488-4e60-8e11-a82d994e183d;Ip=[165.204.84.17];Helo=[SATLEXMB03.amd.com] X-MS-Exchange-CrossTenant-AuthSource: DS2PEPF0000343F.namprd02.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: PH7PR12MB6720 X-ZohoMail-DKIM: pass (identity @amd.com) X-ZM-MESSAGEID: 1710881960666100001 Content-Type: text/plain; charset="utf-8" A new ELF note will specify the alignment for a relocatable PVH kernel. ELF notes are suitable for vmlinux and other ELF files, so this Linux-specific bzImage parsing in unnecessary. This reverts commit c44cac229067faeec8f49247d1cf281723ac2d40. Signed-off-by: Jason Andryuk --- xen/arch/x86/bzimage.c | 4 +--- xen/arch/x86/hvm/dom0_build.c | 4 +--- xen/arch/x86/include/asm/bzimage.h | 2 +- xen/arch/x86/pv/dom0_build.c | 2 +- 4 files changed, 4 insertions(+), 8 deletions(-) diff --git a/xen/arch/x86/bzimage.c b/xen/arch/x86/bzimage.c index 0f4cfc49f7..ac4fd428be 100644 --- a/xen/arch/x86/bzimage.c +++ b/xen/arch/x86/bzimage.c @@ -105,7 +105,7 @@ unsigned long __init bzimage_headroom(void *image_start, } =20 int __init bzimage_parse(void *image_base, void **image_start, - unsigned long *image_len, unsigned int *align) + unsigned long *image_len) { struct setup_header *hdr =3D (struct setup_header *)(*image_start); int err =3D bzimage_check(hdr, *image_len); @@ -118,8 +118,6 @@ int __init bzimage_parse(void *image_base, void **image= _start, { *image_start +=3D (hdr->setup_sects + 1) * 512 + hdr->payload_offs= et; *image_len =3D hdr->payload_length; - if ( align ) - *align =3D hdr->kernel_alignment; } =20 if ( elf_is_elfbinary(*image_start, *image_len) ) diff --git a/xen/arch/x86/hvm/dom0_build.c b/xen/arch/x86/hvm/dom0_build.c index bbae8a5645..0ceda4140b 100644 --- a/xen/arch/x86/hvm/dom0_build.c +++ b/xen/arch/x86/hvm/dom0_build.c @@ -548,14 +548,12 @@ static int __init pvh_load_kernel(struct domain *d, c= onst module_t *image, struct elf_binary elf; struct elf_dom_parms parms; paddr_t last_addr; - unsigned int align =3D 0; struct hvm_start_info start_info =3D { 0 }; struct hvm_modlist_entry mod =3D { 0 }; struct vcpu *v =3D d->vcpu[0]; int rc; =20 - rc =3D bzimage_parse(image_base, &image_start, &image_len, &align); - if ( rc !=3D 0 ) + if ( (rc =3D bzimage_parse(image_base, &image_start, &image_len)) !=3D= 0 ) { printk("Error trying to detect bz compressed kernel\n"); return rc; diff --git a/xen/arch/x86/include/asm/bzimage.h b/xen/arch/x86/include/asm/= bzimage.h index 2e04f5cc7b..7ed69d3910 100644 --- a/xen/arch/x86/include/asm/bzimage.h +++ b/xen/arch/x86/include/asm/bzimage.h @@ -6,6 +6,6 @@ unsigned long bzimage_headroom(void *image_start, unsigned long image_leng= th); =20 int bzimage_parse(void *image_base, void **image_start, - unsigned long *image_len, unsigned int *align); + unsigned long *image_len); =20 #endif /* __X86_BZIMAGE_H__ */ diff --git a/xen/arch/x86/pv/dom0_build.c b/xen/arch/x86/pv/dom0_build.c index e9fa8a9a82..d8043fa58a 100644 --- a/xen/arch/x86/pv/dom0_build.c +++ b/xen/arch/x86/pv/dom0_build.c @@ -416,7 +416,7 @@ int __init dom0_construct_pv(struct domain *d, =20 d->max_pages =3D ~0U; =20 - if ( (rc =3D bzimage_parse(image_base, &image_start, &image_len, NULL)= ) !=3D 0 ) + if ( (rc =3D bzimage_parse(image_base, &image_start, &image_len)) !=3D= 0 ) return rc; =20 if ( (rc =3D elf_init(&elf, image_start, image_len)) !=3D 0 ) --=20 2.44.0